JPH02234906A - Helmet - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a helmet that is worn on the head of a rider of a motorcycle or the like.

(Prior art) In a conventional helmet of this kind, when the windshield plate for the opening on the front of the main body is rotated around both sides of the main body to open and close the opening, the shaft support on both sides of the windshield plate In minutes,
By rubbing the uneven parts between the windshield side and the main body side, it provides appropriate resistance and moderation to opening and closing, and holds the windshield in a fully open or fully closed state, or in an intermediate position. There is.

(Problems to be Solved by the Invention) In the case of the conventional helmet described above, when opening and closing the windshield plate, the uneven parts were rubbed together, so the uneven parts were easily worn out and there was a problem in durability.

The present invention has been made in view of these points, and an object of the present invention is to improve the durability of a mechanical part that provides resistance and moderation to the opening and closing of the windshield.

[Structure of the invention]

(Means for Solving the Problems) The helmet of the present invention has bases l1 attached to both sides of the main body 1, and holders 4l pivotably supported on the bases 11 on both sides so as to be rotatable in the vertical direction. In the helmet, a holder 41 is attached to one of the bases 11 on both sides and the holders 4l on both sides.
A movable piece 20 is provided with a free end as a distal end extending in a direction away from the rotation center with the proximal end on the rotation center side as a fulcrum, and an engaging portion 22 is provided at the distal end of the movable piece 20.
The bases 11 on both sides and the holders 4 on both sides are provided.
1, a plurality of concave portions 44 that are sequentially engaged with the engaging portion 22 when the holder 41 rotates, and a convex portion 45 between each of the concave portions 44 .
The holder 41 is arranged in an arc shape with respect to the center of rotation of the holder 41 through the holder 41.

(Function) The helmet of the present invention has a holder 4 that supports the windshield plate 5l.
When rotating, the engaging portion 22 sequentially engages the plurality of recesses 44 while passing over the convex portion 45, thereby providing appropriate resistance and moderation to the opening and closing of the windshield plate 51, and at this time, the engaging portion 22 Part 22
Since the movable piece 20 provided with is elastically deformed, the engaging portion 2
2 and the convex portion 45 are hard to wear.

(Example) An example of a helmet of the present invention will be described with reference to the drawings.

FIG. 1 is an exploded perspective view of the left side portion of the helmet, and since the right side portion on the opposite side has a symmetrical configuration, the left side portion will be explained, and the right side portion will be omitted as it has the same configuration.

In Fig. 1, reference numeral 1 denotes a roughly spherical body that covers the head of the human body, and this body 1 has an outer shell made of a laminate of polyurethane resin and glass fiber, and a shock absorbing shell made of foamed polystyrene provided inside the shell. In this embodiment, an opening 2 for the wearer's face is formed at the front, and an opening for the wearer's neck is formed at the bottom. , as a jet type in which the wearer's chin is exposed, the front opening 2 and the lower opening are connected, and a pair of upper and lower nuts 3.4 are embedded in each side of the main body 1. There is.

Reference numeral 11 denotes a plate-shaped base made of polyacetal resin, and the base 11 is attached at the lower rear side to the nut 4 on the lower side of the main body 1 with a bolt 12, and the upper rear side is attached to the nut 4 on the lower side of the main body 1. A circular through hole 13 is formed for the nut 3 on the upper side of the through hole 13, and rectangular locking holes 14 are formed above and below this through hole 13, respectively.
3 and a pair of locking holes 14, an annular protrusion 15 is formed on its outer surface.

Further, as shown in FIGS. 2 and 3, a slit 18 is formed in the front side of the base 11, which is close to a circle except for the side of the through hole 13, and this arc-shaped slit 18 By forming a circular hole 19 in the center of
An annular movable piece 20 is formed, and regulating protrusions 21 are formed on both sides of the movable piece 20 from the outer side of the slit l8.

The movable piece 20 has a distal end extending away from the through hole 13 as a free end, and a proximal end on the through hole 13 side connected to the other part of the base 11 as a fulcrum. An engaging protrusion 22 as an engaging portion is formed on the outer surface of the displaceable tip, and in particular, as shown in FIGS. 2 and 3 of the movable piece 20, The regulating protrusion 21 regulates the displacement in the direction of arrow R.

Note that the engagement protrusion 22 at the tip of the movable piece 20 can be displaced not only in the direction of arrow R but also in its length direction;
Here, since the main body 1 is located inside the base 11, it can be displaced in the direction away from the main body 1 in the length direction, and furthermore, since the movable piece 20 is annular, the engaging protrusion 22 It can also be displaced in the direction in which the circle expands and contracts, that is, in the direction in which it approaches or moves away from the through hole l3.

Further, an arcuate guide hole 25 centered on the through hole l3 is formed at the rear lower part of the base l1, and locking protrusions 2 are formed on the outer side near both ends of the guide hole 25, respectively.
6. 27 is formed toward the inner side, and the pair of locking protrusions 28. Arc-shaped slits 28 are formed in the base U at the lower side of 27, and the slits 28 make it easy to elastically deform the vicinity of each of the pair of locking protrusions 26 and 27, and the locking The protrusions 26 and 27 can be displaced in the vertical direction.

Further, a hooking recess 3I is formed on the rear edge of the base 1l, as shown in FIG. 4, and a protrusion 3I is formed on the front edge of the base 1l, as shown in FIG. 32 is formed, and a slide guide part 33 is formed rearward from the base of this protrusion 32, and a lock piece 34 is provided on this slide guide part 33 so as to be slidable in the front and back direction.

This lock piece 34 is made of polycarbonate,
A slide part 35 that is inserted into the slide guide $33 of the base 11 from the front and a head 36 that moves forward and backward into the protrusion 32 of the base l1 by sliding are integrally formed, and the slide part 35 has a locking protrusion. 37 is provided, and this locking protrusion 37 restricts the pulling out of the slide part 35 inserted into the slide guide part 33, determines the sliding range of the lock piece 34, and prevents the lock bead 34 from coming off. A slide lock recess 38 that opens toward the protrusion 32 of the base 11 is formed in the head 36 .

Reference numeral 41 denotes a plate-shaped holder made of a composite material of ABS resin and polycarbonate, and this holder 4l has a circular through hole 42 formed in the upper part of the rear side, and an arc-shaped hole centered around the through hole 42 in the lower part. A slit 43 is formed on the outer side of the slit 43, and a plurality of recesses 44 that engage with the engagement protrusions 22 of the movable piece 20 of the base 11 are provided between each convex portion 4.
The guide hole 25 of the base 11 and the locking protrusion 26 are formed on the inner surface of the lower rear side. A guide protrusion 47 for 27 is formed.

Further, a plurality of protrusions 50 are formed on the inner surface of the front side of the holder 41, and the left side of a curved windshield plate 51 made of polycarbonate and having translucency is attached to the protrusions 50 by ultrasonic welding. ing.

The holder 4I is the base! It is assembled on the outside of the base 1l, and its through hole 42 is connected to the annular protrusion 1 of the base 1l.
The engagement protrusion 22 of the movable piece 20 of the base 11 engages with the slit 43 of the movable piece 5, and the engagement protrusion 22 engages with the slit 43 of the movable piece 20 of the base 11. , and the guide protrusion 47 is inserted into the guide hole 2 of the base l1.
5, and in this state, insert the washer 54 into the through hole 42.
, and then insert the bolt 55 from the outside of the washer 54 into the through hole 42 of the holder 41 and the through hole l3 of the base 11.
The main body 1 is supported by the base 11 so as to be rotatable in the vertical direction by being inserted into the main body 1 and screwed into a nut 3 on the upper side of the main body 1.

Note that the washer 54 is made of polyacetal resin, and has a flange portion 56 that presses the holder 41 against the base 11.
and a boss portion 57 that fits inside the protrusion l5 of the base l1.
This boss portion 57 is formed with a locking protrusion 58 that fits into the locking hole 14 of the base l1, and the bolt 5
Numeral 5 fixes the base 11 to the main body 1 together with the bolts 12 mentioned above.

Further, the surface of the holder 41 is coated with a thin copper film and then chromium plated.This chromium film increases the hardness of the surface, making it less likely to be scratched, and making the surface slippery. is getting better.

In this state, the holder 41 holds the windshield plate 51 movably up and down with respect to the opening 2 on the front surface of the main body 1 together with a holder on the opposite side (not shown), and in a state in which it is rotated upward, The windshield plate 51 is positioned above the main body 1 and the opening 2 is opened, and when it is rotated downward, the windshield plate 5l is positioned in front of the opening 2 and the opening 2 is closed. state.

When the windshield plate 51 moves up and down, the holder 4l
rotates in the vertical direction, but at this time, the engaging protrusion 22 of the movable piece 20 of the base +1 moves within the slit 43 of the holder 4l, and the guide protrusion 47 of the holder 4l moves within the guide hole 25 of the base 11. The engaging protrusion 22 moves over the convex part 45 in the concave part 46 in the slit 43 and sequentially engages with the plurality of concave parts 44, thereby providing appropriate resistance to the entire process of opening and closing the windshield plate 51. In addition, when the windshield plate 51 is in the fully open state or fully open state, the guide protrusion 47 engages with the locking protrusion 26 or the locking protrusion 2.
7, the windshield plate 51 is stably held by being locked to the end of the guide hole 25.

When the engagement protrusion 22 climbs over the convex portion 45, the annular movable piece 20 provided with the engagement protrusion 22 is elastically deformed, and the engagement protrusion 22 is moved away from the main body 1 in the direction of the arrow R. Furthermore, since the holder 4l can be displaced in a direction approaching the center of rotation, the engagement protrusion 22 and the convex portion 45 are less likely to wear out, and the guide protrusion 47 can be moved closer to the locking protrusion 26. 27
When getting over the slit 28, the locking protrusion 26,
27 can be displaced downward, the guide protrusion 47 and the locking protrusion 26. 27 is hard to wear out, and
Since the restricting protrusion 21 restricts the movable range of the movable piece 20 in the direction of the arrow R, the movable piece 20 will not be plastically deformed or broken, and therefore the windshield plate 5l will be durable against repeated up and down movements. expensive.

In addition, since the movable piece 20, the regulating protrusion 21, and the engaging protrusion 22 are formed on the base 11, and the corresponding concavo-convex portion 46 is provided on the holder 41, the number of parts for this mechanical part does not increase and assembly is easy. Can be done.

Reference numeral 61 denotes a plate-shaped cover made of polycarbonate, and on the inner surface of the rear side of this cover 61, as shown in FIG. A lock piece 63 is formed on the front edge of the cover 61, as shown in FIG.

This cover 61 is assembled on the outside of the holder 41, its hooking piece 62 is hooked on the hooking recess 31 of the base 1l, and its locking piece 63 is attached to the holder 4! The lock piece 63 is engaged with the front of the protrusion 32 of the base 11 through the lower side, and placed on the slide part 35 of the lock piece 34 which has been pulled out from the slide guide part 33 of the base 11. When the lock bead 34 is slid and the slide portion 35 is pushed into the slide guide portion 33 of the base II, the slide lock recess 38 of the head 36 of the lock piece 34 is caught on the lock piece 63 of the cover 61, and the cover is closed. 61 is fixed to the base 11.

That is, in this state, the cover 61 has the hook recess 31 of the base 11 on the hook piece 62 and the lock piece 63.
Since the slide lock recess 38 of the lock piece 34 covers the slide lock recess 38 of the lock piece 34, vertical movement, forward movement, and left side movement are prevented. Since the cover 11 is engaged with the base 11, rearward movement is prevented, thereby causing the cover 11 to be attached to the base 11.
is completely fixed.

Note that when replacing the windshield plate 51, the lock bead 34
When you slide the head 3 of the lock piece 34 forward,
The slide lock recess 38 of 6 is the lock piece 6 of the cover 61
3, the cover 61 can be removed. After removing the cover 61, remove the bolts 55, and the holder 4
1 can be removed from the base 11, so the windshield plate 5 can be removed from the base 11.
1 can be removed together with the holder 41, and after replacing it with another windshield plate 51, the holder 4l and the cover 61 can be attached in order as described above.

In addition, when attaching and detaching the cover 61, elastic deformation of members such as locking claws is not utilized, so even if the cover 61 is repeatedly attached and detached, there is little plastic deformation and wear. However, the hook piece 62 of the cover 61 locks directly to the base, and the lock piece 63 of the cover 61 locks to the base 11 via the lock bead 34, so the lock piece 34 This makes it possible to reliably prevent the cover 61 from moving in the removal direction, thereby ensuring that the cover 61 is securely and firmly fixed, and also making it extremely easy to attach and detach the cover 61.

This concludes the description of this embodiment, but the present invention is not limited to the embodiments described above. For example, in this embodiment, the movable piece 20, the regulating protrusion 2I, and the engagement portion Although the protrusion 22 is provided on the base 11 and the concavo-convex portion 46 corresponding thereto is provided on the holder 41, the relationship between the two may be reversed, and the materials of each component are not limited to those mentioned above, and various materials may be used. You can select the appropriate material.

〔Effect of the invention〕

As described above, according to the present invention, when the holder that supports the windshield plate is rotated, the engaging part passes over the convex part and engages in sequence with the plurality of recesses, thereby opening and closing the windshield plate appropriately. It provides resistance and moderation, and at this time, the movable piece with the engaging part deforms elastically, so the engaging part and the convex part are hard to wear, and therefore, the windshield plate is resistant to repeated up and down movements. Moreover, regarding this mechanism part, the movable piece and the engaging part are formed on one of the base and the holder, and the corresponding recess and protrusion are provided on the other of the base and the holder.
The number of parts does not increase and assembly is easy.

[Brief explanation of drawings]

The figures show one embodiment of the helmet of the present invention, in which Fig. 1 is an exploded perspective view of the left side part, Figs. 2 and 3 are explanatory views showing different states of the relationship between the base and the holder, and Fig. 4
5 and 5 are cross-sectional views at different positions showing the relationship between the base and the cover, respectively. 1...Body, 2...Opening, 11...Base, 20...
Movable piece, 22.. Engaging protrusion as an engaging portion, 41.. Holder, 44.phi.. recessed portion, 45.. convex portion, 51. windshield plate. Takako l town

Claims (1)

[Claims] (1) Bases are attached to both sides of the main body, holders are pivotally supported on the bases on both sides so as to be rotatable in the vertical direction, and windshield plates that are translucent to the opening on the front of the main body are attached to the holders on both sides. In a helmet that supports both sides, one of the bases on both sides and the holders on both sides has a free end that extends in a direction away from the rotation center using the base end on the rotation center side of the holder as a fulcrum. A movable piece is provided, and an engaging part is provided at the tip of the movable piece, and a plurality of the engaging parts are sequentially engaged with the bases on both sides and the other of the holders on both sides when the holder is rotated. A helmet characterized in that concave portions are arranged in an arc shape with respect to the center of rotation of the holder with convex portions interposed therebetween.