CN110740653B

CN110740653B - Helmet with a detachable head

Info

Publication number: CN110740653B
Application number: CN201880021433.1A
Authority: CN
Inventors: 志田真之; 二村拓
Original assignee: First Dimension Co
Current assignee: First Dimension Co
Priority date: 2017-03-28
Filing date: 2018-02-05
Publication date: 2022-03-22
Anticipated expiration: 2038-02-05
Also published as: CN110740653A; JP6982396B2; EP3603434A1; WO2018179847A1; EP3603434A4; JP7184986B2; JP2021185285A; EP3603434B1; JP2018165415A; US20210106092A1

Abstract

The invention improves the sealing between the helmet and the shield. The helmet is configured to have: a main helmet body (10) having a substantially spherical shape with an open window (11) opened at least in the front so as to provide a wearer with a visual field; a shield (20) which is connected to a pair of rotating mechanisms (12a, 12b) provided on both side surfaces of the main helmet body (10) in a protruding manner and which can move to a closed position where the shield is fixed so as to close the opening window (11) and an open position where the shield is fixed so as to open the opening window (11); and a sealing member (14) that seals a gap between an upper edge of the shield (20) and an upper edge (111) of the opening window of the main body from the vicinity of the one rotating mechanism (12a) to the vicinity of the other rotating mechanism (12b) when the shield (20) is in the closed position, wherein an upper end portion of the shield (20) is bent toward the main body (10) at least at the upper edges in the vicinity of left and right end portions (141a, 141b) of the sealing member (14).

Description

Helmet with a detachable head

Technical Field

The present invention relates to the improvement of the tightness of a protective shield in a helmet.

Background

A helmet to be worn by a rider of a motorcycle or the like has a main helmet body including an outer shell made of a hard synthetic resin and an inner liner made of a collision absorbing material such as a foam material as main parts. The main body of such a helmet has a generally spherical shape, is open at the bottom for the wearer to wear, and has an open window at the front for providing the wearer with a field of view. In general, a transparent cover is disposed on the opening window, and the opening window is closed, whereby the wearer's field of vision is ensured and the inflow of wind and rainwater from the opening window can be prevented. The shield is connected to a pair of rotating mechanisms protruding from both side surfaces of the main helmet body, and is movable to a position for closing the opening window and a position for opening the opening window.

A so-called full-face helmet covers a chin region of a wearer by having a jaw guard under an opening window, and thereby can protect the chin region from impact, collision, or the like even when the wearer falls, for example. Further, there is also known a so-called flip-top helmet in which a jaw protector is configured to be movable upward relative to a main helmet body, and safety of a full-face type, which is particularly important at the time of high-speed running, and a so-called open-face type, which is desired without a jaw protector at the time of low-speed running or stopping, can be switched.

European patent specification No. 1847192 discloses a technique whereby a gasket is inserted into the support frame of the visor (corresponding to the shield of the present application) of a helmet, whereby the visor seals reliably when closed. In addition, in the specification of U.S. patent No. 4524465, a sealing structure of the following helmet is disclosed: a gasket at the upper end of the goggle is tightly attached to the upper part of the opening window, and the lower end of the goggle is tightly attached to a seal lip at the upper end of a lower jaw protector (corresponding to a jaw protector of the present application). Further, japanese patent application laid-open No. s 61-132604 discloses a technique for preventing air leakage by bringing a shield (corresponding to a shield of the present application) into close contact with an upper edge of a window (corresponding to an opening window of the present application) and an upper edge of a chin guard (corresponding to a chin guard of the present application).

Disclosure of Invention

Problems to be solved by the invention

In a helmet having a shield, since there is a gap between the shield and the main helmet body, there is a problem that water enters the interior of the helmet particularly in severe weather such as a storm or when the helmet is driven for a long time in a rainy day. In order to prevent the immersion, a structure is adopted in which a rubber for sealing a gap between the shield and the opening window (hereinafter referred to as "window rubber") is provided at a peripheral edge of the opening window to close the gap between the shield and the main helmet body. In this case, if water is soaked inside the hood, the concentration of the wearer may be reduced to prevent safe driving, and it is important to prevent water from entering the field of vision of the wearer. Specifically, the following efforts are made: by moving the position of the left and right ends of the window rubber, which is likely to be soaked, away from the opening window, that is, toward the rear of the helmet, even when the helmet is soaked, the user can be soaked as far out of the visual field of the user as possible.

However, a pair of rotation mechanisms connected to both end portions of the shield and configured to allow the shield to move in the vertical direction are provided on both side surfaces of the main helmet body. Therefore, in order to move the positions of the left and right ends of the window rubber rearward of the helmet, not only the shape of the shield is changed, but also the rotation mechanism itself is moved rearward of the helmet. On the other hand, from the viewpoint of weight reduction and safety assurance of the helmet, it is required to simplify the structure of the turning mechanism as much as possible. In this way, there is a limit to the extent to which the rotation mechanism itself can be moved rearward of the helmet, and the position of the rotation mechanism on the side of the main helmet body is limited to some extent. Therefore, it is difficult to completely exclude the soaked portion from the wearer's visual field area.

Further, since the rotation mechanism is constituted by various members, the rotation mechanism has a shape protruding to some extent from the outer surface of the main helmet body when the helmet is viewed from above. Therefore, a sealing member thicker than the rubber of the window opening at the center of the opening window is required around the rotation mechanism to fill the gap between the main helmet body and the shield. Such a sealing member is formed as one piece with the window rubber or as another member connected to the window rubber. However, such a window rubber or even a seal member is exposed to the surface of the helmet, which causes a problem of impairing the aesthetic appearance of the design.

In particular, these problems become more significant in a visor type helmet in which a jaw guard is movable relative to a main helmet body. In the above-mentioned helmet, the jaw guard is also connected to the rotation mechanism so that the jaw guard can move in the vertical direction with respect to the main helmet body. That is, since the thickness of the chin bar is added, the projection of the rotating mechanism becomes larger, and the sealing member becomes larger. When the sealing member is large, the adhesion strength to the shield is reduced, and thus the function of preventing the shield from being immersed in water is reduced. Therefore, a sealing member is further added to compensate for the sealing member around the rotating mechanism. However, there is a problem that it is difficult to add a sealing member without hindering the movement of the shield and the jaw guard.

In the face-off type helmet, in order to overcome the above-described weak points, the following construction is adopted: by moving both end portions of the window rubber further rearward of the helmet, even when the helmet is immersed in water, water can be released to the outside of the field of vision of the wearer. However, since the turning mechanism for turning up the jaw guard and the turning mechanism for moving the shield up and down are provided on both side surfaces of the main helmet body, the position of the turning mechanism is more strongly restricted than that of a general full-face type helmet. Further, when the turning mechanism is located at the rear, the hood also needs to be extended rearward, and as a result, the hood becomes large and heavy. As described above, the surface-uncovered helmet has a problem that the design appearance is easily deteriorated and it is difficult to reliably avoid water leakage.

In addition, according to the technique described in the specification of european patent No. 1847192, the shield is in contact with the helmet by providing a washer between the shield and the helmet, and it is obvious that the washer is larger than the shield and the weight of the helmet becomes heavier. In addition, a gap may be generated between the gasket and the helmet. Further, although the technique described in the specification of U.S. Pat. No. 452465 and japanese patent application laid-open No. 61-132604 can reliably perform the adhesion between the boot and the window rubber at the center of the opening window, there is a problem that water leakage from the periphery of the rotation mechanism into the helmet cannot be completely prevented.

The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a helmet which can improve the sealing property between the main helmet body and the shield of the helmet and prevent water from entering the interior of the helmet in severe weather in various types of helmets.

Means for solving the problems

In order to solve the above problem, a helmet according to the present invention includes: a main helmet body having a substantially spherical shape and an open window opened at least in a front direction so as to provide a field of view to a wearer;

a shield connected to a pair of rotation mechanisms provided to protrude from both side surfaces of the main helmet body, and movable to a closed position where the shield is fixed to close the opening window and an open position where the shield is fixed to open the opening window; and

a sealing member that seals a gap between an upper edge of the shield and an upper edge of the opening window of the main helmet body from the vicinity of one of the rotation mechanisms to the vicinity of the other rotation mechanism when the shield is in the closed position,

an upper end portion of the shield is bent toward the main helmet body at least at an upper edge near left and right end portions of the seal member, and abuts against the seal member when the shield is in the closed position.

Effects of the invention

According to the present invention, a helmet in which the sealability between the main helmet body and the shield of the helmet is improved and water immersion into the interior of the helmet in severe weather can be prevented can be obtained.

Drawings

Figure 1 is a perspective view of a helmet according to an embodiment of the invention when the shield is closed and the chin bar is located below.

Figure 2 is a perspective view of a helmet according to an embodiment of the invention when the shield is open and the chin bar is located below.

Figure 3 is a perspective view of a helmet according to an embodiment of the invention when the shield is open and the chin bar is positioned above.

Figure 4 is a schematic view of the x-x section of figure 1 showing a helmet of an embodiment of the present invention when the shield is closed and the chin bar is located below.

Fig. 5A is a left side view of a helmet of an embodiment of the present invention with the shield closed and the chin bar positioned below.

Fig. 5B is a right side view showing a positional relationship between the cover member and the seal member when the chin bar is below.

Fig. 5C is a right side view corresponding to fig. 5B showing a positional relationship between the cover member and the seal member when the chin bar is opened from below to above.

Fig. 5D is a right side view corresponding to fig. 5B showing a positional relationship between the cover member and the seal member when the chin bar is above.

Fig. 6 is a schematic cross-sectional view of a helmet according to an embodiment of the present invention, in which a portion p in fig. 5A is cut in the front-rear direction.

Fig. 7 is a schematic cross-sectional view of a helmet according to an embodiment of the present invention, the cross-section being taken along a left-right direction at a point q in fig. 5A.

Detailed Description

The helmet of the present invention has: a main helmet body provided with an opening window for providing a field of view for an occupant of a motorcycle or the like wearing the helmet; and a shield connected to the main helmet body to open and close the opening window. In addition, in order to prevent water from entering through the gap between the opening window and the shield when the motorcycle is used for a long time while wearing the helmet in severe weather such as storm and traveling, the gap between the opening window and the shield is sealed by the sealing member. In this case, even if water should intrude into the helmet, the left and right ends of the sealing member are moved rearward of the helmet as much as possible so as to prevent the water from entering the visual field of the wearer.

The pair of turning mechanisms provided on both side surfaces of the main helmet body for opening and closing the shield includes a shield base that holds the shield and rotates the shield around a rotation axis substantially orthogonal to the side surfaces of the main helmet body. Therefore, the pair of rotation mechanisms protrude from the left and right side surfaces of the main helmet body. In order to hold the shield with appropriate strength, the thickness of the rotating mechanism must be a certain degree of thickness, and the position of the rotating mechanism is also limited within a prescribed range.

Conventionally, the left and right ends of the seal member are disposed forward of the helmet relative to the rotation mechanism. Since the rotating mechanism has a predetermined thickness, the sealing member needs to be raised higher from the side surface of the main helmet body as the left and right ends of the sealing member are closer to the rotating mechanism. When the rising amount of the seal member increases, the adhesion strength to the shield decreases, and therefore the function of preventing the shield from being immersed in water decreases. Therefore, additional sealing members are added to the left and right ends of the sealing member, thereby compensating for the reduction in the function of preventing flooding.

However, when the left and right ends of the sealing member are moved further rearward, the opening and closing movement of the shield is disturbed, and therefore, another sealing member cannot be added. Therefore, in the present embodiment, instead of adding another sealing member to the left and right ends of the sealing member, the upper end portion of the shield is bent toward the main body. This improves the fit of the gap between the shield and the main helmet body, and eliminates the gap. In addition, because the air resistance of the upper end part of the protective cover is reduced, the helmet can be prevented from being soaked in water, the aerodynamic performance is improved, and the wind noise is reduced.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Figure 1 is a perspective view of a helmet according to an embodiment of the invention when the shield is closed and the chin bar is located below. As shown in fig. 1, a helmet 1 according to an embodiment of the present invention is formed by connecting a substantially spherical main helmet body 10 and a shield 20. The lower portion of the main helmet body 10 is an opening that is opened for a wearer to wear the helmet by inserting the wearer's head, and an opening window 11 is provided in front of the main helmet body 10. The wearer can visually confirm the front through the opening window 11.

The hood 20 is movable by the pair of

rotating mechanisms

12a and 12b to a closed position where the hood is fixed so as to close the opening window 11 and an open position where the hood is fixed so as to open the opening window 11. The protection mask 20 may be made of a transparent resin material such as polycarbonate.

The turning

mechanisms

12a and 12b are provided on both side surfaces of the main helmet body 10. In fig. 1, the turning mechanism 12a on the left side surface is connected to the hood 20, and incorporates a component such as a hood base (not shown) for turning the hood 20 about a turning axis substantially perpendicular to the left side surface of the main helmet body 10. Although not shown, the turning mechanism 12b is similarly provided on the right side surface of the main helmet body. The

rotation mechanisms

12a and 12b protrude from both side surfaces of the main helmet body 10 by built-in members.

A jaw guard 13 is provided in front of the main helmet body 10 and below the opening window 11. The chin bar 13 covers the wearer's chin area, for example, to protect the wearer's chin area from impact or collision or the like in the event of a fall. The jaw guard 13 is formed independently of the main helmet body 10, is connected to the

pivot mechanisms

12a and 12b so as to be pivotable with respect to the main helmet body 10, and is connected to the

pivot mechanisms

12a and 12b so as to be movable to a first position fixed below the opening window upper side 111 and a second position fixed above the opening window upper side 111. The axis of rotation of the chin bar 13 may not coincide with the axis of rotation of the shield 20. When the rotation axis of the chin bar 13 does not coincide with the rotation axis of the shield 20, the chin bar 13 may be connected to a member other than the shield base to which the shield 20 is connected.

Figure 2 is a perspective view of a helmet according to an embodiment of the invention when the shield is open and the chin bar is located below. The structure of each part of the helmet 1 is the same as that of fig. 1 except that the shield 20 is in the open position, and thus, the description of each part is omitted.

Figure 3 is a perspective view of a helmet according to an embodiment of the invention when the shield is open and the chin bar is positioned above. The shield 20 is in the open position, and the structure of each part of the helmet 1 is the same as that of fig. 1 except that the chin bar 13 is positioned above (second position), and therefore, the description of each part is omitted.

Figure 4 is a schematic view of the x-x section of figure 1 showing a helmet of an embodiment of the present invention when the shield is closed and the chin bar is located below. The x-x cross-section is a generally horizontal plane passing through the open window near upper edge 111.

As shown in fig. 1 to 4, a seal member 14 for sealing a gap between the main body 10 and the shield 20 is provided in the main body 10. The sealing member 14 is provided at the periphery of the opening window 11, sealing the gap between the protection mask 20 and the opening window 11. The sealing member 14 is provided at a position corresponding to the upper side of the shield 20 of the main helmet body 10 when the shield 20 is in the closed position, in the vicinity of the upper side 111 of the opening window 11. The sealing member 14 is provided so as to be capable of sealing from the vicinity of the left-side turning mechanism 12a to the vicinity of the right-side turning mechanism 12 b. Since the

pivot mechanisms

12a and 12b protrude from both side surfaces of the main helmet body 10 as described above, the vicinity of the left end 141a and the right end 141b of the sealing member 14 is formed to have a larger thickness than the vicinity of the central portion. In this case, it is preferable that the left end 141a and the right end 141b of the sealing member 14 are configured to be located rearward of the left and right ends of the opening window 11 because the position where the risk of flooding is high can be located away from the field of view of the occupant. The sealing member 14 may be formed of an elastic material such as rubber as an integral window rubber, or may be formed of a window rubber formed by joining elastic materials such as rubber and a sealing member.

Cover members

15a and 15b are provided around the rear sides of the

rotation mechanisms

12a and 12b of the main helmet body 10, respectively. By providing the

cover members

15a and 15b so as to be coupled to the left end 141a and the right end 141b of the seal member 14, the gap between the main helmet body 10 and the left and right rear portions of the shield 20 can be closed, and the

swivel mechanisms

12a and 12b can be protected from collision while preventing water from entering. The

cover members

15a and 15b may be formed of resin or the like as members independent of the main helmet body 10 and the shield 20. The

cover members

15a and 15b may be formed by projecting the main body 10 around the

rotation mechanisms

12a and 12 b. The

cover members

15a, 15b are provided to cover at least the rear sides of the

rotating mechanisms

12a, 15 b. Thus, the peripheries of the

rotating mechanisms

12a, 12b are sealed by the sealing member 14 and the

lid members

15a, 15 b.

Fig. 5A is a left side view of a helmet of an embodiment of the present invention with the shield closed and the chin bar positioned below. As shown in fig. 5A, the cover member 15A is provided to cover the rear side of the rotating mechanism 12 a. In this case, if the upper surface of the sealing member 14 and the upper surface of the cover member 15a form a continuous surface, the protection mask 20 can be configured as a continuous surface according to the shape, and therefore, the step is small, the water-immersion preventing effect is improved, and the protection mask is also excellent in appearance and is easy and preferable to manufacture.

Fig. 5B is a right side view of a helmet of an embodiment of the present invention with the chin bar positioned below. As shown in the drawing, in the present embodiment, the right cover member 15b is attached to the chin bar 13. Although not shown, the left cover member 15a is attached to the chin bar 13 similarly to the right cover member 15 b. When the chin bar 13 is positioned at the lower portion, the upper end 151b of the cover member 15b overlaps the right end 141b of the seal member 14. Although not shown, the upper end 151a of the left cover member 15a overlaps the left end 141a of the seal member 14.

In addition, as shown in fig. 5C and 5D, by the chin bar 13 being opened from below to above, the upper end 151b of the cover member 15b is separated from the right end 141b of the seal member 14, and the upper end 151a of the cover member 15a on the left side is separated from the right end 141a of the seal member 14. In fig. 5B to 5D, the protection mask 20 is not shown.

Fig. 6 is a schematic cross-sectional view of a helmet according to an embodiment of the present invention, in which a portion p in fig. 5A is cut in the front-rear direction. As shown in fig. 6, a seal member 14 is provided in the vicinity of an upper edge 111 of the opening window 11 of the main helmet body 10. The shield 20 is bent at the upper edge so as to approach the main helmet body 10, and the bent portion abuts against the seal member 14.

Fig. 7 is a schematic cross-sectional view of a helmet according to an embodiment of the present invention, the cross-section being taken along a left-right direction at a point q in fig. 5A. As shown in fig. 7, the shield 20 is bent at the upper edge so as to approach the main body 10, and the bent portion abuts against the left end 141a of the sealing member 14 provided in the main body 10.

In the present embodiment, the chin bar 13 is connected so as to be movable by a pair of pivot mechanisms to a first position fixed below the opening window and a second position fixed above the opening window. However, the structure of the jaw guard is not limited to this, and the jaw guard 13 may be integrally formed with the main helmet body 10 and may not be movable. Further, the helmet may be a helmet including only the main helmet body 10 and the shield 20 without the jaw 13.

As described above, according to the present invention, the sealing member is configured to be pressed and brought into close contact with the protection cap by being bent. This provides an effect that water leakage into the interior of the helmet in severe weather in various types of helmets, which has not been achieved by the conventional technique, can be prevented. In addition, the aerodynamic performance can be improved, and the wind noise can be reduced.

Although the embodiments of the present invention have been described above, the embodiments of the present invention are not limited to the above embodiments. That is, other embodiments, additions, modifications, deletions, and the like may be adopted and modified within the scope that can be conceived by those skilled in the art, and the effects of the present invention are exhibited in any form and are included in the scope of the present invention.

Claims

1. A helmet, comprising:

a main helmet body having a substantially spherical shape and an open window opened at least in a front direction so as to provide a field of view to a wearer;

an upper end portion of the shield is bent toward the main helmet body at least at an upper edge near left and right end portions of the seal member and abuts against the seal member when the shield is in the closed position,

the helmet further includes a cover member that covers at least a rear side of the rotation mechanism, and is coupled to left and right end portions of the seal member to close a gap between the main helmet body and left and right rear portions of the shield.

2. The helmet according to claim 1,

an upper end of the shield is bent toward the main body at least at an upper edge of a portion from one end to the other end of the sealing member.

3. The helmet according to claim 1,

the helmet is a full-face type helmet having a jaw guard below the open window,

the cover member is integrally formed with the jaw guard.

4. The helmet according to claim 1,

the cover member is formed continuously with a jaw guard connected to the pivot mechanism and movable to a first position fixed below an upper edge of the opening window and a second position fixed above the upper edge of the opening window.

5. The helmet according to claim 4,

when the jaw guard is in the first position, an upper surface of the sealing member and an upper surface of the cover member form a continuous surface at left and right ends of the sealing member.

6. The helmet according to any one of claims 1 to 5,

the left and right ends of the sealing member are located rearward of the left and right ends of the opening window.