JP2019085663A - helmet - Google Patents

Abstract

To control a generation of a wind noise during running and improve a design of a helmet, while securing a ventilation function of the helmet.SOLUTION: There is provided a helmet A including: one or more ventilation paths 2 disposed in a shock absorbing liner laminated on an inner circumferential surface side of a cap body; one or more intake paths 3 disposed only on the shock absorbing liner in the way of the ventilation paths; and a ventilation part 1 including an exhaust part 4 disposed on the back of a head and connected to the ventilation paths, in which an exhaust port of the exhaust part is distributed at two locations on the left and right at a center line along a longitudinal direction of the helmet, and is disposed on a separation point of an air flow flowing along an outer peripheral surface of the cap body.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a helmet having a ventilation structure for ventilating the inside of the helmet.

  The helmet having a ventilating structure for ventilating the inside of the helmet, as described in Patent Document 1 and Patent Document 2 below, arranges an air inlet in communication with the inside of the helmet in front of the helmet and It is known to arrange an exhaust port communicating with the inside.

  The above-mentioned ventilation structure can be ventilated by using the negative pressure of the traveling wind to exhaust the hot air trapped in the helmet from the exhaust port and taking the outside air into the helmet from the air intake port.

Japanese Utility Model Publication No. 62-110231 Japanese Utility Model Application Publication No. 64-30322

However, the ventilation structures of the helmets described in Patent Documents 1 and 2 both have an inlet and an outlet opened on the outer peripheral surface of the cap constituting the outer layer of the helmet, and an opening and closing member for opening and closing the inlet. The presence of the exhaust port (patent document 1) by the plurality of openings, the uneven portion in the vicinity of the exhaust port (patent document 2), and the like causes unevenness visible on the outer peripheral surface of the helmet.
The generation of wind noise during running due to the unevenness and the reduction in design of the helmet have occurred.

  Therefore, after securing a ventilation function, development of a helmet capable of suppressing the generation of wind noise during running and improving the design of the helmet has been desired.

  In order to solve the above-mentioned subject, the helmet of the present invention adopted the following means.

  A helmet having a ventilating unit, the ventilating unit comprising: an air passage disposed in a shock absorbing liner laminated on the inner circumferential surface side of the cap body; an air intake passage disposed in the passage of the air passage; And an exhaust part connected to the air passage, the at least one air passage being disposed along the longitudinal direction of the helmet and extending to the lower end side of the occipital region, The front end of the air passage is closed on the front side of the air intake passage disposed at the foremost part of the air passage, and the rear end of the air passage is connected to the exhaust portion. The air intake passage is provided only in the shock absorbing liner, and one or more air passages are formed to extend from the air passage to the inner space of the shock absorbing liner, and the exhaust portion is connected to the connection port. Communicating with an exhaust part side connection port and the exhaust part side connection port, The helmet has two exhaust ports divided to the left and right at the center line along the longitudinal direction of the helmet, and the exhaust ports are disposed on the separation point of the air flow flowing along the outer peripheral surface of the cap body. The helmet is characterized by

  Preferably, one of the vents is disposed along the centerline of the helmet.

  The air passage can be exemplified by a configuration in which an open portion along the groove direction of the air passage groove recessed along the entire area of the air passage in the shock absorbing liner is closed with a sheet.

  Moreover, the structure which hollowed out and provided the inside of the said impact-absorbing liner can be illustrated as another structure of the said ventilation path.

  It is preferable that the opening axes of the two exhaust ports intersect with each other on the center line and be inclined in a direction away from the intersection point of the opening axes with respect to the center line in the left-right direction.

It is a center longitudinal cross-sectional view of the helmet of 1st Embodiment which concerns on this invention. It is a (II) arrow line view of FIG. 1, and cuts and shows a principal part. It is a (III) arrow line view of FIG. 1, and shows the flow of the air of the ventilation state. It is a center longitudinal cross-sectional view of the helmet of 2nd Embodiment which concerns on this invention.

  Hereinafter, a helmet A according to a first embodiment of the present invention will be described based on FIGS. 1 to 3. The helmet A illustrated in the present embodiment is a full face helmet provided with a front opening A10 in which a portion other than the jaws of the wearer's face is exposed, but in the present invention, all of the wearer's face is exposed. Includes a type of open face helmet.

  In the following description, the front opening A10 is referred to as the front, and the back of the helmet A facing the front opening A10 is referred to as the back. Further, a direction orthogonal to the front-rear direction in the plane direction is referred to as the left-right direction, and a direction perpendicular to the front-rear direction or the left-right direction is referred to as the up-down direction.

  The helmet A is disposed on a hat body A1, an impact absorbing liner A2 stacked on the inner circumferential surface A12 side of the hat body A1, an inner circumferential surface A20 of the impact absorbing liner A2 and an inner circumferential surface A12 of the hat A1. The vehicle includes an interior body A3, a shield A4 for opening and closing the front opening A10, and a ventilation unit 1.

  The cap body A1 constitutes the outermost layer of the helmet A, and is reinforced by impregnating a reinforcing fiber material (glass fiber, carbon fiber, etc.) with a thermosetting resin material (epoxy resin material, phenol resin material, etc.) It is molded into a full-face helmet shape using a fiber resin material (GFRP, CFRP, etc.) or a thermoplastic resin material (polycarbonate, etc.).

  The shock absorbing liner A2 is formed in a predetermined shape by using a material having shock absorbing performance (for example, a expanded polystyrene material) or a material having the same shock absorbing performance as this material.

  The interior body A3 includes a head interior body A30 and a cheek interior body A31 having a cushioning property, and the head interior body A30 is disposed on the inner peripheral surface A20 of the impact absorbing liner A2, and the cheek interior body A31 It is disposed on the left and right cheeks of the inner peripheral surface A12 of the helmet body 1.

  As shown in FIGS. 1 and 3, the head inner body A30 is an impact-absorbing liner in the inner space S of the helmet A in the range from the vicinity of the forehead A13 of the helmet A to the vicinity of the occiput A11 The air flow path R along the inner peripheral surface A20 of A2 is secured.

  As shown in FIG. 3, the air flow passage R is disposed on the forehead side along the central flow passage R1 along the center line CL along the longitudinal direction of the helmet A, and the forehead side with respect to the central flow passage R1. And a rear flow passage R3 disposed on the occipital side with respect to the central flow passage R1 and disposed on the left and right sides of the central flow passage R1; A communication flow path R4 in communication with the rear flow path R3 is provided, and all the flow paths are formed to be in communication with each other.

  The shield A4 is formed in a predetermined shape using a thermoplastic resin material (polycarbonate or the like) having transparency or color transparency and elasticity, and is pivotally supported on the left and right sides of the cap body A1.

  The ventilation unit 1 ventilates the hot air staying in the inner space S of the helmet A, and includes an air passage 2 disposed in the shock absorbing liner A2, an air intake passage 3 disposed in the air passage 2, and an air passage. And an exhaust unit 4 connected to the second.

  As shown in FIGS. 1 to 3, the ventilation unit 1 causes the negative pressure due to the traveling wind during traveling to act on the exhaust unit 4, and the air in the air passage 2 is drawn from the exhaust unit 4 to make Hot air trapped in the air flow passage R can be taken in from the intake unit 3 while flowing through the air flow passage R, and can be exhausted from the exhaust unit 4 through the air passage 2.

  The air passage 2 is formed as a hollow hole whose front side is closed, and the opening on the rear end side is the connection port 20, and the axis is on the center line CL, and the closed side is near the forehead of the helmet A. The connection port 20 reaching the lower end A15 on the occipital region A11 side is arranged so as to be viewed from the lower end A15.

  The air passage 2 is formed by covering the entire area of the open portion 21A along the groove direction of the air passage groove 21 recessed along the entire area of the air passage 2 with the outer peripheral surface A21 of the shock absorbing liner A2 with the sheet 22. It is formed as an air passage 2 which is a hollow hole closed on the front side.

  The sheet body 22 is made of an extremely thin synthetic resin material which can be interposed in a slight gap between the inner peripheral surface A12 of the cap body A1 and the outer peripheral surface A21 of the shock absorbing liner A2, and is shown in FIGS. Thus, the vent groove 21 has a length and a width enough to close the entire open portion 21A, and the open portion 21A is closed and adhered to the outer peripheral surface A21 around the open portion 21A. There is.

  The intake passage 3 is formed to penetrate the shock absorption liner A2 from the bottom portion 21B of the ventilation groove 21 to reach the inner peripheral surface A20, and along the center line CL, the forehead A13 side, the crown portion A14 side, The intake passage 3 on the forehead side is provided in three places on the side of the occipital region A11, the intake passage 3 on the forehead side is in the front passage R2, the intake passage 3 on the top of the head is in the central passage R1, and the intake passage 3 on the back Each of the rear flow passages R3 is made to be desired.

  When the hot air of the air flow path R is taken into the intake path 3 arranged in this way, the hot air of the air flow path R flows through the respective flow paths by the suction force at the time of intake, and the intake air arranged in each flow path It is taken into the road 3.

  The exhaust unit 4 communicates with the exhaust unit side connection port 40 connected to the connection port 20 and the exhaust unit side connection port 40, and is divided into two exhaust lines that are symmetrical with respect to the center line CL. It is molded in the shape of a duct made of a soft synthetic resin material having ports 41L and 41R, and a communication passage 42 communicating the exhaust part side connection port 40 and the exhaust ports 41L and 41R, It is attached so as to face the lower end A15.

  As shown in FIG. 3, the exhaust unit 4 is formed in an arc shape along the arc of the lower end portion A 15, and the exhaust ports 41 L and 41 R are provided near the left and right end portions on the outer periphery of the arc. The exhaust portion side connection port 40 is provided at the left and right center of the.

  Attaching pieces 44, 45 for attaching to the helmet A are projected over the entire area of the inner peripheral edge and the outer peripheral edge of the upper surface 43 of the exhaust part 4, and the inner peripheral side mounting piece 44 is made of the shock absorbing liner A2. While adhering to the inner peripheral surface A20, the attachment piece 45 on the outer peripheral edge side is adhered to the outer peripheral surface A21 of the impact absorbing liner A2, and the upper surface 43 is adhered to the lower end portion A15 to prevent air from being released during exhausting. In the state, the exhaust unit 4 can be attached to the helmet A.

  The exhaust part side connection port 40 is opened at the upper end of the fitting projection 46 provided on the upper surface 43 of the exhaust part 4 so as to fit the fitting projection 46 into the connection port 20. It can be placed in the normal position.

  The positions of the exhaust ports 41L and 41R are provided at positions symmetrical with respect to the exhaust port side connection port 40 as shown in FIG. 3, and when the exhaust section 4 is attached, the fitting projections 45 are used. By fitting the connection port 20, the exhaust ports 41L and 41R can be distributed so as to be symmetrical with respect to the center line CL.

  Further, as shown in FIG. 3, the exhaust ports 41L and 41R are on the peeling point P1 of the air flow flowing along the outer peripheral surface A16 of the side portion of the cap body A1 in a state of being normally attached to the helmet A. It is positioned so that it can be exhausted so as to draw hot air efficiently by the negative pressure when the air flow peels off at the peeling point P1.

  Further, the opening axes AX of the exhaust ports 41L and 41R intersect with each other on the center line CL, and are inclined in a direction away from the intersection P2 of the opening axes AX with respect to the center line CL in the left and right direction. The opening axis AX is set as an angle orthogonal to the lower end of the cap body A1 passing through.

  The positions of the exhaust ports 41L and 41R are positions close to the shoulders (not shown) of the wearer and close to the air flow passing between the shoulders and the lower end A15.

  That is, the exhaust ports 41L and 41R are opened along the air flow flowing along the outer peripheral surface A16 of the side portion of the cap A1, and at a position close to the air flow passing between the aforementioned shoulder and the lower end A15. The flow path can be narrowed under the influence of the shoulder of the wearer, and the negative pressure due to the increased air flow can be efficiently applied.

  According to the helmet A configured as described above, the heat air trapped in the helmet A can be efficiently ventilated without providing an air vent, an exhaust vent, a shutter, etc. on the side of the cap body A1, and by the unevenness Wind noise can be suppressed, and the design of the helmet A can be improved.

  Next, a helmet B according to a second embodiment of the present invention will be described based on FIG. In addition, the description about the part which overlaps with the helmet A of 1st Embodiment is abbreviate | omitted by attaching | subjecting a same sign.

  In the ventilation unit 5 of the helmet B, the ventilation passage 2 is formed as a hollow hole whose front side is closed by hollowing out the inside of the shock absorbing liner A2 from the lower end portion A15.

  The same effect as the helmet A of the first embodiment can be obtained also by the helmet B having such a ventilation unit 5, and the sheet 22 constituting the air passage 2 of the ventilation unit 1 of the first embodiment can be obtained. It can be unnecessary.

  Although the ventilation parts 1 and 5 of the above-mentioned embodiment are considered as composition provided in shock absorption liner A2 at one place, in the present invention, composition provided with a plurality of ventilation parts 1 and 5 is also included (not shown) .

  The ventilation passage 2 of the ventilation unit 1 of the first embodiment has a configuration in which the ventilation groove 21 is provided on the outer peripheral surface of the shock absorbing liner A2, but in the present invention, the ventilation groove 21 is formed on the inner peripheral surface of the shock absorbing liner A2. The configuration provided is also included (not shown)

  As mentioned above, although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the design change within the scope of the present invention is not limited. The present invention is included in the present invention.

  In addition, the respective embodiments described above can be combined with each other by using the techniques of each other as long as there is no contradiction or problem particularly in the purpose, the configuration, and the like.

A: helmet B: helmet A1: cap body A2: shock absorption liner A11: back surface A12: inner circumferential surface A15: lower end A16: outer circumferential surface A20: inner circumferential surface S: inner space 1: ventilation section 5: ventilation section 2: Air passage 3: Intake passage 4: Exhaust part 20: Connection port 21: Air flow groove 21A: Open part 22: Sheet 40: Exhaust part side connection port 41L: Exhaust port 41R: Exhaust port CL: Center line AX: Opening axis P1 : Peeling point P2: Intersection point

Claims (5)

A helmet equipped with a ventilation unit,
The ventilating unit includes an air passage disposed in the shock absorbing liner laminated on the inner peripheral surface side of the cap body, an air intake passage disposed in the passage of the air passage, and an exhaust portion connected to the air passage. Equipped with
The air passage has one or more vents and is disposed to extend to the lower end side of the occipital region along the front-rear direction of the helmet, and is forward of the air intake passage disposed at the forefront of the air passage. The side is closed and the rear end of the air passage is formed as a connection port to be connected to the exhaust part, the connection port is desired on the lower end side,
The intake passage is provided only in the shock absorbing liner, and one or more intake passages are formed to extend from the air passage to the inner space of the shock absorbing liner.
The exhaust unit communicates with the exhaust unit side connection port connected to the connection port and the exhaust unit side connection port, and is divided into two places on the left and right along a center line along the longitudinal direction of the helmet. Equipped with an exhaust port,
The helmet according to claim 1, wherein the exhaust port is disposed on the separation point of the air flow flowing along the outer peripheral surface of the cap body.   The helmet according to claim 1, wherein one of the air passages is disposed along the center line of the helmet.   3. The sheet according to claim 1, wherein the air passage is formed by closing an open portion along a groove direction of a ventilation groove recessed along the entire area of the air passage in the shock absorbing liner. Description helmet.   The helmet according to claim 1 or 2, wherein the air passage is provided by hollowing out the inside of the shock absorbing liner.   The opening axes of the two exhaust ports intersect each other on the center line, and are inclined in a direction away from the intersection point of the opening axes with respect to the center line in the left-right direction. The helmet according to any one of Items 1 to 4.

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