Helmet

Abstract

To provide a helmet capable of suppressing deterioration in a wearing comfort by suppressing entry of a foreign matter from an outside air inflow mechanism.SOLUTION: A helmet includes: a cap body with a viewing opening in front; a shield that is attached to the cap body so that the viewing opening can be opened and closed; and a defroster 16 that blows air to an inner surface of the shield that is in a closed state that is blocking the viewing opening, the defroster 16 including a housing section 26 configured inside the cap body; and a mesh member 25 that is detachably housed in the housing section 26, the housing section 26 including an outer wall member 21 having an outside air inlet 34 connecting inside and outside; an inner wall member 22 located opposite the outer wall member 21; and an attachment / detachment port 27 for attaching and detaching the mesh member 25 that functions as an air outlet that blows air sucked in from the outside air inlet 34 to the inner surface of the shield in a closed state, and the mesh member 25 including a mesh section 51 that faces the outside air inlet 34 in a housed state housed in the housing section 26.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] The present invention relates to a helmet.

Background Art

[0002] Among motorcycle helmets, there are those equipped with an outside air inflow mechanism that utilizes wind pressure such as an air intake and a defroster to take outside air into the inside of the helmet. A helmet equipped with an outside air inflow mechanism can improve the wearing comfort by enhancing the breathability inside the helmet. For example, Patent Document 1 describes a front air intake in which a grill and a filter are interposed between a first frame and a second frame.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The outside air inflow mechanism is a structure that takes outside air into the inside of the helmet from an outside air inlet by utilizing the wind pressure applied to the moving motorcycle. Therefore, foreign matters such as dust and small insects may enter the inside of the helmet together with the outside air from the outside air inlet. When foreign matters enter the inside of the helmet, the wearing comfort may be reduced.

Means for Solving the Problems

[0005] A helmet for solving the above problems includes a cap body having a viewing opening at the front, a shield detachably attached to the cap body so as to be able to open and close the viewing opening, and an outside air inflow mechanism for blowing air against the inner surface of the shield in a closed state closing the viewing opening. The outside air inflow mechanism includes a housing portion formed inside the cap body and a mesh member detachably housed in the housing portion. The housing portion includes an outer wall member having an outside air inlet connecting the inside and the outside, an inner wall member positioned opposite to the outer wall member, an attachment / detachment opening for attaching and detaching the mesh member, and a blowing port for blowing the air inhaled from the outside air inlet against the inner surface of the shield in the closed state. The mesh member includes a mesh portion facing the outside air inlet in a housed state housed in the housing portion.

[0006] According to the above configuration, the air inhaled from the outside air inlet is blown against the inner surface of the shield from the blowing port through the mesh portion. Foreign matters contained in the air inhaled from the outside air inlet can be removed by the mesh portion, and the environment inside the helmet can be maintained in a good state. The mesh member can be removed from the housing portion and cleaned.

[0007] In the above helmet, the attachment / detachment opening and the blowing port may be the same opening. According to the above configuration, by providing one opening with the functions of the attachment / detachment opening and the blowing port, the configuration of the housing portion can be simplified.

[0008] In the above helmet, the mesh portion may be configured to be pressed against the inner surface of the outer wall member in the housed state. According to the above configuration, it is possible to prevent the air inhaled from the outside air inlet from flowing toward the blowing port through the gap between the inner surface of the outer wall member and the mesh portion. That is, by preventing the air that has not passed through the mesh portion from being blown into the inside of the helmet from the blowing port, the entry of foreign matters into the inside of the helmet can be suppressed.

[0009] In the above-mentioned helmet, the mesh member includes a plurality of reinforcing wall portions spaced apart from each other, and each of the reinforcing wall portions may be formed of a wall extending in a first direction, which is the direction of the air outlet in the housed state, on a surface facing the inner wall member in the mesh portion. According to the above configuration, while reinforcing the mesh portion with the reinforcing wall portions, in the housing portion, the air inhaled from the outside air inlet can be rectified and blown from the air outlet to the inner surface of the shield in the closed state.

[0010] In the above-mentioned helmet, the mesh member may be configured to include a connecting wall portion that connects the plurality of reinforcing wall portions in a second direction intersecting the first direction. According to the above configuration, the mesh member can be reinforced by the connecting wall portion.

[0011] In the above-mentioned helmet, at least some of the plurality of reinforcing wall portions may be configured to include engaging claws that engage with an edge portion constituting the wearing and removing opening. According to the above configuration, it is possible to prevent the mesh member from entering too far into the housing portion and to make it difficult for the position of the mesh portion with respect to the outside air inlet to shift.

[0012] In the above-mentioned helmet, the mesh member may be configured to include pressing portions that are pressed against the inner wall member at both ends of the connecting wall portion in the second direction in the housed state. According to the above configuration, the posture of the mesh member housed in the housing portion can be stabilized.

[0013] In the above-mentioned helmet, the housing portion may include a stopper that restricts the mesh member from entering the housing portion too much, and the mesh member may be configured to include a regulating piece whose tip abuts against the stopper when inserted into the housing portion. According to the above configuration, the tip of the regulating piece abuts against the stopper. Thereby, the mesh member can be prevented from entering the housing portion too much.

Advantages of the Invention

[0014] According to the above configuration, by suppressing the entry of foreign matters from the outside air inflow mechanism, it is possible to suppress a decrease in the wearing feeling.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Embodiments for Carrying Out the Invention

[0016] Hereinafter, a helmet to which the present invention is applied will be described with reference to the drawings. In the present embodiment, front, rear, left, right, up, and down, which are the directions as viewed from the helmet wearer, are shown as front, rear, left, right, up, and down with respect to the helmet.

[0017] [Overall Configuration of the Helmet] The helmet 1 includes a cap body 10 and a liner as a shock absorber disposed 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 liner is composed of a shock absorbing member made of a foamed resin (e.g., expanded polystyrene), an interior pad made of urethane foam, etc.

[0018] The cap body 10 includes a viewing opening 11 and a mounting opening 12. The viewing opening 11 is formed in the front region of the cap body 10. The viewing opening 11 is an opening that extends wider in the left-right direction than in the up-down direction to ensure the wearer's field of view. A shield 13, which is a plate member having light transmissivity, is attached to the viewing opening 11.

[0019] The shield 13 is a plate-shaped member having light transmissivity. The shield 13 is curved so as to follow the curved surface shape of the outer surface of the cap body 10 and has a size capable of closing the viewing opening 11. Both ends of the shield 13 in the left-right direction are rotatably attached to regions on both sides of the viewing opening 11, and the viewing opening 11 can be opened and closed. The shield 13 moves from a closed state where it closes the viewing opening 11 to an open state where it moves above the viewing opening 11 to open the viewing opening 11. In the closed state, the shield 13 prevents foreign objects, rain, wind, etc. flying from the front from entering the helmet 1 while improving the wearer's visibility.

[0020] The mounting opening 12 is formed in the lower region of the cap body 10. The mounting opening 12 is an opening for inserting the wearer's head. A pair of left and right jaw straps are attached to the mounting opening 12. The base ends of the left and right jaw straps are fixed to the cap body 10. A buckle is attached to the free end of one of the jaw straps. A ratchet is attached to the free end of the other jaw strap. The pair of left and right jaw straps form a series of jaw straps when the ratchet and the buckle are coupled.

[0021] The helmet body 10 is provided with a mechanism for inhaling outside air in order to take in outside air into the inside of the helmet 1 and improve the wearing comfort. Specifically, the area between the vision opening 11 and the wearing opening 12 is the front lower area 14. The front lower area 14 is an area corresponding to the wearer's jaw. A defroster 16 is provided at the center in the left-right direction in the front lower area 14. The defroster 16 is provided at a position along the lower edge of the vision opening 11. An air outlet 20 is provided in the rear upper area 19 which is behind the front upper area 17. The rear upper area 19 is an area corresponding to the wearer's occipital region.

[0022] In the helmet body 10 as described above, due to the wind pressure during running, air is inhaled from the defroster 16 and the like. Then, the outside air that has flowed into the inside of the helmet 1 is guided by the air flow inside and exhausted from the air outlet 20 (see arrow A in FIG. 1). The defroster 16 blows the air taken in from the lower end to the upper end of the vision opening 11 against the inner surface of the shield 13 in the closed state. Thereby, the shield 13 can suppress the occurrence of frosting, icing, condensation, and the like.

[0023] [Defroster] As shown in FIGS. 2 and 3, the defroster 16 as an outside air inflow mechanism includes an outer wall member 21 and an inner wall member 22. Further, it includes a base 23, a shutter 24, and a mesh member 25.

[0024] The outer wall member 21 is a face cover that constitutes the front lower region 14 of the cap body 10. The outer wall member 21 is a member that extends to the jaw region of the wearer. The inner wall member 22 is a member that is overlapped on the inner surface of the outer wall member 21. The inner wall member 22 is overlapped on the inner surface of the outer wall member 21 to form an accommodation portion 26 (see FIG. 5) for accommodating the mesh member 25. The accommodation portion 26 has an upper end that is open. This opening serves as an insertion / removal opening 27 for attaching / detaching the mesh member 25. This insertion / removal opening 27 faces upward. The insertion / removal opening 27 is an opening that faces the inner surface of the shield 13 in a closed state and is also an air outlet for blowing air against the inner surface of the shield 13. The base 23 is a member that is overlapped on the outer surface of the outer wall member 21. The shutter 24 is a member that is movably attached to the outer surface of the base 23.

[0025] [Outer wall member] As shown in FIG. 3, the outer surface of the outer wall member 21 is provided with a component arrangement recess 31 for arranging the base 23 at the center in the left-right direction. The component arrangement recess 31 is provided with a central opening 33 and an outside air inlet 34 that constitutes a defroster at the upper center in the left-right direction. The outside air inlet 34 includes, for example, a pair on the left and right and is located 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 component arrangement opening in which a locking member 30 (see FIG. 2) for locking the shield 13 in a closed state and the like are arranged. The pair of left and right outside air inlets 34 are through holes having a long rectangular shape extending in the left-right direction from the central opening 33. The central opening 33 and the outside air inlet 34 are arranged side by side in the left-right direction.

[0026] As shown in FIGS. 4 and 5, the inner surface of the outer wall member 21 is provided with a first accommodation recess 36 that forms the accommodation portion 26 by being recessed in the direction of the outer surface. The bottom surface portion 36a of the first accommodation recess 36 is where the central opening 33 and the pair of left and right outside air inlets 34 are located. The first accommodation recess 36 is a recess that extends in the left-right direction from the left and right center and also extends downward from the center. The first accommodation recess 36 forms an accommodation portion 26 for accommodating the mesh member 25 between the outer wall member 21 and the inner wall member 22 when the inner wall member 22 covers it.

[0027] The inner surface of the outer wall member 21 is provided with a plurality of ribs 37 below the first accommodation recess 36, below the central opening 33 and the pair of left and right outside air inlets 34. The plurality of ribs 37 are parallel to each other and extend in the left - right direction. The plurality of ribs 37 are used for attaching a part of a liner such as a cushion. Also, a through - hole 38 for attaching the base 23 is formed between the plurality of ribs 37 and the lower opening 32. The region above the upper ribs 37 becomes the region constituting the accommodation portion 26. The attachment protrusion 63 (see FIG. 3) of the base 23 is inserted into the through - hole 38.

[0028] [Inner wall member] The inner wall member 22 is a member disposed on the inner surface of the outer wall member 21, and has a shape following the curved shape of the outer wall member 21 as its basic shape. The inner surface of the inner wall member 22 is the surface facing the wearer, and the outer surface is the surface facing the inner surface of the outer wall member 21. The outer surface of the inner wall member 22 is provided with a second accommodation recess 41 covering the first accommodation recess 36.

[0029] The second accommodation recess 41 forms a concave portion on the outer surface side by bulging on the inner surface side. And the upper end forms an opening end for constituting the wearing and removing opening 27. The bottom surface portion 41a of the second accommodation recess 41 is a wall against which the air flowing in from the outside air inlet 34 and passing through the mesh member 25 hits, and changes the direction of the flow in the direction of the opening end constituting the wearing and removing opening 27. The bottom surface portion 41a is provided with a lower wall portion 41b rising from the bottom surface portion 41a below the side opposite to the opening end. The lower wall portion 41b is a wall constituting the accommodation portion 26 and is a wall portion against which the lower end of the mesh member 25 abuts.

[0030] The bottom surface portion 41a is provided with a groove portion 42 extending in the left - right direction. The groove portion 42 is an attachment groove for attaching the interior parts of the helmet 1. In the bottom surface portion 41a of the second accommodation recess 41, a protrusion 43 is provided substantially at the center in the left - right direction. The protrusion 43 supports components such as the lock member 30 from the inside.

[0031] The inner wall member 22 is provided with downward projecting pieces 44 that project downward from the center in the left-right direction. The downward projecting pieces 44 are arranged so as to cover a plurality of ribs 37. The inner wall member 22 is provided with mounting bosses 45 on both sides in the left-right direction of the second housing recess 41. The outer wall member 21 is provided with mounting holes 39 corresponding to the mounting bosses 45 on both sides of the first housing recess 36. The outer wall member 21 and the inner wall member 22 are joined by a fixing member such as a screw at the mounting bosses 45 and the mounting holes 39. Thereby, a housing portion 26 is formed between the outer wall member 21 and the inner wall member 22. The housing portion 26 is a space that is closed on the left, right, and bottom, and only the upper end is open, and the upper end is the insertion / removal port 27. And a mesh member 25 is inserted into the housing portion 26.

[0032] When the mesh member 25 is housed in the housing portion 26 from the insertion / removal port 27, the inner wall member 22 is provided with stoppers 46a, 46b, 46c, 46d that regulate the mesh member 25 from entering the housing portion 26 too much. That is, the stoppers 46a, 46b, 46c, 46d regulate the mesh member 25 from entering downward too much in the housing portion 26. The stoppers 46a, 46b, 46c, 46d are erected on the bottom surface portion 41a and are abutting pieces against which the tips of the regulating pieces 57a, 57b, 57c, 57d (see FIGS. 6 and 7) of the mesh member 25 abut. The stoppers 46a, 46b, 46c, 46d are located between the upper end constituting the insertion / removal port 27 and the lower wall portion 41b in the vertical direction.

[0033] The stoppers 46a, 46b are both-end abutting pieces located at both ends in the left-right direction of the second housing recess 41. The stoppers 46a, 46b are located at substantially the same height as the groove portion 42. The stoppers 46c, 46d are center abutting pieces located between the stoppers 46a, 46b. The stoppers 46c, 46d are located between the groove portion 42 and the protrusion 43.

[0034] Furthermore, the upper end constituting the insertion / removal port 27 is provided with an engagement recess 47. The engagement recess 47 is provided, for example, at the center in the left-right direction. An engagement piece 58 (see FIGS. 6 and 7) of the mesh member 25 is engaged with the engagement recess 47.

[0035] [Mesh member] As shown in FIGS. 6 and 7, the mesh member 25 is a member detachable from the housing portion 26. The mesh member 25 is a resin molded body having 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 provided corresponding to a pair of left and right outside air inlets 34. Each mesh portion 51 has a size capable of closing each outside air inlet 34. Each mesh portion 51 has, for example, a rectangular shape that is long in the left - right direction. The size of each mesh (hole) is a hole of several millimeters. Each mesh is sized such that small insects can get caught. Each mesh is not fine enough to catch foreign particles of several hundred μm or less or several tens of μm or less. When catching foreign particles, a filter with a finer mesh such as a non - woven fabric may be further arranged on the mesh portion 51. The two mesh portions 51 are spaced apart so as to avoid the position of the central opening 33.

[0036] 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 (first direction) intersecting the left - right direction (second direction) which is the longitudinal direction. The reinforcing wall portion 52 suppresses the deformation of the mesh portion 51. The other surface of the mesh portion 51 facing the outer wall member 21 is a surface that abuts against and is pressed against the bottom surface portion 36a of the first accommodation recess 36. In each reinforcing wall portion 52, the base end is fixed to the mesh portion 51, and the tip end 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 accommodation recess 36 and the bottom surface portion 41a of the second accommodation recess 41 in the accommodation portion 26. The tip end is close to the bottom surface portion 41a of the second accommodation recess 41.

[0037] In each mesh portion 51, the reinforcing wall portion 52 is, for example, a straight wall extending in the vertical 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 end in the left-right direction of each mesh portion 51. The inner end reinforcing wall portion 52b is erected at the inner 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.

[0038] The lower ends of all the reinforcing wall portions 52 are aligned with the lower end of each 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 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 aligned. The upper ends of the inner end reinforcing wall portion 52b and the inner side reinforcing wall portion 52c are provided with engaging claws 54 having a hook shape. Each engaging claw 54 protrudes in the direction of the mesh portion 51. Each engaging claw 54 is engaged with the upper edge portion 21a of the outer side wall member 21 in a state where the mesh member 25 is accommodated in the accommodating portion 26. The upper edge portion 21a is an edge portion constituting the lower edge of the viewing opening 11. When the edge portion of the liner is arranged, the upper edge portion 21a is engaged with the edge portion of the liner.

[0039] In each mesh portion 51, between the outer end reinforcing wall portion 52a and the inner side reinforcing wall portion 52c, between the adjacent inner side reinforcing wall portions 52c, and between the inner side reinforcing wall portion 52c and the inner end reinforcing wall portion 52b, a flow path 55 is formed for changing the direction of the air flowing in from the outside air inlet 34 and making it flow toward the inlet / outlet 27. The inner side reinforcing wall portion 52c is provided with a communicating portion 56 recessed in a concave shape at an edge corresponding to the bottom surface portion 36a of the first accommodating recess 36. The communicating portion 56 connects the adjacent flow paths 55.

[0040] The connecting wall portion 53 crosses the reinforcing wall portion 52. That is, the connecting wall portion 53 is a belt-like portion connecting the upper ends of each reinforcing wall portion 52 and is located on the back side of the engaging claw 54. The connecting wall portion 53 faces the bottom surface portion 41a of the second accommodating recess 41. Further, the connecting wall portion 53 connects two mesh portions 51.

[0041] Both ends of the connecting wall portion 53 extend to the upper ends of the outer end reinforcing wall portions 52a. Specifically, the connecting wall portion 53 has a constant width in the portions of the inner end reinforcing wall portion 52b and the inner reinforcing wall portion 52c, but widens downward in the portion from the inner reinforcing wall portion 52c closest to the outer end reinforcing wall portion 52a to the outer end reinforcing wall portion 52a, and the widened portion is the pressure contact portion 53a. The connecting wall portion 53 is curved so as to follow the bottom surface portion 41a of the second accommodation recess 41 in the portion of the inner reinforcing wall portion 52c, and is configured to be slightly curved in the opposite direction in the pressure contact portion 53a which is the portion of the outer end reinforcing wall portion 52a. In a state where the pressure contact portion 53a is accommodated in the accommodation portion, the pressure contact portion 53a is pressed against the bottom surface portion 41a of the second accommodation recess 41, so that the connecting wall portion 53 is elastically deformed to press the mesh portion 51 against the bottom surface portion 36a of the first accommodation recess 36.

[0042] In addition, the connecting wall portion 53 is provided with a central reinforcing wall portion 52d at the portion connecting one mesh portion 51 and the other mesh portion 51. The lower end of the central reinforcing wall portion 52d does not protrude below the connecting wall portion 53, and the engaging claw 54 is also provided. The portion connecting one mesh portion 51 and the other mesh portion 51 is a recess for allowing the components arranged in the central opening 33 to escape without the mesh portion 51 being provided.

[0043] Furthermore, the lower edge of the connecting wall portion 53 is provided with regulating pieces 57a, 57b, 57c, 57d. The regulating pieces 57a, 57b are both end regulating pieces that extend downward from the lower edge of the connecting wall portion 53 and are each a portion where the pressure contact portion 53a is formed. The regulating pieces 57c, 57d are central regulating pieces that extend downward from between the inner end reinforcing wall portion 52b and the central reinforcing wall portion 52d.

[0044] An engaging piece 58 is engaged with the upper edge of the connecting wall portion 53. The engaging piece 58 protrudes on the center in the left-right direction of the connecting wall portion 53 and on the side opposite to the reinforcing wall portion 52. The engaging piece 58 faces outside the engaging recess 47 provided in the insertion / removal opening 27 in a state where the mesh member 25 is accommodated in the accommodation portion 26. Therefore, the engaging piece 58 also serves as a part where a fingertip can be hooked when pulling out the mesh member 25 from the insertion / removal opening 27.

[0045] [Base] As shown in FIG. 3, a base 23 is disposed on the outer surface of the outer wall member 21 and in the component arrangement recess 31. The base 23 has a shape following the curved surface of the component arrangement recess 31. The base 23 includes a central opening 33a corresponding to the central opening 33 and an outside air inlet 34a corresponding to the outside air inlet 34. Further, the outer surface of the base 23 is provided with guide pieces 61 extending in the vertical direction. The base 23 is also provided with guide holes 62 extending in the vertical direction. The guide pieces 61 and the guide holes 62 guide the vertical movement of the shutter 24. Mounting protrusions 63 are provided on the inner surface of the base 23. The mounting protrusions 63 are inserted through the through holes 38 and fixed to the cap body 10.

[0046] [Shutter] The shutter 24 is overlapped on the outer surface of the base 23. The shutter 24 has a V shape. The shutter 24 includes closing portions 64 that block the pair of left and right outside air inlets 34, 34a, and an operation portion 65 that connects the pair of closing portions 64. And between the pair of closing portions 64 of the shutter 24, there is a recess for escaping a locking member 30 or the like that locks the shield 13 disposed in the central openings 33, 33a in a closed state. The inner surface of the shutter 24 is provided with engaging pieces 66 that engage with the guide holes 62 of the base 23. When the shutter 24 moves downward, the closing portions 64 open the outside air inlets 34, 34a, and when the shutter 24 moves upward, the closing portions 64 close the outside air inlets 34, 34a.

[0047] [Method for attaching and detaching the mesh member] The mesh member 25 configured as described above is likely to bend in the front-rear direction (the thickness direction of the connecting wall portion) in the left-right direction due to the presence of the connecting wall portion 53. On the other hand, due to the presence of the reinforcing wall portion 52, it is less likely to bend in the front-rear direction in the up-down direction. As a result, the mesh member 25 can be inserted and removed from the insertion / removal opening 27 and has rigidity.

[0048] As shown in FIGS. 8 and 9, the attachment / detachment of the mesh member 25 to / from the housing portion 26 is performed with the viewing opening 11 opened by moving the shield 13 upward so that the insertion / removal opening 27 faces the outside. When inserting the mesh member 25 into the housing portion 26, the mesh member 25 is inserted into the housing portion 26 from the insertion / removal opening 27 with the lower end on the side opposite to the engaging 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 having its edge contact the bottom surface portion 36a of the first housing recess 36 or the like. 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 housing recess 41. At the same time, the engaging claw 54 is engaged with the opening end of the insertion / removal opening 27, that is, the upper edge portion 21a of the outer wall member 21. Or, it is engaged with the edge of the liner arranged on the upper edge portion 21a. In FIG. 8, the edge of the liner arranged on the upper edge portion 21a is omitted and not shown.

[0049] Here, the tips of the regulating pieces 57a, 57b abut against the stoppers 46a, 46b, and the regulating pieces 57c, 57d abut against the stoppers 46c, 46d. At the same time, the engaging piece 58 of the mesh member 25 is engaged with the engaging recess 47 provided at the upper end that constitutes the insertion / removal opening 27. This prevents the mesh member 25 from entering the housing portion 26 too far. For example, it can prevent the mesh member 25 from entering in a way that it bites into the space between the outer wall member 21 and the inner wall member 22.

[0050] Further, as shown in FIG. 9, the pressure contact portion 53a is pressure contacted to the bottom surface portion 41a of the second accommodation recess 41 near the insertion / removal opening 27. Thereby, the mesh member 25 is less likely to rattle within the accommodation portion 26 and its posture becomes stable. Further, the pair of left and right mesh portions 51 are pressure bonded so that no gap is formed around the outside air inlet 34 in the bottom surface portion 41a of the second accommodation recess 41.

[0051] Note that the mesh member 25 is pulled upward by pinching the reinforcing wall portion 52 or the connecting wall portion 53 facing the insertion / removal opening 27 with a finger or the like, whereby the mesh member 25 is pulled out from the accommodation portion 26. At this time, by hooking the fingertip on the engaging piece 58 facing the insertion / removal opening 27, the mesh member 25 can be easily pulled out from the accommodation portion 26.

[0052] [Operation] As shown in FIG. 10, when not in use, the defroster 16 has the shutter 24 moved upward and the closing portion 64 in a state where the outside air inlets 34 and 34a are closed. Therefore, air does not enter the helmet 1 through the outside air inlets 34 and 34a due to wind pressure.

[0053] As shown in FIG. 11, to start using the defroster 16, the shutter 24 is moved downward. Thereby, the closing portion 64 opens the outside air inlets 34 and 34a. Air is inhaled from the outside air inlets 34 and 34a due to wind pressure. The air passes through the mesh portion 51. At this time, foreign matters contained in the air are removed by the mesh portion 51. The air from the front that has passed through the mesh portion 51 hits the bottom surface portion 41a of the second accommodation recess 41, and then the wind direction changes upward. The air is rectified by the flow path 55 and blown onto the inner surface of the shield 13 from the insertion / removal opening 27 which is the air outlet. Thereby, the generation of frosting, icing, dew condensation, etc. on the inner surface of the shield 13 is suppressed. Then, the outside air that has flowed into the helmet 1 is exhausted from the air outlet 20 (see arrow A in FIG. 1).

[0054] [Effects of the Embodiment] The above embodiments can achieve the effects listed as follows. (1) The air inhaled from the outside air inlets 34, 34a is blown against the inner surface of the shield 13 from the wearing and removing opening 27 which is the air outlet through the mesh portion 51. Foreign matters contained in the air inhaled from the outside air inlets 34, 34a can be removed by the mesh portion 51, and the environment inside the helmet 1 can be maintained in a good state. The mesh member 25 can be removed from the accommodating portion 26 and cleaned.

[0055] (2) Since the wearing and removing opening 27 has the function of an air outlet, the configuration of the accommodating portion 26 can be simplified. (3) Since the mesh portion 51 is pressed against the inner surface of the outer wall member 21 in the accommodated state, it is possible to prevent the air inhaled from the outside air inlet 34 from flowing toward the wearing and removing opening 27 through 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 into the helmet 1 from the wearing and removing opening 27, the entry of foreign matters into the helmet 1 can be suppressed, and the deterioration of the wearing feeling can be suppressed.

[0056] (4) While reinforcing the mesh portion 51 with the reinforcing wall portion 52, in the accommodating portion 26, the air inhaled from the outside air inlet 34 can be rectified by the flow path 55 and blown against the inner surface of the shield 13 in the closed state from the wearing and removing opening 27.

[0057] (5) The connecting wall portion 53 can be reinforced while allowing bending in a direction that facilitates the insertion and removal of the mesh member 25. (6) The engaging claw 54 can prevent the mesh member 25 from entering too far into the back of the accommodating portion 26 and make it difficult for the position of the mesh portion 51 with respect to the outside air inlet 34 to shift.

[0058] (7) By pressing the pressure contact portion 53a against the bottom surface portion 36a of the first accommodating recess 36, the posture of the mesh member 25 accommodated in the accommodating portion 26 can be stabilized. Thereby, the position of the mesh portion 51 with respect to the outside air inlet 34 becomes difficult to shift.

[0059] (8) The tips of the regulating plates 57a, 57b, 57c, and 57d abut against the stoppers 46a, 46b, 46c, and 46d. Thereby, the mesh member 25 can be prevented from entering the accommodating portion 26 too far.

[0060] (9) The engaging piece 58 is engaged with an engaging recess 47 provided at the upper end that forms the insertion / removal opening 27. Thereby, the mesh member 25 can be prevented from entering the accommodating portion 26 too far. Further, by hooking a fingertip on the engaging piece 58, the mesh member 25 can be easily pulled out from the accommodating portion 26.

[0061] Note that the above-described embodiment can be further appropriately modified and implemented as follows. · It may be configured 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 insertion / removal opening 27 by the thickness of the engaging piece 58. Thereby, when the mesh member 25 is pulled out from the accommodating portion 26, the engaging piece 58 can be easily hooked with a fingertip.

[0062] Furthermore, the engaging piece 58 may be omitted. In this case, the mesh member 25 can be pulled out from the accommodating portion 26 by pinching the upper end of the reinforcing wall portion 52. · Part of the stoppers 46a, 46b, 46c, and 46d of the accommodating portion 26 may be omitted. In this case, the corresponding regulating plates 57a, 57b, 57c, and 57d may be omitted. For example, either one of the stoppers 46a, 46b and the stoppers 46c, 46d is omitted, and accordingly, either one of the regulating plates 57a, 57b and the regulating plates 57c, 57d is omitted. By adopting such a configuration, the configurations of the mesh member 25 and the accommodating portion 26 can be simplified.

[0063] · Further, the stoppers 46a, 46b, 46c, 46d and the regulating plates 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 that partitions the accommodating portion 26, so that the accommodation state can be prevented from deviating from a predetermined position.

[0064] ·The crimping part 53a may be omitted. For the posture of the mesh member 25, for example, a lid for opening and closing the insertion and removal opening 27 may be provided, and the posture of the mesh member 25 accommodated in the accommodating part 26 can be stabilized by the lid.

[0065] ·The engaging claws 54 provided at the tip of the reinforcing wall part 52 may be omitted, or the engaging claws 54 may be provided only on some of the reinforcing wall parts 52. Thereby, the configuration of the mesh member 25 can be simplified.

[0066] ·The connecting wall part 53 may be omitted to simplify the configuration of the mesh member 25. Also, the two mesh parts 51 may be configured to be separated, and each mesh part 51 may be provided with the connecting wall part 53. In this case, two accommodating parts 26 are provided corresponding to each mesh part 51. Thereby, the two mesh parts 51 can be removed from the accommodating part 26 separately, and for example, only the soiled mesh part 51 can be removed and cleaned.

[0067] ·In the mesh member 25, all or part of the reinforcing wall part 52 may be omitted. For example, if the mesh part 51 is configured to be difficult to bend, even if all or part of the reinforcing wall part 52 is omitted, it is possible to prevent a decrease in the operability of attachment and detachment to the accommodating part 26.

[0068] ·The reinforcing wall part 52 may not be a straight wall extending straight in the vertical direction, but may be a wall having a wavy shape undulating in the horizontal direction, or may be intermittently provided in the vertical direction. When the reinforcing wall part 52 is intermittently provided in the vertical direction, the portion where the reinforcing wall part 52 is not provided functions as a communication part connecting adjacent flow paths 55.

[0069] ·The communication part 56 provided in the reinforcing wall part 52 may be omitted. Also, instead of the communication part 56, an insertion hole penetrating in the thickness direction of the wall part may be provided in the reinforcing wall part 52. · The mesh portion 51 does not necessarily have to be pressed against the inner surface of the outer wall member 21 around the outside air inlet 34. Instead, for example, an elastic body or the like that fills the gap provided 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 the surface of the mesh portion 51 on the side of the outer wall member 21. For example, the elastic body can be provided at a position corresponding to the outer peripheral portion of the mesh portion 51, or can be provided so as to surround the outside air inlet 34.

[0070] · The mesh member 25 may have a rigidity that is difficult to bend as a whole. · If the air outlet for blowing air against the inner surface of the shield 13 faces the inner surface of the shield 13, the position of the attachment / detachment opening 27 may be provided at a position different from the air outlet. For example, the air outlet may be provided at the lower edge of the viewing opening 11, and the attachment / detachment opening may be provided at the lower edge of the front lower region 14 (for example, the edge of the mounting opening 12). In this case, it is preferable that the attachment / detachment opening is blocked by a lid member so that air flows toward the air outlet in a state where the mesh member 25 is housed in the housing portion 26.

[0071] · The defroster 16 provided with the mesh member 25 may be provided at the upper edge or the left and right side edges above the viewing opening 11. That is, as long as the air outlet faces the inner surface of the shield 13, the defroster 16 may be configured to blow air against the inner surface of the shield 13 from any direction.

[0072] · A filter with finer mesh such as a non-woven fabric may be arranged on the mesh portion 51. Thereby, finer foreign particles can be captured. For example, the filter can be arranged on the mesh portion 51 by providing hooks or the like on any surface of the mesh portion 51 and hooking them on the hooks.

[0073] · In the cap body 10, an upper intake may be provided in the front upper region 17 of the viewing opening 11. Thereby, outside air can be taken into the cap body 10 even more.

[0074] · The helmet 1 is not limited to a full-face helmet. For example, it may be a flip-up helmet with an elevating jaw, an open-face helmet, a helmet with a detachable jaw, or a convertible helmet with a rotatable jaw that can be fixed to the back of the head.

Description of Reference Numerals

[0075] 11… Aperture for vision 13… Shield 14… Front lower region 16… Defroster 20… Air outlet 21… Outer wall member 21a… Upper edge 22… Inner wall member 23… Base 24… Shutter 25… Mesh member 26… Accommodation part 27… Insertion opening 31… Concave part for component arrangement 33… Central aperture 34… Inlet for outside air flow 34a… Inlet for outside air flow 36… First accommodation recess 36a… Bottom surface part 37… Rib 39… Mounting hole 41… Second accommodation recess 41a… Bottom surface part 41b… Lower wall part 42… Groove part 43… Protrusion 44… Lower protruding piece 46a~46d… Stopper 51… Mesh part 52… Reinforcing wall part 52a… Outer end reinforcing wall part 52b… Inner end reinforcing wall part 52c… Inner reinforcing wall part 52d… Central reinforcing wall part 53… Connecting wall part 53a… Pressing contact part 54… Engaging claw 55… Flow path 56… Communication part 57a to 57d... regulating film 61... guide piece 62... guide hole 64... blocking part 65... operating part 66... engaging piece

Claims

1. A cap body having a viewing opening in the front, A shield attached to the cap body so as to be able to open and close the viewing opening, An outside air inflow mechanism for blowing air against the inner surface of the shield in a closed state closing the viewing opening, and comprising: The outside air inflow mechanism includes a housing portion formed inside the cap body, and a mesh member detachably housed in the housing portion. The housing portion includes an outer wall member having an outside air inlet connecting the inside and outside, an inner wall member positioned opposite to the outer wall member, a detachable opening for attaching and detaching the mesh member, and a blower opening for blowing air inhaled from the outside air inlet against the inner surface of the shield in the closed state. The mesh member includes a mesh portion facing the outside air inlet in a housed state housed in the housing portion. The detachable opening and the blower opening are the same opening. A helmet.

2. In the housed state, the mesh portion is pressed against the inner surface of the outer wall member. The helmet according to claim 1.

3. The mesh member includes a plurality of reinforcing wall portions spaced apart from each other. Each of the reinforcing wall portions is a wall extending in a first direction which is the direction of the blower opening in the housed state, on a surface of the mesh portion facing the inner wall member. The helmet according to claim 1 or 2.

4. The mesh member includes a connecting wall portion connecting the plurality of reinforcing wall portions in a second direction intersecting the first direction. The helmet according to claim 3.

5. At least some of the plurality of reinforcing wall portions are provided with engaging claws engaging with an edge portion constituting the detachable opening. The helmet according to claim 3.

6. In the housed state, the mesh member is provided with pressing portions pressed against the inner wall member at both ends of the connecting wall portion in the second direction. The helmet according to claim 4.

7. The housing portion includes a stopper for restricting the mesh member from entering the housing portion too much. The mesh member is provided with a regulating piece whose tip abuts against the stopper when inserted into the housing portion. The helmet according to claim 1 or 2.

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