Helmet

Abstract: There is provided a helmet having a superior making helmet comfortable and showing a superior wearing feeling. The soft plane-like member 4 (plate material, sheet material) having a less amount of extension or shrinkage and not damaging the helmet wearing person is adhered to the slant surface 34 of the protrusion 33 of the cushion member 32 projected from the shell installing surface of the cheek pads 3 at both sides of the shell 1, and the extension or shrinkage of the protrusion 33 is restricted to assure a desired strength at the protrusion 33, thereby the bending deformation of the protrusion 33 at the time of installation is restricted. The bending deformation of the protrusion 33 is restricted to cause the protrusion 33 to be tightly abutted against the cheeks and the chin of the helmet wearing person when the person wears the helmet.

Description: 1. Field of the Invention This invention relates to a helmet for use in protecting the head and the face of a driver of a motorized vehicle such as a motorcycle, automobile or other, and more particularly concerns an improvement of the cheek pads installed inside a shell of the helmet. 2. Description of the Prior Art The comfortable wearing of a helmet of the type to which the invention relates is maintained by the resilience of cushion member composed of urethane arranged inside a shock absorbing shell. The cushion members are constituted by expanded polystine stylofoam or the like and are fitted to and arranged on the shell or an inside part of the shell. The cushion members contribute to making the helmet comfortable, and provide a recovering force when the cheeks and chin are pressed against the cushion members. SUMMARY OF THE INVENTION There has been proposed in the gazette of Japanese Utility Model Laid-Open No. Sho 58-45325 an open face type helmet having a structure as serving to make the helmet comfortable. This helmet is made such that cushion members constituting the cheek pads are installed at both inner sides of the shell. Each cushion member has a cheek contact area wider than the shell cushion connecting area and therefore the cushion member projects the edges of the shell. Thereby, the projecting section of the cushion member serves to hold the chin to improve helmet comfort and provide a more positive feeling to the user when wearing the helmet. However, although the helmet as described above improves helmet comfort, the projection part of the cushion member is not provided with any supporting member for the shell, resulting in that the project part becomes curved and deformed as a result of use. The improvement in helmet comfort and support therefore lasts only a short time. This disadvantage may also apply to the full―face type helmet. The present invention is an improvement over the aforesaid prior art and it is an object of the present invention to provide a helmet which is not only more comfortable to wear but also provides improved support. A full face helmet for limitation of damage to the head of the user in the event of a crash is set forth in International Patent Application No. WO 90/05464. In that helmet, there is provided cheek engaging plates which serve to transfer impact on the chin protecting part of the helmet directly onto the user's chin and not onto the user's jaw, which is dangerous. There is no provision however, as in the present invention, of making the helmet more comfortable to wear and more resistant to loss of this comfort support as a result of use. In order to accomplish the aforesaid object, the present invention provides a helmet having a helmet shell and cheek pads installed on inside portions of respective side sections of the shell, which cheek pads serve to restrict the looseness of the helmet, each cheek pad comprising a cushion member with a portion at a front or lower section forming a protrusion which, at the side adjacent the shell, defines a slant surface inclined toward the surface of the adjacent inside portion, whereby the surfaces of the cheek pads for contact with the face of the user are larger than those supported on the inside portions of the shell, characterised in that each cheek pad has a soft plane-like member which is adhered to the slant surface and which has a less extension or shrinkage characteristic than the cushion member, whereby extension or shrinkage of the cushion members near the slant surfaces is restricted and a desired strength is also assured at said protrusions. Preferably, the plane-like members are soft moulded plates extending from the slant surfaces to the inside portions of the sides of the shell. The plane-like member may be either a plate material or a sheet material or the like of a thin raw material of such a strength as not to damage the user. It is formed in a desired shape. As deformation of the protrusions is restricted, the protrusions will be tightly abutted against the cheek portions and the chin portion of the user Since the plane-like member may provide, a spring force acting upon the protrusions with the result that the contact force of the protrusions against the cheek portions and the chin portion of the user is increased. As described above, the helmet according to the present invention is a helmet in which the face of the helmet wearing person can be held over a larger area than the restricted wearing area even if the area at the shell for supporting the cheek pads is restricted, and further the plane-like member (plate member, sheet member) or a molded plate increases the strength at the protrusions, resulting in that a helmet with a superior wear feeling is assured the helmet is comfortable and does not have the disadvantage of becoming loose. In addition, the plane-like member or the molded plate is made of soft raw material which will not damage the user as they are adhered to the slant surfaces of the protrusions, i.e. the outer surfaces. Additionally, as the plane-like member or the molded plate is adhered to the cushion member, the cheek pad can be manufactured at a low cost, namely at a substantial similar price to that of the prior art product. In addition, since the molded plate of embodiment of the helmet according to the present invention can be made such that a spring force is applied to the protrusions, the contact force of the protrusions against the cheek portions and the chin portion of the user, so that the comfort feeling of the helmet is high. The present invention provides a practical helmet in which a high safety characteristic is assured for the user by providing a quite superior stability and wearing characteristic. Further it can be made for a reasonable price. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing an open face type helmet in accordance with the present invention. Fig. 2 is a perspective view showing a cheek pad of the helmet of Fig. 1. Fig. 3 is a sectional view schematically illustrating the mounting of the cheek pad shown in Fig. 1 on the helmet shell. Fig. 4 is a sectional view schematically illustrating the mounting of an alternative cheek pad on the helmet shell. Fig. 5 is a side elevational view showing a fullf ace type helmet in accordance with another preferred embodiment of the invention. Fig. 6 is a bottom view of Fig. 5. Fig. 7 is a perspective view showing cheek pad of the helmet of Fig. 5. Fig. 8 is a perspective view showing an alternative cheek pad for use in the full-face type helmet of Fig. 5. DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings, some preferred embodiments of the present invention will be described. Figs. 1 to 3 illustrate a first preferred embodiment of an open face type helmet of the present invention. The open face type helmet A is of well-known form comprising a shock absorbing liner (not shown) made of expanded polystine stylofoam or raw material having the same or more shock absorbing performance, an inner liner 2 madeof urethane material arranged inside the shock absorbing liner and cheek pads 3, 3' arranged at both sides for engaging the cheek portions and the chin portion of the user. The cheek pads 3 3' are installed inside the shell 1. The shell is formed into a predetermined shape with fiber reinforced resin. The cheek pads 3, 3' are symmetrical, so only one, pad 3, will be described in detail. The cheek pad 3 has a substantial U-shape to define a space for the ear of the user. The pad comprises a U-shaped base member 31 and a U-shaped cushion member 32 made of urethane. The cushion member is laminated and adhered to the inner side of the base member 31. The cushion member 32 is of such softness and resiliency as not to cause any pain to the user. It has a cheek contacting area greater than side area adhered to the base member 31, and as shown in Fig. 3, there is formed a protrusion 33 having a sloping surface extending from the location of the end part of the base member 31, identified as slant surface 34. A plane-like member 4 providing strength to the protrusion 33 is adhered to the slant surface 34. In the following description, the plane-like member 4 is referred to as a plate member The plate member 4 is made of soft raw material having a lesser extension or shrinkage characteristic than the cushion member 32 and is of such strength as not damaging the helmet user. It has substantially the same area as that of the slant surface 34 of the protrusion 33 as shown in Fig. 2 and it is formed into such a shape so that it can be adhered to substantially the entire region of the slant surface 34. The plate member 4 made in this way is curved and deformed along the shape of the slant surface 34 and adhered to it, thereby the extension or shrinkage of the protrusion 33 is restricted, and a predetermined strength is assured for the protrusion 33 so as to restrict its bending deformation. Since the open face type helmet A shown in Fig. 1 is made such that the plate member 4 is adhered to restrict the bending deformation of the protrusion 33, the protrusion 33, when installed, can be tightly abutted against the cheek portions and the chin portion of the user. Referring to Fig. 4, a second preferred embodiment of the present invention is shown. In Fig. 4 a molded plate 5 is used in place of the plate member 4 in the Fig. 3 embodiment, and otherwise the same reference numerals as used in Fig. 3 are used in Fig. 4. The molded plate 5 inverse L shape and is adhered to the cheek pad 3 at the location extending from the adhering surface between the base member 31 and the cushion member 32 to the front end and the lower end of the slant surface 34. The molded plate 5 is made of soft raw material having such a strength as not to damage the user and into such a shape as one corresponding to the part positioned at the adhering side surface of the base member 31 in the cushion member 32 and one corresponding to the shape of the slant surface 34. The molded plate 5 formed in this way is adhered over its entire surface to the base member 31 and thereafter the cushion member 32 and the base member 31 are laminated and adhered to constitute the cheek pad 3. In this way, the extension or shrinkage of the protrusion 33 is restricted to ensure that it has a predetermined strength whereby its bending deformation is restricted. Accordingly, also in this preferred embodiment, the bending deformation of the protrusion 33 is restricted by the molded plate 5, so that the protrusion 33, when installed, can be tightly abutted against the cheek portions and the chin portion of the user. In addition, a force (a spring force) shrinking inward can be made to act on the protrusion 33 to prevent it from expanding outwardly by the cheek portions and the chin portion of the user, resulting in that the contact force of the protrusion 33 against the cheek portions and the chin portion of the user is increased. Figs. 5 to 7 illustrate a full―face type helmet B of a third preferred embodiment of the present invention. The full-face type helmet B is of well-known form and comprises a shock absorbing liner (not shown) made of expanded polystine stylofoam or raw material having the same or more shock absorbing performance, an inner liner 7 made of urethane material arranged inside the shock absorbing liner and cheek pads 8, 8' removably arranged at both sides. The check pads contact to the cheek portions and the chin portion of the user and they are installed inside the shell 6. The shell is formed into a predetermined shape and is of fiber reinforced resin. Fixing or removing of the cheek pads 8, 8' is a well―known operation and its detailed description is not given here. Also, as the cheek pads 8, 8' are symmetrical in lateral direction, only one, pad 8, will be described below. The cheek pad 8 is of a well―known full―face type helmet B, and comprises a base member 81 made of raw materials such as synthetic resin or expanded polystine stylofoam having a shock absorbing performance, and a cushion member 82 made of urethane laminated and adhered to the inner side of the base member 61. The cushion member 82 has such soft resiliency as not to cause any pain to the helmet user. It has a cheek contacting area wider than a side area adhered to the base member 81, and as shown in Fig. 7, it has a protrusion 83. The protrusion has a slanted surface 84 extending from the location corresponding, to the end part of the base member 81 to the front end and the lower end of the protrusion. A plate member 4' providing strength to the protrusion 83 is adhered to the slant surface 84. The plate member 4' is made of the same raw material as the plate member 4 of Fig. 3, it has substantially the same area as that of the slant surface 84 at the protrusion 83 as shown in Fig. 7. It is formed into such a shape as to be able to be adhered to substantially the entire region of the slant surface 84. The plate member 4 is curved and deformed to the shape of the slant surface 84 and is adhered to it, whereby the extension or shrinkage of the protrusion 83 is restricted, and a predetermined strength is added to the protrusion 83 so as to restrict its bending deformation. Thus, plate member 4 is adhered to restrict the bending deformation of the protrusion 83, similar actions and effects to those of the aforesaid open face type helmet A of the second preferred embodiment can be attained. Fig. 8, shows a fourth preferred embodiment of the present invention. This preferred embodiment is of a full―face type helmet B and as its basic form is similar to that of the embodiment of Fig. 7, only the cheek pad 8 will be described. This cheek pad 8 is made such that the molded plate 5 is of the same, material (as plate 4') and is shaped corresponding to the side surface of the base member 83. at the cushion member 82, and corresponding to the shape of the slant surface 84. It is adhered in the same manner as plate 5 over an area ranging from the adhering side surface of the base member 81 at the cushion member 82 to a part near the front end and the lower end of the slant surface 84, and restricts the extension or shrinkage of the protrusion 33. This ensures that the protrusion 33 has a predetermined strength and that its bending deformation is restricted. Accordingly, also in the case of the full-face type helmet B, the bending deformation of the protrusion 83 is restricted by the molded plate 5', 50 that the actions and effects similar to those of the open face type helmet A are attained. In the embodiments described, the cheek pads are removably attached to the shell. However, the invention is not limited on the system in which the pads are removably attached. The plate members 4, 4' and the molded plates 5, 5' can be employed also on the system in which the cheek pads are adhered to and fixed to the shell. Where fixed type cheek pads are used in the full-face type helmet these may be adhered and fixed at both locations corresponding to right and left cheeks of right and left integral base members and are integrally connected along a U-shape ranging from the location corresponding to one of the right and left cheeks of the shell to the location corresponding to the opposite cheek portion through the chin guard. 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 helmet having a helmet shell (1) and cheek pads (3) installed on inside portions (31) of respective side sections of the shell (1), which cheek pads (3) serve to restrict the looseness of the helmet, each cheek pad (3) comprising a cushion member (32) with a portion at a front or lower section forming a protrusion (33) which, at the side adjacent the shell (1), defines a slant surface (34) inclined toward the surface of the adjacent inside portion (31), whereby the surfaces of the cheek pads (3)for contact with the face of the user are larger than those supported on the inside portions (31) of the shell (1), characterised in that each cheek pad (3) has a soft plane-like member (4) which is adhered to the slant surface (34) and which has a less extension or shrinkage characteristic than the cushion member (32), whereby extension or shrinkage of the cushion members (32) near the slant surfaces (34) is restricted and a desired strength is also assured at said protrusions (33). A helmet according to claim 1, wherein the plane-like members are soft moulded plates extending from the slant surfaces to the inside portions of the sides of the shell.

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