JPH0441131Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a shield mounting structure for a helmet worn when riding a motorcycle or a car, and more specifically relates to a shield mounting structure for a helmet equipped with a visor.

(Prior art) There are jet type or semi-jet type helmets with a visor worn when riding motorcycles, and a shield is attached to the helmet.
-There is a publication number 24427.

(Problem to be solved by the invention) In the above-mentioned conventional technology, the left and right sides of the shield are attached to the visor, which is fixed to the helmet by a hook button, so that the left and right sides of the shield can be rotated and locked in a predetermined position. be. The moderation adjustment of the rotation angle of the shield is configured such that the engagement of the concave and convex portions of the moderation means acts only in one direction with respect to the rotation center of the shield, so that the spring force acts on the rotation center. acts as a load on the rotation of the shield,
The problem was that the vertical movement (opening/closing movement) of the shield gave a feeling of being stuck, and lacked smoothness.

The present invention has been made in view of the above-mentioned problems of the conventional technology, and when the shield moves up and down, the spring force of the moderation means does not act on the center of rotation of the shield, and the shield moves up and down. To provide a shield mounting structure that allows smooth movement.

(Means for Solving the Problems) In order to achieve the above object, the shield mounting structure of the present invention uses uneven engagement means on the shaft support of the visor, which is fixed and fixed on both left and right sides of the helmet body with setscrews. A hanging member constituting one side of the moderation mechanism is fixed thereon, and the mounting portions on both the left and right sides of the shield are rotatably fitted to the central boss portion of the hanging member, and the moderation mechanism is attached to the mounting portion side. A stopper means is provided opposite to the hanging member and the mounting part to restrict the rotation range of the shield, and furthermore, the engaging part of the moderation mechanism provided on the hanging member is arranged so as to sandwich the center of rotation of the shield. They are provided at approximately symmetrical positions.

The moderation mechanism is composed of a wavy uneven surface formed on the outer circumferential surface of the attachment portion of the shield, and a substantially C-shaped elastic piece formed on the hook member that engages with the wavy uneven surface.

Further, the moderation mechanism has a substantially C-shape having an arcuate hole having a wavy uneven surface that is opened at a position relative to the rotation center in the plane of the attachment part of the shield, and a protrusion that fits into the arcuate hole. It may also be composed of an elastic piece.

(Function) According to the above means, the latching member is fixed to both sides of the visor, which is fixed to the helmet with a set screw, by the uneven engagement means, so that when the latching member rotates, Never. The centers of the mounting parts on both the left and right sides of the shield are rotatably supported by the hanging members that are held in fixed positions, and the mounting parts and the hanging members are located at approximately symmetrical positions across the center of rotation of the shield, respectively. By providing the members constituting the moderation mechanism, the spring force generated by the moderation mechanism is balanced on both sides of the rotation center of the shield, so that it does not act as a load on the shaft support of the shield.

If the moderation mechanism consists of a wavy uneven surface formed on the outer peripheral surface of the shield attachment part and a substantially C-shaped elastic piece formed on the hooking member side, it is necessary to expand the elastic piece outward while Rotate. In addition, if an arcuate hole is drilled in the plane of the mounting part of the shield, the outer periphery of the hole is made into a wavy uneven surface, and a protrusion is provided at the open end of the elastic piece to fit into the arcuate hole, the elastic piece The outward spring force acting on the shield moderates the rotation of the shield.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. Figures 1 to 5 show an example in which the moderation mechanism member on the shield side is provided on the outer peripheral surface of the attachment part of the shield, In the figure, 1 is a helmet, 2 is a visor fixed to the helmet 1 by a set screw 3, 4 is a hooking member that is engaged and fixed to the shaft support 2' of the visor 2, and 5 is a rotating member for the hooking member 4. It is a movably pivoted shield.

The helmet 1 is formed into a jet shape using a material well known today, and has female screw members 6 embedded integrally on both left and right sides of the helmet body, and a set screw 3 screwed into the female screw member 6 to attach the visor. 2
And the hooking member 4 that engages and holds the shield 5 is fixed.

The visor 2 is molded into a predetermined shape from a synthetic resin material, and a through hole 8 into which the boss portion 7 of the hooking member 4 is fitted is opened in the shaft support 2' on both the left and right sides of the visor. , a rectangular notch 9 is formed on the outer peripheral edge of the shaft support 7, and a connecting rod in the shape of a flat band plate connects the boss portion 7 of the hanging member 4 and the approximately C-shaped elastic piece 10. 11 is fitted and engaged,
The locking member 4 is fixedly held in place by being prevented from rotating relative to the shaft portion 2' of the visor 2.

The latching member 4 has a boss portion 7 that fits into the through hole 8 of the visor 2 and has a through hole through which the shaft portion of the set screw 3 is passed, and is arranged concentrically outside the boss portion 7. a substantially C-shaped elastic piece 10 and a connecting piece 11 that connects the boss portion 7 and the center position of the elastic piece 10 in the longitudinal direction.
The elastic piece 10 has a concave groove 12 formed along its length at approximately the center of its plate thickness, and one of the moderation mechanisms is formed at both ends of the elastic piece 10. A protrusion 13 is formed to protrude toward the center (towards the boss).

The attachment portion 14 of the shield 5 that fits into the hooking member 4 is approximately circular and integrally formed on both left and right sides of the shield 5, and a through hole 15 into which the boss portion 7 is fitted is formed in the center of the attachment portion 14. With the establishment of
On the outer peripheral surface of the mounting portion 14, a wavy uneven surface 1 forming the other part of the moderation mechanism is provided at a symmetrical position with the through hole 15 as the center.
6 is formed in a predetermined range, and such a mounting portion 1
The outer circumferential edge of the locking member 4 is fitted into the groove 12 of the locking member 4. Furthermore, stopper portions 17 are formed on the outer periphery of the attachment portion 14 to abut against both ends of the elastic pieces 10 of the hooking member 4, so as to restrict the range of rotation of the shield 5. In the figure, 18 is a washer.

With the above configuration, elastic pieces 10 are provided on the outer circumferential surface of the mounting portion 14 of the shield 5 which is rotatably supported on the hooking member 4 at locations opposite to each other with the center of rotation as a boundary.
Since the protrusion 13 of the elastic piece 10 and the wavy uneven surface 16 engage with each other, the wavy uneven surface 16 rotates while riding over the protrusion 13 of the elastic piece 10, and moderation is imparted to the rotation. The reaction force in the direction of the rotation center caused by the engagement between the protrusion 13 of the elastic piece 10 and the wavy uneven surface 16 acts on opposing positions centering on the boss 7, and therefore The applied loads are balanced, and the inner circumferential surface of the through hole 15 of the mounting portion 14 rotates smoothly without being pressed against the outer circumferential surface of the boss portion 7.

The above is an example in which one side of the moderation mechanism is formed on the outer peripheral surface of the mounting part 14, but the technical idea of the present invention is the sixth one.
As shown in the figure, the outer peripheral edge of the circular arc hole 19 formed in the plane of the mounting portion 14 is made into a wavy uneven surface 20, and a protrusion 21 protruding from the elastic piece 10 is fitted into the circular arc hole 19. Even with such a structure, the same functions and effects as those of the above-mentioned embodiments can be achieved.
In the case of the second embodiment, the length of the arcuate hole 19 determines the rotation range of the shield 5, and the side end of the arcuate hole 19 functions as a stopper.

Further, in the second embodiment, the same members as those in the previous embodiment are given the same reference numerals, and the description thereof will be omitted.

(Effect of the invention) Since the shield mounting structure of the invention has the above configuration, the reaction force of the moderation mechanism acts symmetrically across the rotation center on the mounting part, which is the rotation center of the shield. Therefore, no external force is applied to the rotation of the shield, and smooth rotation is expected with a light force.
Moreover, the moderation acting on the rotation of the shield works stably and can be reliably locked in a predetermined position.

Further, since the shield is fitted and locked to a hooking member fixed to the visor, the visor, the shield, and the hooking member can be integrated and attached to a helmet, making the attachment work easier.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an exploded perspective view of the first embodiment, FIG. 2 is a partially cutaway front view of the assembled state, and FIG. 3 is taken along line 3-3 in FIG. FIG. 4 is a partially cutaway front view of the shield in a rotated state, FIG. 5 is a front view of the shield attached to a helmet, and FIG. 6 is an exploded perspective view showing the second embodiment. . In the diagram, 1... helmet, 2... visor,
2'... Visor shaft support, 4... Hanging member, 5
...Shield, 7...Boss part, 10...Elastic piece,
13... Protrusion, 14... Mounting part, 16... Wavy uneven surface, 17... Stopper part, 19... Arc hole, 2
1...Trust.

Claims (1)

[Claims for Utility Model Registration] (1) A structure for attaching a shield to a helmet equipped with a visor, which is provided by engaging means with projections and recesses on the shaft support of the visor, which is fixed to the right and left sides of the helmet body with setscrews. A hanging member constituting one side of the moderation mechanism is fixed thereon, and the mounting parts on both the left and right sides of the shield are rotatably fitted to the central boss part of the hanging member, and the moderation mechanism is attached to the mounting part side. A stopper means is provided opposite to the latching member and the mounting portion to restrict the range of rotation of the shield, and furthermore, the engaging portion of the moderation mechanism provided on the latching member is arranged so as to sandwich the center of rotation of the shield. The mounting structure of the shield installed in approximately symmetrical positions. (2) The above-mentioned moderation mechanism has a wavy uneven surface formed on the outer peripheral surface of the attachment part of the shield, and an approximately C formed on the hanging member.
2. The shield mounting structure according to claim 1, further comprising a letter-shaped elastic piece. (3) The moderation mechanism is approximately C-shaped, with an arcuate hole having a wavy uneven surface drilled at a relative position relative to the rotation center within the plane of the attachment part of the shield, and a protrusion formed on the latching member. 2. The shield mounting structure according to claim 1, further comprising an elastic piece.