JPH1077520A - Shield attaching structure of helmet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shield attaching structure of a helmet capable of simply attaching or detaching a shield member and not removing the shield member when the shield member is opened and closed. SOLUTION: This helmet is obtained by rotatably attaching right and left both end parts 4a of a shield member around a supporting shaft 5a provided on right and left both outsides of the helmet body by a prescribed angle. In this case, shaft notch part 5i capable of inserting a shield notch part provided on right and left both end parts of the shield member is provided in a part in a shaft direction of the supporting shaft 5a in a direction crossing at nearly right angle to the supporting shaft 5a and a shaft hole 4c for engaging with the supporting shaft 5a and rotating the shield member is continuously provided in the shield notch part and a pressing means A for pressing the shield member 4 inserted into the shaft notch part 5i of the supporting shaft 5a so as to move to the part of the supporting shaft 5a other than the shaft notch part is provided and a holding means for holding the shield member 4 pressed by the pressing means A on the supporting shaft 5a against pressure is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield mounting structure for a helmet having a shield member for opening and closing a front opening.

[0002]

2. Description of the Related Art Conventionally, there is a helmet provided with an opening on the front surface of a helmet body and provided with a transparent shield member for opening and closing the opening. For example, Japanese Utility Model Publication No. 63-486
As disclosed in Japanese Patent Publication No. 65-65, there is a shield member in which both left and right end portions of a shield member are rotatably mounted by a predetermined angle around support shafts provided on both left and right outer surfaces of a helmet body.

[0003]

By the way, when the shield member is mounted so as to be rotatable around the support shaft by a predetermined angle, the shield member is fitted to the retaining portion of the support shaft by fitting the fitting hole of the shield member. Although the shield member is rotatable about the support shaft, there is a possibility that when the shield member is opened, the fitting hole may be located at the position of the retaining portion, and the shield member may come off and separate from the support shaft. .

The present invention has been made in view of the above circumstances, and has as its object to provide a shield mounting structure for a helmet in which a shield member can be easily attached and detached and the shield member does not come off even when the shield member is opened and closed. And

[0005]

In order to solve the above-mentioned problems and to achieve the object, according to the present invention, there is provided a support in which left and right ends of a shield member are provided on both left and right outer surfaces of a helmet body. In a shield mounting structure for a helmet mounted so as to be rotatable by a predetermined angle around an axis, shield notches provided on both left and right ends of the shield member in a direction substantially orthogonal to the support axis. A shaft notch portion through which the portion can be inserted is provided in a part of the support shaft in the axial direction,
A shaft hole for fitting the support shaft and rotating the shield member is provided continuously to the shield notch, and the shield member inserted through the shaft notch of the support shaft is replaced with a shaft member other than the shaft notch. And a holding means for holding the shield member pressed by the pressing means on the support shaft against the pressing. I have. The shield member can be easily attached and detached from a direction substantially orthogonal to the support shaft. In addition, the shield member mounted on the support shaft is held by the support shaft against the pressing with a simple structure of the pressing means and the holding means, so that even when the shield member is opened and closed, the shield member is moved from the support shaft. Can't come off. Furthermore, for example, in the case of providing a cover body, even in a state where the cover body is mounted, a structure that enables the detachment of the shield member can be easily performed,
Even if the cover body comes off during running, the shield member does not come off, so that the helmet can be used without any trouble.

According to a second aspect of the present invention, the pressing means comprises:
Provided on the outer surface side of the helmet body, this pressing means,
The holding means comprises a projection provided at a position separated by a fixed distance from the support shaft, the holding means comprises a flange provided at an outer end of the support shaft, and the shield member comprises an elastically deformable material. It is characterized by. By forming the shield member from a material which can be elastically deformed, the shield member can be held on the support shaft by a pressing means and a holding means having a simple structure.

According to a third aspect of the present invention, a screw is inserted into a screw hole provided in a shaft core of the support shaft, and the support shaft provided with the support shaft is fixed to the helmet body with the screw. A plurality of arc holes are provided around the center of the support shaft axis on the outer periphery of the screw hole of the support shaft, a bearing portion of the support shaft is provided on the outer periphery of the arc hole, and a shaft cutout of the support shaft is provided. A protrusion is provided at a portion where the arc hole is not provided, and a protrusion that engages with the support shaft by being inserted into the arc hole and rotating by a predetermined angle is provided on a cover body that covers the surface of the support shaft. And With the cover member covering the surface of the support shaft removed from the support shaft, even when the shield member is opened,
Since the shield member does not come off the support shaft, remove the cover body from the support shaft and open the shield member,
The position of the support shaft with respect to the helmet body can be adjusted by loosening or tightening the screw. The structure for attaching the support shaft, the shield member, and the cover to the helmet body can be made compact without waste.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A helmet shield mounting structure according to the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a helmet, FIG. 2 is a side view of a state in which a shield member is closed, FIG. 3 is a side view of a state in which a shield member is opened, FIG.
5 is a side view showing a mounted state of the shield member, FIG. 5 is a side view of the support shaft, FIG. 6 is a side view of the shield member, FIG. 7 is a side view of the cover body, and FIG. FIG. 9 is a side view of the state, FIG. 9 is a cross-sectional view of the state where the shield member and the cover body are mounted along the line IX-IX of FIG.
FIG. 11 is a cross-sectional view of the state where the shield member and the cover body are mounted along the line XX of FIG. 8, and FIG. 11 is a cross-sectional view of the state where the shield member and the cover body are mounted along the line XI-XI of FIG.

In the helmet 1 used when riding on a motorcycle or the like, the left portion and the right portion are configured in the same manner, so only the left portion will be described, and the description of the right portion will be omitted. The helmet 1 has a helmet body 2, and has an opening 3 corresponding to the face of the wearer on the front surface of the helmet body 2, and a transparent resin shield member 4 for opening and closing the opening 3 is provided. The shield member 4 is made of an elastically deformable material. Left and right ends 4a of the shield member 4 are
Is mounted so as to be rotatable by a predetermined angle around a support shaft 5a of a support shaft 5 provided on both left and right outer surfaces of the helmet body 2,
The support shaft 5 is covered with a cover 6. The support shaft 5 and the cover 6 are also formed of resin similarly to the shield member 4.

The support shaft 5 has a support shaft 5a and a mounting shaft 5b. Screws 7 and 8 are inserted through screw holes 5c and 5d provided in the shaft cores of the support shaft 5a and the mounting shaft 5b. , Support shaft 5
Is fixed to the helmet body 2 with screws 7 and 8. On the outer periphery of the screw hole 5c of the support shaft 5a of the support shaft 5, a support shaft 5a is provided.
A plurality of arc holes 5e centering on the axis are provided. The support shaft 5 has a support portion 5f near the mounting shaft portion 5b, and an engagement hole 5g is formed in the support portion 5f.

A pair of opposed protrusions 6a and 6b are provided on the back side of the cover 6 covering the surface of the support shaft 5. The projection 6a of the cover 6 is inserted into the arc hole 5e of the support shaft 5, and the projection 6b is engaged with the engagement hole 5g of the support shaft 5.
, The projection 6b is positioned in contact with the guide slope 5m formed continuously with the support 5f. When the cover body 6 is rotated by a predetermined angle from this state, the projection 6b slides on the guide inclined surface 5m in the direction of the engagement hole 5g, so that the engagement hole 5
g, and the claw portion 6b1 of the projection 6b
g, the projection 6a slides at the same time, the claw portion 6a1 engages with the arc hole 5e, and the cover body 6
Easily and securely. As described above, the guide slope 5m formed on the support portion 5f of the support shaft 5 allows the protrusion 6b of the cover 6 to be smoothly fitted into the engagement hole 5g without being caught.

The cover body 6 is formed with a notch holding portion 6c except for a part, and a projection 6d is formed on the back side of the holding portion 6c. The projection 6d is formed by pressing the holding portion 6c with a finger. Pushes the end 4 a of the shield member 4 so that the shield member 4 can be removed from the support shaft 5. Cover body 6
The holding portion 6c may be thin and easily elastically deformable.

A bearing 5h is provided on the outer periphery of the arc-shaped hole 5e of the support shaft 5, and a shaft cutout 5 is formed on the support shaft 5a.
i is provided at a portion where the arc hole 5e is not provided. That is, the support shaft 5 is provided with a shaft cutout 5i through which the shield cutouts 4b provided at the left and right ends 4a of the shield member 4 can be inserted in a direction substantially orthogonal to the support shaft 5a. It is provided in a part of the axial direction.

On the other hand, the shield member 4 is provided with a shaft hole 4c for fitting the support shaft 5a and rotating the shield member 4.
It is provided continuously to the shield notch 4b.

The support shaft 5 has a shaft notch 5 of a support shaft 5a.
Pressing means A is provided for pressing the shield member 4 inserted through i to move it to a portion of the support shaft 5a other than the shaft notch 5i. The pressing means A is provided on the outer surface side of the helmet main body, and the pressing means A is composed of projections 5j and 5k provided at positions separated from the support shaft 5a by a certain distance. Further, the support 5 is provided with holding means B for holding the shield member 4 pressed by the projections 5j and 5k of the pressing means A on the support shaft 5a against the pressing. The holding means B comprises a flange 51 provided at the outer end of the support shaft 5a.

When the shield member 4 is pushed in the direction of the arrow as shown in FIG. 4, the shield member 4 can be easily mounted from a direction substantially perpendicular to the support shaft 5a of the support shaft 5 and has a simple structure. The shield member 4 can be held on the support shaft 5 by A and the holding means B. That is, the shield member 4 is formed of a material that can be elastically deformed. When the shield member 4 is pushed in, its end 4a is pressed by the projections 5j and 5k, and the shaft hole 4c of the shield member 4 is
From the position engaged with the shaft cutout portion 5i of the support shaft 5a in FIG. 10A, it moves to the position of the bearing portion 5h in FIG. 10B, and is held by the flange 51 provided at the outer end of the support shaft 5a. , The shield member 4 can be opened and closed.

When the shield member 4 is rotated, a spring means C for establishing a locking mechanism that is held at a predetermined angular position is formed integrally with the support shaft 5 made of a resin material. The spring means C includes a spring portion 5n integrally provided near the support portion 5f of the support shaft 5.
The spring portion 5n is formed by providing a cutout groove 5n2 in the boss portion 5n1, and has a locking portion 5n3 at the tip end for preventing the end portion 4a of the shield member 4 from coming off. The spring portion 5n is in contact with the outer peripheral portion of the end portion 4a of the shield member 4 so that the shield member 4 can be smoothly opened and closed. At this time, the constant of the spring portion 5n is set to an optimum value without being too large.

Further, a stopper for fully opening the shield member 4 is provided on the spring means C on the support shaft 5, and a spring portion 5n is attached to the shield member 4 to secure a sufficient stopper contact area.
Are provided in accordance with the shape of the outer peripheral portion of the front end portion of. In order that the wearer of the helmet 1 does not forcibly open the shield member 4 with a large force, one end 4d of the shield member 4 first contacts the projection 5o provided near the support shaft 5a and operates.
After that, the other end 4e comes into contact with the stopper of the spring portion 5n to operate the stopper. That is, the shield member 4 is the stopper of the first convex portion 5o, notifies the wearer that it is already fully opened, and draws attention so as not to apply a large force.

The shield member 4 mounted on the support shaft 5a is held by the support shaft 5a against the pressing with a simple structure of the pressing means A and the holding means B, so that the shield member 4 is opened and closed. Even if the shield member 4 does not come off the support shaft 5a. Further, when the cover body 6 is provided, the structure that allows the detachment of the shield member 4 can be easily performed even when the cover body 6 is attached, and even if the cover body 6 comes off during running, the shield member 4 can be easily removed. 4 does not come off, the helmet 1 can be used without hindrance.

When the shield member 4 is to be removed, the shield member 4 is opened to the mounting position shown in FIG. 4 and the pressing portion 6c of the cover body 6 is pressed with a finger. 4 to push the end 4a of FIG.
At 0 (b), as shown by the two-dot chain line, it moves off the bearing 5h and moves to the position of the shaft cutout 5i. Therefore, when the shield member 4 is pulled out, the shaft hole 4c comes off through the position of the shaft cutout 5i, and the shield member 4 can be easily attached and detached with the cover body 6 attached to the support shaft body 5.

A cover 6 covering the surface of the support shaft 5
Even if the shield member 4 is opened and closed in a state in which the shield member 4 is removed from the support shaft 5, the shield member 4 does not come off from the support shaft 5, so the cover body 6 is removed from the support shaft 5 and the shield member 4 is opened and closed. While doing so, the position of the support shaft 5 with respect to the helmet body 2 can be adjusted by loosening or tightening the screws 7 and 8. Further, the structure for attaching the support shaft 5, the shield member 4, and the cover 6 to the helmet body 2 can be made compact without waste.

FIG. 12 is a sectional view of another embodiment showing a mounted state of the shield member. In this embodiment, the holding means B is constituted by a leaf spring 60. This leaf spring 6
The reference numeral 0 is attached to the support shaft 5a of the support shaft body 5 by caulking or the like, and can be easily attached from the outside.

[0023]

As described above, according to the second aspect of the present invention, the shield member can be easily attached and detached from a direction substantially perpendicular to the support shaft. In addition, the shield member mounted on the support shaft is held by the support shaft against the pressing with a simple structure of the pressing means and the holding means, so that even when the shield member is opened and closed, the shield member is moved from the support shaft. Can't come off. Furthermore, for example, in the case of providing a cover body, even in a state where the cover body is mounted, a structure that enables the detachment of the shield member can be easily performed, and even if the cover body comes off during traveling,
Since the shield member does not come off, the helmet can be used without hindrance.

According to the second aspect of the present invention, since the shield member is formed of a material which can be elastically deformed, the shield member can be held on the support shaft by the pressing means and the holding means having a simple structure.

According to the third aspect of the present invention, the shield member does not come off from the support shaft even if the shield member is opened with the cover covering the surface of the support shaft removed from the support shaft. With the body removed from the support shaft and the shield member opened, the screw can be loosened or tightened to adjust the position of the support shaft relative to the helmet body. The structure for attaching the support shaft, the shield member, and the cover to the helmet body can be made compact without waste.

[Brief description of the drawings]

FIG. 1 is a side view of a helmet.

FIG. 2 is a side view showing a state where a shield member is closed.

FIG. 3 is a side view showing a state where a shield member is opened.

FIG. 4 is a side view showing a mounted state of the shield member.

FIG. 5 is a side view of the support shaft.

FIG. 6 is a side view of the shield member.

FIG. 7 is a side view of the cover body.

FIG. 8 is a side view showing a state where a shield member and a cover body are removed.

9 is a cross-sectional view showing a state where the shield member and the cover body are mounted along the line IX-IX in FIG. 8;

FIG. 10 is a cross-sectional view along a line XX of FIG. 8 in a state where a shield member and a cover body are mounted.

11 is a cross-sectional view showing a state where a shield member and a cover body are mounted along the line XI-XI in FIG. 8;

FIG. 12 is a cross-sectional view of another embodiment showing a mounted state of a shield member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Helmet 2 Helmet main body 4 Shield member 4a Right and left both ends of shield member 4 4b Shield notch 4c Shaft hole 5 Support shaft 5a Support shaft 5i Shaft notch A Pressing means B Holding means

Claims (3)

[Claims] 1. A helmet shield mounting structure in which left and right ends of a shield member are rotatably mounted at predetermined angles around support shafts provided on left and right outer surfaces of a helmet body, wherein the support shaft has In a direction substantially perpendicular to the support shaft, shaft notches that can be inserted through shield notches provided at both right and left ends of the shield member are provided in a part of the support shaft in the axial direction, and the support shaft A shaft hole for fitting and rotating the shield member is provided continuously to the shield notch, and the shield member inserted through the shaft notch of the support shaft is connected to a support shaft other than the shaft notch. A helmet seat provided with pressing means for pressing to move the shield member to a position, and holding means for holding the shield member pressed by the pressing means on a support shaft against the pressing. De mounting structure. 2. The pressing means is provided on the outer surface of the helmet main body, and the pressing means comprises a projection provided at a position separated from the support shaft by a certain distance, and the holding means is provided on the support shaft. The helmet shield mounting structure according to claim 1, comprising a flange provided at an outer end portion, wherein the shield member is made of an elastically deformable material. 3. A helmet body, wherein a screw is inserted through a screw hole provided in a shaft core of the support shaft, and the support shaft provided with the support shaft is fixed to the helmet body with the screw. Provide a plurality of arc holes around the center of the support shaft around the hole,
A bearing portion of the support shaft is provided on an outer periphery of the arc hole, a shaft cutout portion of the support shaft is provided at a portion where the arc hole is not provided, and the arc hole is provided on a cover body covering the surface of the support shaft. 3. The helmet shield mounting structure according to claim 1, wherein a projection is provided which engages with the support shaft by being inserted into the helmet and rotating by a predetermined angle.