JPS6328181Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a protective lens attachment and support device for attaching and supporting a protective lens to a working helmet.

A protective lens attachment and support device for attaching and supporting a dust-proofing or light-shielding protective lens to a work helmet has conventionally been constructed as shown in FIG. That is, the conventional protective lens attachment support device includes a clip 14 that is fixed to the helmet 10 by clipping the edge 12 of the helmet 10;
It has an arm 20, one end of which is rotatably connected to the bracket 16 of the clip 14 via a pin 18, and the other end of the arm 20 is connected to the protective lens 2.
It was rotatably connected to a bracket 24 at the upper center of the device 2 via a pin 26. When the protective lens is in use, it is normally positioned in the use position depicted by the solid line in FIG. 1, with the curved protective lens 22 lying along the eye area of the helmet wearer's face. However, when the protective lens 22 is not used temporarily and it is desired to be retracted out of the field of view of the helmet wearer, the protective lens 22 is usually flipped up to the retracted position shown by the dashed line in FIG. In this retracted state, both ends of the protective lens 22 are attached to the helmet 1 as if they were cow horns.
It becomes a shape that sticks out from 0. If both ends of the protective lens 22 protrude from the helmet 10 in this way, movement of the helmet wearer, etc.
Both ends of the protective lens may hit objects, causing inconvenience during work.

Therefore, in order to avoid such inconvenience during work, the present invention provides a protective lens attachment support device for a helmet that can retract the protective lens to a state along the curved surface of the helmet when the protective lens is not in use. We aim to provide the following.

That is, the present invention includes a mounting tool that is attached to a helmet, a spherical bearing fixed to the upper surface of the mounting tool, and a curved arm member extending from a spherical journal member that is slidably supported by the spherical bearing. However, there is provided a protective lens mounting and supporting device characterized in that the other end of the curved arm member is coupled to the protective lens.

With the structure described above, the spherical bearing allows the spherical journal member to move in a spherical manner, so that when the mounting tool is attached to a helmet, the curved arm member can move against the edge of the mounting tool attachment part of the helmet. By being able to rotate around the almost parallel first axis of rotation, it is possible to swing the protective lens widely to move it between the use position and the retracted position. By being able to rotate about a second orthogonal rotation axis, when moving the protective lens from the use position to the retracted position, the protective lens can be rotated 180 degrees and the direction of the surface of the protective lens can be reversed. I can do it. Therefore, when the protective lens is placed in the retracted position, the curved surface of the protective lens can be made to follow the curved surface of the helmet.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a protective lens mounting and supporting device according to the present invention will be described with reference to the accompanying drawings.

FIG. 2 is an enlarged partial cross-sectional view showing an embodiment of the protective lens mounting and supporting device according to the present invention. The protective lens attachment and support device according to the present invention has a clip 30 that can be detachably attached to a helmet by clipping the edge of the helmet, and a spherical bearing 32 is fixed to the upper surface of the clip 30. A curved arm member 36 extends from a spherical journal member 34 that is slidably supported on its spherical bearing 32. Further, a pin 26 is attached to a bracket 24 fixed to the upper center of the protective lens 22 in substantially parallel to the protective lens, and a curved arm member is attached to the pin 26 so that the pin 26 can be rotated about the pin 26 as an axis of rotation. The other end of 36 is connected.

The protective lens mounting support device shown in FIG. 2 has a clip 3 attached to the edge 12 of the helmet 10, as shown in FIG.
0, it can be attached to the helmet 10, and when the protective lens is used, it is positioned at the position shown by the solid line in FIG. 3.

When the protective lens 22 is moved from the use position to the retracted position shown by a solid line in FIG. 3, the curved arm member 36 is rotated in the direction of arrow is rotated 180 degrees in the direction of arrow Y around the center of the spherical journal member 34, and further, the protective lens 22 is rotated around the pin 26 to bring it closer to the helmet 10, so that the protective lens 22 is rotated around the curved surface of the helmet. It can be positioned at the retracted position shown by the dashed line in FIG.
Then, when returning to the use position, the operations can be performed in the opposite order to the above.

As is clear from the above, in the embodiment of the present invention described above, since the spherical journal member 34 is slidable in any direction with respect to the spherical bearing 32, the edge 12 of the attachment attachment part of the helmet
The rotatability of the curved arm member 36 relative to a mounting device such as the clip 30 about a first axis of rotation substantially parallel to the tangent to A allows the protective lens 22 to be swung relative to the helmet. Due to the ability of the curved arm member 36 to freely rotate about the second axis of rotation that is substantially perpendicular to the first axis of rotation, the protective lens 22 can be attached to a mounting tool such as the clip 30, ie, a helmet. 10, and the protective lens can be placed in a retracted position along the helmet when the protective lens is not in use.

It will be clear to those skilled in the art that the mounting tool is not only removable, such as the clip 30, but may also be of a bolted type.

Furthermore, in the embodiment described above, the other end of the curved arm member 36 is configured such that the protective lens 22 can rotate relative to the curved arm member 36 about a rotation axis or pin 26 that is substantially parallel to the protective lens 22. Since it is rotatably coupled to the bracket 24 of the protective lens 22, the rotatability of the protective lens 22 with respect to the curved arm member 36 allows the protective lens 22 to
2, the direction or surface of the protective lens 22 can be finely adjusted during use. However, if such fine adjustment is not necessary, it is possible to make some adjustment by rotating the curved arm member 36 about the spherical bearing 32, so even if the curved arm member 36 is fixed to the protective lens 22. good.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a conventional protective lens attachment support, FIG. 2 is an enlarged partial cross-sectional schematic diagram of an embodiment of the protective lens attachment support according to the present invention, and FIG.
The figure is a schematic diagram showing the state of use of the embodiment shown in FIG. 2. 10... Helmet, 14... Clip, 16... Bracket, 18... Pin, 20... Arm, 22... Protective lens, 24... Bracket, 26... Pin, 30
...Clip, 32... Spherical bearing, 34... Spherical journal member, 36... Curved arm member.

Claims (1)

[Scope of utility model registration request] It comprises a mounting tool attached to a helmet, a spherical bearing fixed to the upper surface of the mounting tool, a curved arm member extending from a spherical journal member slidably supported by the spherical bearing, and other than the curved arm member. A protective lens attachment support device characterized in that an end thereof is coupled to a protective lens.