JPH0444587Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention (1) Industrial application field The present invention is directed to a sealing plate device for a helmet used mainly for occupants of a motorcycle, particularly a bracket fixed to the outer surface of a helmet body, A shield plate whose end is rotatably supported by a support tube protruding from the outer surface of the bracket, and a non-rotatable end cover which cooperates with the bracket to rotatably hold the end. The present invention also relates to a shield plate device for a helmet.

(2) Conventional technology Conventionally, in this type of shield plate device, a bracket and an end cover are overlapped with the end of the shield plate sandwiched between them, and these three are attached to the cap body with a common screw. (Refer to Utility Model Application Publication No. 1983-20541).

(3) Problems to be solved by the invention By the way, the shield plate attached to the cap body has
In addition to the colorless and transparent clear shield plates that are normally used, smoke shield plates with low light transmittance that are used when sunlight is strong are available, and it is preferable to use these depending on the situation.
Therefore, the shield plate is replaced. However, in the conventional shield plate device described above, when the screws are removed to remove the shield plate from the cap body, not only the shield plate but also the bracket comes off. Reassembly is very troublesome. Also,
Attaching and detaching screws is also troublesome.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a shield plate device for a helmet, which allows the shield plate to be attached to and removed from the cap body with a single touch operation.

B. Structure of the invention (1) Means for solving the problem In order to achieve the above object, the present invention fixes the bracket independently to the cap body, and inserts and removes the end cover into the support tube of the bracket. At the same time,
A concave-convex engagement portion is configured between the end cover and the cap body to prevent rotation of the end cover around the support tube,
This end cover pivotally supports a mounting member that can rotate between an assembly position and a disassembly position by inserting a locking pawl into the support cylinder, and a mounting member that can rotate between an assembly position and a disassembly position is mounted on the support cylinder, and A locking wall that engages with the locking pawl to connect the mounting member and the support cylinder, and a notch that releases the engagement of the locking pawl and the locking wall when the mounting member is disassembled. Features.

(2) Effect According to the above configuration, when the mounting member is rotated to the assembly position with the end cover fitted to the support tube of the bracket, only the mounting member rotates without rotating the end cover. The retaining pawl and the retaining wall are engaged to connect the mounting member and the support tube, and the end cover is assembled to the cap body via the bracket. the result,
The end of the shield plate is rotatably held between the bracket and the end cover.

In addition, when the mounting member is rotated from the above state to the disassembled position, the locking pawl aligns with the notch and does not interfere with the locking wall, so the end cover can be inserted into and removed from the support tube. It can be attached and detached. Therefore, if the end cover is detached from the cap body, the end portion of the shield plate is opened to the outside of the cap body, and the shield plate can be attached to and removed from the cap body.

(3) An embodiment of the present invention will be described below with reference to the drawings. First, in Figs. 1 to 3,
is a full-face helmet mainly used by motorcycle riders, i.e., the helmet body 1
A chin cover portion 1a is provided immediately below the window hole 2 on the front surface.

The cap body 1 includes a shell 3 and a shock absorbing liner 4 made of styrofoam fitted to the inner surface of the shell 3.
A flexible urethane foam fit pad 5 is arranged on the inner surface thereof in a polymerized manner. The shell 3 is divided into an upper shell body 3a and a lower shell body 3b at the position of the chin cover part 1a,
Both 3a and 3b are bonded to each other by rivets 6 at several locations at the overlapping portions with the shell lower body 3b facing outside. The upper shell body 3a is molded from a thermosetting resin such as fiber-reinforced polyester, and the lower shell body 3b is injection molded from a thermoplastic resin such as ABS.

A shield plate 7 for opening and closing the window hole 2 is supported on the cap body 1. The shield plate 7 is made of elastic and translucent synthetic resin and is formed into a circular arc shape that bulges forward in accordance with the outer shape of the front part of the shell 3. Both ends 7a of the shield plate 7 It is rotatably mounted on the

The mounting structure will be explained next.

In FIGS. 2 to 4, support plates 8 are fixed to both ends 7a of the shield plate 7, respectively.
On the other hand, a bracket 9 is independently fixed to the outer surface of the cap body 1, and the support plate 8 is rotatably supported by a support tube 10 that projects from the outer surface of the bracket 9. An end cover 11 is removably fitted into the support tube 10, and the end cover 11 and the bracket 9
They cooperate to rotatably hold the support plate 8.

Referring also to FIG. 5, the bracket 9 is made of synthetic resin and has a circular through hole 1 in the center of the base end surface of the support tube 10.
2, and a through hole 13 is bored in the mounting piece 9a extending downward. The bracket 9 is independently fixed to the outer surface of the shell 3 by screws 14 and 15 inserted through the through holes 12 and 13.

A pair of locking walls 16, 1 are provided on the inner surface of the support tube 10.
6 and notches 17, 17 are formed alternately in a line in the circumferential direction. Each locking wall 16 is formed with a circumferentially extending groove 18 on the base end side of the support tube 10, one end of this groove 18 is open to the notch 17, and the other end is connected to the locking wall 16.
It is closed by a stopper part 19 that is integrated with. Also groove 1
A notch 20 is provided on one side of the notch 8 adjacent to the stopper portion 19.

Further, the bracket 9 is provided with a sawtooth-like concave-convex engaging portion 21 on the outside of the support tube 10.
The concave portions and convex portions 1 are arranged alternately in the circumferential direction of the support tube 10.

The support plate 8 is also made of synthetic resin, and a shaft hole 22 is bored in its center to fit into the support tube 10 in a freely insertable and removable and rotatable manner. A concavo-convex engaging portion 3 that engages with the portion 21 is formed. These uneven engaging portions 21 and 23 are connected to the support plate 8.
When the shield plate 7 is rotated around the support tube 10, the support plates 8 and the like are elastically deformed to change their mutual engagement positions, and the support plate 8, that is, the shield plate 7, can be held at any rotation position.

The end cover 11 is also made of synthetic resin, and a bottomed cylindrical portion 24 is bored in the inner surface thereof, and the support tube 10 fits into the bottomed cylindrical portion 24 in a removable and rotatable manner.

Further, a circular recess 25 coaxial with the bottomed cylindrical portion 24 is formed on the outer surface of the end cover 11, and a long hole 27 is bored in the partition wall 26 between the recess 25 and the bottomed cylindrical portion 24, extending along the diameter line thereof. will be established. A mounting member 28 is attached to the partition wall 26 through this elongated hole 27.

The mounting member 28 is also made of synthetic resin, and includes a disc-shaped base 28a that abuts the partition wall 26 in the recess 25 of the end cover 11, and a disc-shaped base 28a that is coaxially connected to the back surface of the base 28a and is inserted through the elongated hole 27. A shaft portion 28b having a circular cross section, and a pair of locking arms 28 protruding radially outward from the tip of this shaft portion 28b.
c, 28c. Each locking arm 28c
is bent in a hook shape at the middle part so as to move away from the base 28a, and the tip side of the bent part is connected to the support tube 1.
The groove 18 of the locking wall 16 can be engaged through the notch 17 of the locking wall 16 . This locking arm portion 28c is provided with a protrusion 29 that can engage with the notch 20.

As shown in FIG. 4, the mounting member 28 is rotatable around a shaft portion 28b, and a tool groove 30 for engaging a coin or the like is provided on the surface of the base portion 28a. An indicator 31 is carved on the outer side of one end of 30. On the other hand, the end cover 11 has an assembly position indication mark 32 along the periphery of the recess 25;
Insertion position indication mark 33, disassembly position indication mark 3
4 are carved in sequence, and these marks 32, 3
By rotating the mounting member 28 such that the marks 31 are selectively aligned with the marks 3 and 34, the mounting member 28 is provided with an assembled position, an inserted position, and a disassembled position.

Thus, in the insertion position of the mounting member 28, as shown in FIGS. 6a and 6b, the mounting member 28 is
When attaching to the end cover 11, the locking arm 28
The arm portion 28c can be inserted into the elongated hole 27.
coincides with the elongated hole 27. Furthermore, in the disassembled position of the mounting member 28, as shown in FIGS. 6c and 6d,
The locking arm 28c matches the notch 17 so that the locking arm 28c can be inserted into and removed from the support tube 10 without interfering with the locking wall 16. Further, after the end cover 11 is fitted to the support tube 10, the locking arm portion 28c is always able to engage with the groove 18 of the locking wall 16 at any position other than the disassembled position, and especially in the assembled position,
As shown in FIGS. 6e and f, the locking arm 2
One side of 8c contacts the stopper portion 19, and the protrusion 29 engages with the notch 20.

Furthermore, as shown in FIGS. 1, 2, and 5, a protrusion 35 protruding from the lower end of the end cover 11 is inserted into a recess 36 defined between the shell upper body 3a and the lower shell body 3b. engaged, and both 35,
36 constitutes a concave-convex engaging portion 37 that prevents the end cover 11 from rotating around the support tube 10.

Next, the operation of this embodiment will be explained.

When attaching the shield plate 7, first, the shaft holes 22 at both ends 7a of the shield plate 7 are pivotally supported by the support tubes 10 of the bracket 9 fixed to the cap body 1 in advance.

On the other hand, as shown in Figures 6a and b,
The mounting member 2 is inserted so that the indicator 31 matches the insertion position indication mark 33 to give the mounting member 28 an insertion position.
8 is fitted into the recess 25 of the end cover 11, and the locking arm 28c is inserted into the bottomed cylindrical portion 24 on the inner surface of the end cover 11 through the elongated hole 27. After insertion, the attachment member 28 is rotated to align the indicator 31 with the disassembly position indication mark 34, thereby aligning the attachment member 28 to the disassembly position (FIG. 6c). Then, the locking arm 2
8c engages with the partition wall 26, and the mounting member 28 cannot be removed from the end cover 11, and the mounting member 28 is rotatably attached to the end cover 11.

Next, the protrusion 35 of the end cover 11 is engaged with the recess 36 of the cap body 1, and the bottomed cylindrical portion 24 is fitted into the support tube 10. The locking arm portion 28c projects into the support tube 10 through the notch 17. (Figure 6d).

When the mounting member 28 is rotated to the assembly position, that is, until the index 31 coincides with the assembly position indication mark 32 (FIG. 6 e and f), the locking arm 28c engages with the groove 18 of the locking wall 16, and the installation is completed. Member 28 and support tube 10
are connected, and the end cover 11 is connected to the bracket 9.
It is attached to the cap body 1 via. At this time, protrusion 2
9 engages with the notch 20, the rotation of the mounting member 28 is locked, making the connection more reliable. The end 7a of the shield plate 7 is rotatably held between the end cover 11 and the bracket 9.

When the mounting member 28 rotates after the end cover 11 is fitted in this way, the end cover 11 engages with the concave and convex engagement portion 3.
7 prevents its rotation. Even when the mounting member 28 is in the insertion position where the mid-rotation indicator 31 and the insertion position indication mark 33 match, the engagement arm 28c has already engaged with the groove 18 of the locking wall 16, so the end cover 11 It will never fall off.

When removing the shield plate 7, move the mounting member 28 from the above state to the disassembled position, that is, at the index 31.
When the end cover 11 rotates until it matches the disassembly position index mark 34, the locking arm 28c disengages from the groove 18 of the locking wall 16, and the end cover 11 can be inserted into and removed from the support tube 10. Become. When the end cover 11 is removed, one end of the support tube 10 is opened, so that the end 7a of the shield plate 7 can be inserted into and removed from the support tube 10, and the shield plate 7 can be removed from the cap body 1. .

In this way, the shield plate 7 can be attached to and detached from the cap body 1 by one-touch operation of the attachment member 28, so that the shield plate 7 can be replaced extremely easily.

C. Effects of the invention As described above, according to the invention, the bracket is independently fixed to the cap body, the end cover is removably fitted to the support tube of this bracket, and the end cover is inserted between the end cover and the cap body. A concave-convex engaging portion is configured to prevent the cover from rotating around the support tube, and the end cover can be rotated between an assembled position and a disassembled position by inserting a locking claw into the support tube. The mounting member is pivotally supported, and the support tube includes an engagement wall that engages with the locking pawl at the assembly position of the mounting member to connect the mounting member and the support tube, and an engagement wall that connects the mounting member and the support tube at the disassembled position of the mounting member. Since the locking pawl and the notch for releasing the engagement of the locking wall are provided, the shield plate can be attached to and removed from the cap body by one-touch operation of the mounting member, and the shield plate can be replaced extremely easily.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of the entire helmet, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, and FIG. Figure 4 is an enlarged side view of the shield plate mounting part, Figure 5 is an exploded perspective view showing the shield plate mounting structure,
FIG. 6 is an explanatory diagram of the operation of each rotational position of the mounting member. H... Helmet, 1... Cap body, 7... Shield plate, 7a... End, 9... Bracket, 10...
... Support tube, 11 ... End cover, 16 ... Locking wall, 17 ... Notch, 28 ... Mounting member, 28c ...
...Latching arm portion as a locking claw, 37... uneven engagement portion.

Claims (1)

[Claims for Utility Model Registration] A bracket 9 fixed to the outer surface of the cap body 1, and a shield plate 7 whose end 7a is rotatably supported by a support tube 10 protruding from the outer surface of the bracket 9. ,
and a helmet shield plate device comprising a non-rotatable end cover 11 that rotatably clamps the end portion 7a in cooperation with the bracket 9, in which the bracket 9 is independently fixed to the cap body 1; The end cover 11 is removably fitted into the support tube 10 of the bracket 9, and a concave-convex engaging portion 37 is provided between the end cover 11 and the cap body 1 to prevent rotation of the end cover 11 around the support tube 10. This end cover 11 has a locking claw 2 on the support tube 10.
8c plunges in to pivotally support the mounting member 28 which can be rotated between an assembled position and a disassembled position, while the support tube 10 has a mounting member 28 that engages with the locking pawl 28c when the mounting member 28 is in the assembled position. Mounting member 28 and support tube 1
the locking wall 16 that connects between the two and the mounting member 28;
A shield plate device for a helmet, comprising a locking pawl 28c and a notch 17 for releasing the engagement of the locking wall 16 in the disassembled position.