TWI695690B - Helmet lens set - Google Patents

Abstract

The present invention is to provide a helmet lens set, including: a bracket on which a plurality of fasteners are provided to be fastened to the front end of the cap shell; a lens, each of the left and right ends is pivotally connected to the bracket by a fixing member; and Two flip cover positioning devices, which are located at the left and right ends of the bracket and the lens, include: two elastic pieces, which are arranged at the left and right ends of the bracket, corresponding to the front and rear arcs; and a guide groove, which is arc shaped and is arranged at the two elastic pieces There are two or more positioning pockets between; and a protruding rod, which is arranged on the inner side of the left and right ends of the lens to pass through the guide groove; thereby making the operation smoother and labor-saving, and lift Cover positioning is more reliable.

Description

Helmet lens set

The invention is a helmet lens set, especially a structure with simplified structure, smooth and labor-saving operation, and stable positioning.

Press, the so-called helmet lens group, refers to the lens (windshield lens) and the visor and/or bracket connected to assemble a general assembly, the lens group can not only be sold with the helmet, but also sold separately , For consumers to buckle directly in front of the helmet shell to achieve the purpose of wind and rain.

Press again, the conventional helmet lens set is generally attached to the bracket (or visor) and the left and right ends of the lens by a fixing member (such as a rivet) to pivotally position the two. Between the bracket and the lens, there is a A base, a turntable and a gasket, wherein the base and the turntable each have teeth (gears or gears) that mesh with each other, so that the fixing member can be used as a rotation axis to apply force to displace the lens up and down. Simultaneously driving the turntable to rotate to change the engagement position between the turntable and the base to achieve the purpose of closing the lens downward or lifting it upward.

In addition, the bracket is provided with a plurality of fasteners to be fastened to the front end of the helmet shell, and the middle outer side of the bottom end of the bracket and the middle inner side of the upper end of the lens each have opposing concave portions and convex blocks to serve as a lens cover Lower limit.

Although the above-mentioned conventional helmet lens group can achieve the purpose of closing or opening, it has the following defects and needs to be improved. 1. The structure is more complicated. In addition to the bracket and the lens, a base, turntable and gasket are required, which can obviously be simplified. 2. The use of tooth-to-tooth engagement makes the lens move up and down, which is more laborious in operation. 3. Fix the bracket (base), turntable, spacer and lens at the same time with fixing parts. If the rivet is too tight, it will be too tight due to the bite. Not only is the operation more laborious, but also the friction is increased and it is easy to wear. Conversely, if the nail is too loose, the engagement will be too loose and too shallow, and the meshing effect will be lost, resulting in the inability to position the lens.

The main object of the present invention is to provide a helmet lens set with a relatively simplified structure.

Another main object of the present invention is to provide a helmet lens group with smoother and labor-saving operation and more stable positioning.

In order to achieve the above object, the present invention includes: a bracket on which a plurality of fasteners are provided to be fastened to the front end of the cap shell; a lens, and the left and right ends are pivotally connected to the bracket by a fixing member; and two flip covers The positioning device is located at the left and right ends of the bracket and the lens, and includes: two elastic pieces, which are arranged at the left and right ends of the bracket, which are arc-shaped corresponding to the front and back; and a guide groove, which is arc-shaped and is arranged between the two elastic pieces, It has two or more positioning pockets; and a protruding rod, which is provided on the inner side of the left and right ends of the lens to penetrate the guide groove; thereby, the operation is smoother and labor-saving, and the positioning of the flip cover is more Firm and true.

In the above-mentioned helmet lens set, the bracket has a fisheye pit in the middle, and the fisheye pit is a push-pull surface with a deep upper and lower depth, so as to make the bracket and the cap shell fit more closely.

In the above-mentioned helmet lens set, each of the left and right ends of the bracket has a perforation, and a circular platform protrudes outside the perforation to avoid friction between the bracket and the lens.

In the above-mentioned helmet lens set, a platform is protruded from the inner upper end of the bracket to install a waterproof strip.

Here are a few preferred and feasible embodiments with the accompanying drawings, which detail the construction features and functions of the present invention as follows, so as to make it easy to understand and agree with.

First, please refer to Figures 1 to 6 at the same time. The present invention includes:

A bracket 1 is in the shape of an arc-shaped concave sheet body, which is provided with a middle fisheye pit 11, long grooves 12 on the left and right sides, and a perforation 13 respectively. , For installing a fastener (female buckle) 14, the outer side of the long groove 12 is provided with an oblong cavity 121 for installing two fasteners (female buckle) 14, so that the bracket 1 has A plurality of fasteners 14 are engaged with a plurality of fasteners (male fasteners) at the front end of the cap shell 3, a circular platform 131 protrudes from the outside of the perforation 13, and a platform 15 protrudes from the inner surface of the bracket 1 For installing a waterproof strip 16;

A lens 2 is arc-shaped and concave, with a perforation 21 at both left and right ends, which can be pivotally fixed to the bracket 1 by a fixing member 22 (such as a rivet); and

Two flip cover positioning devices 4 are provided on the left and right ends of the bracket 1 and the lens 2, including:

The two elastic pieces 41 and 42 are arranged on the left and right ends of the bracket 1 and are in the arc shape corresponding to the front and back;

A guide groove 43 is provided between the two elastic pieces 41 and 42 in an arc shape. The upper and lower ends of the guide groove 43 each have a positioning cavity 44 and 45. The diameter of the positioning cavity 44 and 45 It is larger than the width of the guide groove 43, and the width of the guide groove 43 is equal to the distance between the two elastic pieces 41, 42;

A convex rod 46 is disposed inside the left and right ends of the lens 2 to pass through the guide groove 43. The diameter of the convex rod 46 is larger than the width of the guide groove 43, but is greater than the positioning The diameter of the recesses 44 and 45 is smaller.

According to the above structure combination, the left and right ends of the bracket 1 and the lens 2 are pivotally fixed by a fixing member 22, and then a plurality of fasteners 14 on the bracket 1 are buckled with the cap shell 3, so that the lens 2 is installed and positioned on the cap shell 3 The front end is in a closed state, as shown in FIG. 1, at this time, the convex rod 46 is located in the positioning cavity 44 at the upper end of the guide groove. If you want to lift the lens 2 upwards, just press the lens 2 to move upwards, and use the fixing member 22 as the axis of rotation, so that the convex rod 46 moves down the guide groove 43 to the positioning cavity 45 at the bottom Inside, the lens 2 can be lifted and positioned, as shown in Figures 7 and 8. On the contrary, as long as the lens 2 is moved downward again, the convex rod 46 is moved up to the positioning recess 44 at the upper end of the guide groove, and the closed state as shown in FIG. 1 can be restored.

The above combinations and operations are worth re-emphasizing:

1. Because the fisheye pit 11 in the middle of the bracket is a pushing surface with a deep upper and lower surface, which can correspond to the curvature of the front end of the cap shell 3, therefore, after the bracket is fastened to the cap shell 3 by the fastener 14, in addition to the fastener 14 The head does not exceed the surface of the bracket 1, and the bracket 1, the lens 2 and the cap shell 3 can also be fitted to achieve a better fit, so as to improve the windshield effect.

2. A platform 15 protrudes from the inside of the bracket 1 for installing the waterproof strip 16. Based on the above-mentioned fitting degree, the waterproof strip 16 can be closely attached to the front end of the cap shell 3 to achieve a better waterproof effect.

3. A circular platform 131 is protruded on the outer side of the bracket perforation 13 so that when the bracket 1 and the lens 2 are pivotally fixed by the fixing member 22, the circular platform 131 just forms a gasket to avoid the fixing member 22 and the bracket 1 Friction and wear between.

4. Because the second elastic pieces 41 and 42 have elasticity, and the distance between the two elastic pieces 41 and 42 is equal to the width of the guide groove 43, and the diameter of the convex rod 46 is larger than the width of the guide groove 43, but it is more than these positioning The diameter of the recesses 44 and 45 is smaller. Therefore, when the lens 2 flips up and down to synchronously drive the convex rod 46 to move up and down, as long as a slight force is applied, the convex rod 46 can follow the guide groove 43 and simultaneously open the two elastic pieces 41, 42 to achieve the positioning of the upper and lower ends of the guide groove In the recesses 44 and 45, the lens 2 is closed or opened, which is not only smooth and labor-saving in operation, but also the positioning of the cover 2 of the lens 2 is stable and reliable.

Therefore, it can be seen from the above description that the present invention has at least the following advantages and effects, which is far more advanced than those of the prior art.

1. The structure is simplified, only the bracket 1 and the lens 2 are used.

2. The operation is smooth and labor-saving.

3. The positioning of the flip cover is relatively stable and reliable.

4. The bracket 1, the lens 2 and the cap shell 3 have a better fit, which can improve the effect of wind and rain (waterproof).

Please refer to FIG. 9 again. In the present invention, in the flip positioning device 4, the guide groove 43 is provided with a positioning cavity 44, 45, 47 at the upper, middle, and lower positions, and the positioning cavity 44, 45 The diameter of 47 is larger than the width of the guide groove 43, so as to be engaged with the lens protruding rod 46, so that the lens 2 can be positioned in a three-stage clamshell to achieve the same effect as the first embodiment described above. The second embodiment of the present invention.

In summary, the specific structure disclosed in the embodiments of the present invention is verified to be unknown to the conventional, and can achieve the intended purpose and effect. It is a novel and progressive invention, and the invention patent Application.

1 bracket 11 Fisheye Pit 12: Long slot 121: oblong alcove 13: Perforation 131: Round platform 14: Fastener 15: Platform 16: waterproof strip 2: lens 21: Piercing 22: fixings 3: cap shell 4: flip cover positioning device 41, 42: shrapnel 43: Guide groove 44, 45, 47: positioning pockets 46: convex rod

Figure 1 is a side view of the lens of the present invention when it is closed. 2 is an exploded perspective view of the first embodiment of the present invention. 3 is a schematic structural view of the inner side of the bracket in the first embodiment of the present invention. 4 is a partially enlarged schematic view of the lens in the first embodiment of the present invention. 5 is a combined cross-sectional view of the first embodiment of the present invention. 6 is a schematic cross-sectional view in the middle direction of FIG. 1. 7 is a side view of the lens of the present invention when it is lifted up. 8 is a schematic cross-sectional view of the lens of the present invention when it is lifted up. FIG. 9 is a partially enlarged schematic view of the bracket in the second embodiment of the present invention.

1: bracket

11: Fisheye Pit

12: Long slot

121: oblong alcove

13: Perforation

131: Round platform

2: lens

21: Piercing

22: fixings

4: flip cover positioning device

46: convex rod

Claims (3)

A safety helmet lens set includes: a bracket on which a plurality of fasteners are provided to be fastened to the front end of the cap shell; a lens, a fixing member is pivotally connected to the bracket at both left and right ends; and two flip cover positioning devices , Located at the left and right ends of the bracket and the lens, including: two elastic pieces, which are arranged at the left and right ends of the bracket, corresponding to the front and rear arc shapes; a guide groove, which is arc shaped, is arranged between the two elastic pieces and has two One or more positioning pockets; and a convex rod, which is arranged inside the left and right ends of the lens to penetrate the guide groove. The helmet lens set as described in item 1 of the patent application scope, wherein the bracket has a fisheye pit in the middle, and the fisheye pit is a pushing surface with a shallow depth and a shallow surface, and a platform protrudes from the upper end of the bracket. The helmet lens set as described in item 1 of the patent application scope, wherein each of the left and right ends of the bracket has a perforation, and a circular platform protrudes outside the perforation.

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