JPH0699845B2 - Shield plate mounting structure for 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 shield for a helmet for mounting a shield plate on a mounting substrate fixed to an outer surface of a cap body so that the shield plate can be rotated to open and close a window of the cap body. Plate mounting structure

[0002]

2. Description of the Related Art Conventionally, in this type of shield plate mounting structure, screws and covers such as screws are used to prevent the shield plate from coming off the mounting substrate (for example, Japanese Utility Model Publication No. 63-153).
14).

[0003]

By the way, in general, in a helmet, the shield plate may be replaced with a clear type, a sunshade type or the like according to the user's preference or use condition. According to the conventional structure described above, Each time it is replaced, screws must be removed and attached, which is a troublesome work.

The present invention has been made in view of the above circumstances, and provides a simple shield plate mounting structure in which a shield plate can be easily mounted on a mounting substrate without using screws. The purpose is to

[0005]

In order to achieve the above object, the present invention provides a mounting board having a circumferential notch in a part of the outer periphery thereof, and a radially inward engaging pawl and a locking pawl. A partially cylindrical pivot with an outwardly protruding elastic projection,
A locking portion that locks the removable end cover that covers the end of the shield plate at the fixed position and a lock that is elastically urged toward the end cover to lock the end cover at the fixed position. A shaft hole that is rotatably fitted to the pivot shaft and temporarily fixed by the elastic projection is provided on the shield plate, and the end hole is directed to a fixed position along the shield plate. A boss that, when slid, is fitted to the inner circumference of the pivot through the notch and is prevented from slipping outward by the locking claw; and a locked portion with which the locking portion can engage. A lock hole with which the lock member can be engaged is provided.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

First, in FIG. 1, the left and right side walls of the cap body 1 of the full-face type helmet are made of a transparent or translucent synthetic resin as a material for opening and closing the windows 2 opening to the front wall thereof. The left and right ends of the shield plate 3 are attached so as to be vertically rotatable by the attachment structure of the present invention.
The mounting portion of the shield plate 3 is covered by a removable plate-shaped end cover 4.

Next, the mounting structure of the shield plate 3 will be described. As shown in FIGS. 2 to 4, the mounting substrate 5 made of synthetic resin is fixed to the left and right outer side surfaces (only the left side surface side is shown in the drawing) of the cap body 1 by screws 6 and 2 at upper and lower portions. . The partial cylindrical pivot 8 integrally provided on the outer surface of the mounting substrate 5 so as to surround the screw 6 has a large notch 8 ₁ formed in the front portion thereof and a pair of upper and lower portions formed in the rear portion thereof. Elastic protrusions 8 ₃ which can be deformed back and forth are formed through the small notches 8 ₂ and 8 ₂ . As is apparent from FIG. 6, the tip end of the elastic projection 8 ₃ of the pivot 8 is provided with a hook portion 8 ₄ protruding radially outward. Further, as is apparent from FIG. 7, a pair of locking claws 8 ₅ and 8 ₅ protruding inward in the radial direction are formed at the tip of the pivot 8.

A shaft hole 11 of a rotary plate 9 made of a synthetic resin is fixed to each of the left and right ends of the shield plate 3 by three eyelets 10, 10 ..., And a circle opened at the center of the rotary plate 9. The shaft hole 11 is rotatably fitted to the pivot shaft 8. When the rotary plate 9 provided on the shield plate 3 is fitted to the pivot 8, the elastic projections 8 ₃ are elastically deformed inward in the radial direction, and the rotary plate 9 is rotated.
The rotation plate 9 fitted to the pivot 8 is temporarily fixed by the hook portion 8 ₄ formed on the elastic projection 8 ₃ (see FIG. 6). Thus, the shield plate 3 can rotate about the pivot 8 between a fully closed position in which the shield plate 3 is closely attached to the shield member attached to the peripheral edge of the window 2 and a fully open position in which the window 2 is opened. The fully open position of the shield plate 3 is defined by the stoppers 12 and 13 projecting from the opposing surfaces of the mounting substrate 5 and the rotating plate 9 coming into contact with each other.

A click stop mechanism 14 for holding the shield plate 3 in the fully closed or fully open position or for providing the shield plate 3 with a multi-step intermediate stop position in its rotation range is provided between the mounting substrate 5 and the rotation plate 9. It is provided in. The click stop mechanism 14 includes a large number of click teeth 15, 15 formed on the lower edge of an arc centered on the shaft hole 11 of the rotating plate 9.
, And the elastic holding arm 16 formed integrally with the mounting substrate 5. The elastic holding arm 16 has the upper and lower screws 6, 7
The mounting board 5 is arranged so as to extend between
And the other part is exposed to the opening portion 17 of the mounting substrate 5 and released from the mounting substrate 5, an elastic force is applied to the click teeth 15, 15. The elastic holding arm 16 is provided with one or several click teeth 18 which can be selectively meshed with the click teeth 15, 15 ... At the front end, that is, the free end.

The end cover 4 made of synthetic resin for detachably covering the mounting substrate 5 and the rotating plate 9 is fixed by a lock mechanism formed between the mounting substrate 5 and the end cover 4. As shown in FIG. 2, the lock mechanism formed on the mounting substrate 5 side has a pivot 8 which has the above-mentioned notch 8 _{1 and} whose front is open.
In addition to the above, a guide rail 19 is provided as a locking portion that extends linearly in the front-rear direction, and a lock member 20 in which a protrusion 20 ₂ is provided at the tip of an elastically deformable arm 20 ₁ .
The elasticity of the arm 20 ₁ allows the protrusion 20 ₂ to slightly move in the left-right direction inside the opening 17 of the mounting substrate 5.

On the other hand, as shown in FIG. 5, the lock mechanism provided on the side of the end cover 4 is U-shaped so as to project from the center of the rear surface of the end cover 4 and fit inside the pivot 8. A boss 21 and a guide groove 22 as a locked portion projecting on the lower part of the back surface and fitted with the guide rail 19.
The locking projection 23 is provided on the entrance side of the guide groove 22, and the projection 20 _{2 of the} lock member 20 is formed so as to penetrate the lower portion of the end cover 4 in the front and back. The lock hole 24 is provided. Boss 2 of the end cover 4
Locking claws 21 ₁ and 21 ₁ that can engage with the locking claws 8 ₅ and 8 ₅ of the pivot 8 are provided on the upper and lower portions of ₁ (see FIG. 7). The locking claw 23 ₁ is formed in the locking projection 23, the locking claw 23 ₁ is engaged with the locking claws 19 ₁ projecting from the base end lower surface of the guide rail 19 provided in the mounting substrate 5 (See Figure 10).

Next, the operation of this embodiment will be described.

In order to attach the shield plate 3 to the cap body 1 in the state shown in FIG. 2 after removing the shield plate 3 and the end cover 4, the eyelets 10, 1 are previously attached to both ends of the shield plate 3.
The shaft hole 11 of the rotary plate 9 fixed by 0 ... is brought into contact with the pivot shaft 8 of the mounting substrate 5 fixed in advance by the screws 6, 7 to the cap body 1 and pressed in the axial direction. Then, the elastic projection 8 ₃ elastically deforms inward in the radial direction, the shaft hole 11 gets over the hook portion 8 ₄ of the elastic projection 8 ₃ , and as shown in FIGS.
It is coupled to the mounting substrate 5 while being rotatable around and temporarily fixed by the hook portion 8 ₄ of the elastic protrusion 8 ₃ . At this time, the click teeth 15, 15 formed on the mounting substrate 5 and the click teeth 18 formed on the rotating plate 9 are engaged with each other.

When the shield plate 3 is temporarily fixed to the cap body 1 in this manner and the state shown in FIG. 3 is reached, the end cover 4 is attached to cover the end of the shield plate 3. The end cover 4 extends from the front to the rear along the end surface of the shield plate 3 with the lower edge of the end cover 4 along the lower edge of the window 2 of the cap body 1 (direction of arrow a in FIG. 11). It is attached by sliding to.

That is, the end cover 4 is attached to the arrow a in FIG.
Boss 21 protruding on the back surface when slid in the direction
Has a notch 8 inside the pivot 8 formed on the surface of the mounting substrate 5.
₁ is engaged through, and at the same time, the locking claws 21 _{1 of the} boss 21,
21 ₁ engages with the locking claws 8 ₅ and 8 ₅ of the pivot 8 (see FIGS. 7 and 11). As a result, the upper part of the end cover 4 is fixed to the outside, that is, in the axial direction of the pivot 8 inseparably by the engagement of the two locking claws 21 ₁ , 21 ₁ ; 8 ₅ , 8 ₅ .

On the other hand, by sliding the end cover 4,
The guide groove 22 formed on the back surface of the end cover 4 engages with the guide rail 19 formed on the front surface of the mounting substrate 5, and the end cover 4 is prevented from rotating around the pivot 8 (FIG. 9). And FIG. 11). When the end cover 4 slides further, the locking protrusions 2 formed on the back surface of the end cover 4
The engaging claw 23 _{1 of No.} 3 engages with the engaging claw 19 ₁ formed at the end of the guide rail 19, whereby the lower part of the end cover 4 is fixed to the outside, that is, in the axial direction of the pivot 8 inseparably. (See Figure 10).

While the end cover 4 is sliding, the protrusion 20 ₂ of the lock member 20 is pressed against the back surface of the end cover 4 and is retracted while the arm 20 ₁ is elastically deformed. When the lock hole 24 reaches the position of the projections 20 ₂ parts cover 4 is finally slid to the fixed position, projections 20 ₂ protruding by the elastic force of the arm 20 ₁ is fitted into the lock hole 24 It As a result, the movement of the end cover 4 is restricted and the end cover 4 is fixed at a position covering the end of the shield plate 3 (see FIGS. 4 and 8).

For example, in order to remove the end cover 4 in order to replace the shield plate 3, the end cover 4 is removed by pressing the protrusion 20 ₂ of the lock member 20 in the direction shown by the arrow b in FIG. Slide it in the direction opposite to the arrow a of 11. As a result, the boss 21 and the guide groove 22 formed on the end cover 4
The locking projection 23 is separated from the pivot 8 and the guide rail 19 formed on the mounting board 5, and the end cover 4 is removed from the mounting board 5. When the end cover 4 is removed as described above, by pulling the rotating plate 9 provided at the end of the shield plate 3 to the outside, the elastic projection 8 ₃ of the pivot 8 is elastically deformed inward and rotated. The plate 9 is allowed to pass through the shaft hole 11, whereby the shield plate 3 is removed from the cap body 1.

By the way, in general, an impact applied by an accident often acts rearward on the end cover 4, but as described above, the end cover 4 is structured to be removed by sliding forward, The end cover 4 is prevented from coming off in case of an accident. Therefore, the shield plate 3 is also firmly held without coming off from the cap body 1, whereby the driver can be protected more reliably.

Since the shield plate 3 and the end cover 4 are fixed to the mounting substrate 5 without using any screws such as screws, the shield plate 3 can be replaced very easily. In addition, when the shield plate 3 is attached, the rotating plate 9
Hook 8 ₄ axial hole 11 of the formed elastic projections 8 ₃ of the pivot 8
Since it is locked to and temporarily fixed to the end cover 4
The workability is improved because it is not necessary to press the shield plate 3 by hand when attaching the. Furthermore, since provided the engagement claw 8 _5, 8 ₅ for retaining the shield plate 3 to pivot 8 of the mounting substrate 5 to the outer side of the elastic projections 8 ₃ and the end cover 4 to temporarily stop, they The structure of the mounting portion can be simplified.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various small design changes can be made.

For example, the present invention is applicable not only to a full-face type helmet but also to a jet type helmet and other types of helmets.

[0024]

As described above, according to the present invention, the mounting substrate fixed to the cap body is provided with the pivot, the locking portion and the lock member,
The shield plate is attached by fitting its shaft hole to the pivot of the mounting board, and the end cover is attached to the boss of the mounting board, the locked portion, and the lock hole as the pivot of the mounting board, the locking portion, and the lock member. Since they are engaged and attached to each other, the shield plate and the end cover can be easily attached to and detached from the attachment substrate without using screws such as screws, which allows the shield plate to be replaced in a short time. It becomes possible to do. Further, when the shield plate is mounted on the pivot of the mounting substrate, the shaft hole of the shield plate is temporarily fixed by the elastic projection, so it is necessary to hold the shield plate by hand when mounting the end cover subsequent to the shield plate. Is eliminated and workability is improved. Furthermore,
Since the means for temporarily fixing the shield plate and the means for preventing the end cover from coming off to the outside are provided on the pivot of the mounting substrate, the structure thereof can be simplified.

[Brief description of drawings]

FIG. 1 is a side view of a helmet according to an embodiment of the present invention.

FIG. 2 is an enlarged side view of the shield plate mounting structure shown in FIG. 1 with the shield and the end cover removed.

FIG. 3 is an enlarged side view of the shield plate mounting structure shown in FIG. 1 with only the end cover removed.

FIG. 4 is an enlarged side view of the shield plate mounting structure shown in FIG. 1 with a shield and an end cover attached.

FIG. 5 is a view showing the back surface of the end cover.

6 is a sectional view taken along line 6-6 of FIG.

7 is a sectional view taken along line 7-7 of FIG.

8 is a sectional view taken along line 8-8 of FIG.

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

10 is a sectional view taken along line 10-10 of FIG.

FIG. 11 is an explanatory view of the operation when attaching and detaching the end cover.

[Explanation of symbols]

1 cap body 2 window 3 shield plate 4 end cover 5 mounting substrate 8 pivot 8 ₁ notch 8 ₃ elastic projection 8 ₅ locking claw 11 shaft hole 19 guide rail (locking part) 20 lock member 21 boss 22 guide groove ( Locked part) 24 Lock hole

Claims (1)

[Claims] 1. A shield plate (3) on a mounting substrate (5) fixed to the outer surface of the cap body (1), which can be rotated to open and close a window (2) of the cap body (1). For mounting,
In a shield plate mounting structure for a helmet, a mounting board (5) has a circumferential notch (8
₁ ), a partially cylindrical pivot (8) having a radially inward locking claw (8 ₅ ) and a radially outward elastic protrusion (8 ₃ ) formed at the tip, and a shield plate (3) A locking portion (19) for preventing the detachable end cover (4) for covering the end portion thereof from rotating in the fixed position, and the end cover (4) for locking the end cover (4) in the fixed position. And a lock member (20) elastically urged toward the shield plate (3), and the shield plate (3) is rotatably fitted to the pivot shaft (8) and temporarily fixed by the elastic protrusion (8 ₃ ). Shaft hole (1
1) is provided, the end cover (24), when it is slid toward the fixed position along the shield plate (3), the inner circumference of the pivot (8) through said notch (8 ₁₎ bosses which are retained outward by the detent pawl (8 ₅₎ is fitted on (21)
And a locked portion (22) with which the locking portion (19) can be engaged
And a lock hole (2) with which the lock member (20) can be engaged.
4) A shield plate mounting structure for a helmet, characterized in that