JP2607300Y2 - Helmet - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a helmet, and more particularly to a shield rotating mechanism.

[0002]

2. Description of the Related Art JP-A-63-309611 discloses that
An elastic piece provided on the side surface of the shell is engaged with an arc groove provided at the mounting end of the shield, so that the shield has moderation and is rotatable. When the movement is stopped and the shield mounting end is elastically deformed outward in this state to disengage the stopper and rotate the shield further, the shield mounting end can be removed from the shell. The helmet is shown. In addition, the guide member formed at the mounting end moves while engaging with the arc-shaped guide groove formed at the shell side, and the angle of the shield is adjusted by clicking at a predetermined angle. ing.

[0003]

In order to reduce the size of the shield as much as possible, it is necessary to move the center of rotation of the shield forward to reduce the area. Conceivable. However, the rotation center position is provided near the maximum lateral protrusion of the shell so that when the shield formed on a curved surface different from the shell rotates, there is not much gap between the shell and the shell. Is normal, and if you move forward,
Since the guide member rotates while engaging with the arc groove, a large force for deforming the shield is applied. To counter this, the shield must be thickened to increase rigidity. As a result, it is difficult to achieve weight reduction. Therefore, an object of the present invention is to solve such a problem.

[0004]

In order to solve the above-mentioned problems, a helmet according to the present invention comprises a shell and shields attached to both sides of the shell at both ends to open and close the front surface of the shell. And a base attached to the inner shell surface to regulate the turning position of the shield, wherein the arc is provided in one of the base and the mounting end of the shield when the shield is turned. In a helmet in which a guide member provided on one of the other moves while being engaged, the center of rotation of the shield is set forward of the maximum lateral protrusion of the shell, the base is configured to be more easily deformed than the shield, and The base is fixed to the shell at the lower end and the center of rotation of the arc-shaped groove, and free from the shell at the upper end of the arc-shaped groove. Alternatively, a stopper provided at one of the mounting ends of the shield engages with the other side to stop the rotation, and when the base is pushed toward the shell side at this position and deformed, the engagement with the stopper is released. It is characterized by the following.

[0005]

When the shield is rotated, the shield gradually moves away from the surface of the shell because the center of rotation of the shield is located forward of the maximum lateral protrusion of the shell. At this time, the shield and the base are joined by the guide member engaging with the arc groove, and the base is free from the shell at the upper end side of the arc groove equivalent portion, and is more easily deformed than the shield. Is configured. Therefore, the upper end side of the arc-shaped groove portion of the base is deformed in a direction away from the surface of the shell.

Eventually, when the shield is fully opened, a stopper provided on one of the base and the mounting end of the shield engages with the other side and stops rotating. At this time, a relatively large space is formed between the upper end of the base corresponding to the circular arc groove of the base and the surface of the shell. If this space is used to push the upper part of the base toward the shell to elastically deform the stopper, And the shield is further pivotable and can be removed from the shell.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment constructed as a jet helmet will be described below with reference to the drawings. As shown in FIG. 1, the outer side of the helmet has a rigid shell 2.
A shield 4 made of transparent plastic is provided on the front surface of the shell 2 and is rotatably attached to the side surface of the shell 2 at both left and right mounting ends 6 by a rotation support shaft 8.

The pivot 8 is the largest laterally protruding portion 1 of the shell 2.
0, a place where a large space is likely to be formed between the lower end of the mounting end 6 and the surface of the shell 2 even when the shield 4 is closed, even if the lower end of the mounting end 6 is almost intimately closed. positioned. A base 12 is interposed between the mounting end 6 and the surface of the shell 2 and mounted on the side surface of the shell 2.

A ventilation 16 is provided at the center of the front surface of the shell 2, and a seal rubber 18 is attached to the edge. A trim member 20 is also attached around the lower end of the shell 2.

FIG. 2 is a view showing the front half of the side surface of the shell 2 and a base mounting space 2 for mounting the mounting end 6.
2 has a substantially triangular shape and is formed as a recess lower than the periphery thereof, and a through hole 24 for mounting the rotation support shaft 8 is formed at a position corresponding to one vertex thereof. An engagement groove 26 is formed.

The other two vertices are vertically arranged at a position forward of the through hole 24, and an engagement hole 28 is formed in a portion corresponding to the lower vertices. An intermediate portion of the engagement hole 28 is a step portion 30, and a lower portion thereof is a narrow hole 32.

A ventilation 16 is provided at the front of the shell 2.
Is formed, through which a vent 36 is formed.

A mounting portion 40 for the seal rubber 18 is formed along the open edge 38 on the front surface, and engaging holes 42 in the form of daruma holes are respectively formed at the front end, the middle bent portion at the side surface, and the rear end. At the lower end of the shell 2, a step portion 44 is formed as a mounting portion for the decorative member 20. At the left and right front ends, engaging projections 46 are formed, respectively, and at appropriate intervals. , A through hole 48 for attachment is formed.

FIG. 3 is a front view of the shield 4 and FIG. 4 is a view showing the right half of the same plane. The shell 2 is entirely formed as a relatively rigid and thick member, and as is apparent from these figures, the mounting end 6 is formed in a curved surface different from the shell surface of the portion to be mounted.

At the rear end of the mounting end 6, a turning support shaft 8 is integrally formed to protrude inward, and engaging projections 50 corresponding to the engaging grooves 26 of the through hole 24 are formed around the supporting shaft 8 at intervals of 180 °. And project in the radial direction.

FIG. 6 shows the lower end of the mounting end 6 from inside.
As is apparent from FIG.
Along the inner lower edge of the mounting end 6, a stopper 52 and a guide portion 54 are formed to protrude inward. Engagement steps 56 and 58 (FIG. 6) are formed on the stopper 52 and the guide 54, respectively.

FIG. 7 is a perspective view of the base 12, FIG. 8 is a side view, FIG. 9 is a cross-sectional view taken along line 9-9 of FIG 8. As shown in these figures, the base 12 is easily formed elastically by reducing the thickness and forming a number of slits, and has a substantially triangular shape corresponding to the base mounting space 22 (FIG. 2). .

A pivot hole 60 is formed at a position corresponding to the through hole 24 of the shell 2, and the engaging step 6 is formed at the outer edge thereof.
2, a hole having an inner diameter substantially equal to the outer shape of the rotation support shaft 8, and a notch 64 for passing the engagement protrusion 50 are formed. The engaging step 62 is formed at a height at which the engaging projection 50 passing through the notch 64 is engaged by the rotation of the rotation support shaft 8.

A concave portion 68 for the seal rubber 18 is formed in a front side portion 66 of the base 12 facing the pivot hole 60, and an arc groove 70 centered on the pivot hole 60 is formed in the vicinity of the concave portion 68. The arc-shaped groove 70 is formed in a concave groove shape. A guide rail 72 is formed on an outer peripheral edge along the concave groove portion so as to protrude outward to form a step, and a spring portion 74 is formed on the inner peripheral side. ing.

The spring portion 74 can be elastically deformed by slits 76 and 78. Projections 80 and 82 are formed above and below the spring portion 74 for clicking the guide portion 54 at the fully open position or the fully closed position. I have. The vicinity of the lower convex portion 80 is the guide portion 54 when the shield 4 is fully closed.
Is located at the upper limit position of the guide portion 54 when the shield 4 is fully opened, and above it is the entrance 86 which is open upward.
It has become.

A stopper guide groove 88 is formed on the inner peripheral side of the arc groove 70 separated by the spring portion 74. As is clear from the cross-sectional view taken along line 11-11 of FIG.
The upper half of the lower portion of the stopper guide groove 88 has a hole 9.
0, and a stopper frame 92 is formed at the upper end.

As shown in FIG. 10, on the rear side of the base 12, mounting legs 94 protruding from the periphery of the pivot hole 60 are formed integrally, and can be inserted into the through hole 24 of the shell 2, so that the mounting legs 94 can be inserted. An engagement claw 96 is formed at the tip of
The shell 2 is engaged with the inside of the through hole 24.

A substantially L-shaped engaging member 98 is integrally formed at a position corresponding to the engaging hole 28 of the shell 2. By rotating the base 12 around the mounting leg 94 inserted into the recess, the tip bent substantially horizontally enters the inside of the step portion 30 and engages with the inside of the hole 32.

FIG. 12 is a side sectional view of the liner 100 and the interior 102, and FIG. 13 is a view showing this from below. In these figures, a liner 1 made of styrene foam or the like is shown.
00, a vent 104 corresponding to the front vent 36 is formed at a position corresponding to the front vent 36, a head pad 106 is attached to the top side of the inner space, and the interior 102 is provided at a lower peripheral portion. Installed.

The head pad 106 is a laminated integrated product having a surface 108 made of cloth and a back side 110 made of a soft foam material.
Press cut into a substantially Y-shape. At this time, a slit hole 112 and a small ventilation hole 114 are formed at the same time. These are formed for the purpose of facilitating bending under mounting and improving air permeability, and a slit 112 formed in the front portion 116 is provided with a ventilation groove 118 formed on the liner 100 side.
Located on top.

Since the head pad 106 is released by press cutting, the cut surface is exposed. However, the present invention is different from the usual case in that the cut surface is emphasized as a design element, and the colors of the front surface 108 and the back side 110 are different. Has a two-tone design effect.

The interior 102 is also made of the same material as the head pad 106, and slits 120 are provided in the front and rear folded portions, and small holes 122 for ventilation are formed in the side surfaces. Further, a cut 124 is formed in the front from the upper end of the ventilation port 104 to ensure good ventilation.

The interior 102 is made of the same material as the head pad 106, and is formed into a predetermined three-dimensional shape by stitching a front-cut piece 126 and a rear-piece 128 that have been cut by a sewing line 130.

The interior 102 and the head pad 106
Both of them have good mounting properties, enhance the design effect, and can save labor as much as possible, so that the product is easy and inexpensive.

FIG. 14 is a view showing the left half of the seal rubber 18 together with the rotation section, and shows the horizontal portion 1 along the mounting portion 40.
32 and a diagonal portion 134 along the concave portion 68 of the base 12 are rubber members formed continuously, and the horizontal portion 13
The two parts have a substantially U-shaped cross-section and have upwardly extending gutter grooves 136.
Are formed, the slanted portion 134 is solid, and a projection 138 that engages with the mounting portion 40 is formed.

FIG. 15 is a view showing the left half of the trim member 20 from above, and FIG. 16 is a view showing a cross section taken along line 16-16 of FIG.

As shown in these figures, as shown in FIG.
Is composed of a slope portion 140 extending upward and a lower portion 142 bent inward in a substantially horizontal direction so as to cover the lower edge of the shell 2. Engagement protrusions 144 are integrally formed at appropriate intervals inside the slope portion 140. I have.

The engagement projection 144 is adapted to be fitted and locked into a through hole 48 formed in the step portion 44 of the shell 2. A part of the through hole 48 is formed obliquely for die cutting. A bag-shaped portion 146 is provided at the end of the decorative member 20.
Is formed, and the engaging projection 46 (FIG. 2) engages therewith.

Next, the operation of this embodiment will be described. In FIG. 1, when the shield 4 is rotated upward, the guide portion 54 moves upward from the lower limit position 84 of the circular arc groove 70 as shown in FIG. At this time, the engaging step 58 is guided by the arc groove 70, and the spring 74 is elastically deformed to pass through the guide 54. At the same time, the stopper 52 also moves upward in the stopper guide groove 88.

When the guide portion 54 moves to the position of the convex portion 82, the upper end is brought into the fully open position, and the stopper 52 engages with the stopper frame 92 to stop the rotation. At this time, the engagement step 5
8 is still engaged with the guide rail 72.

This state is a solid line state in FIG. 11, and as shown by an imaginary line in FIG. 4, the base 12 rotates the shield 4 in the opening direction so that the mounting end 6 At the lower end of the shell 2 gradually moves outward from the surface of the shell 2, the engaging step 58 of the guide portion 54 provided on the shield 4 engages with the guide rail 72, and the base 12 Is also easily elastically deformed, and since the upper part of the front of the base 12 is not fixed to the shell 2 side, the upper part of the base 12 is greatly bent to the outside of the shell 2, so that the upper part of the base 12 is A relatively large space is formed.

Therefore, by utilizing this relatively large space, as shown in FIG.
When pushed in the direction, the upper portion of the base 12 is easily elastically deformed and bent like an imaginary line, so that the stopper frame 92 is disengaged from the stopper 52, and the shield 4 can be further rotated upward. become.

Therefore, when the shield 4 is further rotated, the guide portion 54 goes over the convex portion 82 and enters the entrance 86, and at the same time, the engaging step portion 58 is disengaged from the guide rail 72. 8 is released from the base 12 and can be continuously rotated clockwise in FIG. 8. As a result, the engagement protrusion 50 of the rotation support shaft 8 is engaged with the engagement groove 26 of the through hole 24 and the notch 64 of the pivot hole 60. If it is the same, the rotation support shaft 8 can be pulled out from the shell 2 side, and the shield 4 can be removed.

In this way, even if the center of rotation of the shield 4 is moved forward of the maximum lateral projection 10 of the shell 2, the base 12 can be deformed more greatly than the shield 4. It is not necessary to increase the rigidity. Therefore, it is not necessary to make the shield 4 as small as possible and to make the thickness too large. As a result, the weight of the entire helmet can be reduced.

The shield 4 can be attached and detached as necessary.
Alternatively, as described in this embodiment, if the mounting position of the shield 4 is moved considerably forward from the maximum lateral protrusion 10 as in the present embodiment, the shield 4 can be shared with the mounting portion of the visor.
Extremely convenient. Further, the guide member 54 and the arc groove 7
The objects for which 0 is provided can be reversed. The same applies to the stopper.

[0041]

According to the present invention, the center of rotation of the shield is located forward of the maximum lateral projection of the shell, the base is configured to be easier to deform than the shield, and the base is connected to the lower end of the arc-shaped groove. It is fixed to the shell at the center of rotation and free from the shell at the upper end side of the arc-shaped groove equivalent part, and the stopper provided at either the base or the mounting end of the shield at the fully open position of the shield has the other side When the base is pushed toward the shell and deformed at this position, the engagement with the stopper is released.

For this reason, even if the center of rotation of the shield is moved forward of the maximum laterally protruding portion of the shell, the base can be deformed to a greater extent than the shield, so that it is not necessary to increase the rigidity of the shield so much. Therefore, it is not necessary to make the shield as small as possible and to make the thickness too large. As a result, the weight of the entire helmet can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment.

[Figure 2] shell front side view of the embodiment

[3] according to Example sheet - right half front view of the shield

[4] according to Example sheet - right half plan view of the field

FIG. 5 is an enlarged sectional view taken along line 5-5 of FIG . 3;

6 is a view in the direction of arrow A in FIG . 5;

Figure 7 is a perspective view of a base according to the embodiment

FIG. 8 is a side view of the same.

9 is a sectional view taken along line 9-9 in FIG.

10 is a view in the direction of arrow B in FIG . 8;

FIG. 11 is an enlarged sectional view taken along line 11-11 of FIG . 8;

Figure 12 is a cross-sectional view of the liner and interior material according to Example

FIG. 13 is a bottom view of the above.

FIG. 14 is a right half plan view showing the seal rubber according to the example together with an enlarged rotation cross section.

[15] right half plan view of a trim member according to the embodiment

16 is an enlarged sectional view taken along line 16-16 in FIG.

[Description of Signs] 2: Shell, 4: Shield, 6: Mounting end, 8: Rotating support shaft, 10: Maximum lateral protrusion, 12: Base, 18: Seal rubber, 20: Edge decoration member, 22 : Base mounting space, 24: through hole, 28: engagement hole, 50: engagement protrusion, 5
2: Stopper, guide portion, 56: engagement step portion, 58: engagement step portion, 60: pivot hole, 70: arc groove, 72: guide rail, 88: stopper guide groove, 92: stopper frame,
94: mounting leg, 96: engaging claw, 98: engaging member

Claims (1)

(57) [Scope of request for utility model registration] 1. A shell, a shield attached to both sides of the shell at both ends to open and close the front surface of the shell, and a base attached to a shell surface inside the shield to regulate a turning position of the shield. In a helmet, wherein when the shield rotates, the guide member provided on one of the base and the other moves on the arc groove provided on one of the mounting ends of the shield while engaging. The center of rotation of the shield is located forward of the maximum lateral protrusion of the shell, the base is configured to be easier to deform than the shield, and the base is fixed to the shell at the lower end of the arc-shaped groove and the center of rotation. , Free from the shell at the upper end side of the arc-shaped groove equivalent part, and the stopper provided on either the base or the mounting end of the shield engages with the other side at the fully open position of the shield To stop the rotation Te, to the deforming press the base to the shell side in this position, characterized in that the engagement of the stopper is disengaged helmet.