Helmet

Abstract

A helmet is provided with: a cap body having a view opening in the front; a shield attached to the cap body so as to be able to open and close the view opening; and an outside air inflow mechanism configured so as to blow air to the inner surface of the shroud in a closed state in which the view opening is closed. The external air inflow mechanism is provided with a housing part and a mesh member removably housed in the housing part, and the housing part is configured inside the cap body. The housing part is provided with: an outer wall member provided with an outside air inlet connecting the inside and outside; an inner wall member disposed so as to face the outer wall member; an attachment / detachment port; the dismounting device is used for dismounting net-shaped components; and an air supply port for blowing air sucked in from the outside air inlet to the inner surface of the shroud in the closed state. The mesh member is provided with a mesh portion facing the outside air inlet in a housed state housed in the housing portion.

Description

Technical Field

[0001] The present invention relates to helmets. Background Art

[0002] Some motorcycle helmets include an air inlet, a defroster, and other external air inlet mechanisms, and the external air inlet mechanism is configured to introduce external air into the interior of the helmet using wind pressure. A helmet with an external air inlet mechanism can improve the wearing feeling by improving the ventilation inside the helmet. For example, the helmet described in Patent Document 1 includes a front air inlet. The front air inlet includes a first frame and a second frame, and a grille and a filter between the first frame and the second frame. Prior art literature Patent Literature

[0003] Patent Document 1: European Patent No. 2319339 Summary of the invention Problems to be solved by the invention

[0004] The external air inflow mechanism has a structure that uses the wind pressure applied to the moving motorcycle to introduce external air into the helmet from the external air inlet. Therefore, foreign matter such as dust and small insects may enter the helmet from the external air inlet together with the external air. When foreign matter enters the helmet, the wearing feeling may be reduced. Solutions to Solve Problems

[0005] The helmet for solving the above-mentioned problems comprises: a cap body having an opening for a field of view at the front; a shield mounted on the cap body in a manner that the opening for a field of view can be opened and closed; and an external air inflow mechanism, which is configured to blow air toward the inner surface of the shield in a closed state that closes the opening for a field of view, the external air inflow mechanism comprising a storage portion and a mesh member that can be detachably stored in the storage portion, the storage portion being configured inside the cap body, the storage portion comprising: an outer wall member having an external air inflow port connecting the inside and the outside; an inner wall member arranged opposite to the outer wall member; a disassembly port for disassembling the mesh member; and an air supply port for blowing air sucked from the external air inflow port toward the inner surface of the shield in the closed state, the mesh member comprising a mesh portion, and the mesh portion is opposite to the external air inflow port when the mesh member is stored in the storage portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a perspective view of a helmet in one embodiment. Figure 2 yes Figure 1 A perspective view of the main parts of the peripheral portion of the external air inflow mechanism of the helmet. Figure 3 yes Figure 1 An exploded perspective view of an external air inflow mechanism of a helmet. Figure 4 It constitutes storage Figure 1 A three-dimensional view of the outer wall member and the inner wall member of the storage portion of the mesh member of the helmet. Figure 5 It is storage Figure 1 A sectional perspective view of a storage portion of a mesh member of a helmet. Figure 6 It is viewed from the front Figure 1 A three-dimensional view of a mesh member of a helmet. Figure 7 Viewed from the rear Figure 1 A three-dimensional view of a mesh member of a helmet. Figure 8 It is shown in Figure 1 A cross-sectional perspective view of a state in which a mesh member is stored in a storage portion of a helmet. Fig. 9 It is shown Figure 1 A sectional stereoscopic view of the state of the crimping portion of the helmet. Fig.10 It is shown Figure 1 A three-dimensional view of a helmet in which an external air inlet is closed by a gate. Fig.11 It shows that the gate is open Figure 1 A three-dimensional diagram of the state of the external air inlet of the helmet. DETAILED DESCRIPTION

[0007] Hereinafter, one embodiment of the helmet of the present invention will be described with reference to the drawings. In addition, in the present embodiment, front, back, left, right, up, and down, which are directions viewed from a helmet wearer, are expressed as front, back, left, right, up, and down relative to the helmet.

[0008] [Overall structure of the helmet] The helmet 1 includes a cap body 10 and an inner liner as a shock absorber arranged inside the cap body 10. The cap body 10 constitutes the outer shell of the helmet 1. The cap body 10 is a resin member having a hemispherical shape. The material constituting the cap body 10 is selected from, for example, acrylonitrile-butadiene-styrene copolymer (ABS), polycarbonate (PC), and a thermosetting resin impregnated with reinforcing fibers. The inner liner is composed of a shock absorbing member made of a foamed resin (e.g., foamed styrene), an inner pad made of polyurethane, and the like.

[0009] The cap body 10 has a field of view opening 11 and a wearing opening 12. The field of view opening 11 is formed in the front region of the cap body 10. The field of view opening 11 is an opening extending wider in the left-right direction than in the up-down direction in order to ensure the field of view of the wearer. A shield 13 as a light-transmitting plate member is attached to the field of view opening 11.

[0010] The shield 13 is a plate-like member with light transmittance. The shield 13 is bent in a manner following the curved surface shape of the outer surface of the cap body 10, and has a size that can close the field of view opening 11. The left and right ends of the shield 13 are rotatably mounted on the two side areas of the field of view opening 11, so that the shield 13 can open and close the field of view opening 11. The shield 13 moves from the closed state of closing the field of view opening 11 to the upper side of the field of view opening 11 and transfers to the open state of opening the field of view opening 11. The shield 13 prevents foreign objects, rain and wind flying from the front from entering the helmet 1 in the closed state, and improves the visual recognition of the wearer.

[0011] The wearing opening 12 is formed in the lower area of ​​the cap body 10. The wearing opening 12 is an opening for allowing the wearer's head to enter. A pair of left and right chin straps are installed in the wearing opening 12. The base ends of the left and right chin straps are fixed to the cap body 10. A buckle is installed at the free end of one chin strap. A ratchet is installed at the free end of the other chin strap. The pair of left and right chin straps are connected by the ratchet and the buckle to form a connected chin strap.

[0012] In order to introduce external air into the interior of the helmet 1 to improve the wearing feeling, the cap body 10 is provided with a mechanism for inhaling external air. Specifically, the area between the field of view opening 11 and the wearing opening 12 is the front lower area 14. The front lower area 14 is an area corresponding to the jaw of the wearer. A defroster 16 is provided in the left-right center of the front lower area 14. The defroster 16 is provided at a position along the lower edge of the field of view opening 11. An air outlet 20 is provided in the rear upper area 19 behind the front upper area 17. The rear upper area 19 is an area corresponding to the back of the wearer's head.

[0013] In the cap body 10 as described above, air is sucked from the defroster 16 or the like due to wind pressure during driving. Then, the outside air that flows into the interior of the helmet 1 is guided by the air flow inside and discharged from the air outlet 20 (see FIG. 2 ). Figure 1 The defroster 16 blows the introduced air from the lower end of the viewing opening 11 toward the upper end to the inner surface of the hood 13 in the closed state. Thus, the hood 13 can suppress the occurrence of frost, ice, condensation, etc.

[0014] [Defroster] like Figure 2 and Figure 3As shown in FIG. 1 , the defroster 16 as the external air inflow mechanism includes an outer wall member 21 and an inner wall member 22 . The defroster 16 also includes a base 23 , a shutter 24 , and a mesh member 25 .

[0015] The outer wall member 21 is a mask constituting the front lower region 14 of the cap body 10. The outer wall member 21 is a member extending in the jaw region of the wearer. The inner wall member 22 is a member overlapping the inner surface of the outer wall member 21. The inner wall member 22 overlaps the inner surface of the outer wall member 21 and constitutes a storage portion 26 (see FIG. 2 ) for storing the mesh member 25. Figure 5 ). The upper end of the storage portion 26 is open. This opening is equivalent to a disassembly port 27 for disassembling the mesh member 25. The disassembly port 27 is open upward. The disassembly port 27 is an opening toward the inner surface of the shield 13 in a closed state, and is also an air supply port for blowing air to the inner surface of the shield 13. The base 23 is a member overlapping with the outer surface of the outer wall member 21. The gate 24 is a member movably mounted on the outer surface of the base 23.

[0016] [Outer wall components] like Figure 3 As shown, the outer surface of the outer wall member 21 has a component placement recess 31 for placing the base 23 in the center in the left-right direction. The component placement recess 31 has a central opening 33 and an external air inlet 34 as a component of the defroster in the upper center in the left-right direction. The external air inlet 34 is provided in a pair of left and right positions, for example, on both sides of the central opening 33. The central opening 33 is a through hole having a rectangular shape. The central opening 33 is a place where a locking member 30 (see FIG. 1 ) for locking the shield 13 in a closed state is placed. Figure 2 ) and other components. The left and right pair of external air inlets 34 are rectangular through holes extending from the central opening 33 to the left and right directions and being long in the left and right directions. The central opening 33 and the external air inlet 34 are arranged side by side in the left and right directions.

[0017] like Figure 4 and Figure 5 As shown, the inner surface of the outer wall member 21 is provided with a first storage recess 36 which is recessed toward the outer surface to form the storage portion 26. The central opening 33 and a pair of left and right external air inlet ports 34 are located at the bottom surface 36a of the first storage recess 36. The first storage recess 36 is a recess extending from the left and right center to the left and right directions and extending downward from the center. The first storage recess 36 is covered by the inner wall member 22, thereby forming a storage portion 26 for storing the mesh member 25 between the outer wall member 21 and the inner wall member 22.

[0018] The inner surface of the outer wall member 21 is provided with a plurality of ribs 37 below the first storage recess 36 and below the central opening 33 and the pair of left and right external air inlets 34. The plurality of ribs 37 extend in parallel to each other in the left-right direction. The plurality of ribs 37 are used to mount a portion of an inner lining such as a buffer. In addition, a through hole 38 for mounting the base 23 is formed below the plurality of ribs 37. The upper area of ​​the upper rib 37 becomes an area constituting the storage portion 26. The mounting protrusion 63 of the base 23 is inserted through the through hole 38 (see Figure 3 ).

[0019] [Inner wall components] The inner wall member 22 is a member disposed on the inner surface of the outer wall member 21, and has a basic shape that imitates the curved shape of the outer wall member 21. The inner surface of the inner wall member 22 is a surface facing the wearer, and the outer surface is a surface facing the inner surface of the outer wall member 21. The outer surface of the inner wall member 22 has a second storage recess 41 covering the first storage recess 36.

[0020] The second storage recess 41 forms a recess on the outer surface side by expanding toward the inner surface side. The upper end of the second storage recess 41 is equivalent to the opening end for forming the disassembly port 27. The air flowing in from the external air inlet 34 contacts the bottom surface 41a of the second storage recess 41 after passing through the mesh member 25. The bottom surface 41a is a wall that changes the flow direction of the contacted air to the direction of the opening end for forming the disassembly port 27. A lower wall portion 41b rising from the bottom surface portion 41a is provided below the side of the bottom surface portion 41a opposite to the opening end. The lower wall portion 41b is a wall that forms the storage portion 26. The lower end of the inserted mesh member 25 abuts against the lower wall portion 41b.

[0021] The bottom surface 41a has a groove 42 extending in the left-right direction. The groove 42 is a mounting groove for mounting the interior components of the helmet 1. A protrusion 43 is provided at the substantially center in the left-right direction of the bottom surface 41a of the second storage recess 41. The protrusion 43 supports components such as the locking member 30 from the inside.

[0022] The inner wall member 22 has a lower protrusion 44 protruding downward from the center in the left-right direction. The lower protrusion 44 is arranged in a manner covering the plurality of ribs 37. The inner wall member 22 has mounting protrusions 45 on both sides of the second storage recess 41 in the left-right direction. The outer wall member 21 has mounting holes 39 corresponding to the mounting protrusions 45 on both sides of the first storage recess 36. The outer wall member 21 and the inner wall member 22 are combined at the mounting protrusions 45 and the mounting holes 39 using fixing members such as small screws. Thus, a storage portion 26 is formed between the outer wall member 21 and the inner wall member 22. The storage portion 26 is a space that is closed on the left and right and at the bottom, and only the upper end is open, and the upper end is a disassembly port 27. In addition, the mesh member 25 is inserted into the storage portion 26.

[0023] The inner wall member 22 is provided with stoppers 46a, 46b, 46c, 46d, and the stoppers 46a, 46b, 46c, 46d restrict the mesh member 25 from excessively entering the storage portion 26 when the mesh member 25 is stored in the storage portion 26 from the detachable opening 27. That is, the stoppers 46a, 46b, 46c, 46d restrict the mesh member 25 from excessively entering downward in the storage portion 26. The stoppers 46a, 46b, 46c, 46d are provided upright on the bottom surface portion 41a and are provided with restriction pieces 57a, 57b, 57c, 57d (see Figure 6 and Figure 7 The stoppers 46a, 46b, 46c, 46d are located between the upper end of the mounting and disassembly opening 27 and the lower wall portion 41b in the up-down direction.

[0024] The stoppers 46a and 46b are both end contact pieces located at both ends in the left-right direction of the second housing recess 41. The stoppers 46a and 46b are located at substantially the same height as the groove 42. The stoppers 46 c and 46 d are central contact pieces located between the stoppers 46 a and 46 b and are located between the groove 42 and the protrusion 43 .

[0025] Furthermore, an engagement recess 47 is provided at the upper end of the detachable opening 27. As an example, the engagement recess 47 is provided at the center in the left-right direction. The engagement piece 58 (see FIG. 2 ) of the mesh member 25 is engaged with the engagement recess 47. Figure 6 and Figure 7 ).

[0026] [Network member] like Figure 6 and Figure 7 As shown, the mesh member 25 is a member that can be detached from the storage portion 26. The mesh member 25 is a resin molded body with elasticity. The mesh member 25 includes a mesh portion 51, a reinforcing wall portion 52, and a connecting wall portion 53. Two mesh portions 51 are respectively arranged corresponding to a pair of left and right external air inlets 34. Each mesh portion 51 has a size that can close each external air inlet 34. Each mesh portion 51 has, for example, a rectangular shape that is longer in the left and right directions. Each mesh (hole) of the mesh portion 51 has a diameter of several millimeters. Each mesh has a size that can catch small insects. Each mesh is not fine enough to capture foreign particles below several hundred μm or below tens of μm. In the case of capturing foreign particles, it is sufficient to further configure a filter with a finer mesh such as non-woven fabric on the mesh portion 51. The two mesh portions 51 are separately arranged in a manner that avoids the position of the central opening 33.

[0027] On one surface of each mesh portion 51 facing the inner wall member 22, a plurality of reinforcing wall portions 52 are erected in the up-down direction (the first direction) intersecting the left-right direction (the second direction) as the long side direction. The reinforcing wall portions 52 suppress deformation of the mesh portion 51. In addition, the other surface of the mesh portion 51 facing the outer wall member 21 is a surface that abuts and presses against the bottom surface portion 36a of the first storage recess 36. The mesh portion 51 is fixed to the base end of each reinforcing wall portion 52. The top end of each reinforcing wall portion 52 on the side opposite to the base end is a free end. The total dimension of the thickness of the mesh portion 51 and the height of the reinforcing wall portion 52 corresponds to the interval between the bottom surface portion 36a of the first storage recess 36 and the bottom surface portion 41a of the second storage recess 41 in the storage portion 26. The top end of the reinforcing wall portion 52 is close to the bottom surface portion 41a of the second storage recess 41.

[0028] In each mesh portion 51, the reinforcing wall portion 52 is, for example, a straight wall extending in the up-down direction. The reinforcing wall portion 52 includes an outer end reinforcing wall portion 52a, an inner end reinforcing wall portion 52b, and an inner side reinforcing wall portion 52c. The outer end reinforcing wall portion 52a is erected at the outer side end in the left-right direction of each mesh portion 51. The inner end reinforcing wall portion 52b is erected at the inner side end in the left-right direction of each mesh portion 51. The inner side reinforcing wall portion 52c is erected between the outer end reinforcing wall portion 52a and the inner end reinforcing wall portion 52b.

[0029] The lower end of any one of the reinforcing wall portions 52 is aligned with the lower end of the mesh portion 51. The upper end of the outer end reinforcing wall portion 52a is located above the upper end of the mesh portion 51, but is lower than the upper ends of the inner end reinforcing wall portion 52b and the inner side reinforcing wall portion 52c. The upper ends of the inner end reinforcing wall portion 52b and the inner side reinforcing wall portion 52c are located above the upper end of the outer end reinforcing wall portion 52a, and their heights are consistent. The upper ends of the inner end reinforcing wall portion 52b and the inner side reinforcing wall portion 52c are provided with a snap-fit ​​claw 54, and the snap-fit ​​claw 54 has a hook shape. Each snap-fit ​​claw 54 protrudes in the direction of the mesh portion 51. When the mesh member 25 is stored in the storage portion 26, each snap-fit ​​claw 54 is engaged with the upper edge portion 21a of the outer side wall member 21. The upper edge portion 21a is an edge portion constituting the lower edge of the field of view opening 11. When the edge of the liner is arranged, the upper edge 21 a engages with the edge of the liner.

[0030] In each mesh portion 51, a flow path 55 is formed between the outer end reinforcement wall portion 52a and the inner side reinforcement wall portion 52c, between mutually adjacent inner side reinforcement wall portions 52c, and between the inner side reinforcement wall portion 52c and the inner end reinforcement wall portion 52b, so that the air flowing in from the external air inlet 34 changes its wind direction and moves toward the detachable port 27. The inner side reinforcement wall portion 52c is provided with a concavely depressed communicating portion 56 at an edge portion corresponding to the bottom surface portion 36a of the first housing recessed portion 36. The communicating portion 56 connects adjacent flow paths 55.

[0031] The connecting wall 53 crosses the reinforcing wall 52. That is, the connecting wall 53 is a strip-shaped portion connecting the upper ends of the reinforcing wall 52 and is located on the inner side of the engaging claw 54. The connecting wall 53 faces the bottom surface 41a of the second housing recess 41. In addition, the connecting wall 53 connects the two mesh portions 51.

[0032] Both ends of the connecting wall portion 53 also extend to the upper end of the outer end reinforcement wall portion 52a. Specifically, the connecting wall portion 53 has a constant width in the inner end reinforcement wall portion 52b and the inner side reinforcement wall portion 52c, but widens downward in the portion from the inner side reinforcement wall portion 52c closest to the outer end reinforcement wall portion 52a to the outer end reinforcement wall portion 52a. The widened portion becomes the crimping portion 53a. The connecting wall portion 53 is configured such that: the portion of the inner side reinforcement wall portion 52c is bent in a manner imitating the bottom surface portion 41a of the second storage recess 41, and the crimping portion 53a, which is the portion of the outer end reinforcement wall portion 52a, is slightly bent in the direction opposite to the bending direction of the inner side reinforcement wall portion 52c. When the crimping portion 53a is housed in the housing portion 26 , the crimping portion 53a is crimped against the bottom surface 41a of the second housing recess 41 , so that the connecting wall portion 53 elastically deforms and presses the net portion 51 against the bottom surface 36a of the first housing recess 36 .

[0033] In addition, the connecting wall portion 53 includes a central reinforcing wall portion 52d at a portion connecting the one mesh portion 51 and the other mesh portion 51. The central reinforcing wall portion 52d includes the engaging claws 54 like the other reinforcing wall portions 52a to 52c, but does not protrude downward from the connecting wall portion 53. Since the portion connecting the one mesh portion 51 and the other mesh portion 51 is not provided with the mesh portion 51, it becomes a recessed portion for evacuating the components arranged in the central opening 33.

[0034] Furthermore, limiting pieces 57a, 57b, 57c, and 57d are provided at the lower edge of the connecting wall portion 53. The limiting pieces 57a and 57b are respectively two end limiting pieces extending downward from the lower edge of the connecting wall portion 53 constituting the crimping portion 53a. The limiting pieces 57c and 57d are respectively central limiting pieces extending downward from between the inner end reinforcing wall portion 52b and the central reinforcing wall portion 52d.

[0035] An engaging piece 58 is provided at the upper edge of the connecting wall portion 53. The engaging piece 58 protrudes from the center of the connecting wall portion 53 in the left-right direction to the side opposite to the reinforcing wall portion 52. When the mesh member 25 is stored in the storage portion 26, the engaging piece 58 faces the outside from the engaging recess 47 provided in the detachment port 27. Therefore, the engaging piece 58 also becomes a portion for hooking the fingertips when the mesh member 25 is pulled out from the detachment port 27.

[0036] [Base] like Figure 3As shown, a base 23 is arranged on the outer surface of the outer wall member 21 and the component configuration recess 31. The base 23 has a shape of a curved surface that imitates the component configuration recess 31. The base 23 includes a central opening 33a corresponding to the central opening 33, and an external gas inlet 34a corresponding to the external gas inlet 34. In addition, the outer surface of the base 23 includes a guide piece 61 extending in the up-down direction. In addition, the base 23 includes a guide hole 62 extending in the up-down direction. The guide piece 61 and the guide hole 62 guide the movement of the gate 24 in the up-down direction. A mounting protrusion 63 is provided on the inner surface of the base 23. The mounting protrusion 63 is inserted into the through hole 38 and fixed to the cap body 10.

[0037] [Gate] The gate 24 overlaps with the outer surface of the base 23. The gate 24 has a V-shape. The gate 24 includes a closing portion 64 that closes a pair of left and right external air inlets 34, 34a and an operating portion 65 that connects the pair of closing portions 64. In addition, the portion between the pair of closing portions 64 in the gate 24 becomes a recessed portion for retracting the locking member 30 and the like, and the locking member 30 locks the shield 13 arranged at the central opening 33, 33a in a closed state. The inner surface of the gate 24 includes a snap-fitting piece 66 that engages with the guide hole 62 of the base 23. When the gate 24 moves downward, the external air inlets 34, 34a are opened by the closing portion 64, and when it moves upward, the external air inlets 34, 34a are closed by the closing portion 64.

[0038] [Method of disassembling and assembling the mesh member] The mesh member 25 constructed as described above is easily bent in the front-rear direction (thickness direction of the connecting wall portion) in the left-right direction by providing the connecting wall portion 53. On the other hand, it is not easy to bend in the front-rear direction in the vertical direction by providing the reinforcing wall portion 52. Thus, the mesh member 25 has rigidity for insertion and removal from the detachment port 27.

[0039] like Figure 8 and Fig. 9As shown, the mesh member 25 is attached to and detached from the storage portion 26 in a state where the shield 13 is moved upward to open the field of view opening 11 and the detachment opening 27 faces the outside. When the mesh member 25 is inserted into the storage portion 26, the mesh member 25 is inserted into the storage portion 26 from the detachment opening 27 with the lower end of the mesh member 25 on the side opposite to the engagement claw 54 as the insertion end. The reinforcing wall portion 52 facilitates the insertion operation by reinforcing the mesh portion 51, and also functions as an insertion guide by contacting the bottom surface portion 36a of the first storage recess 36 through its edge. The mesh member 25 is inserted until the lower end of the mesh portion 51 approaches the lower wall portion 41b that rises from the bottom surface portion 41a of the second storage recess 41. At the same time, the engagement claw 54 engages with the opening end of the detachment opening 27, that is, the upper edge portion 21a of the outer wall member 21. Alternatively, it engages with the edge of the lining disposed on the upper edge portion 21a. In addition, Figure 8 In the figure, the edge of the liner arranged at the upper edge portion 21a is omitted and not shown.

[0040] Here, the top ends of the limiting pieces 57a and 57b abut against the stoppers 46a and 46b, or the limiting pieces 57c and 57d abut against the stoppers 46c and 46d. At the same time, the engaging piece 58 of the net-like member 25 engages with the engaging recess 47 provided at the upper end of the detachable opening 27. Thus, the net-like member 25 is prevented from excessively entering the storage portion 26. For example, it is prevented from entering in a manner of sinking into between the outer wall member 21 and the inner wall member 22.

[0041] In addition, if Fig. 9 As shown, the crimping portion 53a is crimped to the bottom surface portion 41a of the second storage recess 41 near the detachment port 27. As a result, the mesh member 25 is not easily shaken in the storage portion 26, and the posture is stable. Furthermore, the left and right pair of mesh portions 51 are crimped so that no gap is formed around the external air inlet 34 of the bottom surface portion 41a of the second storage recess 41.

[0042] In addition, by pinching the reinforcing wall portion 52 or the connecting wall portion 53 facing the detachment opening 27 with fingers or the like, the mesh member 25 is pulled upward, thereby pulling the mesh member 25 out of the storage portion 26. At this time, by hooking the fingertips on the engaging piece 58 facing the detachment opening 27, the mesh member 25 can be easily pulled out of the storage portion 26.

[0043] [effect] like Fig.10 As shown, when the defroster 16 is not in use, the shutter 24 moves upward, and the sealing portion 64 seals the outside air inlets 34, 34a. Therefore, wind pressure does not enter the helmet 1 through the outside air inlets 34, 34a.

[0044] like Fig.11As shown, in order to start using the defroster 16, the shutter 24 is moved downward. As a result, the external air inlet 34, 34a is opened from the closing portion 64. Due to the wind pressure, air is sucked in from the external air inlet 34, 34a. The air passes through the mesh portion 51. At this time, foreign matter contained in the air is removed by the mesh portion 51. The air passing through the mesh portion 51 from the front contacts the bottom portion 41a of the second storage recess 41, and then the wind direction changes upward. The air is rectified by the flow path 55, and then blown to the inner surface of the shield 13 from the disassembly port 27 serving as the air supply port. As a result, the inner surface of the shield 13 can suppress the occurrence of frost, ice, condensation, etc. In addition, the external air that flows into the interior of the helmet 1 is discharged from the air outlet 20 (refer to Figure 1 middle arrow A).

[0045] [Effects of implementation methods] The above-described embodiment can achieve the following effects. (1) The air sucked in from the outside air inlet 34, 34a passes through the mesh portion 51 and is blown toward the inner surface of the shield 13 from the detachable port 27 as an air supply port. Foreign matter contained in the air sucked in from the outside air inlet 34, 34a can be removed by the mesh portion 51, and the internal environment of the helmet 1 can be maintained in a good state. The mesh member 25 can be removed from the storage portion 26 and cleaned.

[0046] (2) Since the attachment / detachment opening 27 has the function of an air supply opening, the structure of the storage section 26 can be simplified. (3) The mesh portion 51 is pressed against the inner surface of the outer wall member 21 in the stored state, thereby preventing the air sucked from the outside air inlet 34 from being blown toward the attachment opening 27 from the gap between the inner surface of the outer wall member 21 and the mesh portion 51. That is, by preventing the air that has not passed through the mesh portion 51 from being blown toward the inside of the helmet 1 from the attachment opening 27, foreign matter can be prevented from entering the inside of the helmet 1, and a decrease in the wearing feeling can be prevented.

[0047] (4) While the mesh portion 51 is reinforced by the reinforcing wall portion 52 , the air sucked in from the external air inlet 34 is rectified by the flow path 55 in the housing portion 26 so as to be blown from the detachable port 27 toward the inner surface of the closed hood 13 .

[0048] (5) The connecting wall portion 53 can be allowed to bend in a direction that facilitates insertion and removal of the mesh member 25 and can be reinforced. (6) The engagement claws 54 and the edge of the outer wall member 21 can prevent the mesh member 25 from excessively entering the deep part of the storage portion 26. Thus, the position of the mesh portion 51 relative to the outside air inlet 34 is less likely to shift.

[0049] (7) The posture of the mesh member 25 accommodated in the accommodation portion 26 can be stabilized by the crimping portion 53a being crimped to the bottom surface portion 36a of the first accommodation recess 36. Thus, the position of the mesh portion 51 relative to the outside air inlet 34 is less likely to shift.

[0050] (8) The top ends of the restricting pieces 57a, 57b, 57c, and 57d come into contact with the stoppers 46a, 46b, 46c, and 46d. This prevents the net-like member 25 from excessively entering the storage portion 26.

[0051] (9) The engaging piece 58 engages with the engaging recess 47 provided at the upper end of the attachment / detachment opening 27. This prevents the mesh member 25 from excessively entering the storage portion 26. In addition, the mesh member 25 can be easily pulled out of the storage portion 26 by hooking the engaging piece 58 with a fingertip.

[0052] Furthermore, the above-mentioned embodiment may be implemented with appropriate modifications as follows. The structure may be such that the engaging piece 58 is provided and the engaging recess 47 is omitted. In this case, the engaging piece 58 protrudes upward from the opening end of the detachment port 27 by the thickness of the engaging piece 58. Thus, when the net member 25 is pulled out from the storage portion 26, the engaging piece 58 can be easily hooked with a fingertip.

[0053] Furthermore, the engaging piece 58 may be omitted. In this case, the mesh member 25 can be pulled out from the storage portion 26 by pinching the upper end of the reinforcing wall portion 52 . The stoppers 46a, 46b, 46c, and 46d of the storage section 26 may be partially omitted. In this case, the limiting pieces 57a, 57b, 57c, and 57d at the corresponding positions may be omitted. For example, if any one of the stoppers 46a, 46b and the stoppers 46c, 46d is omitted, the limiting pieces 57a, 57b and the limiting pieces 57c, 57d may be omitted accordingly. By adopting such a structure, the structure of the mesh member 25 or the storage section 26 can be simplified.

[0054] Furthermore, the stoppers 46a, 46b, 46c, 46d and the limiting pieces 57a, 57b, 57c, 57d may be omitted. In this case, the lower end of the mesh member 25 abuts against the lower wall portion 41b defining the storage portion 26, thereby preventing the storage state from deviating from a predetermined position.

[0055] The crimping portion 53a may be omitted. Regarding the posture of the mesh member 25, for example, a cover body for opening and closing the attachment and detachment port 27 is provided, and the posture of the mesh member 25 accommodated in the accommodation portion 26 can be stabilized by the cover body.

[0056] The engaging claw 54 provided at the tip of the reinforcing wall portion 52 may be omitted, or the engaging claw 54 may be provided only on a part of the reinforcing wall portion 52. Thus, the structure of the mesh member 25 can be simplified.

[0057] The connecting wall portion 53 may be omitted to simplify the structure of the net-like member 25. In addition, the two net-like portions 51 may be separated and each net-like portion 51 may be provided with a connecting wall portion 53. In this case, two storage portions 26 are provided corresponding to each net-like portion 51. Thus, the two net-like portions 51 can be removed from the storage portion 26, respectively, and for example, only the dirty net-like portion 51 can be removed and cleaned.

[0058] The reinforcing wall 52 may be partially or entirely omitted from the mesh member 25. For example, if the mesh 51 is configured to be less prone to bending, even if the reinforcing wall 52 is partially or entirely omitted, the ease of attachment and detachment from the housing portion 26 can be prevented from being reduced.

[0059] The reinforcing wall portion 52 may not be a straight wall extending straight in the vertical direction, but may be a wall having a wave shape undulating in the left-right direction, and may be provided intermittently in the vertical direction. In the case where the reinforcing wall portion 52 is provided intermittently in the vertical direction, the portion where the reinforcing wall portion 52 is not provided functions as a connecting portion connecting adjacent flow paths 55.

[0060] The communicating portion 56 provided in the reinforcing wall portion 52 may be omitted. In addition, instead of the communicating portion 56, an insertion hole penetrating in the thickness direction of the reinforcing wall portion 52 may be provided. The mesh portion 51 may not be pressed against the periphery of the external air inlet 34, that is, the inner surface of the outer wall member 21. Instead, for example, an elastic body or the like that fills the gap between the mesh portion 51 and the inner surface of the outer wall member 21 may be provided on the inner surface of the outer wall member 21 or on the surface of the mesh portion 51 on the outer wall member 21 side. For example, the elastic body may be provided at a position corresponding to the outer periphery of the mesh portion 51, or may be provided in a manner that surrounds the external air inlet 34.

[0061] The mesh member 25 may have a rigidity that is not easily bent as a whole. If the air supply port for blowing air toward the inner surface of the shield 13 faces the inner surface of the shield 13, the position of the detachable port 27 may be set at a position different from the air supply port. For example, the air supply port may be set at the lower edge of the field of vision opening 11, and the detachable port may be set at the lower edge of the front lower area 14 (for example, the edge of the wearing opening 12). In this case, it is preferred that the detachable port is closed by the cover member in a state where the mesh member 25 is stored in the storage portion 26 so that the air faces the air supply port.

[0062] The defroster 16 having the mesh member 25 may be provided at the upper edge or the left and right side edges of the viewing opening 11. That is, the defroster 16 may be configured to blow air toward the inner surface of the shroud 13 from any direction as long as the air outlet faces the inner surface of the shroud 13.

[0063] A filter with a finer mesh such as nonwoven fabric may be arranged on the mesh portion 51. This allows the capture of finer foreign particles. For example, the filter may be arranged on the mesh portion 51 by providing a hook or the like on any surface of the mesh portion 51 and hooking the filter on the hook.

[0064] In the cap body 10 , an upper inlet may be provided in the upper region 17 in front of the field of vision opening 11 . This allows the outside air to be introduced further into the cap body 10 .

[0065] The helmet 1 is not limited to a full-face helmet, and may be, for example, a flip-up helmet with a raised jaw, an open-face helmet, a helmet with a detachable jaw, or a movable helmet that can be fixed to the back of the head by rotating the jaw.

Claims

1. A helmet comprising: The cap body has an opening for vision at the front; a protective cover mounted on the cap body in a manner capable of opening and closing the field of vision opening; and an external air inflow mechanism configured to blow air toward the inner surface of the shield in a closed state closing the field of view opening, The external air inflow mechanism includes a storage portion and a mesh member detachably stored in the storage portion, wherein the storage portion is formed inside the cap body. The storage portion comprises: an outer wall member having an external air inlet connecting the inside and the outside; an inner wall member arranged opposite to the outer wall member; a disassembly port for disassembling the mesh member; and an air supply port for blowing air sucked from the external air inlet toward the inner surface of the shield in the closed state. The net-like member includes a net-like portion that faces the external air inlet when the net-like member is accommodated in the accommodation portion.

2. The helmet according to claim 1, wherein: The assembly and disassembly opening and the air supply opening are the same opening.

3. The helmet according to claim 1, wherein: The net portion is pressed against the inner surface of the outer side wall member in the stored state.

4. The helmet according to any one of claims 1 to 3, wherein: The mesh member includes a plurality of mutually separated reinforcing wall portions, The reinforcing wall portions are walls extending in a first direction, which is a direction of the air outlet, in the stored state on a surface of the net portion that faces the inner wall member.

5. The helmet according to claim 4, wherein: The mesh member includes a connecting wall portion that connects the plurality of reinforcing wall portions in a second direction intersecting the first direction.

6. The helmet according to claim 4, wherein: At least a part of the plurality of reinforcing wall portions includes an engaging claw that engages with an edge portion of the outer wall member constituting the attachment or detachment port.

7. The helmet according to claim 5, wherein: The mesh member includes a pressure-contact portion that is pressure-contacted to the inner wall member at both ends of the connecting wall portion in the second direction in the accommodated state.

8. The helmet according to any one of claims 1 to 3, wherein: The storage portion is provided with a stopper, and the stopper restricts the mesh member from excessively entering the storage portion. The net-like member includes a restriction piece, and when the restriction piece is inserted into the housing portion, a tip end of the restriction piece abuts against the stopper.

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