Full-face type helmet

Abstract: There is provided a full-face type helmet (A) in which the breathing of a helmet wearing person accumulated between the helmet wearing person and the inner surface of the shell (1) and flowed toward both right and left cheek pads (4,4') is guided efficiently from the lower portion of the helmet (A) in a slant rearward direction and released out of the helmet (A) without reducing an original holding function of the cheek pads (4,4') contributing to the helmet wearing comfortable feeling, resulting in that the breathing is not accumulated in the helmet space at the front area of the face of helmet wearing person. A guide passage (B) for releasing the breathing of the helmet wearing person reflected by the chin guard (2') arranged inside the shell (1) and accumulated between the helmet wearing person and the inner surface of the shell from the lower part of the shell in a slant rearward direction is formed by crushing and deforming the intermediate part of the cushion member (6) constituting the installing members in its thickness direction or by cutting the cushion member (6) without reducing the abutted area with the cheeks at the cheek installing members and the cheek holding function.

Description: 1. Field of the Invention This invention relates to a full-face type helmet which a driver wears to protect the head or the face of the driver when the driver rides on various kinds of motorized vehicles such as a motorcycle, automobile or other vehicle. 2. Description of the Prior Art The comfort of a full-face type helmet is maintained by a repelling action of a shock absorbing liner constituted by expanded polystine stylofoam and a cushion member comprised of urethane material. The cushion member is adhered to and fixed to the inner side of the shock absorbing liner at the location corresponding to the head of the driver or at the locations from the ears to the cheeks and the chin part. In particular, there are cushions arranged at both right and left sides of the shell for pressing the locations from the cheeks to the chin. That is to say, the cheek pads contribute to the fitting of the full-face type helmet. However, as a full-face type helmet is formed with an integral chin guard at the lower front portion of the shell and the liner made of expanded polystine stylofoam is fixed to the inner side of the chin guard, the breath (hot air) of a helmet wearing person is reflected by the liner at the chin guard, and strikes the front ends of the cheek pads near the mouth of the wearer, and this results in that the hot air accumulates between the chin guard and the face of the helmet wearer. There can be a tendency for this hot air to result in moisture in the helmet shield. European Patent Application No 0346608 and International Patent Application No WO/90/05464 both disclose full-face type helmets, but neither deals with the problem of collection of moisture on the inner surface of the helmet shield as a result of collection of the wearer's breath in the front of the helmet. The European application discloses removable cheek pads, whilst the International application is concerned with providing cheek pads for the purpose of absorbing impacts so that such impacts will not be transmitted through the chin guard to the skull. A means for preventing the breath of the helmet wearing person from accumulating as mentioned the breath of the wearer may be to reduce and cut the front side of the cushion member of the cheek pads arranged at both right and left sides in the shell. However, as the function of the cheek pads as to support the chin part, reducing and cutting the cheek pads damages this function reduces helmet comfort. The present invention seeks to overcome the aforesaid problems found in the prior art and it is an object of the present invention to provide a full-face type helmet in which the breath of the helmet wearer is guided in an efficient manner from the lower part of the helmet in a slant rearward direction and released out of the helmet without reducing the holding function of the cheek pads and comfort of the helmet, whereby the wearer's breath is not accumulated in the space at the front part of the helmet. According to the present invention there is provided a full face type helmet comprising a shell, a shock absorbing liner inside the shell and cheek pads fixed co-operatively inside the shell with the shock absorbing liner wherein, each cheek pad comprises a cushion member and a base member, characterised in that the cushion member and base member are laminated and adhered except for an area at the lower front portion of the cheek pad where the front lower portion of said cushion member is set to be away from the base member so as to create an air passage whilst not to reducing the area of abutment between the user's cheek and the pad, and whereby the breath of the user is reflected by the chin guard then exhausted through the passage to the lower portion of the shell in a slanting rearward direction. Embodiments of the present invention will now be described by way of example, with reference to the accompanying drawings, wherein:- Fig. 1 is a side elevational view with a part broken away of a full-face type helmet to illustrate of the present invention. Fig. 2 is a bottom view of Fig. 1. Fig. 3 is a perspective view of a helmet cheek pad with a part cut away to show a first preferred embodiment of the present invention. Fig. 4 is a perspective view of a cheek pad shown in Fig. 3 as seen from its opposite side. Fig. 5 is a perspective view of a helmet cheek pad showing a second embodiment of the present invention. Fig. 6 is a perspective view of a helmet cheek pad with a part cut away showing a third embodiment of the present invention. Fig. 7 is an enlarged sectional view of part of the pad shown in Fig. 6. Fig. 8 is a perspective view of a helmet cheek pad with a part cut away showing a forth embodiment of the present invention. Fig. 9 is an exploded perspective view of the cheek pad shown in Fig. 8. Fig. 10 is a perspective view of a helmet cheek pad with a part cut away showing a fifth embodiment of the present invention. Fig. 11 is a perspective view of the pad of Fig. 10 before the cap is applied. Fig. 12 is a perspective view of a helmet cheek pad showing a sixth embodiment of the present invention. Fig. 13 is also a bottom view of the pad of Fig. 12 with a part cut away. DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings, some preferred embodiments of the present invention will be described. Figs. 1 and 2 illustrate a full-face type helmet A provided with left and right cheek pads removably installed with respect to the shell. Reference numeral 1 denotes the shell, of well-known shape, and made of fiber reinforced resin and shaped to fit the head of the wearer. Inside the shell is a shock absorbing liner 2 made of expanded polystine stylofoam or material having the same or more shock absorbing performance as or than that of expanded polystine stylofoam. The liner 2 lies and is fixed along an inside part of the shell including the top of the head and a chin guard 2' is fitted and fixed to a segment ranging from the chin part at the lower section of the shell 1 to locations at the right and left cheeks. Also, an installing member 3 is fixed to the inside surface of the shock absorbing liner 2. The chin guard 2' is made of expanded polystine stylofoam or material having the same or more shock absorbing performance as or than that of expanded polystine stylofoam. The surface part of the chin guard 2' contacted with the chin may be of leather, synthetic leather or the like. The shock absorbing liner 2 and the chin guard 2' are integrally connected and fixed to the shell by adhesive agent, and concave segments have cheek pads 4, 4' fitted and installed in the shell between the shock absorbing liner 2 and the chin guard 2'. As seen in Fig. 3, the cheek pads 4, 4' are each composed of a base member 5 (made of material similar to that of the shock absorbing liner) a cushion member 6 made of urethane or the like laminated and adhered to an inside part of the base member 5 and an outer cover 7 for covering the base member 5 and the cushion member 6. The front end and the rear end of the cheek pads 4, 4 are provided with an engaging means (not shown) removably engaging with and holding the cheek pads between the shock absorbing liner 2 and the chin guard 2'. The cushion member 6 is adhered and fixed to the base member 5 except that it is made such that its front lower part (a substantial triangular corner part including a lower corner section) near the mouth of the wearer is not adhered against the base member 5. Also, at the front lower corner part of base member 5, the outer cover 7 is provided with a through-pass hole 8 through which the corner part of the base member 5 projects. The outer cover 7 is applied to the base member 5 so that it is in tension toward the center of the base member 5, whereby at the through-pass hole 8, a tension force is applied with the result that the non-adhered portion of the cushion member 6 is crushed and deformed and a substantial triangular cone shaped guide passage B is formed between the inner surface of the cushion member 6 abutting against the cheeks and the chin and the base member 5. That is, the guide passage B is defined and formed from the front lower part of the cheek pads 4, 4' toward the rear lower portions of them. To apply tension to the outer cover 7, as shown in Fig. 4, a rubber ring 9 having a sufficient extending or shrinking characteristic is fixed to an opening in the outer cover 7. The outer cover 7 is formed in a bag shape as shown in Fig. 4 and the tension is applied by the shrinking force of the rubber ring 9. In the embodiment of Fig. 5, at a predetermined location, the base member 5 is provided with a hook 10 to which the outer cover 7 is applied, whereby the tension applied in an upwards direction is increased. In the embodiment of Figs. 6 and 7 a reinforcing plate 11 such as a synthetic resin plate having a less amount of extending or shrinking characteristic is adhered to and fixed to the peeled-off portion of the cushion member 6 so as to adapt for shrinkage and warping of the cushion member 6, whereby the function of the cheek pads to push against the chin and the cheeks is maintained. Although the described embodiments tension is applied to an outer cover of the cheek pad to form the guide passage B, Figs. 8 and 9 illustrate one example in which the guide passage B is formed without applying any tension to the outer cover. In this embodiment a soft curved molded plate 12 having a certain elasticity is arranged at the non-adhered portions in the cheek pads 4, 4'. Its partial surface 12b is adhered to and fixed to the base member 5 and then the non-adhered portion of the cushion member 6 is held away from the base member 5 at the location where the curved molded plate 12 is sprung up, whereby the guide passage B is formed. Figs. 10 and 11 illustrate another example in which the guide passage B is formed without being dependent on the tension force of the outer cover 7. In this embodiment a cap 13 made of synthetic resin and is integrally provided with a molded plate 14 the plate is abutted against the non-adhered part of the cushion member 6 to cause the non-adhered part of the cushion member to be forcedly pushed away from the base member 5 when the cap 13 is applied to cover the base member 5 at the non-adhered locations of the cushion member 6 and the base member 5. In this case, although the cap 13 provided with the molded plate 14 is applied from above the outer cover 7 to the corner part at the front lower portion of the base member 5 and it may be crushed together with the cover, it may be applied before the outer cover 7 is applied, to cause the corresponding portion of the cushion member 6 to be forcedly pushed up away from the base member and the outer cover 7 is applied over the corresponding portion. In this case, the corresponding location of the outer cover 7 is provided with an opening into which the corner part of the front lower portion of the base member 5, covered with the cap 13, fits. The cap 13 in this case is of a soft synthetic resin molded product so as to push the cushion member 6 away from the base member 5 but has sufficient elasticity so as not to damage the person wearing this helmet. In each of the aforesaid preferred embodiments the cheek pads are removably set in the shell. However, the guide passage formed at the cheek pads in the present invention can be employed are adhered to and fixed to the right and left integral type chin guards 2' with the cushion members pushing against the chin part being formed of expanded polystine stylofoam or the like. Such an embodiment is shown in Figs. 12 and 13, wherein the cheek installing members 18, 18 (cheek pads) are constructed such that a cushion member 15 is laminated and adhered to the right and left inner predetermined locations of the chin guard 2 formed by expanded polystine stylofoam. The guard 2' has a substantial U-shape as seen in its top plan view. The cushion member 15 and the chin guard 2 are formed to be covered by the cover 16. The front lower part in the cushion member 15 is not adhered to the chin guard 2', and a soft molded plate 17 having a certain elasticity is sewn to the inner surface of the cover 16 to lie on the non-adhered portion of the cushion member 15, when it is covered by the cover 16. Thereby, the front lower parts of the cheek installing members 18, 18 at the cushion member 15 are crushed by the molded plate 17 and then a substantial V-shaped guide passage B' providing the same function as passage B in the other embodiment is defined and formed. With the embodiments described above, since the cheek pads 4, 4' (or the cheek installing members 18, 18) are formed, at their front lower portions, with either the guide passages B or B' directed in slant rearward and downward direction, the breath of the wearer flowing toward the cheek pads 4, 4' (or the cheek installing members 18, 16') arranged at both rear right and left sides of the chin guard passes through either the guide passage B or B' and is discharged from the lower portion of the helmet out of the helmet. Accordingly, the breath of the helmet wearer is not accumulated in the helmet space in front of the face of the wearer, resulting in that the inner surface of the helmet shield at the front surface of the helmet is prevented from collecting moisture. In addition, since the guide passage is made by a crush deformation or a cutting of the intermediate part of the cheek pad or the cushion member for the cheek installing members in its thickness direction and its surface area abutting against the cheeks and the chin is kept as it is, the original function to hold the cheeks and the chin provided by the cheek pads or the cheek installing members is not damaged at all and a comfortable wearing feeling of the helmet can be assured. Means for forming the guide passage in the cheek installing member (the cheek pad) in the present invention other than means for applying the cap having the molded plate to the base member to form the guide passage can be employed where the cheek installing members (the cheek pads) are removably set in respect to the shell and where the cheek installing members are fixed to the shell. In the full-face type helmet according to the present invention, it is possible to pass the breath of the helmet wearer flowing toward the cheek pads arranged at both rear right and left sides of the chin guard or toward the cheek installing members through the guide passage and discharge it out of the helmet from its lower part. Accordingly, the breath of the helmet wearer is prevented from being accumulated in the space at the front part of the face in the helmet, resulting in that it is possible to prevent the inner surface of the helmet shield arranged at the front of the helmet from collecting moisture from the breath of the helmet wearer. In addition, the aforesaid effect can be accomplished by a quite simple structure under the configuration according to the present invention. Further, various embodiments of the present invention enable the crush deformation and pushing-up of the cushion member to be carried out effectively and the guide passage can be formed in an acute angle contoured manner. Having described specific preferred embodiments of the invention with reference to the accompanying drawings, it will be appreciated that the present invention is not limited to those precise embodiments, and that various changes and modifications can be effected therein by one of ordinary skill in the art without departing from the scope of the invention as defined by the appended claims.

Claims: A full face type helmet (A) comprising a shell (1), a shock absorbing liner (2) inside the shell (1) and cheek pads (4, 4') fixed co-operatively inside the shell (1) with the shock absorbing liner (2) wherein, each cheek pad (4, 4') comprises a cushion member (6) and a base member (5), characterised in that the cushion member (6) and base member (5) are laminated and adhered except for an area at the lower front portion of the cheek pad (4, 4') where the front lower portion of said cushion member (6) is set to be away from the base member (5) so as to create an air passage (B) whilst not to reducing the area of abutment between the user's cheek and the pad (4, 4'), and whereby the breath of the user is reflected by the chin guard (2') then exhausted through the passage (B) to the lower portion of the shell (1) in a slanting rearward direction. A full-face type helmet according to Claim 1, wherein in relation to each cheek pad (4, 4') there is a soft plate member (11) of less extension or shrinkage than the cushion member (6) fixed inside an outer cover (7) at the non-adhered portion of the cushion member (6), the base member (5) and the cushion member (6) being covered by the outer cover (7), and the outer cover (7) being fixed to the base member (5) so that the non-adhered portion of the cushion member (5) is crushed and deformed by said plate member (11). A full-face type helmet according to claim 1, wherein in relation to each cheek pad (4, 4'), to define said passage (B) there is a soft curved moulded plate (12) having a relative high elasticity arranged at the non-adhered location of the front lower portion of the cushion member (6), a part (12b) of said plate (12) being adhered to and fixed to the base member (5). A full-face type helmet according to claim 1, wherein in relation to each cheek pad (4, 4'), to define said passage (B) there is a cap (13) applied to the base member (5) and integrally provided with a moulded plate (14) abutted against the non-adhered portion of the cushion member (16), said plate (14) extending in a direction moving away from the base member (5), and being applied to the base member at that location.

Inventors: ARAI MICHIO, ARAI, MICHIO, Arai, Michio c/o Arai Helmet Ltd.
Applicants: ARAI HELMET LTD, ARAI HELMET LIMITED
Application year: 1999
Main classification: A42B3
IPC codes: A42B3