JPH0681206A - Setting structure of shield in helmet - Google Patents

Abstract

PURPOSE:To obtain a shield setting structure for retaining an engaged state of a shield without using a shield pressing cover, capable of attaching and detaching the shield by one operation by taking advantage of spring action of a member made of a synthetic resin. CONSTITUTION:The setting structure of a shield in a helmet consists of base plates 2 which are fixed to the right and left outer sides of a main body 1 of the helmet and a shield 7 which is engaged with the right and left base plates 2, supported and rotated in a given range. The base plates 2 are provided with axial parts 8 to be a revolution center of the shield 7 and suspension stopping parts 11 and 11' at circumferential symmetric positions around the axial parts 8. The suspension stopping parts 11 at one side are approachable and separable from the other suspension stopping parts 11' by spring action. On the other hand, attaching holes 4 to be engaged with the axial parts 8 are formed in a long hole shape along the same direction as that of the arranged suspension stopping parts 11 and 11' at the sides of the base plates 2, at the right and left side parts of the shield 7. Further, hook parts 5 and 5' to be engaged with the suspension stopping parts 11 and 11' at the sides of the base plates 2 are made in the circumference of the attaching holes 4.

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 full-face type or jet type safety helmet used when riding a motorcycle, an automobile or the like.

[0002]

2. Description of the Related Art A conventional shield mounting structure for a full-face type or jet type safety helmet is a latching board provided with a shaft portion for rotatably supporting a shield on a helmet body and a regulating member for regulating a rotation range. Is secured by a set screw, and on the other hand, the left and right sides of the shield are provided with engaging parts that engage and disengage with the locking board, and a shield pressing cover that holds the shield so that it does not separate from the locking board. It is adapted to be engaged with the latching substrate. (Japanese Patent Publication No. 4-33886)

[0003]

The conventional shield mounting structure described above is capable of engaging and holding the shield on the helmet body without using a set screw, as compared with the mounting structure before that, so that various parts are popped out. Although problems such as loss of parts have been solved, it is necessary to attach and detach the shield pressing cover when attaching and detaching the shield, which is troublesome, and the structure of the latching board and the engaging portion formed on the shield side. Has a problem that the structure of is complicated and it is difficult to make molds for them.

The present invention has been made in view of the above-mentioned problems of the prior art. The object of the present invention is to maintain the engaged state of the shield without the shield pressing cover and to attach the shield. The purpose of the present invention is to provide a shield mounting structure that can be removed with one touch by utilizing the spring action of a synthetic resin member.

[0005]

Means for Solving the Problems The technical means taken by the present invention in order to achieve the above-mentioned object is a base plate fixed to the left and right outer side surfaces of a helmet body, and a predetermined range by engaging and supporting the base plate on the left and right. The shield includes a shield that rotates, and the base plate has a shaft that serves as the center of rotation of the shield and a latching portion formed symmetrically around the shaft, and one latching portion of the other latching portion. It can be moved toward and away from the stopper by spring action, while
On the left and right side portions of the shield, mounting holes to be fitted to the shaft portion are formed in a long hole shape along the same direction as the hooking portion on the base plate side is arranged. It is characterized in that a hook portion which engages with the hook portion is formed.

At least the base plate of the above-mentioned base plate, the mounting hole and the hook portion provided on the shield side is made of synthetic resin, and the symmetrical position of the latching portion formed by sandwiching the shaft portion on the base plate is the shaft portion. On the plane provided with, the front and rear or up and down, or diagonally up and down, in relation to each other, one hooking portion is provided at a fixed side portion fixed to the helmet body with a set screw or the like, and the other hooking portion is the above-mentioned. It is continuously connected to both sides of the fixed side portion in a substantially semi-circular shape via elastic spring action pieces, and is formed in a substantially circular ring shape as a whole.

Further, the hook portion formed on the shield side is
It is formed on the outer periphery of a disk-shaped projection that fits in the circular recess of the base plate, and the shaft formed on the base plate side is fitted in the center of the disk-shaped projection, and the shield is attached to the base plate. An elongated hole-shaped mounting hole is formed so that it can be moved and guided along the axis of the hooking portion provided in. Further, the disk-shaped protrusion having the hook portion may be formed on the shield in the same body, or the disk-shaped protrusion may be formed separately from the shield and integrally connected to the side portion of the shield. You can do it.

[0008]

According to the above-mentioned means, the oblong mounting hole formed in the central portion of the disk-shaped projection formed on the side portion of the shield is fitted to the shaft portion on the base plate side, and Hook one of the hooks formed on the periphery of the protrusion to the corresponding hooking part on the base plate side, and in that state, push the hook part and the hooking part that engage the shield forward along the mounting hole to the base plate. The side hooking portion moves in the pushing direction by the spring action. Along with that, the other hook formed on the periphery of the disk-shaped protrusion on the shield side is fitted into the circular recess on the base plate side, and when the force pushing the shield in that state is released, it is pushed forward until then. The retaining portion that has been used is returned to its original position by the restoring force due to the spring action, the shield is also moved together with it, and the other hook portion is also engaged with the other retaining portion on the base plate side.

The shield engaged as described above rotates in the vertical direction within a predetermined range around the shaft portion, so that the shield can be opened and closed. Then, when removing the shield attached to the helmet body, it can be removed by performing the above-described operation in the reverse order.

[0010]

Since the shield mounting structure according to the present invention has the above-described structure, no member such as a shield pressing cover or a set screw is required when mounting the shield, and the shield is fixed to the helmet body side. It is possible to attach and detach with one touch by the spring action provided on the base plate.

Further, since the constituent members are only the base plate fixed to the helmet body side, the long hole and the hook portion equipped on the shield side, the mold can be easily manufactured and can be manufactured at low cost.

[0012]

Embodiments of the present invention will now be described with reference to the drawings. The drawings show a shield mounting structure in a full-face type helmet, in which the base plate 2 formed of a synthetic resin material is formed on the left and right outer surfaces of the helmet body 1. A holder 6 made of synthetic resin, which is fixed by a set screw 3 and has a mounting hole 4 for engaging with the base plate 2 and hook portions 5 and 5 ′, is integrally connected to the left and right side portions of the shield 7.

The base plate 2 has a shaft portion 8 projectingly formed on a flat plate made of synthetic resin, and is fixed to the center of the shaft portion 8 and another portion of the fixed side portion including the shaft portion 8 at another position. A hole 9 through which the screw 3 is inserted is provided, and substantially half arc-shaped elastic spring action pieces 10 and 10 'are provided at both ends of a fixed side portion having an arc shape around the shaft portion 8. The arc-shaped hooking portions 11 are continuously provided, and the hooking portions 11 ′ are formed at symmetrical positions with respect to the shaft portion 8 and are formed in an annular shape as a whole,
A substantially circular recess 12 is formed inside thereof. The hole 9 formed in the fixed side portion of the base plate 2 is a long hole so that position adjustment can be performed when the base plate 2 is attached and fixed to the helmet body 1.

Further, between the shaft portion 8 of the base plate 2 and the latch portions 11 arranged and formed around the shaft portion 8, the latch portion 11 is completely cut out, and the latch portion 11 is formed by elastic spring action pieces 10 and 10 'at both ends. It is formed so that a spring action of displacing in a direction away from 8 or returning to the original position occurs. The other hooking part 11 'and the shaft part 8 are flat fan-shaped connecting flat plates.
The hooks 5 and 5'of the holder 6 can be fitted into and disengaged from each other by being connected by 16 and notching the inner peripheral edge of the hooking portion 11 '. The hooking portions 11 and 11 'are each formed to have a substantially inverted L-shaped cross section so that the hook portions 5 and 5'of the holder 6 are engaged with each other.

The holder 6, which is integrally provided on both the left and right sides of the shield 7, is made of synthetic resin in a flat plate shape.
On the inner surface of the holder 6, the above-mentioned base plate 2
A substantially disk-shaped convex portion 13 that fits into a substantially circular recess 12 defined by the hooking portions 11 and 11 'is integrally formed, and the shaft portion of the base plate 2 is approximately at the center of the convex portion 13. A long hole-shaped mounting hole 4 into which 8 is fitted is formed, and hook portions 5 and 5 ′ are formed on the outer peripheral surface of the convex portion 13 along the long diameter direction of the mounting hole 4.

Mounting hole 4 formed in the convex portion 13 of the holder 6
Is the direction in which the retaining portion 11 of the base plate 2 is displaced by the spring action, and the convex portion along that direction
Hook parts 5 and 5'are integrally formed on the outer peripheral surface of 13 by projecting the outer peripheral surface thereof in an arc shape. Further, stoppers 14 and 14 'that determine the vertical rotation range of the shield 7 are formed on the outer peripheral surface of the convex portion 13, and a stopper receiving portion 15 and a stopper 14' with which the stopper 14 is fitted and locked are provided. A stopper receiving portion 15 ′ which is fitted and locked is formed on the inner surface of the annular peripheral wall of the base plate 2. Further, a step portion 17 is formed on the surface of the convex portion 13 to allow the connecting flat plate 16 of the base plate 2 to be fitted therein so that the connecting plate 16 can be rotated within a predetermined range.

Further, the upper corners of the hook portions 5 and 5'formed on the holder 6 are chamfered in a triangular shape so that the operation of getting over the peripheral edges of the hook portions 11 and 11 'of the base plate 2 can be performed smoothly. I am doing it. Further, a finger hook 18 is formed on the rear portion of the holder 6 for pushing the shield 7 in which the holder 6 is continuously provided forward (in the front opening direction of the helmet).

Next, the attachment of the shield 7 to the helmet body 1 will be described. First, the base plate 2 is fixed to the left and right outer surfaces of the helmet body 1 at predetermined positions with the setscrews 3, and the left and right sides of the shield 7 with respect to the base plate 2. The holder 6 is rotatably engaged through the holders 6 that are integrally provided on both sides. The holder 6 is attached to the front hook portion 5 of one of the holders 6 that are provided on both left and right sides of the shield 7. Is hooked on the locking portion 11 via the recess 12 of the base plate 2 (see FIG. 4 (a)). Next, in this state, a finger is put on the finger rest 18 formed on the rear portion of the holder 6 to push the holder 6 forward. As a result, the latching portion 11 that engages with the holder 6 via the hook portion 5 is connected to the fixed side portion through the elastic spring action pieces 10 and 10 ', so that the latching portion is pushed by the pushing motion of the holder 6. 11 is pushed out in the pushing direction, so that the hook portion 5 ′ on the rear side of the holder 6 can be fitted into the recess 12 on the connecting flat plate 16 of the base plate 2. (See Figure 4 (b)).

When the holder 6 is pushed toward the base plate 2 under the above condition, the shaft portion 8 is fitted in the mounting hole 4 and the rear hook portion 5'is fitted in the recess 12, and then the holder is attached. When the force that pushes 6 forward is released, the elastic spring action pieces 10 and 10 'that push the hooking portion 11 of the base plate 2 forward by spring action return to the original state, and the spring action at the time of return also causes the holder 6 itself. It is moved to the rear and the rear hook 5 '
Engages with the catch 11 'of the base plate 2 so that the hooks 5, 5'of the holder 6 are
The holder 6 is fixed to the base plate 2 by engaging with the hooking portions 11 and 11 ′ of the shield 7, respectively, and the shield 7 is maintained at an arbitrary rotating position by the frictional engagement force of both (FIG. 4).
See (c) and Figure 4 (d)).

By performing the above-mentioned operation on the other holder 6 in the same manner, the shield 7 can be engaged and fixed on the left and right base plates 2 of the helmet body 1, and after the fixing, the shaft portions 8 of the left and right base plates 2 can be engaged. The holders 6 attached to both the left and right sides of the shield 7 rotate around, and the shield 7 can be opened and closed. When removing the shield 7 from the helmet body 1, the shield 7 can be easily removed by reversing the above-described procedure. When the shield 7 is turned up and down, the ratchet mechanism or the like may be attached to the engaging surfaces of the hook portions 5 and 5'and the hook portions 11 and 11 '.

[Brief description of drawings]

FIG. 1 is an exploded side view showing an embodiment of the present invention with a part cut away.

FIG. 2 shows a base plate constituting a shield mounting structure, (a) is a front view and (b) is a sectional view thereof.

FIG. 3 shows a holder constituting a shield mounting structure,
(a) is a front view and (b) is a sectional view.

FIG. 4 is a process chart showing a procedure of engaging and fixing a holder attached to a shield to a base plate of a helmet body.

FIG. 5 is a cross-sectional view showing a state in which the holder is engaged with the base plate and a cross-sectional view showing a state in which the shield is closed.

FIG. 6 is a cross-sectional view showing a state in which a holder is engaged with the base plate and a cross-sectional view showing a state in which a shield is opened.

[Explanation of symbols]

 1 ... Helmet main body 2 ... Base plate 4 ... Mounting hole 5, 5 '... Hook part 6 ... Holder 7 ... Shield 8 ... Shaft part 11, 11' ... Hooking part

Claims (1)

[Claims] 1. A helmet comprising a base plate fixed to the left and right outer side surfaces of the helmet body, and a shield which engages with and is supported by the left and right base plates to rotate within a predetermined range. The base plate has a shaft portion which serves as a rotation center of the shield. A latching portion is formed at a symmetrical position around the shaft, and one of the latching portions can be moved toward and away from the other latching portion by a spring action. Forms a mounting hole that fits into the shaft portion in the shape of an elongated hole along the same direction as that where the base plate side latching portion is arranged, and further, the periphery of the mounting hole is attached to the base plate side latching portion. A structure for mounting a shield in a helmet, characterized in that a hook portion to be engaged is formed.