JP2010209492A - Helmet, and protective film used for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a helmet contributing to safe driving by reducing an effect given by reflective light to a driver, and also while reducing glare by the light, allowing the face of the driver to be seen from a pedestrian side. <P>SOLUTION: A shield 13 attached to a helmet body 12 and covering an opening part 12a is formed of a polarizing plate 14 to cut the reflective light coming into the sight of the driver by a polarizing filter function of the shield 13. Alternatively, by pasting a protective film formed by a polarizing plate on the outer surface of ordinary shield not having the polarizing filter characteristic, the shield is given to have the polarizing filter characteristic, or by pasting the protective films of laminated type obtained by laminating a plurality of peelable films as peelable with each other on a film base formed by the polarizing plate on the outer surface of the shield, the polarizing filter characteristic is given to the shield. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a helmet worn by a driver of a vehicle such as a motorcycle or a four-wheeled vehicle, and a protective film attached to a shield thereof.

  Wearing a helmet is mandatory in Japan when riding a motorcycle. This is to protect the driver's head in an accident or the like. Various configurations are known for such helmets. For example, when running at a relatively low speed, a helmet without a hood is often used. On the other hand, when traveling at high speed, a helmet with a shield is worn. For example, when used in a race or the like. Such a helmet is said to be a jet helmet that protects the left and right cheeks including the head inside. Such a jet helmet cannot basically protect the chin. One thing that can protect your chin is a full-face helmet. The protection of the head or the like inside the helmet is performed by changing the thickness of the sponge or the like of the insertion material as appropriate. Here, the shield provided in the helmet may be called a screen, a shield screen, or a visor, for example.

  Shields provided in such helmets have been transparent in the past, but since they are exposed to direct sunlight, many of them are currently colored smoke, amber, etc. as in the helmet described in Patent Document 1, for example. It is used.

JP 2001-20121 A (page 3)

  However, due to the coloring of the shield, for example, there is a problem that a pedestrian who tries to cross an intersection cannot find a trend of a motorcycle driver. This is because the face of the driver cannot be seen from the pedestrian side by coloring the shield. In other words, a pedestrian thinks that a motorcycle driver is looking at you and begins to cross the road, but the driver is not actually looking. In order to avoid such problems due to the inability to see the face, it is prohibited to put colored films on the driver's seat, front passenger seat and front glass in the four-wheeled vehicle.

  On the other hand, since the reflected light is polarized light, even if the shield is colored, the “glare” and “dazzle” may not be sufficiently reduced. In particular, in the case of a motorcycle, the driver's face is about 40 ° downward and the upper eyes are used for a four-wheeled vehicle in which the driver's face is almost vertical during driving. It is sensitively received.

  For example, when driving near another vehicle, a motorcycle driver receives reflected light from the glass, bumper, body, or the like of an oncoming vehicle or a preceding vehicle. Even when the vehicle is traveling alone, it receives light reflected from the lawn and the leaves on the side of the road, the center line of the road surface, the road shoulder line, and the zebra. Furthermore, when entering the tunnel, the reflected light from the road surface suddenly decreases and the field of view becomes dark for a moment. On the other hand, when exiting the tunnel, the reflected light from the road surface suddenly increases and the field of view becomes white for a moment. Therefore, the visibility of the driver's obstacles before and after the entry / exit is lowered.

  Due to the influence of such reflected light, the following problems occur in the driver. For example, the driver's field of view is hindered by the “glare” and “dazzle” of the reflected light, which increases the driver's mental stress and distracts the concentration. Moreover, if the pattern of the reflected light by the reflection of the road surface or the repaired portion of the road surface is discontinuous, this becomes a mental stress on the driver. Further, even in places where the road surface color varies depending on the pavement, the reflected light becomes discontinuous due to the difference in color as well, which causes mental stress to the driver. Furthermore, the reflected light received by the driver varies depending on the lights and taillights of the oncoming vehicle and the vehicle ahead, as well as the light source, light quantity, and color light, which increases stress on the driver's visual acuity. When the driver uses spectacles, the line of sight goes to the upper part of the spectacles when looking far away, so that the reflected light directly enters the eyes and further increases the degree of fatigue. Thus, a motorcycle driver is often affected by light reflection with respect to a four-wheeled vehicle.

  If the stimulus by the reflected light is accumulated as stress on the driver, the driver's fatigue increases, which may hinder safe driving. Further, when driving at a high speed in a race or the like, a forward leaning posture is further required in relation to the driving wind, so that the influence becomes significant, and the influence of reflected light may hinder an appropriate driving operation.

  An object of the present invention is to provide a helmet that can reduce the influence of reflected light on a driver and contribute to safe driving.

  Another object of the present invention is to provide a helmet in which a driver's face can be seen from the pedestrian side while reducing glare caused by light.

  A helmet according to the present invention is a helmet including a helmet body provided with an opening for ensuring visibility, and a shield attached to the helmet body and covering the opening, wherein the shield is formed by a polarizing plate. It is characterized by being.

  The protective film of this invention is a protective film affixed on the outer surface of the shield which covers the opening part for visibility ensuring of a helmet, Comprising: It is formed with the polarizing plate, It is characterized by the above-mentioned.

  The protective film of the present invention is a protective film that is affixed to the outer surface of the shield that covers the opening for securing the visibility of the helmet, and is peeled from the base film formed by the polarizing plate and the one surface of the base film. And a plurality of peelable films that can be sequentially peeled off by a user, and is attached to the outer surface of the shield with the other surface of the base film facing the shield side. .

  According to the present invention, since the shield covering the opening of the helmet is formed by the polarizing plate, the reflected light facing the driver's line of sight is cut by the shield, and the glare or stress that the driver receives from the reflected light Can be reduced. In other words, since the reflected light does not enter the driver's line of sight due to the polarizing filter function of the polarizing plate, the nerves are not stimulated by the stress to notice glare, and the driver can concentrate on driving and can drive safely it can. In addition, by forming the shield with a polarizing plate, it is possible to reduce glare caused by light without coloring the shield, so the driver wearing a helmet from the pedestrian side while reducing glare caused by light. You can make your face visible. Thereby, the safety | security of both a pedestrian and a driver | operator can be improved.

  According to the present invention, since the protective film to be attached to the outer surface of the helmet shield is formed by the polarizing plate, the protective film provides a polarizing filter function to the shield and reflects the light toward the driver's line of sight. Can be cut. Thereby, the effect similar to the case where a shield is formed with a polarizing plate can be acquired. In addition, by forming the protective film with a polarizing plate, the protective film can be attached to the shield so that the existing helmet shield can be easily provided with a polarizing filter function.

  According to the present invention, since the base film that is directly attached to the shield of the protective film formed by laminating a plurality of films is formed by the polarizing plate, a polarizing filter function is imparted to the shield by this protective film, The reflected light directed toward the driver's line of sight can be cut off. Thereby, the effect similar to the case where a shield is formed with a polarizing plate can be acquired. In addition, since the protective film is provided with a polarizing filter function, the shield of an existing helmet can be easily provided with a polarizing filter function by attaching the protective film to the shield. Furthermore, since only the final film (base film) arranged on the most shield side is formed with a polarizing plate, a normal film having no polarizing filter function is used as another film (peeling film). The cost of this protective film can be reduced.

It is a perspective view which shows the helmet which is one embodiment of this invention. (A) is sectional drawing of the shield shown in FIG. 1, (b) is a modification of the shield shown to the figure (a). It is explanatory drawing which shows the direction of the polarization axis of the shield shown in FIG. (A) is explanatory drawing which shows a mode that a motorcycle drive | works a road with another motorcycle, (b) is explanatory drawing which shows a mode that a motorcycle drive | works a road independently. It is explanatory drawing which shows a mode that a motorcycle drive | works the road along a coast. It is explanatory drawing which shows a mode that a motorcycle drive | works a race track. It is explanatory drawing which shows a mode that a motorcycle drive | works toward a exit toward a tunnel. It is a perspective view which shows the jet-type helmet which is a modification of the helmet shown in FIG. It is a perspective view which shows the state before mounting | wearing with the shield of the protective film which is other embodiment of this invention. It is a perspective view which shows the state which affixed the protective film shown in FIG. 9 on the shield. It is sectional drawing of the shield with which the protective film was affixed. It is a perspective view which shows the state in which one protective film was affixed on the shield.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  A helmet 11 of the present invention shown in FIG. 1 is a helmet 11 for a motorcycle worn by a motorcycle driver, also called a motorcycle, and covers the entire head and face of the driver wearing the helmet. It is a face type. The helmet body 12 (also referred to as a cap body or shell) of the helmet 11 has an outer shape that is substantially oval, and an opening (not shown) for inserting a head is formed in the lower part. Further, a substantially elliptical opening 12a is formed on the front side of the helmet body 12 for ensuring visibility, and a driver wearing this helmet 11 can visually recognize the outside through the opening 12a. It can be done. As the material of the helmet body 12, for example, synthetic resin such as FRP (glass fiber reinforced plastic), polycarbonate resin, ABS resin, polypropylene resin, or the like is used. Thereby, the helmet body 12 has a desired strength. Although not shown, an impact absorbing liner or cushion is attached to the inner surface of the helmet body 12, and a fixing belt is provided at the opening for inserting the head.

  A shield 13 is attached to the helmet body 12. The shield 13 is also called a screen, a shield screen, or a visor. Shield support portions 12b (only one of them is shown in FIG. 1) are provided on both sides of the helmet body 12, and each of the shield support portions 12b is internally provided with a support shaft (not shown). The shield 13 is substantially rectangular and is formed in a plate shape that is curved along the outer shape of the helmet body 12, and both end portions thereof are inserted into the corresponding shield support portions 12b so as to support the shaft inside the shield support portions 12b. It is supported. As a result, the shield 13 can be freely opened and closed between a closed position that covers the entire surface of the opening 12a as shown in FIG. 1 and an open position that is flipped upward from the position to open the opening 12a. Yes. When the motorcycle is running, the shield 13 is closed and the opening 12a is covered by the shield 13.

  In the helmet 11, the shield 13 is formed by a polarizing plate 14 having a function as a polarizing filter in order to cut the reflected light incident on the opening 12 a. As shown in FIG. 2 (a), the polarizing plate 14 sandwiches a polarizing film 14c having a polarizing filter function between a pair of transparent plates 14a and 14b formed in a plate shape by a synthetic resin such as polycarbonate. The shield 13 is integrally formed by means such as welding or adhesion, and the shield 13 is formed by cutting it into a predetermined shape. As the polarizing film 14c used for the polarizing plate 14, for example, a polyvinyl alcohol film formed by stretching in a certain direction while repeatedly applying an iodine solution is used. However, the polarizing film 14c is formed by other materials or methods. Alternatively, a polarizing film may be used.

  In the present embodiment, the polarizing film 14c or the shield 13 is formed by sandwiching the polarizing film 14c between the pair of transparent plates 14a and 14b. However, the present invention is not limited to this. For example, FIG. As shown, the polarizing film 14c may be bonded to one surface of the transparent plate 14a by adhesion, welding, or the like, or the shield 13 itself may be formed of the polarizing film 14c.

  As shown in FIG. 3, the polarization filter characteristic of the shield 13 is set so that the polarization axis S is horizontal (the transmission axis is vertical) in a state where the driver wearing the helmet 11 faces forward. . That is, the polarization axis S of the polarizing film 14 c extends along the width direction of the shield 13 and is horizontal with respect to the field of view of the driver wearing the helmet 11. As a result, the polarized light that vibrates in the lateral direction with respect to the driver wearing the helmet 11 is cut (blocked) by the shield 13 and does not reach the eyes of the driver. You will reach your eyes. Therefore, the reflected light that vibrates in the horizontal direction with respect to the reflecting surface is cut by the shield 13, and the influence of the motorcycle driver wearing the helmet 11 on the reflected light is reduced. Hereinafter, an example in which reflected light is reduced by the shield 13 will be described.

  It is assumed that the driver of the motorcycle 21 wearing the helmet 11 is traveling on a road together with another motorcycle 22 as shown in FIG. In this case, the driver of the motorcycle 21 receives reflected light from the body of the other motorcycle 22, the license plate, or the like. However, in the helmet 11 of the present invention, since the shield 13 is formed by the polarizing plate 14 having the polarization filter characteristic, the reflected light from the other motorcycles 22 is cut by the shield 13 and the driver wearing the helmet 11 It does not reach the eyes.

  Further, as shown in FIG. 4B, even when the driver of the motorcycle 21 wearing the helmet 11 is traveling alone on the road, the driver can The reflected light will be received from the lawn and the leaves of the trees. However, in this case as well, since the helmet 11 of the present invention has the shield 13 formed by the polarizing plate 14 having the polarizing filter function, the reflected light from the road surface or the like is cut by the shield 13 and the helmet 11 is worn. The driver's eyes are not reached.

  As shown in FIG. 5, when a driver of a motorcycle 21 wearing this helmet 11 travels on a road along the coast, sunlight is reflected by the sea surface, the sea surface is glaring by reflected light, and the glare is considerable. Will be. However, even in such a case, the reflected light from the sea surface is cut by the shield 13 formed by the polarizing plate 14, and does not reach the eyes of the driver wearing the helmet 11. Thereby, the glare on the sea surface is reduced and the influence of the reflected light on the driver is reduced.

  As shown in FIG. 6, when the motorcycle 21 travels at a high speed on the racetrack, the driver is required to have high concentration and instantaneous determination. During such races, if the reflected light from the road surface or shoulder curb reaches the driver, the driver's field of view is obstructed, such as the point of the driving line disappearing, and the driver's mental stress is increased. Or These effects impede the proper operation of the driver. However, even in such a case, by wearing the helmet 11 of the present invention, the reflected light from the road surface or the like can be cut by the shield 13 having a polarizing filter function to reduce the influence of the reflected light on the driver. It can be done. As a result, the visibility and concentration of the travel line of the driver wearing the helmet 11 is enhanced, and an appropriate driving operation can be performed during the race.

  As shown in FIG. 7, when the motorcycle 21 running in the tunnel exits the tunnel, the reflected light from the road surface suddenly increases and the field of view becomes white for a moment, and the driver's visibility may temporarily decrease. There is. However, even in such a case, in the helmet 11 of the present invention, the reflected light from the road surface immediately after exiting the tunnel is cut by the shield 13 having the polarization filter function, so that the driver's field of view becomes pure white. There is nothing. Therefore, immediately after leaving the tunnel, the visibility of the driver wearing the helmet 11 is ensured, and safety is enhanced.

  Thus, in the helmet 11 of the present invention, since the shield 13 is formed by the polarizing plate 14 having the polarizing filter function, the reflected light directed toward the driver's line of sight is cut by the shield 13 and the driver reflects the reflected light. Can reduce the effects of glare, stress, and the like. That is, since the reflected light from the road surface does not enter the driver's line of sight due to the polarizing filter function of the shield 13, the nerve is not stimulated by the stress that notices glare, and fatigue can be reduced. As a result, the driver wearing this helmet 11 can concentrate on driving, leading to safe driving.

  Further, by forming the shield 13 with the polarizing plate 14, it is possible to reduce glare caused by light without coloring the shield 13 itself such as smoke. Therefore, it is possible to make the face of the driver wearing the helmet 11 visible from the pedestrian side using a colorless and transparent shield 13 as the shield 13. As a result, the pedestrian can walk while confirming the driver's face, so the safety of both the pedestrian and the driver can be enhanced.

  In this way, by forming the shield 13 with the polarizing plate 14, the glare caused by light can be reduced without coloring the shield 13, so that the helmet 11 can be viewed from the pedestrian side while reducing the glare caused by light. It is possible to improve the safety of both the pedestrian and the driver by making the face of the driver wearing the wheel visible.

  FIG. 8 is a perspective view showing a jet type helmet which is a modification of the helmet shown in FIG.

  In the case shown in FIG. 1, the helmet 11 of the present invention is a full face type. However, the present invention is not limited to this. For example, the present invention may be applied to a jet type helmet 31 as shown in FIG. 8. In the jet-type helmet 31, the field-of-view securing opening 32 a provided in the helmet body 32 extends to the lower end of the helmet body 32 and is connected to the head insertion opening. That is, the chin guard portion for protecting the driver's chin is not provided in the jet-type helmet 31, and the driver's chin is exposed to the outside through the opening 32a. The shield 33 used in the helmet 31 is supported by shield support portions 32b provided on both sides of the helmet body 32 and covers the opening portion 32a for ensuring visibility, like the full-face helmet 11. And an open position jumped upward from there.

  Also in this jet type helmet 31, the shield 33 is formed of a polarizing plate 14 having a polarizing filter function, similarly to the shield 13 of the full face type helmet 11 shown in FIG. As a result, the same effect as that of the full-face helmet 11 described above can be obtained in the jet-type helmet 31.

  FIG. 9 is a perspective view showing a state before mounting the protective film according to another embodiment of the present invention on the shield, and FIG. 10 is a perspective view showing a state where the protective film shown in FIG. 9 is attached to the shield. It is. Moreover, FIG. 11 is sectional drawing of the shield with which the protective film was affixed.

  In the helmet 11 shown in FIG. 1, the shield 13 attached to the helmet body 12 is formed by a polarizing plate 14 so that the shield 13 itself has a polarizing filter function. On the other hand, the helmet 41 shown in FIG. 9 has the same structure in which the visibility securing opening 42a formed in the helmet body 42 is covered with the shield 43 attached to the helmet body 42, but the shield 43 itself is Does not have a polarizing filter function. Instead, in this helmet 41, a laminated protective film 44 having a polarizing filter function is attached to the outer surface of the shield 43 having no polarizing filter function, and the polarizing filter function is added to the shield 43. Yes.

  This protective film 44 is a laminated type called a tear off shield or a throwing visor, and is used particularly in a race. That is, in motorcycle racing, exhaust gas, lubricating oil, or the like discharged from a motorcycle traveling in front adheres to the shield of the helmet, so that the shield becomes dirty in a short time and hinders visibility. In such a case, since there is no room for the driver to manually clean the shield, a protective film is usually attached to the outer surface of the shield. This protective film is formed by laminating a plurality of films so that they can be peeled off from each other. When the outer surface of the film becomes dirty, the driver removes the film one by one from the outside in order to bring out a new film on the outer surface. To ensure visibility. The protective film also has a function of protecting the outer surface of the shield from scratches and the like.

  As shown in FIG. 11, the protective film 44 of the present invention is formed by laminating three stripping films 44b on one surface of a base film 44a so that they can be separated from each other by adhesion, static electricity, or the like. . In this protective film 44, only the base film 44a is formed by the polarizing plate 45 having a polarizing filter function, and the other three stripping films 44b are formed by a normal film having no polarizing filter function. Yes. As the polarizing plate 45 forming the base film 44a, for example, a polarizing film having a polarizing filter characteristic sandwiched between thin transparent films is used, but the polarizing film itself may be used as the base film. Moreover, as a polarizing film, the thing similar to the polarizing film 14c used for the shield 13 shown in FIG. 2 is used, However, You may make it use the polarizing film of another material and method. In addition, the polarization axis of the base film 44a is set to be horizontal when the driver wearing the helmet 41 with the protective film 44 is viewed in the same manner as shown in FIG. However, the direction of the polarization axis can be arbitrarily set.

  Protrusions 46a and 46b for mounting are provided on the outer surfaces of both sides of the shield 43, and a pair of cutouts 47a and 47b are formed on the protective film 44 corresponding to the protrusions 46a and 46b. The protective film 44 is attached to the outer surface of the shield 43 with the surface opposite to the surface on which the peeling film 44b of the base film 44a is laminated facing the shield 43 side. At this time, the notches 47 a and 47 b engage with the corresponding protrusions 46 a and 46 b, so that the protective film 44 is securely held by the shield 43. As described above, the protective film 44 is attached to the outer surface of the shield 43 with the base film 44a being the innermost side of the shield 43, that is, the base film 44a being the innermost side.

  One end of each film 44a, 44b is slightly peeled off from each other, and the driver can grasp the end and peel off the films 44a, 44b sequentially from the outside. ing. That is, if dirt adheres to the outer surface of the protective film 44, the driver can peel off the dirty peeling film 44b sequentially from the outside to expose the new peeling film 44b and secure a field of view. And in this protective film 44, since only the last one base film 44a has a polarizing filter function, even if the other peeling film 44b is peeled off, the last base film 44a is peeled off. Until then, the polarizing filter function can be held in the shield 43.

  Thus, in this helmet 41, the shield 43 itself does not have a polarizing filter function, but the protective film 44 attached to the shield 43 has a polarizing filter function. Even if the protective film 44 attached to the shield 43 is provided with a polarizing filter function instead of the shield 43 itself, as in the case of the shield 13 shown in FIG. The reflected light is cut by the shield 43, that is, the protective film 44, and the effect of reducing the driver's stress and the like can be obtained.

  Further, since the protective film 44 has a polarizing filter function, the shield film 43 of the existing helmet 41 can easily have the polarizing filter function by attaching the protective film 44 to the shield 43. That is, even when the helmet 41 having the shield 43 without the polarization filter function is already owned, the polarization filter function can be easily applied to the shield 43 by attaching the protective film 44 of the present invention to the shield 43. Can be given. Therefore, the helmet 11 having the polarizing filter function can be obtained at low cost by attaching the protective film 44 of the present invention to the shield 43 without newly purchasing the helmet 11 having the polarizing filter function as shown in FIG. It can be done.

  Further, in this protective film 44, only the base film 44 a disposed closest to the shield 43 is formed by the polarizing plate 45. Thereby, the cost of this protective film 44 can be reduced using the normal film which does not have a polarizing filter function as the other peeling film 44b.

  FIG. 12 is a perspective view showing a state where one protective film is attached to the shield.

  The protective film 44 shown in FIG. 9 is a laminated type in which a plurality of peeling films 44b are laminated on a base film 44a.

  On the other hand, as shown in FIG. 12, it is good also as a structure which affixes the protective film 51 which consists of only one film on the shield 43. FIG. Even with such a structure, the polarizing filter function can be easily and inexpensively imparted to the shield 43 by affixing the protective film 51 as in the case of the laminated protective film 44. As this protective film 51, the same polarizing plate 45 as the base film 44a of the protective film 44 shown in FIG. 9 can be used.

  In FIG. 12, members corresponding to those described above are denoted by the same reference numerals.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, in the above-described embodiment, the transparent plate constituting the shield is formed transparent, but the present invention is not limited to this, and the transparent plate may be colored smoke or amber. Smoke or amber may be colored.

  Further, the polarization axis of the polarizing film is not limited to being horizontal, and may be set in an arbitrary direction, or a plurality of polarizing films may be provided so as to overlap each other with the directions of the polarization axes shifted from each other.

  Furthermore, in the above-described embodiment, the present invention is applied to a motorcycle helmet worn by a motorcycle driver. However, the present invention is not limited to this. For example, in a four-wheeled vehicle such as an open car or a helmet for an operator. The present invention may also be applied.

DESCRIPTION OF SYMBOLS 11 Helmet 12 Helmet main body 12a Opening part 12b Shield support part 13 Shield 14 Polarizing plates 14a and 14b Transparent plate 14c Polarizing films 21 and 22 Motorcycle 31 Helmet 32 Helmet main body 32a Opening part 32b Shield support part 33 Shield 41 Helmet 42 Helmet main body 42a Opening Part 43 Shield 44 Protective film 44a Base film 44b Stripping film 45 Polarizing plate 46a, 46b Projection part 47a, 47b Notch 51 Protective film S Polarization axis

Claims (3)

A helmet body provided with an opening for ensuring visibility, and a shield attached to the helmet body and covering the opening,
A helmet characterized in that the shield is formed of a polarizing plate. It is a protective film that is attached to the outer surface of the shield that covers the opening for securing the visibility of the helmet,
A protective film formed of a polarizing plate. It is a protective film that is attached to the outer surface of the shield that covers the opening for securing the visibility of the helmet,
A base film formed by a polarizing plate;
A plurality of peelable films laminated on one side of the base film so as to be peelable from each other, and sequentially peelable by a user;
A protective film, wherein the other surface of the base film is attached to the outer surface of the shield with the other surface facing the shield side.

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