JP7181835B2 - body support device - Google Patents

Description

The present invention relates to body support apparatus.

2. Description of the Related Art A body support device that supports at least a part of the body WHEREIN: The technique which maintains a user's comfort by circulating air is known. For example, Patent Literature 1 discloses an airflow mat that is used by laying it on the seat surface of a chair. This air circulating mat includes a bag-like body, air blowing means, spacers, and an air circulating portion. The bag-shaped body is formed of an upper sheet that prevents air from leaking and has moisture permeability, and a lower sheet that prevents air from leaking. The air blowing means is attached to an opening provided at a predetermined end of the upper sheet or the lower sheet, and the spacer is arranged inside the bag. The air flow passage is provided at the end of the bag-shaped body located on the opposite side of the air blowing means with respect to the central portion.

Patent No. 6156783

In the air circulation type mat described above, the air that is forcibly sucked from the outside as the air blowing means is driven flows through the air passage inside the bag-shaped body and is released to the outside from the air passage. Alternatively, the air inside the bag-shaped body is forcibly discharged to the outside as the air blowing means is driven, and the outside air is taken into the air passage through the air flow passage and circulated. The air circulation type mat cools the user by such air circulation. However, there is room for further consideration with respect to the circulation of air to keep the user comfortable.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a body support device that has a rational structure for circulating air and that can keep the user comfortable. and

One aspect of the present invention provides a body support device that includes a body portion and a blower device. The body portion is configured to support at least a portion of the user's body. The blower includes a housing and a fan. The housing has an intake port and an exhaust port, and is detachably attached to the main body. A fan is housed in the housing. The body portion includes a first sheet, a second sheet, and a first spacer. The first sheet has a first surface arranged on the body side of the user and a second surface opposite to the first surface. The second sheet is arranged on the second surface side of the first sheet so as to face at least a portion of the first sheet. A first spacer is disposed between the first sheet and the second sheet. At least part of the region of the first sheet facing the second sheet includes a high air permeability region having a higher air permeability than the second sheet. The air blower is configured to suck air from the outside of the main body through the air inlet through the high air permeability region and discharge the air to the outside of the main body through the air outlet as the fan rotates.

In the body support device of this aspect, the air is sucked from the outside of the main body through the high air permeability region of the first sheet arranged on the body side of the user, into the air blower through the air intake, and through the air blower. As a result, an air flow is generated that is discharged from the exhaust port to the outside of the main body. At this time, the air flows around the user's body and can give the user a cool feeling. In addition, since moisture such as perspiration is sucked into the second surface side of the first sheet, which has a lower humidity than the first surface side, through the high air permeability region along with the air, dampness can be eliminated. Further, by securing a gap between the first sheet and the second sheet by the first spacer arranged between the first sheet and the second sheet, air flow between the first sheet and the second sheet can enhance sexuality. Thus, according to this aspect, there is provided a body support device that has a rational configuration for circulating air and that can keep the user comfortable.

The body support device in this aspect may be a device configured to support at least a part of the user's body. seats, strollers, various beds and mattresses. In addition, users include not only humans but also animals such as pets.

The first sheet and the second sheet do not necessarily have to be separate sheets, and one continuous sheet may be folded into two layers to form the first sheet and the second sheet, respectively. Also, the first sheet and the second sheet may be connected via another sheet (for example, a gusset).

In one aspect of the present invention, the second seat may have a mounting hole through which the housing can be attached and detached. In addition, the housing is detachably attached to the mounting hole with the air inlet disposed between the first sheet and the second sheet and the air outlet disposed on the opposite side of the second sheet from the first sheet. may be worn. According to this aspect, the air inlet of the blower is arranged to face the first seat. Therefore, the air outside the main body can be efficiently sucked through the high air permeability region.

In one aspect of the present invention, the first spacer may be configured to be removable from the first sheet and the second sheet. According to this aspect, for example, when the user does not use the blower, the user can use the body support device with the first spacer removed together with the blower.

One aspect of the present invention provides a body support device that includes a body portion and a blower device. The body portion is configured to support at least a portion of the user's body. The blower includes a housing and a fan. The housing has an air inlet and an air outlet. A fan is housed in the housing. The body portion includes a first sheet and a second sheet. The first sheet has a first surface positioned on the body side and a second surface opposite to the first surface. The second sheet has an attachment hole for a blower and is arranged to face at least a portion of the first sheet on the second surface side. The housing is removably mounted in the mounting hole with the air inlet positioned between the first and second seats and the air outlet positioned on the opposite side of the second seat from the first seat. be. At least part of the area of the first sheet facing the second sheet includes a high air permeability area having a higher air permeability than the second sheet. The air blower is configured to suck air from the outside of the main body through the air inlet through the high air permeability region and discharge the air to the outside of the main body through the air outlet as the fan rotates.

In the body support device of this aspect, the air is sucked from the outside of the main body through the high air permeability region of the first sheet arranged on the body side of the user, into the air blower through the air intake, and through the air blower. As a result, an air flow is generated that is discharged from the exhaust port to the outside of the main body. At this time, the air flows around the user's body and can give the user a cool feeling. In addition, since moisture such as perspiration is sucked into the second surface side of the first sheet, which has a lower humidity than the first surface side, through the high air permeability region along with the air, dampness can be eliminated. In the housing, the intake port is arranged between the first sheet and the second sheet, and the exhaust port is arranged on the side opposite to the first sheet with respect to the second sheet. It is arranged so as to face the first sheet. Therefore, the air outside the main body can be efficiently sucked through the high air permeability region. Thus, according to this aspect, there is provided a body support device that has a rational configuration for circulating air and that can keep the user comfortable.

In one aspect of the present invention, the second sheet may have at least one communication hole that communicates between the space between the first sheet and the second sheet and the outside of the main body. According to this aspect, even if the high air permeability region is covered by the user's body, it is possible to ensure air flow through the communication holes.

In one aspect of the invention, the body support apparatus is configured as a chair including a seat portion configured to support the buttocks of a user and a backrest portion configured to support the back of the user. may Further, the high air permeability region may be provided at least in the backrest portion. According to this aspect, it is possible to effectively cool the back, which tends to sweat the most when sitting.

One aspect of the present invention provides a body support device that includes a frame, a body portion, and a blower device. The frame includes legs with wheels and supports connected to the legs. The main body is removably supported by the support and configured to support at least a portion of the user's body. The blower includes a housing and a fan. The housing has an air inlet and an air outlet and is removably attached to the main body or frame. A fan is housed in the housing. The body portion includes a first sheet and a second sheet. The first sheet has a first surface positioned on the body side and a second surface opposite to the first surface. The second sheet is arranged to face at least a portion of the first sheet on the second surface side. At least part of the region of the first sheet facing the second sheet includes a high air permeability region having a higher air permeability than the second sheet. The air blower is configured to suck air from the outside of the main body through the air inlet through the high air permeability region and discharge the air to the outside of the main body through the air outlet as the fan rotates. In addition, the body support device of this aspect can be implemented as, for example, a stroller, a wheelchair, a pet pushcart, and the like.

In the body support device of this aspect, the air is sucked from the outside of the main body through the high air permeability region of the first sheet arranged on the body side of the user, into the air blower through the air intake, and through the air blower. As a result, an air flow is generated that is discharged from the exhaust port to the outside of the main body. At this time, the air flows around the user's body and can give the user a cool feeling. In addition, since moisture such as perspiration is sucked into the second surface of the first sheet, which has a lower humidity than the first surface, along with the air, dampness can be eliminated. Thus, according to this aspect, there is provided a body support device that has a rational configuration for circulating air and that can keep the user comfortable.

In one aspect of the present invention, at least a portion of the support portion of the frame that constitutes the backrest portion that supports the back of the user may include a mesh portion. The second seat may have a mounting hole to which the housing is removably mounted. The housing may be mounted in the mounting hole with the air inlet positioned between the first and second seats and the air outlet positioned on the opposite side of the second seat from the first seat. . Then, the body portion may be supported by the support portion so that the exhaust port faces the mesh portion. According to this aspect, the air discharged from the exhaust port of the blower can pass through the mesh portion to the rear side.

In one aspect of the invention, the body support device may further comprise a second spacer disposed between the support portion and the body portion and configured to ensure a gap between the blower device and the mesh portion. . According to this aspect, it is possible to prevent unevenness from occurring in the first seat on the user side due to the air blower coming into contact with the mesh portion, thereby improving comfort for the user.

1 is an overall perspective view of a chair; FIG. It is a rear view of a chair. It is explanatory drawing which shows the cross section of a chair partially. It is an explanatory view showing the first sheet viewed from the outer surface side. FIG. 4 is an explanatory view of the seat body as seen from the inner surface side of the first seat in a state where it is removed from the frame and spread out; FIG. 4 is an explanatory view showing the seat body when the fan unit is attached and detached; FIG. 4 is a perspective view of the fan unit with the ring member removed from the main body; 4 is a cross-sectional view of the fan unit; FIG. 1 is an overall perspective view of a stroller; FIG. 1 is an overall perspective view of a stroller with a part of the first seat turned over; FIG. It is explanatory drawing which shows the cross section of a stroller partially. FIG. 4 is an explanatory diagram showing the stroller when the fan unit and the seat body are attached and detached. It is an explanatory view showing the first sheet viewed from the inner surface side. It is an explanatory view showing the second sheet viewed from the inner surface side. FIG. 4 is an explanatory diagram of a spacer; It is explanatory drawing which shows the cross section of another stroller partially.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First embodiment]
A chair 1 according to the first embodiment will be described below with reference to FIGS. 1 to 6. FIG. In the following description, for the sake of convenience, the up-down, left-right, and front-rear directions of the chair 1 are defined with reference to the state in which the user sits on the chair 1 placed on the ground. That is, the head side of the seated user is the upper side, the leg side is the lower side, the left side is the left side, the right side is the right side, the chest side is the front side, and the back side is the rear side.

First, a schematic configuration of the chair 1 will be described. As shown in FIGS. 1 to 3, the chair 1 of the present embodiment includes a seat portion 11 that supports the buttocks of a user (seated person), a backrest portion 12 that supports the back, and legs 21. chair for the ceremony. A part of the sheet that constitutes the front surface of the backrest part 12 (that is, the support surface that contacts and supports the back of the user) is configured as a highly air permeable region 317 covered with mesh fabric. Two fan units 8 are attached to the seat forming the back surface of the backrest portion 12 . Although details will be described later, an internal space 330 is formed between the seat on the front side and the seat on the back side of the backrest portion 12 . The fan unit 8 is attached such that the air intake port 844 (see FIG. 8) faces the internal space 330 and the air exhaust port 848 is arranged on the rear side of the seat on the back side of the backrest portion 12 .

When the fan unit 8 is driven, the air in the internal space 330 is sucked into the fan unit 8 through the intake port 844 and is discharged from the exhaust port 848 on the back side of the backrest portion 12 . Along with this, the air around the user's back flows into the internal space 330 through the high air permeability region 317 (mesh fabric) on the front side of the backrest portion 12 . With such a configuration, the chair 1 can give the user a feeling of coolness.

The detailed configuration of the chair 1 will be described below. The chair 1 comprises a frame 2, a seat body 3 and a fan unit 8, as shown in FIGS.

Frame 2 will be described. As shown in FIGS. 1-3, the frame 2 is configured to support the seat body 3 . More specifically, the frame 2 includes four legs 21 to be placed on the ground, floor, or the like, and a pair of supports 23 connected to the legs 21 . The support portion 23 is a portion to which the seat body 3 is attached, and is formed as a substantially L-shaped elongated member. A pair of armrests 25 are attached to the legs 21 . In addition, in this embodiment, the frame 2 is configured to be foldable via hinges.

The seat body 3 will be explained. As shown in FIGS. 1 to 3, the seat body 3 is a member that supports the user's body and is detachable from the frame 2. As shown in FIG. In this embodiment, the seat body 3 is configured as a member that supports the user's buttocks and back while being supported by the frame 2 . In addition, in this embodiment, the seat body 3 has an outer surface 311 (that is, a support surface or contact surface that supports the buttocks and back) and an inner surface 312 (that is, a surface on the opposite side of the outer surface 311) that is arranged on the body side of the user. a first sheet 31 having a surface), a second sheet 32 arranged to face the inner surface 312 of the first sheet 31 , and arranged between the first sheet 31 and the second sheet 32 . and a spacer 4. Hereinafter, the surface of the second sheet 32 that is exposed to the outside on the back side is referred to as an outer surface 321, and the surface facing the inner surface 312 of the first sheet 31 (ie, the surface opposite to the outer surface 321) is referred to as an inner surface 322. .

As shown in FIGS. 4 and 5, the first seat 31 has a generally rectangular shape when unfolded, and includes a first portion 313 corresponding to the seat portion 11 (see FIG. 1) and a backrest portion 12 (see FIG. 1). and a second portion 314 corresponding to FIG. 1). Bag-like frame mounting portions 371 are provided in portions of the first portion 313 corresponding to the left and right front end portions of the seat portion 11 . In addition, bag-like frame mounting portions 371 are also provided in portions of the second portion 314 corresponding to the left and right upper end portions of the backrest portion 12 . The seat body 3 is attached to the frame 2 by inserting both ends of the support portion 23 into the frame attachment portions 371 (see FIGS. 1 and 2). A battery housing portion 373 is provided on the inner surface of the first portion 313 at a position corresponding to the rear end portion of the seat portion 11 . In this embodiment, the battery compartment 373 is configured as a flap pocket with a snap-on lid. The battery housing portion 373 can house a battery unit 91 containing a battery 911 as a power supply for the fan unit 8 (see FIG. 3).

The first sheet 31 includes a low air permeability region 316 with relatively low air permeability and a high air permeability region 317 with higher air permeability than the low air permeability region 316 . More specifically, most of the first sheet 31 is made of a fabric with relatively low air permeability and is configured as a low air permeability region 316 . Only the central portion of the portion 314 is configured as a high air permeability region 317 with a highly air permeable mesh fabric. The position and size of the high air permeability region 317 are set so that when an average-sized adult male leans against the backrest portion 12, the mesh fabric contacts most of the back.

In this embodiment, the fabric constituting the low air permeability region 316 adopts a fabric having an air permeability of 10 cc/cm ² /s or less as measured by JIS L1096-1998 6.27 air permeability A method (Fragile method). ing. On the other hand, the air permeability of the mesh fabric forming the high air permeability region 317 is 100 cc/cm ² /s or more. That is, the air permeability of the high air permeability region 317 is significantly higher than the air permeability of the low air permeability region 316 .

As shown in FIGS. 2, 3 and 5, the second sheet 32 is arranged on the inner surface 312 side of the first sheet 31 so as to overlap a portion of the second portion 314 (area 331, see FIG. 4). , is joined to the first sheet 31 . In other words, the portion of the seat body 3 corresponding to the seat portion 11 is composed of a single-layer sheet, while a part of the portion corresponding to the backrest portion 12 is composed of a two-layer sheet. It is The second sheet 32 is arranged so as to overlap a region 331 of the second portion 314 including the high air permeability region 317 (the portion made of mesh fabric).

In this embodiment, the second sheet 32 is generally rectangular and sized to overlap most of the second portion 314 . In the present embodiment, of the peripheral portion of the second sheet 32, portions other than the lower end portion are joined to the first sheet 31 by stitching. On the other hand, the opening at the lower end of the second seat 32 can be opened and closed via a slide fastener 335 . That is, when the slide fastener 335 is closed, the entire peripheral portion of the second sheet 32 is joined to the first sheet 31 . With this configuration, the first sheet 31 (region 331 ) and the second sheet 32 form the bag-like portion 33 in the backrest portion 12 . An inner space 330 with a closed periphery is formed inside the bag-like portion 33, that is, between the first sheet 31 and the second sheet 32 (see FIG. 3).

In the present embodiment, the second sheet 32, like the low air permeability region 316 of the first sheet 31, has an air permeability of 10 cc/ ^cm2 / It is composed of woven fabric of s or less. The air permeability of the second sheet 32 may be lower than that of the high air permeability region 317 of the first sheet 31 and may be different from that of the low air permeability region 316 of the first sheet 31 . In this embodiment, the outer surface 321 (back surface) of the second sheet 32 is coated with aluminum for heat shielding in order to reduce the influence of radiant heat from the ground.

The second seat 32 also has a mounting hole 325 configured to allow the fan unit 8 to be attached and detached. More specifically, the mounting hole 325 is configured as an opening having approximately the same diameter as the tubular portion 841 (see FIG. 8) of the housing 84 of the fan unit 8 . In this embodiment, the second seat 32 is provided with two mounting holes 325 so that two fan units 8 can be attached and detached. The two mounting holes 325 are vertically spaced apart on the center line of the backrest portion 12 in the left-right direction. The two fan units 8 are attached to the second seat 32 with their parts inserted through the attachment holes 325 . Hereinafter, the peripheral portion of the mounting hole 325 is also referred to as a fan mounting portion 326 . It should be noted that the fan mounting portion 326 is preferably reinforced with a reinforcing material so that the fan unit 8 can be stably mounted. The configuration and attachment/detachment of the fan unit 8 will be detailed later.

Furthermore, the second sheet 32 is provided with a communication hole 328 that communicates the internal space 330 with the outside. In this embodiment, a plurality of communication holes 328 are provided along the peripheral edge of the second sheet 32 . The communication hole 328 is a through hole having a significantly smaller diameter than the mounting hole 325 for the fan unit 8 . Although details will be described later, the communication hole 328 is provided as an opening that allows air to flow into the internal space 330 from the back side of the backrest portion 12 .

As shown in FIGS. 3 and 7, the spacer 4 is arranged between the first sheet 31 and the second sheet 32, that is, in the internal space 330. As shown in FIG. The spacer 4 creates a gap between the first sheet 31 and the second sheet 32 and further between the fan unit 8 (specifically, the intake side cover 843) attached to the first sheet 31 and the second sheet 32. configured to form Thereby, the spacer 4 secures an air flow path in the internal space 330 and maintains comfort when the user leans against the backrest portion 12 .

In this embodiment, the spacer 4 includes a flexible sheet 41 and a plurality of protrusions 43 arranged over the entire surface of the sheet 41 . Sheet 41 and protrusion 43 are integrally formed of resin. Although detailed illustration is omitted, the sheet 41 is formed in a rectangular shape that is one size smaller than the second sheet 32 . Each projection 43 is composed of a plurality of legs protruding from one surface of the sheet 41 and plate-like portions connected to the protruding ends of the legs. Although the projection 43 has some flexibility, it is configured so that it can generally maintain its shape even when an external force is applied in the projecting direction. Therefore, a gap of a predetermined amount or more is maintained between the first sheet 31 and the second sheet 32 by the protrusions 43 . Spaces through which air can flow are formed between the legs of each projection 43 and between adjacent projections 43 .

As shown in FIGS. 5 and 7, in this embodiment, the spacer 4 is arranged in the internal space 330 while being housed in a housing bag 45 (not shown in FIG. 3) made of mesh fabric. there is The accommodation bag 45 is formed in a rectangular shape having approximately the same size as the sheet 41 . Hook surfaces and loop surfaces of hook-and-loop fasteners 46 are attached to the four corners of the storage bag 45 and the inner surface 322 of the second sheet 32 (the front surface, the surface facing the first sheet 31), respectively. As a result, the spacer 4 is attached to the second sheet 32 via the housing bag 45 and held in a positioned state within the internal space 330 .

The fan unit 8 will be described below. The fan unit 8 is detachably attached to the seat body 3 (specifically, the second seat 32). More specifically, as shown in FIGS. 7 and 8, the fan unit 8 includes a body portion 81 and a ring member 89 formed separately from the body portion 81 and detachable from the body portion 81. The flange 845 of the body portion 81 and the flange 893 of the ring member 89 sandwich the fan mounting portion 326 . Note that the basic configuration of the fan unit 8 of this embodiment is the same as the configuration disclosed in Japanese Unexamined Patent Application Publication No. 2018-115646.

First, the body portion 81 will be described. The body portion 81 mainly includes a motor 82 , a fan 83 that is rotationally driven by the motor 82 , and a housing 84 that accommodates the motor 82 and the fan 83 .

Motor 82 and fan 83 are coaxially arranged within housing 84 . A brushless motor is employed as the motor 82 in this embodiment. The motor 82 has a motor shaft that is rotationally driven around the rotation axis A1 together with the rotor. Fan 83 is configured as an axial fan having a plurality of blades. As the motor 82 is driven, the fan 83 is rotated integrally with the motor shaft around the rotation axis A1.

The housing 84 includes a cylindrical portion 841 to which the ring member 89 is attached, an intake side cover 843 having an intake port 844, a flange 845 provided around the intake side cover 843, and an exhaust side cover 847 having an exhaust port 848. including.

The cylindrical portion 841 is a portion formed in a cylindrical shape and arranged coaxially with the motor 82 and the fan 83 . The tubular portion 841 has an outer diameter approximately equal to that of the attachment hole 325 (see FIG. 5) provided in the seat body 3 . The intake-side cover 843 is arranged to cover the end on the intake side of the fan 83 of the two open ends of the cylindrical portion 841 . Although not shown in detail, intake side cover 843 includes a plate-like portion arranged in the center and a plurality of ribs extending radially from the plate-like portion. The intake port 844 is a through hole formed between the plate-like portion and the plurality of ribs, and penetrates the intake side cover 843 in the direction of the rotation axis A1. The flange 845 is provided so as to protrude radially outward from the outer circumference of the intake side cover 843 .

The exhaust-side cover 847 is formed in a circular dome shape as a whole, and is arranged to cover the exhaust-side end of the fan 83 of the two open ends of the cylindrical portion 841 . The exhaust side cover 847 includes a plate-like portion arranged in the central portion and a plurality of ribs radially and arch-shaped extending from the plate-like portion. The exhaust port 848 is a through hole formed between the plate-like portion and the plurality of ribs, and penetrates the exhaust side cover 847 in the direction of the rotation axis A1 and in the direction intersecting the rotation axis A1.

A recess is provided in a part of the exhaust side cover 847 in the circumferential direction, and a connector 823 electrically connected to the motor 82 is arranged on the rotation axis A1 side of the recess. A connection cable 93 can be connected to the connector 823 as shown in FIGS. Motor 82 is electrically connected to battery unit 91 via connection cable 93 . Although detailed illustration is omitted, in the present embodiment, the battery unit 91 incorporates a battery 911, instructs to start and stop driving the motor 82, and controls the air volume of the fan 83 (that is, the number of revolutions of the motor 82). It has operation buttons for inputting setting instructions. The battery unit 91 also includes a controller (for example, a microcomputer having a CPU, not shown). The controller controls driving of the motor 82 according to the input instructions.

Next, the ring member 89 will be explained. As shown in FIGS. 7 and 8, ring member 89 includes tubular portion 891 and flange 893 . The tubular portion 891 is formed as a short cylindrical body which is detachably attached to the outer peripheral portion of the tubular portion 841 of the main body portion 81 . The flange 893 is provided so as to protrude radially outward from one axial end of the cylindrical portion 841 .

Further, the housing 84 and the ring member 89 are provided with a structure for attaching the ring member 89 to the housing 84 .

More specifically, a substantially L-shaped guide groove 851 is provided on the outer peripheral surface of the tubular portion 841 of the housing 84 . On the other hand, the inner peripheral surface of the cylindrical portion 891 of the ring member 89 is provided with a locking projection 854 that protrudes radially inward. The locking projection 854 is sized to be insertable into the guide groove 851 . The locking projection 854 is inserted into the guide groove 851 and guided along the guide groove 851 in the process of attaching and detaching the ring member 89 to and from the housing 84 .

Further, an engaging recess 856 is provided on the outer peripheral surface of the tubular portion 841 of the housing 84 . On the other hand, a locking piece 857 is provided on the tubular portion 891 of the ring member 89 . The locking piece 857 is formed integrally with the tubular portion 891 so as to extend in the circumferential direction of the tubular portion 891 as a flexible band-shaped member. The locking piece 857 is configured to be lockable to the locking recess 856 via a claw (not shown) projecting radially inward from the tip. The ring member 89 is attached to the housing 84 by arranging the locking protrusions 854 in the circumferentially extending portions of the guide grooves 851 and locking the locking pieces 857 in the locking recesses 856 . be.

The attachment and detachment of the fan unit 8 with respect to the seat body 3 (specifically, the second seat 32) will be described below.

When attaching the fan unit 8 to the second seat 32, the user first opens the slide fastener 335 and inserts the housing 84 with the ring member 89 removed into the bag-like portion 33 as shown in FIG. insert. Further, the user inserts the housing 84 into the attachment hole 325 of the second seat 32 while the intake side cover 843 is arranged inside the bag-like portion 33 (internal space 330), and the flange 845 of the housing 84 is inserted into the fan. The tubular portion 841 and the exhaust side cover 847 are brought into contact with the front surface of the mounting portion 326 (the surface on the side of the first sheet 31 ) and protrude from the mounting hole 325 to the outside. At this stage, the seat body 3 may be removed from the frame 2 or attached to the frame 2 . Moreover, the spacer 4 housed in the housing bag 45 is removed from the second sheet 32 in advance. Note that the spacer 4 can be removed from the bag-like portion 33 in order to improve workability.

The user attaches the ring member 89 to the tubular portion 841 protruding to the outside (rear) of the second seat 32 . Specifically, the user aligns the ring member 89 with the housing 84 so that the locking projection 854 faces the receiving opening of the guide groove 851 (see FIG. 7), and the locking projection 854 guides The ring member 89 is moved rearward with respect to the housing 84 while being guided along the portion of the groove 851 extending in the direction of the rotation axis A1. After that, the user rotates the ring member 89 in the clockwise direction CW with respect to the housing 84 while the locking projection 854 is guided along the circumferentially extending portion of the guide groove 851 . When the claws of the locking pieces 857 are locked in the locking recesses 856, the attachment of the ring member 89 to the housing 84 is completed.

The locking protrusion 854 abuts against the restricting surface 852 of the guide groove 851 (the exhaust-side end surface of the portion of the guide groove 851 extending in the circumferential direction), thereby causing the ring member 89 to move toward the housing 84 in the direction of the rotation axis A1. are restricted from moving away from Further, the ring member 89 is restricted from moving in the circumferential direction with respect to the housing 84 by engaging the claws of the locking pieces 857 with the locking recesses 856 . In this manner, the fan mounting portion 326 is held between the flange 845 of the housing 84 and the flange 893 of the ring member 89, and the fan unit 8 is mounted on the second seat 32. As shown in FIG.

As shown in FIG. 3, when the slide fastener 335 is closed, the entire peripheral edge of the second sheet 32 is joined to the first sheet 31 (area 331). As a result, the internal space 330 and the outside of the bag-like portion 33 are mainly separated from the fan unit 8, the high air permeability region 317 of the first sheet 31 (region 331), and the communication holes 328 (FIG. 1) of the second sheet 32. and FIG. 2). Further, by connecting the fan unit 8 to the battery unit 91 via the connection cable 93, the fan unit 8 becomes operable.

When detaching the fan unit 8 from the second seat 32, the user removes the claws of the locking pieces 857 from the locking recesses 856, and then moves the ring member 89 in the direction opposite to the mounting direction with respect to the housing 84. It will be. That is, the ring member 89 is removed from the housing 84 by relatively moving in the counterclockwise direction CCW and then moving away from the housing 84 in the direction of the rotation axis A1. After that, the user can open the slide fastener 335 , put his/her hand into the bag-like portion 33 , and take out the housing 84 .

The mode of use of the chair 1 and its effects will be described below.

For example, when cooling the body is desired in a high-temperature environment, the user can use the chair 1 with the fan unit 8 attached to the seat body 3 as described above.

When the user inputs a drive start instruction via an operation button (not shown) of the battery unit 91, the motor 82 starts to drive and the fan 83 rotates. Along with this, the air is sucked into the housing 84 from the outside of the seat body 3 through the high air permeability region 317 of the first seat 31 on the user's body side, through the air intake port 844 , and exhausted through the housing 84 . An air flow is generated that is discharged from the opening 848 to the outside of the sheet body 3 (the back side of the second sheet 32). At this time, the air flows around the user's body and can give the user a cool feeling. In addition, since moisture such as perspiration passes through the high air permeability region 317 and is sucked into the inner surface 312 side (internal space 330) of the first sheet 31, which has lower humidity than the outer surface 311 side, together with the air, stuffiness can be eliminated. can be done. Further, the spacer 4 arranged between the first sheet 31 and the second sheet 32 secures a gap between the first sheet 31 and the second sheet 32, so that the first sheet 31 and the second sheet 32 are separated from each other. It is possible to increase the fluidity of the air in between. In this embodiment, since the high air permeability region 317 is provided in the backrest portion 12, it is possible to effectively cool the back portion, which tends to sweat the most when sitting.

In addition, in the present embodiment, the housing 84 of the fan unit 8 has an air intake port 844 disposed between the first seat 31 and the second seat 32 (internal space 330 ), and an air discharge port 848 with respect to the second seat 32 . It is attached to the mounting hole 325 of the second sheet 32 while being arranged on the side opposite to the first sheet 31 (on the outer surface 321 side). As a result, the intake port 844 faces the first sheet 31 having the high air permeability region 317 . Therefore, air outside the seat body 3 can be efficiently sucked through the high air permeability region 317 . The spacer 4 between the first seat 31 and the second seat 32 is designed so that the first seat 31 comes into contact with the fan unit 8 (specifically, the intake side cover 843) when the user leans back on the backrest portion 12. can prevent you from doing so. As a result, the user does not feel that the back of the user is hit by the fan unit 8, and the comfort can be maintained.

In addition, in the present embodiment, the second seat 32 has a plurality of communication holes 328 that communicate between the internal space 330 between the first seat 31 and the second seat 32 and the outside of the seat body 3 . As a result, even if the high air permeability region 317 is covered by the user's body, the air outside the sheet body 3 is passed through the communication holes 328 from the outer surface 321 side of the second sheet 32 and enters the intake port. The air is sucked into the housing 84 through the housing 84 and discharged from the exhaust port 848 to the outside of the seat body 3 (back side of the second seat 32). That is, air flow through the communication holes 328 is ensured.

On the other hand, when the user does not need cooling of the body by the fan unit 8, the user removes the fan unit 8 from the second seat 32, attaches only the seat main body 3 to the frame 2, and sets the chair 1 as described above. can also be used. In this case, the user can also remove the spacer 4 together with the fan unit 8 . Also, the user can use the fan unit 8 removed from the chair 1 alone or by attaching it to his/her clothes.

Correspondence between each component of the first embodiment and each component of the present invention is shown below. The chair 1 is an example of a "body support" and a "chair". The seat main body 3 is an example of a "main body portion". The fan unit 8, housing 84, intake port 844, exhaust port 848, and fan 83 are examples of "blower," "housing," "intake port," "exhaust port," and "fan," respectively. The first sheet 31, the second sheet 32, and the spacer 4 are examples of "first sheet," "second sheet," and "first spacer," respectively. The outer surface 311 and the inner surface 312 of the first sheet 31 are examples of the "first surface" and the "second surface", respectively. The high air permeability area 317 is an example of a "high air permeability area". Mounting hole 325 is an example of a "mounting hole." The communication hole 328 is an example of the "communication hole 328". The seat portion 11 and the backrest portion 12 are examples of the "seat portion" and the "backrest portion", respectively.

[Second embodiment]
A stroller 51 according to the second embodiment will be described below with reference to FIGS. 9 to 15. FIG. For the sake of convenience, in the following description, as in the case of the chair 1 of the first embodiment, the baby stroller 51 placed on the ground is seated on the baby stroller 51. Shall define the direction. Also, the same reference numerals are assigned to the same configurations as in the first embodiment, and the description thereof is omitted or simplified as appropriate.

First, a schematic configuration of the stroller 51 will be described. As shown in FIGS. 9 to 11, the stroller 51 of this embodiment includes a seat portion 511 that supports the buttocks of the user (seated person), a backrest portion 512 that supports the back, and legs 61 with wheels 611. It is a movable chair containing Two fan units 8 (see FIGS. 7 and 8) are attached to the seat forming the back surface of the backrest portion 512 . As in the chair 1 of the first embodiment, the fan unit 8 draws air from the air inlet 844 through the seat forming the front surface of the backrest portion 512 (that is, the support surface that contacts and supports the user's back). The air is sucked in and discharged from the exhaust port 848 on the back side of the backrest portion 512 . With such a configuration, the stroller 51 can give the user a feeling of coolness.

A detailed configuration of the stroller 51 will be described below. As shown in FIGS. 9 to 12, stroller 51 includes frame 6, seat body 7, spacer 70, and fan unit 8. As shown in FIGS.

Frame 6 will be explained. As shown in FIGS. 9-12, the frame 6 is configured to support the seat body 7. As shown in FIGS. More specifically, the frame 6 includes four legs 61 to be placed on the ground, floor, or the like, and supports 63 connected to the legs 61 . A wheel 611 is rotatably supported at the lower end of each leg 61 . The support portion 63 is a portion that supports the seat body 7 and is configured so that the seat body 7 can be placed thereon. More specifically, the support portion 63 is a substantially L-shaped support body in a side view, and constitutes the seat portion 511 and the backrest portion 512 . A portion of the support portion 63 that constitutes the backrest portion 512 is a mesh portion 631 with high air permeability.
It is said that A pocket 633 capable of accommodating luggage is provided on the rear surface of the upper end of the support portion 63 . In this embodiment, the battery unit 91 (not shown) is housed in the pocket 633 . A guard for preventing the user from falling, a handle, and a sunshade cover are connected to the support portion 63 . Note that the frame 6 is configured to be foldable via hinges.

The seat body 7 will be explained. As shown in FIGS. 9 to 12, the seat body 7 is a member that supports the user's body, and is detachably attached to the support portion 63 of the frame 6 together with spacers 70, which will be described later. In this embodiment, the seat body 7 is configured as a member that supports the user's buttocks and back while being supported by the frame 6 . Further, in this embodiment, the sheet body 7 includes a first sheet 71 having an outer surface 711 and an inner surface 712 arranged on the body side of the user, and the inner surface 712 of the first sheet 71 is arranged to face the first sheet 71 . and a second sheet 72 . In the following description, the surface of the second sheet 72 located on the support portion 63 side is referred to as the outer surface 721 , and the surface facing the inner surface 712 of the first sheet 71 (that is, the surface opposite to the outer surface 721 ) is referred to as the inner surface 722 . It says.

As shown in FIGS. 9 and 13 , the first seat 71 has a substantially rectangular shape in the unfolded state, and includes a portion corresponding to the seat portion 511 and a portion corresponding to the backrest portion 512 . In this embodiment, the first sheet 71 is entirely made of three-dimensional mesh fabric. A three-dimensional mesh fabric is, for example, a knitted or woven fabric of a plurality of layers of mesh connected by connecting threads, or a three-dimensional network structure, and is a material having high air permeability and cushioning properties. Note that the air permeability of the first sheet 71 is 100 cc/cm ² /s or more.

Furthermore, the first sheet 71 is provided with a plurality of through-holes 715 through which the belts 635 attached to the support portions 63 of the frame 6 are passed. Hook-and-loop fasteners 716 for fixing the first sheet 71 to the second sheet 72 are attached to a plurality of locations on the peripheral edge of the inner surface 712 of the first sheet 71 .

As shown in FIGS. 11 and 12 , the second sheet 72 is arranged on the inner surface 712 side of the first sheet 71 so as to overlap substantially the entire first sheet 71 and is connected to the first sheet 71 . That is, in this embodiment, the entire seat body 7 (the entire portion corresponding to the seat portion 511 and the entire portion corresponding to the backrest portion 512) is composed of a plurality of layers of sheets. For this reason, as shown in FIG. 14, the second sheet 72 also has substantially the same rectangular shape as the first sheet 71 in the unfolded state. A gusset cloth 723 for attaching the second seat 72 to the support portion 63 of the frame 6 is connected to the upper end portion and left and right end portions of the portion of the second seat 72 corresponding to the backrest portion 512 .

In this embodiment, in order to improve sitting comfort, the second sheet 72 has a sheet-like sponge sandwiched between two layers of sheets, and the peripheral edges of the two layers of sheets are sewn together. It is formed by However, hereinafter, for convenience of explanation, the two-layered sheet with the sponge sandwiched therebetween will be referred to as the second sheet 72 as a whole. The second sheet 72 (more specifically, at least one of the two layers of the second sheet 72) is made of fabric with an air permeability of 10 cc/cm ² /s or less. The air permeability of the second sheet 32 should be lower than that of the first sheet 31 . As described above, the entire first sheet 71 is made of three-dimensional mesh fabric, so in the present embodiment, the entire first sheet 71 is a high air permeability region having higher air permeability than the second sheet 72. You can also say. As with the second sheet 32 of the first embodiment, the outer surface 721 of the second sheet 72 is coated with aluminum for heat shielding.

12 and 14, the second seat 72 has two mounting holes 325 through which the fan unit 8 can be attached and detached. The two mounting holes 325 are vertically spaced apart on the center line of the second seat 72 (backrest portion 512) in the left-right direction. The housings 84 of the two fan units 8 are attached to the second seat 32 with the intake side cover 843 arranged on the inner surface 722 side.

Further, the second sheet 72 is provided with a plurality of through holes 725 through which the belt 635 is passed, like the first sheet 71 . Hook-and-loop fasteners 726 are attached to a plurality of locations on the peripheral edge of the inner surface 722 of the second sheet 72 . The hook-and-loop fastener 726 is arranged at a position corresponding to the hook-and-loop fastener 716 of the first sheet 71 , and the first sheet 71 and the second sheet 72 are joined by the engagement of the hook-and-loop fasteners 716 , 726 .

The spacer 70 will be explained. As shown in FIGS. 11, 12 and 15, the spacer 70 is arranged between the support portion 63 of the frame 6 and the second seat 72 of the seat body 7. As shown in FIGS. In this embodiment, the spacer 70 is configured to secure a gap between the fan unit 8 and the support portion 63 (specifically, the mesh portion 631). Moreover, in this embodiment, the spacer 70 is made of urethane foam and functions as a cushioning material. In addition, in this embodiment, the spacer 70 is formed by laminating a plurality of plate-like urethane foams, but the spacer 70 may be formed of a single plate material.

The spacer 70 is formed in substantially the same rectangular shape as the portion of the second seat 72 corresponding to the backrest portion 512 , and has two fitting holes 701 at positions corresponding to the two mounting holes 325 . Each fitting hole 701 is a through hole having approximately the same diameter as the mounting hole 325 . In addition, the thickness of the spacer 70 is the length of protrusion of the fan unit 8 from the second sheet 72 (outer surface 721) (more specifically, the length of the combined portion of the tubular portion 841 and the exhaust side cover 847 in the direction of the rotation axis A1). ) is set larger than With such a configuration, the spacer 70 is arranged in the portion of the support portion 63 corresponding to the backrest portion 512 , and furthermore, the outer surface 721 of the second seat 72 is arranged on the upper side (front side) thereof so that the outer surface 721 of the second seat 72 faces the spacer 70 . When the main body 7 is placed, the portion of the fan unit 8 protruding from the mounting hole 325 fits into the fitting hole 701 but does not contact the mesh portion 631 . The exhaust port 848 faces the mesh portion 631 through the fitting hole 701 .

Further, the spacer 70 is provided with a plurality of through holes 705 through which the belt 635 is passed, like the first sheet 71 and the second sheet 72 .

The spacer 70 and the sheet body 7 configured as described above are sequentially placed on the support portion 63 , and the belt 635 is passed through the through holes 705 , 725 and 715 . Further, the gusset cloth 723 of the second sheet 72 is attached to the support portion 63 by, for example, hook-and-loop fasteners (not shown) while covering the upper end, left end, and right end of the spacer 70 . Thereby, the seat body 7 and the spacer 70 are integrally supported by the support portion 63 . Although detailed illustration is omitted, the connection cable 93 connected to the fan unit 8 is pulled out from the fitting hole 701 to the rear side of the spacer 70, and the support portion 63 (mesh portion 631) and the spacer 70 are connected to each other. It is connected to the battery unit 91 accommodated in the pocket 633 through the gap.

The manner of use of the stroller 51 and its effects will be described below.

For example, when it is desired to cool the infant's body in a high-temperature environment, the stroller 51 can be used with the fan unit 8 attached to the second seat 72 . The method for attaching and detaching the fan unit 8 to and from the second seat 72 is the same as the method for attaching and detaching the fan unit 8 to and from the second seat 32 in the first embodiment.

When the motor 82 starts to drive and the fan 83 rotates, the air from the outside of the seat body 7 passes through the first seat 71 (that is, the high air permeability region) on the user's body side, and the housing through the air intake port 844. An air flow is generated that is sucked into 84 and discharged to the outside of the seat body 7 (back side of the second seat 72) through the air outlet 848 through the housing 84. As shown in FIG. At this time, the air flows around the user's body and can give the user a cool feeling. In addition, since moisture such as perspiration passes through the first sheet 71 and is sucked into the inner surface 712 side (the second sheet 72 side) of which humidity is lower than the outer surface 711 side of the first sheet 71, together with the air, stuffiness is eliminated. be able to.

Moreover, in this embodiment, the support portion 63 of the frame 6 includes a mesh portion 631 . The housing 84 of the fan unit 8 has an intake port 844 disposed between the first sheet 71 and the second sheet 72 and an exhaust port 848 disposed on the outer surface 721 side of the second sheet 72 (opposite side to the first sheet 71). ) and is attached to the mounting hole 325 . The seat body 7 is supported by the support portion 63 so that the exhaust port 848 faces the mesh portion 631 . Therefore, the air discharged from the exhaust port 848 smoothly flows from the fitting hole 701 to the back side of the stroller 51 through the mesh portion 631 .

Furthermore, in this embodiment, the spacer 70 disposed between the support portion 63 and the seat body 7 prevents the fan unit 8 from coming into contact with the mesh portion 631 to prevent the first seat 71 on the user side from becoming uneven. and the user's comfort can be improved. Further, by fitting the fan unit 8 into the fitting hole 701 of the spacer 70, the positional relationship between the spacer 70 and the seat body 7 is stably maintained. In this embodiment, no spacer is arranged between the first seat 71 and the second seat 72, but the first seat 71 made of three-dimensional mesh fabric with excellent cushioning properties is attached to the back of the fan unit. It is possible to prevent the user from feeling the touch of 8 and maintain comfort.

On the other hand, when cooling of the body by the fan unit 8 is unnecessary, the fan unit 8 is removed from the second seat 32 and only the seat body 7 and the spacer 70 or only the seat body 7 is attached to the frame 6 as described above. A stroller 51 can also be used. Further, instead of the seat body 7, a mattress or the like different from the seat body 7 can be placed on the frame 6 and used.

[Third embodiment]
A stroller 52 according to the third embodiment will be described below with reference to FIG. Most of the structure of the stroller 52 of this embodiment is the same as the stroller 51 of the second embodiment (see FIGS. 9 to 12). In the following description, the same reference numerals are given to the same configurations as in the second embodiment, and the descriptions thereof are omitted or simplified as appropriate.

As shown in FIG. 16, the stroller 52 of this embodiment includes a frame 60 and a seat body 7. As shown in FIG. While the structure of the seat body 7 is the same as that of the second embodiment, the structure of the frame 60 is different from that of the frame 6 of the second embodiment. Also, the seat body 7 is directly supported by the frame 60 without a spacer.

Specifically, the frame 60 includes legs 61 with wheels 611 that are the same as in the second embodiment, and support sections 65 that are different from the second embodiment. The support portion 65 is a substantially L-shaped support body in a side view, and constitutes a seat portion 511 and a backrest portion 512. The portion constituting the backrest portion 512 does not include a mesh portion. Instead, the support 65 has two fittings 651 for the fan unit 8 . The two fitting portions 651 are arranged on the center line of the support portion 65 in the left-right direction with a distance substantially equal to the distance between the two mounting holes 325 of the seat body 7 . Each fitting portion 651 is configured to be able to fit a portion of the fan unit 8 protruding from the mounting hole 325 to the rear side. More specifically, the fitting portion 651 includes a through hole having approximately the same diameter as the maximum diameter of the tubular portion 891 of the ring member 89 and a cylindrical portion provided on the periphery of the through hole and protruding to the rear side. With such a configuration, the seat body 7 is supported by the support portion 65 in a state where the ring member 89 of the fan unit 8 is fitted in the fitting portion 651 . At this time, the exhaust side cover 847 having the exhaust port 848 of the fan unit 8 is arranged on the back side of the support portion 65 and exposed to the outside.

In the stroller 52 configured as described above, as the fan 83 rotates, air is drawn from the outside of the seat body 7 through the first seat 71 (that is, the high air permeability region) on the body side of the user. An air flow is generated that is sucked into the housing 84 through the port 844 and is discharged from the exhaust port 848 through the housing 84 to the outside of the seat body 7 (back side of the second seat 72). Since the exhaust side cover 847 having the exhaust port 848 of the fan unit 8 is exposed to the outside through the fitting portion 651, the air exhausted from the exhaust port 848 is directed to the rear side of the stroller 52. flow smoothly. As described above, the stroller 52 of the present embodiment can also give the user a feeling of coolness and eliminate stuffiness, like the stroller 51 of the second embodiment.

Further, in the stroller 52, the fan unit 8 is fitted to the fitting portion 651 of the support portion 65, so that the positional relationship between the frame 60 and the seat body 7 is stably maintained. Furthermore, since the stroller 52 does not have a spacer arranged between the seat body 7 and the support portion 65, the seat body 7 can be easily removed from the frame 60 when attaching or detaching the fan unit 8, for example. . Further, instead of the seat body 7, a mattress or the like different from the seat body 7 can be placed on the frame 60 and used.

Correspondence between each component of the second and third embodiments and each component of the present invention is shown below. Each of the strollers 51 and 52 is an example of a "body support device", a "chair" and a "stroller". Each of frames 6 and 60 is an example of a "frame". The wheels 611 and legs 61 are examples of "wheels" and "legs", respectively. Each of the support portions 63 and 65 is an example of a “support portion”. The seat main body 7 is an example of a "main body portion". The fan unit 8, housing 84, intake port 844, exhaust port 848, and fan 83 are examples of "blower," "housing," "intake port," "exhaust port," and "fan," respectively. The first sheet 71 and the second sheet 72 are examples of "first sheet" and "second sheet", respectively. The outer surface 711 and the inner surface 712 of the first sheet 71 are examples of the "first surface" and the "second surface", respectively. The entire first sheet 71 is an example of a "high air permeability region". The mesh portion 631 is an example of a “mesh portion”. Mounting hole 325 is an example of a "mounting hole." The communication hole 328 is an example of the "communication hole 328". The spacer 70 is an example of a "second spacer". Seat 11, 511 and backrest 12, 512 are examples of "seat" and "backrest", respectively.

The above embodiments are merely examples, and the present invention is not limited to the illustrated configurations. For example, the configurations exemplified in each of the first to third embodiments can be employed in combination with one or more of the configurations exemplified in other embodiments. Also, part of the configuration illustrated in each of the first to third embodiments may be omitted as appropriate.

Below are examples of further modifications that can be employed. It should be noted that any one of these modifications, or a plurality thereof, may be employed in combination with the chair 1, stroller 51, and stroller 52 shown in the embodiment, or with the inventions described in each claim.

For example, in the chair 1 of the first embodiment, only a portion of the second portion 314 corresponding to the backrest portion 12 of the first seat 31 is provided with the high air permeability region 317 . However, at least a portion of the first portion 313 corresponding to the seat portion 11 may also be provided with the high air permeability region 317, or only at least a portion of the first portion 313 may be provided with the high air permeability region 317. may be Further, as in the second and third embodiments, the entire first sheet 31 may be made of a material having a higher air permeability than the second sheet 32 . Furthermore, the entire first sheet 31 may be made of three-dimensional mesh fabric having high air permeability and cushioning properties, and the spacer 4 may be omitted.

On the contrary, in the strollers 51 and 52 of the second and third embodiments, the seat body 7 is changed to have a spacer disposed between the first seat 71 and the second seat 72, like the seat body 3. good too. In this case, the first sheet 71 may also be configured to have a high air permeability region only in part. Further, when the first sheet 71 is configured to have a high air permeability region only in part and there is a possibility that the high air permeability region is covered by the user's body, the communication hole 328 of the first embodiment may be used. Similarly to , the second sheet 72 is preferably provided with a communication hole that communicates the space between the first sheet 71 and the second sheet 72 with the outside.

The sheet bodies 3, 7 may at least partially comprise two layers of sheet. In the above embodiment, the first sheets 31, 71 and the second sheets 32, 72 are separate sheets, but one continuous sheet is folded into two layers, and each layer is the first sheet. and the second sheet. Also, the first sheets 31, 71 and the second sheets 32, 72 may be connected via another sheet (for example, gusset cloth).

In addition, the materials and air permeability of the sheet bodies 3 and 7 mentioned in the above embodiments are only examples, and at least a part of the area facing the second sheets 32 and 72 of the first sheets 31 and 71 is , second sheets 32 and 72, the air permeability can be changed as appropriate.

The number of fan units 8 that can be attached to the seat bodies 3 and 7 and the mounting positions of the fan units 8 (that is, the number and arrangement of the mounting holes 325) may be changed as appropriate. For example, there may be only one mounting hole 325, or there may be three or more. Also, for example, the attachment holes 325 may be provided in the first sheets 31, 71, and the sheet bodies 3, 7 may include gussets connecting the first sheets 31, 71 and the second sheets 32, 72. In some cases, it may be provided on the gusset cloth.

The configuration of the fan unit 8 may also be changed as appropriate. For example, one housing 84 may house a plurality of fans 83 . In this case, a plurality of motors 82 may be provided corresponding to the number of fans 83 .

Also, the method of attaching the fan unit 8 to the second seats 32 and 72 is not limited to the example of the above embodiment. For example, one of the housing 84 (cylindrical portion 841) and the ring member 89 may be provided with a flexible locking piece, and the other may be provided with a concave portion with which the locking piece can be locked. In this case, the ring member 89 is fitted into the housing 84 in the direction of the rotation axis A1, and the locking pieces are locked in the recesses to complete the mounting. Alternatively, the outer peripheral surface of the housing 84 (cylindrical portion 841) may be provided with a male threaded portion, and the inner peripheral surface of the ring member 89 may be provided with a female threaded portion that can be screwed into the male threaded portion.

Although the chair 1 and the strollers 51 and 52 are illustrated as examples of the body support device in the above-described embodiment, the body support device to which the present invention can be applied is not limited to these examples. For example, it may be embodied as non-collapsible chairs, sofas, wheelchairs, pet pushchairs, vehicle seats, various beds and mattresses.
In addition, the "user" in the present invention includes not only adults, children and infants, but also animals such as pets.

In view of the gist of the present invention and the above-described embodiments, the following aspects are constructed. At least one of the following aspects may be employed alone or in combination with the above-described embodiments, modifications, or the inventions described in each claim.
[Aspect 1]
At least part of the first sheet has cushioning properties.
[Aspect 2]
The body support apparatus further comprises a frame configured to removably support the body portion.
In addition, in this aspect, the frame may directly support the main body portion, or may indirectly support the main body portion via a separate member. Each of the frames 6, 60 in the above embodiments is an example of the "frame" of this aspect.
[Aspect 3]
at least a portion of the first sheet and at least a portion of the second sheet are joined together to form a bag;
The bag-shaped part has an opening that can be opened and closed.
The bag-shaped portion 33 of the above-described embodiment is an example of the "bag-shaped portion" of this aspect.
[Aspect 4]
The spacer is removably housed in the bag-like portion.
[Aspect 5]
the first seat is configured to form the backrest portion and the seat portion;
The second seat is provided corresponding to at least part of the backrest portion.
[Aspect 6]
A plurality of the air blowers are arranged along the center line of the backrest portion in the left-right direction.
[Aspect 7]
The body support apparatus is configured as a folding chair.
[Aspect 8]
The blower includes a connector to which a cable for connecting to an external power supply can be connected,
The connector is arranged outside the main body.

1: Chair, 11: Seat, 12: Backrest, 2: Frame, 21: Leg, 23: Support, 25: Armrest, 3: Seat body, 31: First seat, 311: Outer surface, 312: Inner surface , 313: first portion, 314: second portion, 316: low air permeability region, 317: high air permeability region, 32: second sheet, 321: outer surface, 322: inner surface, 325: mounting hole, 326: fan mounting Part 328: Communication hole 33: Bag-shaped part 330: Internal space 331: Area 335: Slide fastener 371: Frame attachment part 373: Battery storage part 4: Spacer 41: Sheet 43: Protrusion , 45: storage bag, 46: loop fastener, 51, 52: stroller, 511: seat, 512: backrest, 6, 60: frame, 61: leg, 611: wheel, 63, 65: support, 631 : mesh portion 633: pocket 635: belt 651: fitting portion 7: sheet body 71: first sheet 711: outer surface 712: inner surface 715: through hole 716: hook-and-loop fastener 72: third 2 sheets, 721: outer surface, 722: inner surface, 723: gusset cloth, 725: through hole, 726: hook-and-loop fastener, 70: spacer, 701: fitting hole, 705: through hole, 8: fan unit, 81: main body , 82: Motor, 823: Connector, 83: Fan, 84: Housing, 841: Cylindrical portion, 843: Intake side cover, 844: Intake port, 845: Flange, 847: Exhaust side cover, 848: Exhaust port, 851 : guide groove, 852: regulation surface, 854: locking projection, 856: locking recess, 857: locking piece, 89: ring member, 891: cylindrical portion, 893: flange, 91: battery unit, 911: battery , 93: connection cable

Claims (11)

A body support device comprising:
a body configured to support at least a portion of a user's body;
an air blower including a housing having an intake port and an exhaust port and detachably attached to the main body, and a fan housed in the housing;
The main body is
a first sheet having a first surface arranged on the body side and a second surface opposite to the first surface;
a second sheet arranged to face at least a portion of the first sheet on the second surface side;
a first spacer disposed between the first sheet and the second sheet;
At least part of the region of the first sheet facing the second sheet includes a high air permeability region having a higher air permeability than the second sheet,
The air blower is configured to suck air from the outside of the main body through the high air permeability region through the air inlet and to discharge the air to the outside of the main body through the air outlet as the fan rotates. and
A body support apparatus , wherein the first spacer is detachable from the first sheet and the second sheet . A body support apparatus according to claim 1, comprising:
the second seat has a mounting hole through which the housing can be attached and detached,
The housing is configured such that the air inlet is arranged between the first seat and the second seat, and the air outlet is arranged on the opposite side of the second seat from the first seat. A body support device, characterized in that it is removably attached to a mounting hole. A body support device comprising:
a body configured to support at least a portion of a user's body;
A blower device including a housing having a flange, an intake port , an exhaust port , and a tubular portion , a ring member detachable from the housing, and a fan housed in the housing,
The main body is
a first sheet having a first surface arranged on the body side and a second surface opposite to the first surface;
a second seat having a mounting hole through which the housing can be attached and detached , and arranged to face at least a portion of the first seat on the second surface side;
a first spacer arranged in a bag-shaped portion formed by joining at least a portion of the first sheet and at least a portion of the second sheet to each other;
The bag-shaped part is configured to be openable and closable and has an opening through which the housing can be put in and taken out,
The housing is inserted into the mounting hole in a state in which the flange and the intake port are arranged inside the bag-shaped portion , and the exhaust port and the tubular portion are arranged outside the bag-shaped portion ,
The ring member is mounted around the cylindrical portion outside the bag-shaped portion, and configured to sandwich the peripheral edge portion of the mounting hole together with the flange inside the bag-shaped portion,
At least part of the region of the first sheet facing the second sheet includes a high air permeability region having a higher air permeability than the second sheet,
The air blower is configured to suck air from the outside of the main body through the high air permeability region through the air inlet and to discharge the air to the outside of the main body through the air outlet as the fan rotates. A body support apparatus, characterized in that: A body support apparatus according to claim 3 , comprising:
A body support device, wherein the first spacer is detachable from the bag-like portion . A body support device according to any one of claims 1 to 4,
The body support device, wherein the second sheet has at least one communication hole that communicates a space between the first sheet and the second sheet with the outside of the main body. A body support apparatus according to any one of claims 1 to 5,
The body support device is configured as a chair including a seat configured to support the user's buttocks and a backrest configured to support the user's back,
A body support device, wherein the high air permeability region is provided at least in the backrest portion. a frame including legs with wheels and supports connected to the legs;
a body portion removably supported by the support portion and configured to support at least a portion of a user's body;
a blower device including a housing having an air inlet and an air outlet and detachably attached to the main body or the frame; and a fan housed in the housing;
The main body is
a first sheet having a first surface arranged on the body side and a second surface opposite to the first surface;
a second sheet arranged to face at least a portion of the first sheet on the second surface side;
At least part of the region of the first sheet facing the second sheet includes a high air permeability region having a higher air permeability than the second sheet,
The air blower is configured to suck air from the outside of the main body through the high air permeability region through the air inlet and to discharge the air to the outside of the main body through the air outlet as the fan rotates. and
At least a portion of the support portion that constitutes the backrest portion that supports the back of the user includes a mesh portion,
the second seat has a mounting hole to which the housing is detachably mounted;
The housing is configured such that the air inlet is arranged between the first seat and the second seat, and the air outlet is arranged on the opposite side of the second seat from the first seat. Attached to the mounting hole,
A body support device , wherein the body portion is supported by the support portion so that the exhaust port faces the mesh portion . A body support apparatus according to claim 7 , comprising:
The body support device further comprising a second spacer disposed between the support portion and the body portion and configured to secure a gap between the blower device and the mesh portion. a frame including legs with wheels and supports connected to the legs;
a body portion removably supported by the support portion and configured to support at least a portion of a user's body;
a housing having a flange, an intake port, an exhaust port, and a cylindrical portion, and detachably attached to the main body; a ring member detachable from the housing; and a fan housed in the housing. and a blower including
The main body is
a first sheet disposed on the body side;
a second seat having an attachment hole for attaching and detaching the housing,
At least part of the first sheet includes a high air permeability region having a higher air permeability than the second sheet,
In the housing, the flange and the air inlet are arranged between the first seat and the second seat, and the air outlet and the cylindrical portion are arranged with respect to the second seat and away from the first seat. arranged on the opposite side and inserted into the mounting hole of the second sheet,
The ring member is mounted around the cylindrical portion and configured to sandwich the peripheral edge portion of the mounting hole together with the flange,
The air blower is configured to suck air from the outside of the main body through the high air permeability region through the air inlet and to discharge the air to the outside of the main body through the air outlet as the fan rotates. and
A body support device, wherein the second seat is detachable from the frame integrally with the blower device. a frame including legs with wheels and supports connected to the legs;
a body portion removably supported by the support portion and configured to support at least a portion of a user's body;
an air blower including a housing having an intake port and an exhaust port and detachably attached to the main body, and a fan housed in the housing;
The main body is
a first sheet having a first surface arranged on the body side and a second surface opposite to the first surface;
a second sheet arranged to face at least a portion of the first sheet on the second surface side;
At least part of the region of the first sheet facing the second sheet includes a high air permeability region having a higher air permeability than the second sheet,
The air blower is configured to suck air from the outside of the main body through the high air permeability region through the air inlet and to discharge the air to the outside of the main body through the air outlet as the fan rotates. and
the second seat has a mounting hole to which the housing is detachably mounted;
The housing is configured such that the air inlet is arranged between the first seat and the second seat, and the air outlet is arranged on the opposite side of the second seat from the first seat. Attached to the mounting hole,
A body support device, wherein the support portion of the frame has a fitting portion that fits into a portion of the blower device that protrudes from the attachment hole to the outside of the body portion. A body support apparatus according to any one of claims 7 to 10 , wherein the body support apparatus is a stroller.

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