JPH0154441B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a shield screen attachment device for a helmet.

(Prior art) As shown in FIG. 1, in the conventionally known Japanese Utility Model Application Publication No. 53-5111, a shield screen B is provided in front of the window of a helmet A, and the shield screen B is placed vertically with respect to the helmet A. In the adjustable screw-fastened helmet, the helmet A is provided with a screw hole C, and the shield screen B is provided with a screw hole C.
A technique is described in which when a bush E having an eccentric through hole D larger than the diameter of the screw hole is fitted and fixed by a fixed shaft F, the bush E is rotated to align the holes.

(Problems to be Solved by the Invention) What is described in the above-mentioned known example is a technique for aligning screw holes when the shield screen B is pivotally fixed to the helmet A. Therefore, the problem associated with the vertical movement of the shield screen B cannot be solved.

In other words, in the known example, the shield screen moves back and forth when the bush E is rotated, but this operation cannot be done without loosening the fixed shaft F, so the helmet must be worn while driving. I can't do it.

Generally, a shield screen is attached tightly to the front surface of a window. Otherwise, there will be drafts and it will be difficult to drive the motorcycle. Also in the known example, when the fixed shaft F is tightened, the shield screen C is
It is naturally designed to fit tightly against the front of the window.

The problem when installed in the above condition is that since the shield screen is tightly fixed to the front surface of the window, it cannot be smoothly moved up and down about the axis.

The present applicant has already pointed out this point and proposed a mounting device that can move the screen forward and then up and down when installing a shield screen on a helmet. In order to move the screen back and forth, it must be done with both hands, causing the inconvenience of having to stop the car, motorcycle, etc.

(Object of the Invention) The present invention eliminates the inconvenience of stopping a motorcycle by allowing the user to move the screen back and forth with one hand without having to stop the motorcycle.

(Means for Solving the Problem) Therefore, the present invention provides a shield screen 3 in front of a window 2 of a helmet 1, and the shield screen 3 is attached to the helmet 1 so as to be vertically adjustable. The helmet 1 is provided with a fixed shaft 14 projecting in a substantially horizontal lateral direction,
The fixed shaft 14 has an annular body 4 that can rotate around the axis of the shaft 14 and stop at a desired rotation angle position.
, and the annular body 4 has an insertion piece A projecting forward.
A structure of a mounting device for a helmet shield screen, which is provided with a box 12 in which the insertion piece A is inserted into the shield screen 3, and which slides and changes its engagement state when the shield screen 3 is operated back and forth with one hand. That is.

(Structure of the embodiment) An embodiment of the present invention will be described with reference to the drawings.
2 is a helmet, 2 is a window formed in the front side of the helmet 1, and 3 is a shield screen that covers the front side of the window 2.

The shield screen 3 is rotatably attached to the helmet 1 on either the left or right side (for example, the right side) by a shaft, and the other left or right side (for example, the left side) of the shield screen 3 is rotatably attached to the helmet 1. , mounted so that it can be rotated and moved forward and backward.

A fixed shaft 14 projecting substantially horizontally and laterally is provided on the other side surface of the helmet 1, and the fixed engaging body 6 is fixed to the fixed shaft 14.

The fixed engagement body 6 has a perfect circular metal-like shape, and several recesses 9 are formed at intervals on its outer periphery. The reason why the fixed engagement body 6 is provided is because the diameter of the fixed shaft 14 is small. If the diameter of the fixed shaft 14 is as large as the fixed engagement body 6, the fixed engagement body 6 is unnecessary.

An annular body 4, which is a part of the rotary engaging body 5, is fitted onto the outer periphery of the fixed engaging body 6.

The annular body 4 is formed of a ring-shaped spring body that surrounds the outer periphery of the perfectly circular fixed engagement body 6, and in the embodiment, a part of the rear part (to be more precise, approximately above and below in the horizontal state) is formed. (intermediate position), and protrusions 10, 10 that elastically engage with the recess 9 formed on the outer periphery of the fixed engagement body 6 are formed in each of the cut portions.

At the front of the annular body 4, an insertion piece A consisting of a pair of upper and lower elastic legs 7, 7' is formed so as to integrally protrude toward the front. The engaging claws 8 and 8' project upwardly and downwardly, respectively.

Thus, a box 12 into which the elastic legs 7, 7' of the rotary engaging body 5 are inserted is fixed to the shield screen 3.

The box 12 has upper and lower guide rails 17, 17' formed therein so that the upper and lower elastic legs 7, 7' of the rotary engaging body 5 can be smoothly inserted into the box 12. In the middle of the guide rails 17, 17',
Depending on the degree of insertion of the elastic legs 7, 7', the engagement claws 8, 8' formed on the elastic legs 7, 7' engage with the inlet side cut grooves 11, 11' and the back side. Cut groove 13,
13' respectively.

Put your finger on the front end of the box 12,
A knob 15 for moving the shield screen 3 back and forth is formed.

The shield screen 3 also has a finger hook 16 for moving the shield screen 3 up and down.
will be established.

(effect) Next, we will discuss the effect.

The normal usage condition is as shown in FIGS. 2 and 8, in which one of the left and right sides of the shield screen 3 is fixed to the helmet 1 with only rotational freedom; The upper elastic leg 7 and the lower elastic leg 7' of the rotary engaging body 5 engage with a box 12 fixed to the shield screen 3.

That is, in a normal state, the upper and lower elastic legs 7 and 7' of the rotation engaging body 5 are deeply inserted into the box 12, and the upper and lower elastic legs 7 and 7' protrude from both outer surfaces of the upper and lower elastic legs 7 and 7'. The engaging claw 8 and the lower engaging claw 8' are
The guide rails 17, 17' are respectively engaged with cut grooves 13, 13' on the back side provided therein.

The rotary engaging body 5 inserted into the box 12 as described above has a portion of the annular body 4 at the rear of the rotary engaging body 5 fixed to the helmet 1 via the fixed shaft 14. It fits on the outside of the engaging body 6, and the protrusion 10 formed at the cut portion of the annular body 4 is engaged with the recess 9 formed on the outer periphery of the fixed engaging body 6, so that it is fixed. The shield screen 3 is stabilized in the state shown in FIGS. 2 and 8, and the inner surface of the shield screen 3 is in close contact with the front surface of the helmet 1, so that it can be used without being exposed to rain or wind.

When, with one hand, the knob 15 of the box 12 provided only on the left side of the shield screen 3 is grasped with the fingertips and pulled forward, the guide rails 17, 17' of the box 12 fixed to the shield screen 3 are removed. Cut groove 13,1 on the back side of
3' of the elastic leg 7 of the rotary engaging body 5,
As the shield screen 3 is pulled forward, the engaging claws 8, 8' on both the upper and lower outer surfaces of the box 7' move forward, and the box 12 moves forward and comes out along the slope of the deep cut grooves 13, 13'.

Furthermore, if you pull the shield screen 3 forward,
Once each elastic leg 7, 7' is compressed in the vertical direction, the width of the elastic leg 7, 7' becomes smaller.
a guide rail 17 formed in the box 12;
17' becomes slidable.

Therefore, when the shield screen 3 is further pulled forward, the elastic legs 7, 7' of the box 12
The upper and lower engaging claws 8, 8' reach the notch grooves 11, 11' on the entrance side by sliding the guide rails 17, 17' of the box 12, and remove the compressed elastic legs 7, 7. ' expands due to elasticity and engages with the cut grooves 11, 11' on the inlet side, resulting in the state shown in FIG.

Therefore, although only one side of the front surface of the shield screen 3 is distorted, a gap is formed to allow wind to enter.

In this state, by hooking your finger on the finger hook 16 and lifting it upward, you can easily adjust it to the state shown in FIG. 4. Note that when the shield screen 3 is moved upward as described above, the convex portions 10, 10 formed on the annular bodies 4, 4 do not overlap the concave portions 9, which are formed in plurality on the outer periphery of the fixed engagement body 6. It moves elastically step by step.

(Effects) As shown in FIG. 1, in the conventionally known Japanese Utility Model Application No. 53-5111, a shield screen B is provided in front of the window of the helmet A, and the shield screen B is adjusted up and down with respect to the helmet A. In the case where the helmet A is freely screwed, the helmet A is provided with a screw hole C, and the shield screen B is provided with a screw hole C.
A technique is described in which when a bush E having an eccentric through hole D larger than the diameter of the screw hole is fitted and fixed by a fixed shaft F, the bush E is rotated to align the holes.

What is described in the above-mentioned known example is a technique for aligning screw holes when the shield screen B is pivotally fixed to the helmet A. Therefore, the problem associated with the vertical movement of the shield screen B cannot be solved.

In other words, in the known example, the shield screen moves back and forth when the bush E is rotated, but this operation can only be done by loosening the fixed shaft F, so it is necessary to keep the helmet on while driving. I can't do it.

Generally, a shield screen is attached tightly to the front surface of a window. Otherwise, there will be drafts and it will be difficult to drive the motorcycle. Also in the known example, when the fixed shaft F is tightened, the shield screen C is
It is naturally designed to fit tightly against the front of the window.

The problem when installed in the above condition is that since the shield screen is tightly fixed to the front surface of the window, it cannot be smoothly moved up and down about the axis.

The present applicant has already pointed out this point and proposed a mounting device that can move the screen forward and then up and down when installing a shield screen on a helmet. In order to move the screen back and forth, it must be done with both hands, causing the inconvenience of having to stop the car, motorcycle, etc.

However, in the present invention, a shield screen 3 is provided in front of the window 2 of the helmet 1, and the shield screen 3 is attached to the helmet 1 so as to be vertically adjustable. A protruding fixed shaft 14 is provided,
The fixed shaft 14 has an annular body 4 that can rotate around the axis of the shaft 14 and stop at a desired rotation angle position.
, and the annular body 4 has an insertion piece A projecting forward.
A structure of a mounting device for a helmet shield screen, which is provided with a box 12 in which the insertion piece A is inserted into the shield screen 3, and which slides and changes its engagement state when the shield screen 3 is operated back and forth with one hand. Therefore, (i) the helmet 1 is provided with a fixed shaft 14 projecting in a substantially horizontal lateral direction;
An annular body 4 that can be rotated about the axis of the shield and stopped at a desired rotation angle position is provided, and the shield screen 3 is attached to the annular body 4, so that the shield screen 3 can be easily adjusted up and down.

(b) Shield screen 3 into which insertion piece A is inserted
Since the side box 12 has a structure in which the engagement state is changed by sliding when the shield screen 3 is operated back and forth with one hand, it can be adjusted without stopping the motorcycle, thereby eliminating the trouble of stopping the motorcycle.

[Brief explanation of drawings]

Fig. 1 is a side view of a known example, Figs. 2 to 4 are side views of the present invention in use, Fig. 5 is a perspective view of the fixed engagement body, and Fig. 6 is a perspective view of the rotary engagement body and box. 7 is an engaged state diagram, FIG. 8 is an external perspective view, and FIG. 9 is a plan view. Explanation of symbols, 1... Helmet, 2... Window, 3
...Shield screen, 4...Annular body, 5...
Rotating engaging body, 6... Fixed engaging body, 7, 7'... Elastic leg, 8, 8'... Engaging claw, 9... Recess, 10...
...Protrusion, 11, 11'...Inlet side notch, 12...
...Box, 13, 13'...Rear side notch, 14
... Fixed shaft, 15 ... Knob, 16 ... Finger rest, 1
7,17'...Guide rail.

Claims (1)

[Claims] 1. A shield screen 3 is provided in front of the window 2 of the helmet 1, and the shield screen 3 is attached to the helmet 1 so as to be vertically adjustable. 14, the fixed shaft 14 is provided with an annular body 4 that can rotate around the axis of the shaft 14 and stop at a desired rotation angle position, and the annular body 4 has an insertion piece that projects forward. This mounting device for a helmet shield screen is provided with a box 12 in which the insertion piece A is inserted into the shield screen 3 and which slides to change the engagement state when the shield screen 3 is operated back and forth with one hand.