Fan mounting device and helmet device

Abstract

To provide a fan mounting device and a helmet device that can improve wearing comfort of a helmet.SOLUTION: A fan mounting device for mounting a fan unit 22 to a helmet, includes: a sheet body 21 where the fan unit 22 is arranged and that is attached to the helmet and a support sheet 23; and an air diffusion portion 26 that is a flexible sheet portion located between a neck 2 and an air blowing surface of the fan unit 22, and constitutes an air passage through which air diffused in a state of being bent toward the neck 2 passes. The air diffusion portion 26 bent in a direction of the neck 2 diffuses the air and forms air holes 27, so that the air can be sent in a plurality of directions including a direction of the helmet. This improves a sense of fitness of the helmet.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a fan mounting device and a helmet device to which a fan unit can be attached to a helmet.

Background Art

[0002] In order to improve the wearing comfort of an operator wearing a helmet, a fan unit may be attached to the helmet. In Patent Document 1, a bag-shaped body is attached to the edge on the back side of the helmet, and the fan unit is attached therein. Then, the air taken in by the fan unit is sent upward and sent into the helmet to suppress the stuffiness inside the helmet.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The fan unit of Patent Document 1 is intended to send air upward from the fan unit located near the nape of the neck and send the air into the helmet. If the air from the fan unit is sent out not only upward but also in other directions, the air will hit the upper body, around the neck, etc., and the wearing comfort can be improved.

Means for Solving the Problems

[0005] A fan mounting device for solving the above problems is a fan mounting device for attaching a fan unit to a helmet, including a sheet body on which the fan unit is disposed and attached to the helmet, and a flexible sheet portion located between the nape of the neck and the air blowing surface of the fan unit, the flexible sheet portion constituting a ventilation path through which the air diffused in a state of being bent in the direction of the nape of the neck passes.

[0006] According to the above configuration, the flexible sheet portion bent in the direction of the neck muscle can send out the wind in a plurality of directions including the direction of the helmet by diffusing the wind and forming a ventilation path. Thereby, the wearing feeling of the helmet can be improved.

[0007] In the above fan mounting device, the flexible sheet portion may be configured to form a ventilation path for sending out the wind in the vertical direction in a state of being bent in the direction of the neck muscle. According to the above configuration, the wind from the fan unit is sent out into the helmet and in the direction of the upper body of the wearer. Thereby, the wearing feeling of the helmet can be improved.

[0008] In the above fan mounting device, the flexible sheet portion may be configured to form a ventilation path for sending out the wind in the upward and left and right directions in a state of being bent in the direction of the neck muscle. According to the above configuration, the wind from the fan unit is sent out into the helmet and around the left and right necks of the wearer. Thereby, the wearing feeling of the helmet can be improved.

[0009] In the above fan mounting device, the sheet body may include a support sheet to which the fan unit is attached, and a sheet main body to which the support sheet is attached and which is attached to the helmet, and the sheet main body may be configured to include the flexible sheet portion. According to the above configuration, the fan unit can be attached to the sheet main body through the support sheet.

[0010] In the above fan mounting device, the sheet main body may be configured to include a wind diffusion portion directly hit by the air blown from the fan unit, and a plurality of wind holes that form the ventilation path for sending out the wind diffused by the wind diffusion portion to the inner space on the wearer side. According to the above configuration, the wind diffused by the wind diffusion portion can be sent out in a plurality of directions by the ventilation path configured by using the plurality of wind holes.

[0011] In the above-described fan mounting device, the wind diffusion portion and the plurality of wind holes may be formed by punching the seat body. According to the above configuration, the wind holes and the wind diffusion portion can be easily provided by a simple process of just punching the seat body.

[0012] In the above-described fan mounting device, the plurality of wind holes include an upper wind hole that sends wind upward and a lower wind hole that sends wind downward, and the upper wind hole may be configured to have a longer length in the left-right direction than the lower wind hole. According to the above configuration, more wind can be sent to the helmet. Also, the wind sent out from the lower wind hole can be sent out in the direction of the wearer's upper body.

[0013] In the above-described fan mounting device, the plurality of wind holes include an upper wind hole that sends wind upward, a right wind hole that sends wind to the right, and a left wind hole that sends wind to the left, and the right wind hole and the left wind hole may be configured to be arranged symmetrically with respect to a line. According to the above configuration, wind can be sent to the helmet. Also, the wind sent out from the left and right wind holes can be sent out in the same way around the wearer's neck.

[0014] A helmet device for solving the above problems includes a helmet and a fan mounting device for attaching a fan unit to the helmet. The fan mounting device includes a seat body on which the fan unit is disposed and which is attached to the helmet, and a flexible sheet portion located between the neck muscle and the blowing surface of the fan unit, the flexible sheet portion constituting a ventilation path through which the wind diffused in a state of being bent in the direction of the neck muscle passes.

Effect of the Invention

[0015] According to the present invention, the wearing comfort of the helmet can be improved.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, an accessory mounting device and a helmet device according to the present invention will be described with reference to the drawings. <Overall Configuration of Helmet Device> As shown in FIG. 1, the helmet device according to the present embodiment includes a helmet 10 and an accessory mounting device 20. The accessory mounting device 20 is a sheet member (flap) that hangs down in a region from both side surfaces to the back surface of the helmet 10 and is used as a sunshade, a windbreaker, or the like. And a fan unit 22 is attached to the accessory mounting device 20 as an accessory. The helmet device has a function of blowing air to the nape of the wearer's neck 2 and the inside of the helmet 10 when the accessory mounting device 20 is attached to the helmet 10. In the present embodiment, the accessory mounting device 20 is a fan mounting device to which the fan unit 22 is attached.

[0018] In the helmet device of the present embodiment, the front direction refers to the direction in which the face faces when the wearer wears the helmet 10, and the rear direction refers to the direction of the back of the head. Also, the right side of the wearer is referred to as the right side surface direction, and the left side is referred to as the left side surface direction.

[0019] <Configuration of Helmet> The helmet 10 includes a cap body 11. The cap body 11 has a substantially hollow hemispherical shape. The cap body 11 is formed into a substantially hemispherical shape by a resin material such as ABS resin. The cap body 11 is configured with an open end 11a for attachment on the lower surface. In a region in the front direction of the cap body 11 near the open end 11a, a visor portion 13 that protrudes forward is provided to protect the user's face from rain, falling objects, etc. Further, the cap body 11 is provided with a flange portion 14 near the open end 11a other than the visor portion 13. The flange portion 14 is a concave groove that is open upward, for example, a rain gutter. And, as will be described later, an accessory attachment device 20 is attached to the flange portion 14 via an attachment member 24.

[0020] An impact absorbing material such as styrofoam may be disposed on the inner surface of the cap body 11. Further, a hammock may be attached to the inner surface of the cap body 11. The hammock has flexibility and has a curved shape adapted to the wearer's head as a basic shape. The hammock includes an elliptical ceiling portion located at the top of the head and a plurality of legs extending radially from the ceiling portion. Each leg is attached directly or indirectly to the inner surface of the cap body 11 near the open end 11a formed on the lower surface of the cap body 11.

[0021] <First Embodiment> <Description of Accessory Attachment Device> As shown in FIGS. 1 and 2, the accessory attachment device 20 includes a seat body 21, a fan unit 22 as an accessory, and a support seat 23. The accessory attachment device 20 functions as a sunshade and a windbreaker by covering the side of the neck 2. In addition to this, the accessory attachment device 20 blows air to the inside of the helmet 10, the side of the neck 2, and the vicinity of the neck by the fan unit 22.

[0022] The seat body 21 and the support seat 23 are made of a fabric in which a woven fabric is sandwiched between soft synthetic resins. Such a fabric is a vinyl chloride-based multilayer material in which a vinyl chloride sheet is bonded to or sandwiched between a cloth or a woven fabric, or a vinyl chloride paint is applied. It is also a sheet in which vinyl chloride resin is laminated on both sides of a woven fabric of synthetic fibers such as polyester and nylon. Such a fabric has flexibility while being less likely to tear compared to a cloth carrier or a single vinyl chloride sheet, and is excellent in durability. Also, such a fabric is less likely to come apart even at the cut ends. The seat body 21 and the support seat 23 are formed by punching out from a raw material sheet. The seat body 21 includes a flexible sheet portion that can be bent when pressed against the blowing surface of the fan unit 22 or when the wind from the fan unit 22 hits it.

[0023] <Description of the seat body> As shown in FIGS. 1 and 2, the seat body 21 is a rectangular seat material. In the seat body 21, the length of its long side has a length that can be attached from one side surface of the cap body 11 through the back surface to the other side surface. In the seat body 21, the lengths of its right short side 21c and left short side 21d are such that when the upper long side 21a of the seat body 21 is attached to the flange portion 14 of the cap body 11, the lower long side 21b extends to around the wearer's shoulder. The upper long side 21a, the lower long side 21b, the right short side 21c, and the left short side 21d are in a straight line shape. Of course, at least one of the upper long side 21a, the lower long side 21b, the right short side 21c, and the left short side 21d may have a shape other than a straight line shape, for example, a wavy line shape. Also, the lower long side 21b, the right short side 21c, and the left short side 21d may be in an arc shape that bulges outward or concave inward.

[0024] As shown in FIG. 3, when the seat body 21 is attached to the flange portion 14 of the helmet 10 through the attachment member 24, it includes an inner surface 21y that is the surface on the side of the wearer's neck muscle 2 and an outer surface 21x that is on the side opposite to the wearer's neck muscle 2. The space between the wearer's neck muscle 2 and the inner surface 21y is the inner space 25a, and the area behind the outer surface 21x is the outer space 25b. The outer space 25b is the space where the fan unit 22 is attached.

[0025] The sheet body 21 has a wind diffusion portion 26 at its substantially central part facing the fan unit 22. The wind diffusion portion 26 is an area where the air blown from the fan unit 22 directly hits, and diffuses the wind in all directions. Also, the wind diffusion portion 26 is an area pushed in the direction of the neck muscle 2 by the air blowing surface of the fan unit 22. The wind diffusion portion 26 has an area larger than the air blowing surface of the opposing fan unit 22. The periphery of the wind diffusion portion 26 is provided with a plurality of air holes 27. In the present embodiment, the plurality of air holes 27 are four. The plurality of air holes 27 include an upper air hole 27a and a lower air hole 27b. Also, the plurality of air holes 27 include a right air hole 27c and a left air hole 27d. The upper air hole 27a, the lower air hole 27b, the right air hole 27c, and the left air hole 27d are provided symmetrically with respect to a center line extending vertically through the mounting center of the mounted fan unit 22 as the axis of symmetry.

[0026] As shown in FIGS. 3 and 4, the upper air hole 27a is located above the wind diffusion portion 26. The upper air hole 27a has a horizontal single-character shape and is a linear slit. Also, the upper air hole 27a is wider in the left-right direction than the lower air hole 27b. The upper air hole 27a has a length longer than the maximum dimension in the left-right direction, that is, the maximum outer diameter, of the circular fan unit 22 when the fan unit 22 is mounted. The midpoint in the left-right direction of the upper air hole 27a is located above the mounting center of the mounted fan unit 22. As a result, both ends of the upper air hole 27a are located further outside the left-right ends of the arranged fan unit 22. The upper air hole 27a is pushed by the air blowing surface of the fan unit 22, and the wind diffusion portion 26 bends toward the inner space 25a side, so that a ventilation path is formed through which the upper and lower ends forming the slit are displaced back and forth and the wind passes. Thereby, a part of the diffused wind diffused in the wind diffusion portion 26 is widely blown upward through the upper air hole 27a.

[0027] The lower air hole 27b is located below the air diffusion part 26. The lower air hole 27b is narrower in the left - right direction than the upper air hole 27a. The lower air hole 27b has a shape that is wider in the left - right direction at the lower side than at the upper side. In the present embodiment, the lower air hole 27b has a trapezoidal shape or a shape like an upper chord, and its upper edge is close to the air diffusion part 26. The length of the lower air hole 27b in the left - right direction is formed such that the upper - edge side is shorter than the lower - edge side. The maximum width of the lower air hole 27b in the left - right direction is the same as the maximum dimension in the left - right direction of the circular - shaped fan unit 22, that is, the maximum outer diameter, when the fan unit 22 is attached. The lower air hole 27b is pushed by the blowing surface of the fan unit 22 and bends toward the inner - space 25a side, thereby forming a ventilation path for air to pass through. As a result, a part of the diffused air diffused in the air diffusion part 26 is widely blown out through the lower air hole 27b in the direction of the wearer's upper body.

[0028] The right air hole 27c is located on the right side of the air diffusion part 26. The left air hole 27d is located on the left side of the air diffusion part 26. Each of the right air hole 27c and the left air hole 27d has a right - angled triangle shape. In each of the right air hole 27c and the left air hole 27d, the smallest inner - angle part is located at the lower side, and the opposite - side part with respect to the inner - angle part is located at the upper side. Also, in each of the right air hole 27c and the left air hole 27d, the adjacent - side part is close to the air diffusion part 26, and the hypotenuse part is located farther away from the adjacent - side part. The opposite - side part connected to the upper end of the adjacent - side part is perpendicular to the adjacent - side part. For example, the smallest inner - angle part has the same height as the lower edge of the lower air hole 27b. The opposite - side part located at the upper side is located lower than the position of the upper air hole 27a. Also, the opposite - side part is located below the upper end of the attached fan unit 22. Each of the right air hole 27c and the left air hole 27d is pushed by the blowing surface of the fan unit 22, and the air diffusion part 26 bends toward the inner - space 25a side, thereby forming a ventilation path for air to pass through. As a result, a part of the diffused air diffused in the air diffusion part 26 is widely blown out through the right air hole 27c and the left air hole 27d in the direction around the wearer's neck.

[0029] Between the upper air hole 27a and the right air hole 27c, between the upper air hole 27a and the left air hole 27d, between the lower air hole 27b and the right air hole 27c, and between the lower air hole 27b and the left air hole 27d, there are connecting parts 30 that connect the air diffusion part 26 and the area outside the air holes 27. The connecting parts 30 are pushed by the blowing surface of the fan unit 22 and will bend in the direction of the neck muscles 2. Also, the connecting parts 30 act to bend in the same direction when pushed by the blowing from the blowing surface of the fan unit 22. That is, the seat body 21 has an air diffusion part 26 in the central part, a plurality of air holes 27 around the air diffusion part 26, and a peripheral part 23a outside the air holes 27. The air diffusion part 26 and the peripheral part 23a are connected by the connecting parts 30 between the plurality of air holes 27. And at least the air diffusion part 26 and the connecting parts 30 constitute a flexible seat part that bends when pushed by the blowing surface of the fan unit 22 or pushed by the blowing.

[0030] As shown in FIGS. 4 and 5, in the seat body 21, a color part 28 is arranged at a position along the upper long side 21a. The upper long side 21a is an attachment edge part where the color part 28 is arranged. The color part 28 is fixed along the upper long side 21a by an adhesive, welding, etc. The color part 28 is an elongated rectangular plate and is a long member. The color part 28 may be slightly shorter but has the same length as the upper long side 21a. The color part 28 is a rectangular plate having a higher resilience than the seat body 21 and is, for example, a synthetic resin plate. The color part 28 is arranged between the upper long side 21a and the upper air hole 27a while being along the upper long side 21a. The color part 28 reinforces the seat body 21 and makes it less likely to bend than the seat body 21, making it easier to attach to the flange part 14 of the cap body 11. Note that the color part 28 may be arranged to protrude above the upper long side 21a.

[0031] The color part 28 is provided with mounting holes 29 that penetrate through the color part 28 and the sheet body 21. Six mounting holes 29 are provided, four of which are central mounting holes 29a, and the remaining two are outer mounting holes 29b. The central mounting holes 29a are provided in pairs, two on each side, with the central line extending vertically through the center of the color part 28 in the longitudinal direction as the axis of symmetry. The two central mounting holes 29a located on the inner side among the four central mounting holes 29a are spaced apart from each other, forming a distance variable part 31 described later. Note that the central mounting holes 29a may also be provided in pairs at symmetrically located positions. The outer mounting holes 29b are located outside the central mounting holes 29a located on the outer side. Each outer mounting hole 29b is located near the end of the color part 28. Each of the central mounting holes 29a is a horizontally long slot. The outer mounting hole 29b is a cross-shaped hole formed by overlapping a vertically long hole on a horizontally long slot. Each of the mounting holes 29 is engaged with a mounting member 24.

[0032] A distance variable part 31 for varying the distance between the fan unit 22 and the collar 2 is formed between the pair of central mounting holes 29a located on the inner side. Between the central mounting holes 29a, as the distance variable part 31, a pair of inner folding lines 32 parallel to each other and a pair of outer folding lines 33 are provided. The inner folding lines 32 and the outer folding lines 33 are straight folding lines extending in the vertical direction. Between the inner folding lines 32 is a variable part 34 where the distance from the cap body 11 varies.

[0033] As shown in FIG. 6, when the variable portion 34 is not bent by the inner folding line 32 and the outer folding line 33, it is positioned so as to be close to and along the flange portion 14 (first position). That is, the variable portion 34 is positioned without a gap with respect to the flange portion 14. Then, as shown in FIG. 7, when viewed from the rear surface direction, the distance variable portion 31 makes the outer folding line 33 a valley fold and the inner folding line 32 a mountain fold. As a result, the variable portion 34 moves in a direction away from the flange portion 14 and is positioned at a distance from the flange portion 14 (second position). That is, the color portion 28 can be bent so that both end portions in the longitudinal direction approach each other. As a result, the portion between the outer folding lines 33 is bent into a C shape. And an insertion space 35 inserted vertically is formed in the region between the outer folding lines 33. The insertion space 35 functions as an air volume adjustment hole through which the wind from the fan unit 22 escapes. The fan unit 22 disposed on the seat body 21 is positioned closer to the neck muscle 2 when the variable portion 34 is in the first position, and is farther from the neck muscle 2 than in the first position when in the second position.

[0034] The seat body 21 is attached to the flange portion 14 while engaging the attachment member 24 with each attachment hole 29. When the seat body 21 is attached to the flange portion 14 by the attachment member 24 with the upper long side 21a and the color portion 28 extended, the variable portion 34 is held in the first position. Also, when attached to the flange portion 14 by the attachment member 24 with the inner folding line 32 and the outer folding line 33 bent, the variable portion 34 is held in the second position. Further, by adjusting the degree of bending of the inner folding line 32 and the outer folding line 33, the variable portion 34 can also be positioned at a position between the first position and the second position. For example, when the variable portion 34 is positioned in the second position, it bends according to that position, and the position of the fan unit 22 can be moved away from the neck muscle 2.

[0035] <Description of the fan unit> As shown in FIGS. 2 and 3, the fan unit 22 as a whole has an oblate shape and is formed by butt-joining and coupling a first half 22a and a second half 22b. The first half 22a has a bowl shape, and a fan, a motor for rotating the fan, etc. are arranged therein. The second half 22b is a cover that is butt-joined to the first half 22a by a screw action or the like and has a flat dish shape. The first half 22a serves as the air blowing surface. Here, in the present embodiment, the fan unit 22 is arranged such that the swollen first half 22a faces the inner space 25a and the second half 22b faces the outer space 25b. As an example, the fan unit 22 is driven such that the first half 22a side is the air blowing side and the second half 22b side is the air intake side. The flat dish-shaped second half 22b on the air intake side faces the outer space 25b, so that the unevenness of the outer surface 21x can be suppressed, and as a result, the appearance can be improved. The bowl-shaped first half 22a on the exhaust side is located in the inner space 25a, so that the inner space 25a is effectively utilized. The swollen first half 22a presses the seat body 21, particularly the wind diffusion portion 26, in the direction of the neck 2. Thereby, the openings of the plurality of air holes 27 are greatly widened so that the ventilation path becomes larger.

[0036] The fan unit 22 is connected through a battery such as a secondary battery and a power cord. The battery is stored in the pocket, bag, etc. of the wearer. Also, the battery may be arranged inside the helmet 10.

[0037] The fan unit 22 is attached to the seat body 21 via a support sheet 23 provided with a through hole 36 for attaching the fan unit 22. The fan unit 22 is attached to the support sheet 23 by sandwiching the peripheral edge portion 36a of the through hole 36 between the outer peripheral ends of the first half 22a and the second half 22b that are butted against each other.

[0038] <Description of the support sheet> As shown in FIGS. 2 and 3, the support sheet 23 has a trapezoidal shape with the upper base formed longer than the lower base. The support sheet 23 has the fan unit 22 attached thereto. The support sheet 23 is larger than the fan unit 22 and smaller than the sheet body 21. Further, the support sheet 23 is sized to cover the upper air hole 27a, the lower air hole 27b, the right air hole 27c, and the left air hole 27d. A through hole 36 for attaching the fan unit 22 is provided at the center of the support sheet 23. The through hole 36 is an arrangement hole in which the fan unit 22 is arranged. The through hole 36 is a perfect circle with a diameter slightly smaller than the outer diameter of the fan unit 22. The peripheral edge 36a of the through hole 36 is a region that is sandwiched between the outer peripheral ends of the first half body 22a and the second half body 22b when the fan unit 22 is attached.

[0039] The positions along each side of the support sheet 23 are attachment portions 37 for attaching to the sheet body 21. That is, the attachment portions 37 are configured to surround the upper air hole 27a, the lower air hole 27b, the right air hole 27c, and the left air hole 27d. Each attachment portion 37 is joined to the sheet body 21 by an adhesive, welding, or the like. Note that the opposing position of the sheet body 21 facing the attachment portion 37 is the portion to be attached 38.

[0040] The support sheet 23 configured as described above joins and integrates the attachment portion 37 and the portion to be attached 38. Note that the joining locations (attachment portion 37 and portion to be attached 38) of the support sheet 23 to the sheet body 21 may be continuous without a gap or may have a gap.

[0041] The sheet body, which is the sheet main body 21 to which the support sheet 23 is joined, has the fan unit 22 attached to the support sheet 23. The fan unit 22 is attached by sandwiching the peripheral edge 36a of the through hole 36 between the outer peripheral end of the first half body 22a and the outer peripheral end of the second half body 22b to join the first half body 22a and the second half body 22b. Also, the fan unit is attached with the first half body 22a on the air-sending side facing the inner surface 21y side and the second half body 22b facing the outer surface 21x side. After that, the sheet body with the fan unit 22 attached is attached to the flange portion 14 of the cap body 11 by the attachment member 24.

[0042] Such a support sheet 23 can support the fan unit 22 and prevent the air sent out from the fan unit 22 from being blown back to the side opposite to the air-sending direction. Therefore, the air sent from the fan unit 22 can be sent out into the inner space 25a from the plurality of air holes 27 without waste.

[0043] <Explanation of the attachment member> As shown in FIG. 8, the attachment member 24 is a clip for detachably attaching the sheet main body 21 to the flange portion 14 of the cap body 11. The attachment member 24 includes a first member 41 inserted through the attachment hole 29 of the sheet main body 21 and a second member 42 for jointly attaching the first member 41 to the flange portion 14.

[0044] The first member 41 has a U shape, and one end portion 41a has the second member 42 rotatably attached thereto. The other end is the insertion end into the attachment hole 29. The second member 42 is rotated and press-fitted in a direction to close the opening between one end and the other end. The second member 42 includes a rotation fulcrum portion 42a with respect to the one end portion 41a of the first member 41. Also, the second member 42 includes a press-contact portion 42b that is press-contacted with the surface of the cap body 11 near the flange portion 14.

[0045] The attachment member 24 attaches the seat body 21 as follows. Specifically, the first member 41 is hooked on the attachment hole 29 of the seat body 21. Next, the second member 42 is arranged such that the pressure contact portion 42b is on the surface of the cap body 11 near the flange portion 14. The wearer can adjust the position of the variable portion 34 between the first position and the second position. Then, when the position of the seat body 21 relative to the flange portion 14 is determined, the first member 41 is rotated so that the lower end of the cap body 11 is inserted between one end portion 41a and the other end portion. That is, the flange portion 14 is inserted between the one end portion 41a and the other end portion. The one end portion 41a is located inside the cap body 11. Thereby, the attachment member 24 is in a locked state.

[0046] By the way, the attachment member 24 is in an unlocked state until the first member 41 is rotated and the pressure contact portion 42b is pressure contacted, and is movable along the flange portion 14. Thereby, the wearer can adjust the position of the variable portion 34 between the first position and the second position.

[0047] The seat body 21 can be easily removed from the flange portion 14. In this case, the attachment member 24 is unlocked by rotating the first member 41 in the opposite direction. Then, the attachment member 24 can be removed from the flange portion 14. Also, when the attachment member 24 is in an unlocked state, the position of the variable portion 34 can be varied by moving the collar portion 28.

[0048] <Explanation of the operation - usage method of the present embodiment-> The operation of the present embodiment will be described. When the seat body 21 is attached to the flange portion 14 of the helmet 10, the helmet 10 is worn on the head. Then, the seat body 21 covers the wearer's neck muscles 2. Therefore, the seat body 21 functions as a sunshade and a windbreaker. Further, the fan unit 22 is also positioned to face the neck muscles 2. The wind diffusion portion 26 of the support seat 23 is pushed by the swollen first half body 22a of the fan unit 22, and the air blowing surface approaches the neck muscles 2. Then, in the plurality of air holes 27, the ventilation paths of the respective air holes 27 are enlarged as the positions of the wind diffusion portion 26 and the connecting portion 30 are bent in the front - rear direction.

[0049] When the motor is driven, the fan unit 22 sucks air from the outside and blows it against the air diffusion part 26. Then, as shown in FIGS. 3 and 9, the air diffusion part 26 diffuses the air in all directions.

[0050] The upward wind W1 blows out from the upper wind hole 27a and blows into the gap between the inside of the helmet 10 and the head. Then, the blown wind W1 flows from the rear surface to the front surface of the helmet 10. The downward wind W2 blows out from the lower wind hole 27b and flows in the direction of the upper body of the wearer. Since the downward flowing wind W2 flows inside the seat body 21, it can be suppressed from diffusing outward. The rightward wind W3 blows out from the right wind hole 27c and flows around the wearer's neck. The leftward wind W4 blows out from the left wind hole 27d and flows around the wearer's neck.

[0051] By the way, there may be a case where the position of the fan unit 22 with respect to the neck muscle 2 is not optimal by the wearer. For example, depending on the build of the wearer, etc., when the variable part 34 is in the first position, the fan unit 22 may hit the neck muscle 2 too much, and the wearing comfort may deteriorate. In such a case, the pressing state in which the pressing part 42b of the attachment member 24 presses the outer surface of the cap body 11 is loosened by rotating the first member 41 to an unlocked state. As a result, the collar part 28 can move the both longitudinal ends closer to each other and bend at the parts of the inner fold line 32 and the outer fold line 33.

[0052] When the variable portion 34 is in an extended state not bent by the inner folding line 32 and the outer folding line 33, it is positioned so as to be close to and along the flange portion 14 (first position). Accordingly, the fan unit 22 relatively approaches the neck muscle 2. Also, when viewed from the rear surface direction, the variable portion 34 is separated from the flange portion 14 by making the outer folding line 33 a valley fold and the inner folding line 32 a mountain fold (second position). As a result, the vicinity of the variable portion 34 of the seat body 21 moves away from the neck muscle 2, and accordingly, the fan unit 22 also relatively moves away from the neck muscle 2. Thereby, the position of the fan unit 22 attached to the seat body 21 can also be adjusted. When the variable portion 34 is in the second position, an insertion space 35 is provided. A part of the air diffused by the air diffusion portion 26 flows out from the insertion space 35, thereby adjusting the air volume. The insertion space 35 also functions as one of the air holes. When the fan unit 22 is operated in the rear surface direction, by moving the fan unit 22 away from the neck muscle 2, it becomes difficult to hit the neck muscle 2. As a result, the wearing comfort of the helmet is improved.

[0053] When the fan unit 22 is not attached, another sheet without the through hole 36 of the support sheet 23 can be attached so as to block the air hole 27. Thereby, even when the fan unit 22 is not attached, the seat body 21 can hide the air hole 27 and suppress the deterioration of the appearance. Also, a decrease in the function as a sunshade or a windbreaker can be suppressed. Note that the seat body 21 may be attached to the flange portion 14 without attaching the support sheet 23. In this case, the through hole 36 functions as a ventilation port.

[0054] In addition, other accessories may be attached to the support sheet 23 other than the fan unit 22. For example, accessories such as heaters, Peltier elements, and hand warmers may be attached to the support sheet 23. In such a case, the support sheet 23 has the accessory detachably or fixedly attached according to the type of the accessory. And such a support sheet 23 is exchanged with the support sheet 23 to which the fan unit 22 is attached and then attached to the seat body 21. For example, the heating device attached to the support sheet 23 is radiated in the direction of the neck muscle 2 through the air hole 27.

[0055] <Effects of the First Embodiment> The effects of the first embodiment will be described. (1-1) The flexible sheet portions (the wind diffusion portion 26 and the connecting portion 30) bent in the direction of the neck muscle 2 diffuse the wind from the fan unit 22 and form a ventilation path, so that the wind can be sent out in a plurality of directions including the direction of the cap body 11. Thereby, the wearing feeling of the helmet 10 can be improved.

[0056] (1-2) The wind from the fan unit 22 blows the wind upward into the cap body 11, and the wind from the downward direction is sent out in the direction of the upper body of the wearer. The wind W1 directed upward from the upper air hole 27a is sent out into the helmet 10. The wind W2 directed downward from the lower air hole 27b is sent out in the direction of the upper body of the wearer. In this way, the accessory attachment device 20 can blow the wind not only upward but also downward and in the left and right directions, so that the wearing feeling of the helmet 10 can be improved. And since the upper air hole 27a is configured to have a longer length in the left and right directions than the lower air hole 27b, more wind can be sent into the helmet 10 depending on the direction of the helmet 10.

[0057] (1-3) The wind from the fan unit 22 blows upward into the cap body 11, and the wind blowing in the left and right directions is sent out into the helmet 10 and around the wearer's neck. The wind W3 blowing rightward from the right air hole 27c is sent out from the right side around the wearer's neck. The wind W4 blowing leftward from the left air hole 27d is sent out from the left side around the wearer's neck. In this way, the accessory mounting device 20 can blow the wind not only upward but also downward and in the left and right directions, so that the wearing feeling of the helmet 10 can be improved. And since the right air hole 27c and the left air hole 27d are configured to be arranged symmetrically, the same amount of wind can be sent into the left and right directions around the neck.

[0058] (1-4) The fan unit 22 can be attached to the seat body 21 through the support sheet 23. (1-5) The seat body 21 can send out the wind diffused by the wind diffusion part 26 in a plurality of directions through a ventilation path configured by using a plurality of air holes 27.

[0059] (1-6) The seat body 21 and the support sheet 23 are made of a fabric in which a cloth is sandwiched between soft synthetic resins. Therefore, the seat body 21 and the support sheet 23 can suppress the occurrence of unraveling at the cut ends and the like while having flexibility. Since the cut ends of the seat body 21 and the support sheet 23 are not easily unraveled, they can be easily formed by punching.

[0060] <Second Embodiment> As shown in FIGS. 10 and 11, an annular support ring portion 46 having a resilience higher than that of the support sheet 23 may be arranged at the peripheral portion 36a of the through-hole 36. The first half 22a and the second half 22b constituting the fan unit 22 are butt-joined in a state where the peripheral portion 36a of the through-hole 36 is sandwiched together with the support ring portion 46. Here, the support ring portion 46 is a reinforcing plate and an annular plate body. The support ring portion 46 is, for example, a synthetic resin plate having a resilience higher than that of the sheet body 21. For example, the support ring portion 46 is provided by punching out the same plate material as the color portion 28. The support ring portion 46 is arranged at the peripheral portion 36a of the through-hole 36 in the support sheet 23. The surface of the support sheet 23 where the support ring portion 46 is arranged is preferably provided on the inner surface, which is the surface facing the sheet body 21 rather than the outer surface. In this way, the support ring portion 46 can be hidden.

[0061] Next, the effects of the second embodiment will be described. (2-1) Since the support ring portion 46 has a resilience higher than that of the support sheet 23, the fan unit 22 can be stably attached to the support sheet 23. Further, it is possible to prevent the peripheral portion 36a from being sandwiched in a wrinkled state at the butting joint portion between the first half 22a and the second half 22b of the fan unit 22.

[0062] <Third Embodiment> As shown in FIGS. 12 and 13, in the third embodiment, the color portion 28 and the support ring portion 46 of the second embodiment are formed as a single component to form a support member 47. That is, the support member 47 is a support member 47 including the support ring portion 46 and a connecting piece 48. The support ring portion 46 is the same as the support ring portion 46 of the second embodiment. The connecting piece 48 is a linear piece extending outward from the support ring portion 46. The support member 47 is provided by punching out the same plate material as the color portion 28.

[0063] The tip of the connecting piece 48 is attached to the variable part 34 of the color part 28 by an attachment pin 49 as an attachment member such as a pin. In the present embodiment, the connecting piece 48 is attached to the variable part 34 so as to be rotatable in the left - right direction through the vicinity region of the upper long side 21a by the attachment pin 49. The connecting piece 48 can be finely adjusted in position by rotating around the attachment pin 49. Note that the attachment pin 49 may be fixed so that the connecting piece 48 does not rotate with respect to the variable part 34.

[0064] Next, the effects of the third embodiment will be described. (3 - 1) The support member 47 is connected by the color part 28 and the connecting piece 48. Thereby, the posture of the heavy fan unit 22 can be made more stable than when it is supported only by the flexible support sheet 23.

[0065] (3 - 2) The color part 28 and the support ring part 46 integrated with the fan unit 22 are connected via the connecting piece 48 and are integrated. The support member 47 is made of a plate material with a higher resilience than the support sheet 23, similar to the color part 28. Therefore, even when the variable part 34 in the color part 28 moves to the second position, the fan unit 22 can be separated from the neck muscle 2 accordingly. That is, when the support ring part 46 and the variable part 34 are not connected through the connecting piece 48, the fan unit 22 can be separated from the neck muscle 2 by moving the variable part 34 to the second position. However, due to the weight of the fan unit 22, the seat body 21 and the support sheet 23 bend in the direction of the neck muscle 2, and the amount of separation from the neck muscle 2 tends to be small.

[0066] In this regard, the fan unit 22 is connected to the collar portion 28 by a support member 47 having a higher resilience than the seat body 21 and the support seat 23. Therefore, the weight of the fan unit 22 can make it difficult for the fan unit 22 to approach in the direction of the neck muscle 2. In the third embodiment, in the second position, the repulsive force of the connecting piece 48 can be utilized to move the fan unit 22 further away from the neck muscle 2 than in the case where the fan unit 22 and the variable portion 34 which is a part of the collar portion 28 are not connected by the connecting piece 48 as in the first embodiment and the second embodiment.

[0067] <Fourth Embodiment> The fourth embodiment is a modification of the support member 47 in the third embodiment, and within the support ring portion, the fan unit 22 can move between an upper position and a lower position. As shown in FIGS. 14 and 15, the support member 51 includes a support ring portion 52 and a connecting piece 53. The support ring portion 52 has an elongated hole shape with the vertical direction as the major axis. And in the middle of the vertical direction, it is provided with a constricted portion 54. And the support ring portion 52 is configured with an upper support portion 52a on the upper side and a lower support portion 52b on the lower side with the constricted portion 54 as a boundary.

[0068] In this case, the shape of the through hole 36 of the support seat 23 is an elongated hole shape corresponding to the support ring portion 52. In the present embodiment, the through hole 36 does not provide a portion corresponding to the constricted portion 54 of the support ring portion 52, but such a portion may be provided.

[0069] When positioning the fan unit 22 at the upper position held by the upper support portion 52a as shown in FIG. 14, the upper support portion 52a is sandwiched between the first half body 22a and the second half body 22b constituting the fan unit 22. The region sandwiched between the first half body 22a and the second half body 22b is the circular portion of the upper support portion 52a and the constricted portion located below the upper support portion 52a.

[0070] As shown in Fig. 15, when the fan unit 22 is positioned at the lower position held by the lower support portion 52b, the lower support portion 52b is sandwiched between the first half body 22a and the second half body 22b that constitute the fan unit 22. The region sandwiched between the first half body 22a and the second half body 22b is the circular portion of the lower support portion 52b and the constricted portion located above the lower support portion 52b.

[0071] Note that the support ring portion 52 may be provided with, for example, two constricted portions 54 in the vertical direction instead of one. In this case, three support portions, namely an upper support portion, a middle support portion, and a lower support portion, will be provided to support the fan unit 22. Thus, by increasing the number of constricted portions 54 provided in the support ring portion 52 in the vertical direction, the number of support portions for supporting the fan unit 22 can be increased.

[0072] Next, the effects of the fourth embodiment will be described. (4-1) The position of the fan unit 22 can be adjusted at two positions, an upper position and a lower position. Thereby, according to the size of the wearer's head circumference, preferences, etc., the vertical position of the fan unit 22 can be adjusted at two positions, and the wearing comfort can be improved.

[0073] (4-2) At the upper position, since the fan unit 22 is also supported by the constricted portion below the upper support portion 52a, it is less likely to shift in the direction of the lower support portion 52b due to the weight of the fan unit 22. Also, at the lower position, since the fan unit 22 is also supported by the constricted portion above the lower support portion 52b, it is less likely to shift in the direction of the upper support portion 52a.

[0074] <Fifth Embodiment> The fifth embodiment is a modification of the support ring portion in the fourth embodiment and does not include the constricted portion 54. That is, the support ring portion 56 has an elongated hole shape with the vertical direction of the support ring portion 52 as the major axis. The support ring portion 56 is provided with arc portions above and below, and the side edges extending vertically are composed of straight lines.

[0075] In this case, the shape of the through hole 36 in the support sheet 23 is an elongated hole shape corresponding to the support ring portion 56. In the present embodiment, the through hole 36 does not have a portion corresponding to the constricted portion 54 of the support ring portion 52.

[0076] As shown in FIG. 16, the fan unit 22 sandwiches the support ring portion 56 between the first half body 22a and the second half body 22b that constitute the fan unit 22. The region sandwiched between the first half body 22a and the second half body 22b forms upper and lower circular portions and left and right linear portions when at the upper limit position or the lower limit position. Also, at an intermediate position between the upper limit position and the lower limit position, only the left and right linear portions are formed.

[0077] Next, the effects of the fifth embodiment will be described. (5-1) Since such a support ring portion 56 does not have a constricted portion, in the vertical direction, it is not limited to two positions, an upper position and a lower position, and the position of the fan unit 22, such as an intermediate position, can be freely adjusted.

[0078] <Modification example> Note that the first to fifth embodiments can be implemented with the following modifications. The first to fifth embodiments and the following modification examples can be implemented in combination with each other within a technically non-conflicting range.

[0079] · In the sheet body 21, the color portion 28 may be omitted. When the color portion 28 is omitted, the attachment member 24 may be hooked and attached to the attachment hole 29 provided in the region along the upper long side 21a of the sheet body 21.

[0080] · The seat body 21 and / or the support sheet 23 are not limited to a fabric in which a woven fabric is sandwiched between soft synthetic resins. The seat body 21 may be an ordinary cotton woven fabric, a silk woven fabric, or the like. Further, the seat body 21 may be a mesh sheet. Furthermore, it may be a resin sheet. The seat body 21 and / or the support sheet 23 may be more flexible or less flexible than the fabrics used in the first to fifth embodiments. Also, the seat body 21 and / or the support sheet 23 may or may not have air permeability compared to the fabrics used in the first to fifth embodiments.

[0081] · The attachment of the support sheet 23 to the seat body 21 may be made detachable in addition to welding or adhesion. As a detachable configuration of the support sheet 23 to the seat body 21, a hook-and-loop fastener may be used. In this case, a male hook-and-loop fastener may be arranged on one of the opposing surfaces of the opposing support sheet 23 and the seat body 21, and a female hook-and-loop fastener may be arranged on the other. Also, a male snap button may be provided on either the seat body 21 or the support sheet 23, and a female snap button may be provided on the other, and they may be engaged and attached. Further, a configuration may be adopted in which a part such as one side of the support sheet 23 is sewn to the seat body 21, and the remaining parts such as the other sides are attached with a hook-and-loop fastener, a snap button, or the like.

[0082] In the fourth and fifth embodiments, within the support ring portion, the fan unit 22 can move between an upper position and a lower position. For example, if the support sheet 23 is detachable from the sheet body 21, the through hole 36 of the support sheet 23 may be a perfect circle having a diameter slightly smaller than the outer diameter of the fan unit 22. Then, in the fourth embodiment, the vertical position of the support sheet 23 may be adjusted to attach the fan unit 22 to any position of the lower support portion 52b of the support ring portion 52 and the lower support portion 52b. Further, in the fifth embodiment, the vertical position of the support sheet 23 may be adjusted to attach it to any position of the through hole 36 having a long hole shape of the support ring portion 56. Furthermore, in the first and second embodiments, simply making the support sheet 23 detachable from the sheet body 21 and enabling the support sheet 23 to be shifted vertically to adjust the vertical position may be sufficient.

[0083] · The attachment member 24 is not limited to a clip. For example, a male snap button may be provided on either the helmet 10 or the sheet body 21, and a female snap button may be provided on the other, and they may be engaged and attached. Also, a male hook-and-loop fastener may be provided on either the helmet 10 or the sheet body 21, and a female hook-and-loop fastener may be provided on the other, and they may be engaged and attached. Further, a hook-shaped hook may be provided on either the helmet 10 or the sheet body 21, and an engagement hole to which the hook can be hooked may be provided on the other.

[0084] · The helmet 10 may not include the flange portion 14. In this case, the sheet body 21 will be attached via the attachment member 24 to the edge along the open end 11a. · Regardless of whether the cap body 11 includes the flange portion 14, for example, the sheet body 21 may be configured to be attached to the legs of a hammock disposed on the inner surface of the cap body 11. That is, the position where the sheet body 21 is attached to the helmet 10 is not particularly limited.

[0085] ·In the flange portion 14 of the cap body 11, the region where the sheet body 21 is attached may be not only the entire region from both side surfaces to the back surface, but also provided only on the side surface or only on the back surface according to the usage environment.

[0086] ·The fan unit 22 is not limited to a configuration that can be divided into a first half body 22a and a second half body 22b. The fan unit 22 may not be divided into the first half body 22a and the second half body 22b. In the case of a fan unit having such a configuration, the fan unit 22 may be attached by engaging it with an engaging member such as a hook-shaped hook provided on the support sheet 23.

[0087] ·As a whole, the fan unit 22 may have a substantially rectangular parallelepiped shape. In this case, the through hole 36 to which the fan unit 22 is attached also has a rectangular shape that matches the shape of the fan unit 22.

[0088] ·The fan unit 22 may be integrated with the support sheet 23 by adhesion, welding, etc. In this case, the fan unit 22 is not replaceable with respect to the support sheet 23. When the fan unit 22 fails, etc., the entire support sheet 23 will be replaced.

[0089] ·The arrangement of the upper air hole 27a, the lower air hole 27b, the right air hole 27c, and the left air hole 27d does not have to be a line-symmetric arrangement. ·The air hole 27 only needs to include the upper air hole 27a and at least one other air hole. That is, the air hole 27 may have a configuration including only the upper air hole 27a and the lower air hole 27b, or a configuration including only the upper air hole 27a, the right air hole 27c, and the left air hole 27d. Also, the air hole 27 may have a configuration including the upper air hole 27a and any one of the right air hole 27c and the left air hole 27d. Furthermore, the air hole 27 may be the upper air hole 27a and an air hole provided at a position other than the lower air hole 27b, the right air hole 27c, and the left air hole 27d.

[0090] ·The shape of the upper air hole 27a is not limited to a linear slit extending in the left-right direction. For example, the upper air hole 27a may have a wavy shape, or may be a long hole with the left-right direction as its major axis, or may be composed of small holes such as circular holes and triangular holes arranged in the left-right direction.

[0091] ·The shape of the lower air hole 27b is not limited to a shape that is wider in the left-right direction on the lower side than on the upper side. For example, the shape of the lower air hole 27b may be wider in the left-right direction on the upper side than on the lower side. Also, the lower air hole 27b may be a linear slit extending in the left-right direction, or may be a long hole with the left-right direction or the up-down direction as its major axis. Also, the lower air hole 27b may be composed of one or more rows of small holes such as circular holes and triangular holes arranged in the left-right direction. Furthermore, the lower air hole 27b may be composed of a plurality of small holes arranged in a matrix.

[0092] ·The right air hole 27c and the left air hole 27d are not limited to a right-angled triangle shape. For example, the right air hole 27c and the left air hole 27d may be isosceles triangle holes, or may be triangle holes with different lengths for all sides. Also, the right air hole 27c and the left air hole 27d may be holes with a polygonal shape such as a quadrilateral, pentagon, hexagon, etc., or may be holes with a circular shape, semi-circular shape, etc. Furthermore, the right air hole 27c and the left air hole 27d may be configured such that slits arranged in the up-down direction or the left-right direction are arranged. Furthermore, the right air hole 27c and the left air hole 27d may be composed of one or more rows of small holes arranged in the left-right direction. The right air hole 27c and the left air hole 27d may have different shapes and sizes.

[0093] ·In the seat body 21, a plurality of air holes 27 may be omitted. In this case, the entire seat body 21 becomes the air diffusion part 26. In such a case, the support seat 23 that supports the fan unit 22 is joined to the mounted part 38 of the seat body 21 using the mounting parts 37 in the left - right direction. And the upper and lower parts of the support seat 23 are in an open state. According to such a configuration, when the fan unit 22 is driven, the diffused air uses the upper and lower ends of the support seat 23 as air holes, becoming a ventilation path that blows out in the up - down direction. Also, by simply joining each corner part of the support seat 23 to the seat body 21, ventilation can be configured in all directions (up, down, left, and right). Further, in the support seat 23, the mounting parts 37 along each side may be joined to the mounted part 38 intermittently. In such a case, the positions where they are not joined become air holes. At least, the support seat 23 should be joined to the seat body 21 so that the ventilation path is configured not only upward but also downward or in the left - right direction.

[0094] ·As shown in FIG. 17, the accessory mounting device may be composed of a seat body 61 to which the fan unit 22 is mounted and a flexible seat part 62 that is mounted to the seat body 61. In this case, the flexible seat part 62 is located on the side closer to the collar 2 of the seat body 61.

[0095] The seat body 61 has the fan unit 22 disposed therein and is mounted to the flange part 14 of the cap body 11. The seat body 61 is a rectangular seat material provided with the same material as the seat body 21 described in the first embodiment etc. A circular through - hole is provided in this seat body 61, and the fan unit 22 is disposed with respect to the through - hole. The fan unit 22 includes a first half body 22a and a second half body 22b, and is mounted to the seat body 61 such that the bulged first half body 22a on the air - blowing surface side is located on the side of the flexible seat part 62.

[0096] The sheet body 61 has a color portion 28 disposed at a mounting edge portion formed along the upper long side. The color portion 28 is fixed along the upper long side of the sheet body 61 by an adhesive, welding, or the like. A support member 47 is attached to the color portion 28. As described in the second and third embodiments, the support member 47 includes a support ring portion 46 and a connecting piece 48. The support member 47 is provided by punching out the same plate material as the color portion 28. The support ring portion 46 is disposed at the peripheral edge of the through hole. The first half body 22a and the second half body 22b constituting the fan unit 22 are butt-joined in a state where the peripheral edge of the through hole is sandwiched together with the support ring portion 46.

[0097] The tip of the connecting piece 48 is fixed at the central position in the long side direction of the color portion 28. The support member 47 is connected by the color portion 28 and the connecting piece 48. Thereby, the posture of the fan unit 22, which is a heavy object, can be made more stable than when it is supported only by the flexible support sheet 23. In this modification, the support member 47 may be omitted. Also, the color portion 28 can be omitted.

[0098] The flexible sheet portion 62 is located on the side of the collar 2 closer to the flexible sheet portion 62. The flexible sheet portion 62 is a sheet material facing the blowing surface, which is the first half body 22a of the fan unit 22. The flexible sheet portion 62 is composed of a flexible sheet material having a size capable of covering the blowing surface of the fan unit 22, for example, the same material as the sheet body 61. The flexible sheet portion 62 is a rectangular sheet smaller than the sheet body 61. The flexible sheet portion 62 is a wind diffusion portion.

[0099] The flexible sheet portion 62 is attached to the inner surface which is the side of the collar line of the sheet body 61. The flexible sheet portion 62 has side edge portions on both the left and right sides extending in the vertical direction as attachment portions and is attached to the inner surface 61a of the sheet body 61. The flexible sheet portion 62 may be fixedly attached to the inner surface 61a of the sheet body 61 in a non-detachable manner or may be detachable. In the case of non-detachable, both side edge portions of the flexible sheet portion 62 are joined to the inner surface of the sheet body 61 by an adhesive, welding, or the like. In the case of detachable, both side edge portions of the flexible sheet portion 62 are attached to the inner surface 61a of the sheet body 61 by a hook-and-loop fastener, a snap button, or the like. In the example of FIG. 17, it is attached by a snap button 63. The upper edge portion and the lower edge portion of the flexible sheet portion 62 extending in the left-right direction are not fixed to the inner surface of the sheet body 61 and are free ends. A ventilation passage is formed between the upper edge portion and the lower edge portion of the flexible sheet portion 62 and the inner surface 61a of the sheet body 61.

[0100] The flexible sheet portion 62 is pushed by the inflated first half body 22a of the fan unit 22, and the air blowing surface approaches the collar line 2. And a ventilation passage is formed between the upper edge portion and the lower edge portion of the flexible sheet portion 62 and the inner surface 61a of the sheet body 61. When air blows out from the air blowing surface of the fan unit 22, the flexible sheet portion 62 further bends in the direction of the collar line 2, and the ventilation passage expands.

[0101] Note that the ventilation passage can also be configured to have a ventilation passage for sending air in the left-right direction to the non-joined portion by providing a non-joined portion in a part of both side edge portions of the flexible sheet portion 62. Also, the upper edge portion and the lower edge portion of the flexible sheet portion 62 may be intermittently joined.

[0102] According to the accessory attachment device configured as described above, the flexible sheet portion 62 bent in the direction of the collar line 2 diffuses the air from the fan unit 22 and forms a ventilation passage, so that the air w1 can be sent in the direction of the cap body 11 (upward). At the same time, the air w2 can be sent downward. Thereby, the wearing comfort of the helmet 10 can be improved.

[0103] ·In the support sheet 23, the entire sheet does not have to have the same flexibility. For example, the wind diffusion part 26 and the connecting part 30 may be formed of a sheet that is more flexible than the peripheral part 36a.

[0104] ·In the distance variable part 31, the pair of inner folding lines 32 and the pair of outer folding lines 33 may be omitted. This is because the color part 28 can bend the sheet body 21 in the rear direction as long as it can bend. Also, the position where the color part 28 is bent may be a position biased in any direction of the left and right side surfaces as well as the rear direction.

[0105] ·In addition to the fan unit 22, a small element such as a Peltier element may be attached to the support sheet 23. That is, a plurality of accessories may be attached to one support sheet 23.

Explanation of reference numerals

[0106] 2…Neck muscle 10…Helmet 11…Cap body 11a…Open end 14…Flange part 20…Accessory mounting device 21…Sheet body 22…Fan unit 22a…First half body 22b…Second half body 23…Support sheet 24…Mounting member 25a…Inner space 25b…Outer space 26…Wind diffusion part 27a…Upper air hole 27b…Lower air hole 27c…Right air hole 27d…Left air hole 28…Color part 29a…Central mounting hole 29b…Outer mounting hole 30…Connecting part 31…Distance variable part 32…Inner folding line 33…Outer folding line 34…Variable part 35... Insertion space 36... Through hole 36a... Peripheral part 37... Mounting part 38... Part to be mounted 41... First member 42... Second member 42a... Crimping part 46... Support ring part

Claims

1. In a fan mounting device for attaching a fan unit to a helmet, a sheet body on which the fan unit is disposed and which is attached to the helmet, a flexible sheet portion located between the nape and the air blowing surface of the fan unit, the flexible sheet portion constituting a ventilation path through which the diffused air in a state of being bent in the direction of the nape passes, a fan mounting device.

2. The flexible sheet portion constitutes the ventilation path for sending air in the vertical direction in a state of being bent in the direction of the nape. The fan mounting device according to Claim 1.

3. The flexible sheet portion constitutes the ventilation path for sending air in the upward and left - right directions in a state of being bent in the direction of the nape. The fan mounting device according to Claim 1.

4. The sheet body includes a support sheet to which the fan unit is attached, and a sheet main body to which the support sheet is attached and which is attached to the helmet, wherein the sheet main body includes the flexible sheet portion. The fan mounting device according to Claim 1.

5. The sheet main body includes a wind diffusion portion directly hit by the air blown from the fan unit, and a plurality of air holes constituting the ventilation path for sending the air diffused by the wind diffusion portion to the inner space on the wearer side. The fan mounting device according to Claim 4.

6. The wind diffusion portion and the plurality of air holes are formed by punching the sheet main body. The fan mounting device according to Claim 5.

7. The plurality of air holes include upper air holes for sending air upward and lower air holes for sending air downward, wherein the upper air holes are longer in the left - right direction than the lower air holes. The fan mounting device according to Claim 5.

8. The plurality of air holes include upper air holes for sending air upward, right air holes for sending air to the right, and left air holes for sending air to the left. The right air holes and the left air holes are arranged symmetrically with respect to a line. The fan mounting device according to Claim 5.

9. A helmet, and a fan mounting device for attaching a fan unit to the helmet, wherein the fan mounting device includes a sheet body on which the fan unit is disposed and which is attached to the helmet, and a flexible sheet portion located between the nape and the air blowing surface of the fan unit, the flexible sheet portion constituting a ventilation path through which the diffused air in a state of being bent in the direction of the nape passes. A helmet device.

Images