KR920010986B1 - Shield plate mounting structure for helmet - Google Patents

Abstract

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Description

Protective plate attachment structure in helmet

1 is a side view of the helmet with the guard plate fully closed.

2 is an enlarged side view of the main part of the helmet with the protective plate removed.

3 is an enlarged side view of the main part of the helmet in the temporarily fixed state of the protective plate.

4 and 5 are cross-sectional views taken along line IV-IV or V-V of FIG.

6 is an exploded perspective view of the protective plate attachment structure.

7 is an enlarged side view of the main part of the helmet in the fully open state of the protective plate.

* Explanation of symbols for main parts of the drawings

2: hat body 3: window

4: Protective plate 7: Attaching board

10: support container 16: temporary fixing member

17,18,26: fixing groove 24: arc-shaped protrusion wall

30: the first fixed stop 33: the second fixed stop

35: pivot axis 36: first fixed locking jaw

37: second fixed locking jaw 38: third fixed locking jaw

The present invention is to attach a protective plate to the attachment substrate that is firmly attached to the outer surface of the hat body so that it can rotate between the fully open position to fully open the window of the hat body, and the fully closed position to completely close the window. It relates to a protective plate attachment structure in a helmet for.

In the past, this type of protective plate attachment structure has been used with a small screw or cover so as not to fall off the attachment plate of the protective plate (see, for example, Japanese Utility Model Publication No. 63-15314).

By the way, in general, a helmet may be replaced with a transparent type or a sunscreen type according to a user's desire or use condition. According to the conventional structure described above, a small screw or a cover is removed every time it is replaced. Not only is it annoying because it has to be attached, but there is also a concern that the small screw may be lost or the cover may fall, causing injury.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a protective plate attaching structure that can be detached and attached to an attaching substrate of a protective plate without using screws or covers such as small screws.

In order to achieve the above object, the present invention is to form a support cylinder and a pivot axis that can be fitted to be rotated to one another and the other side of the mounting substrate and the protective plate, respectively, and is usually completed between the protective substrate and the protective plate Although the opening position is regulated, the stopper means for releasing the regulation when a certain elastic deformation is applied to the protection plate, and the attachment substrate and the protection plate are mutually different when the protection plate is rotated beyond the fully open position by releasing the restriction. When the protection plate is located in the use range of the fully closed position or the fully open position, it is characterized in that the mounting plate and the protection plate are provided with interlocking means for connecting each other.

In attaching the protective plate in the above-described configuration, first, the support cylinder and the pivot shaft are fitted with each other at a position beyond the fully open position of the protective plate, and then rotated around the pivot shaft toward the closing side of the protective plate rather than the fully open position while giving the protective plate a constant elastic deformation. When exercised, the engaging means is engaged to connect the protection plate to the attachment substrate. In the normal use state of the protection plate, the interlocking state of the engaging means is maintained because the rotational motion beyond the fully open position of the protection plate is prevented by the stopper means.

In removing the protective plate, the operation opposite to the above-described attachment method may be performed. Therefore, the attachment of the protective plate does not use screws or a cover, which can greatly contribute to the simplification of the structure. In addition, the present invention is to form a support cylinder and a pivot shaft that can be fitted to each other so as to rotate each other to one side and the other of the mounting plate and the protective plate, and between the opposite surface of the mounting substrate and the protective plate so that they can be separated from each other It characterized in that the entire protective plate is formed of a transparent synthetic resin by installing the engaging means for connecting.

According to this configuration, the protection plate can be attached to the attachment board while checking the fitted state of the support cylinder and the pivot shaft and the engagement state of the interlocking means through the protection plate, so that screws or a cover are not required for attachment of the protection plate. Therefore, the protection plate can be easily and securely attached to the hat body.

These and other objects, features and advantages of the present invention will become apparent from the following description of the most suitable embodiment with reference to the accompanying drawings.

Next, an embodiment of the present invention will be described with reference to the drawings.

First, in Fig. 1, the left and right side walls of the hat main body 2 of the full face helmet 1 are shown at both ends of the left and right ends of the protective plate 4 to open and close the window 3 opening on the front wall. According to the attachment structure (5) of the invention is attached so as to rotate in the vertical direction. The protective plate 4 is molded from a transparent or otherwise transparent synthetic resin material including both ends.

The attachment structure 5 described above with reference to FIGS. 2 to 6 will be described. As shown in FIG. 2 or FIG. 4, a shallow recess 6 is formed on the hat body 2 and the left and right sides thereof, and a substrate 7 made of synthetic resin is disposed on the bottom of the recess 6 and the upper and lower sides thereof. The points are firmly attached with the small screws (8) and (9).

As shown in FIG. 2 or FIG. 6, the support cylinder 10 is integrally formed on the surface of the attachment substrate 7 so as to surround the upper small screw 8. In the upper part of the inner wall of this support cylinder 10, the wide 1st groove 11 is provided, and in the lower part of the same inner wall, the narrow 2nd groove 12 is respectively provided. At the upper edge of the center of the first recess 11, a small projection 13 (see FIG. 4) is formed. Furthermore, the inner wall of the support cylinder 10 has a first fixing groove 17 extending downward from the front end of the first groove 11 and a second fixing groove extending upward from the rear end of the second groove 12. 18) is installed.

On the surface of the attachment substrate 7, a pair of guide walls 14, 14 'extending straight downward from the support cylinder 10 with the second recess 12 interposed therebetween are projected. The intermediate portions of these guide walls 14 and 14 'are connected to each other by a connecting wall 15.

Between both guide walls 14 and 14 ', temporary fixing members 16 for guiding the vertical movement by these are disposed. The temporary fixing member 16 faces the second groove 12 and at the same time forms a hook 16a bent toward the bottom of the support cylinder 10 at the top thereof, and the handle which rises outward of the attachment substrate 7. 16b is provided in the lower stage. The hook 16a is formed with the inclined surface 19 (refer FIG. 4) in the upper edge.

As shown in FIG. 4, once again, the temporary fixing member 16 is provided with an up and down long hole 22 into which the projection 21 of the connecting wall 15 is inserted, and the bottom wall of the long hole 22 is installed. As the protrusions 21 abut on, the operating position of the temporary fixing member 16 that matches the upper edge of the hook 16a to the inner wall of the support 10 is regulated, and the hook 16a is connected to the connecting wall 15. ), The release position of the temporary fixing member 16 to withdraw from the support cylinder 10 of the hook 16a is regulated. Between the temporary fixing member 16 and the connecting wall 15, a coil spring 23 for biasing the temporary fixing member 16 toward the operating position is provided.

Again, in FIG. 2 or FIG. 6, the attachment substrate 7 is formed in the front of the guide wall 14 with an arc-shaped protruding wall 24 of a larger diameter concentric with the support cylinder 10. The front end of the protruding wall 24 is connected to the skeleton 25 extending from the outer circumferential surface of the support cylinder 10, and the rear end is connected to the guide wall 14. A third fixing groove 26 is provided on the outer periphery of the arc-shaped protruding wall 24.

As for the 3rd fixing groove 26, the edge part side of frame | skeleton 25 is opened as an inlet, and the small circular arc-shaped hook 27 which proximate this inlet protrudes from the attachment substrate 7, and is provided. The tongs portion of the fixing hook 27 faces radially outward, and an inclined surface 27a is formed at the upper edge thereof. The skeleton 25, the skeleton 25 'extending in parallel with the skeleton 25, and the protrusion wall and the hollow arc-shaped encirclement wall 29 each surround the protrusion wall 24 and the fixing hook 27, respectively. It is attached to the attachment substrate 7.

Furthermore, an elastic arm 30 extending forward from the radially outer guide wall 14 of the enclosing wall 29 is provided on the attachment substrate 7, and the elastic arm 30 has its free end outer surface. One or several clasp teeth 31 are provided in the.

Furthermore, the first fixed stop 32 located forward from the outer side of the elastic arm 30 and the second fixed stop 33 located backward protrude from the surface of the attachment substrate 7. have. The first fixed stop 32 has an inclined surface 32a at the front and a vertical surface 32b at its rear side, and the second fixed stop 33 forms the inclined surfaces 33a, 33b before and after.

On the other hand, the pivot shaft 35 which can be loosely fitted to the support cylinder 10 protrudes integrally in the left and right inner surfaces of the protection plate 4. The outer circumference of the pivot shaft 35 is a flange-shaped first or second that can engage the first or second fixing grooves 17, 18 via the first or second grooves 11, 12. The second fixed locking jaws 36 and 37 are formed, and the outer peripheral edges of these fixed locking jaws 36 and 37 are inclined surfaces 36a and 37a. Further, at each end of the shield plate 4, a third fixing catching jaw 38 which can be sequentially engaged with the fixing hook 27 and the third fixing groove 26, and the latch teeth 31 of the elastic arm 30. ) Multiple clasp teeth 39, 39,... And the movable stop 40 which cooperates with the 1st or 2nd fixed stop 32, 33 are integrally formed. The third fixed locking jaw 38 has an inclined surface 38a at the locking jaw portion. Multiple clasp teeth 39, 39,... The silver is arranged in an arc shape around the pivot axis 35 and is connected to each other according to the protection plate 4 and the integral arc-shaped connecting wall 41. The movable stop 40 has an L-shaped cross section and at one end thereof is connected to the connecting wall 41.

Next, the operation of this embodiment will be described.

In order to mount the protection plate 4 to the hat main body 2, first, as shown in FIG. 3, the protection plate 4 in the state in which the 1st fixed stop 32 was accommodated in the L-shaped movable stop 40 was received. When the pivot axis 35 and the center of the support cylinder 10 of the attachment substrate 7 are matched with each other, the first and second fixed locking jaws 36 and 37 become the first, It is possible to enter the second recesses 11 and 12. In addition, the third fixed locking jaw 38 comes in a position that can be engaged with the fixed hook (27). Thus, when the outer end surface of the protective plate 4 is pressed firmly toward the attachment substrate 7 so as to fit the pivot shaft 35 into the support cylinder 10, the first fixing latching jaw 36 is the first recess 11. ) Is engaged with the small projection 13 while sliding the inclined surface (36a), and the second fixed locking jaw (37) enters the second groove 12, the temporary fixing member in the inclined surface (37a) By pressing the inclined surface 19 of 16, the temporary fixing member 16 resists the pressing force of the spring 22 to retreat to the non-operational position once, and the second fixing locking jaw 37 is moved to the second groove 12. ), The temporary fixing member 16 returns to the operating position according to the pressing force of the spring 23 to engage the hook 16a with the second fixing locking jaw 37.

In addition, since the pressing force against the attachment substrate 7 at the end of the protective plate 4 also acts on the third fixed locking jaw 38, the locking jaw 38 has its inclined surface 38a fixed to the inclined surface of the hook 27. It presses against 27a) and engages with the fixed hook 27 while generating elastic deformation with each other. In this way, the protective plate 4 is temporarily fixed to the attachment substrate 7.

Subsequently, when the protection plate 4 is rotated downward around the pivot shaft 35 supported by the support cylinder 10, the movable stop 40 may raise the inclined surface 32a of the first fixed stop 32. When the end of the protective plate 4 slightly outward elastic deformation, the temporary fixing state of the protective plate 4 is maintained. Then, when the movable stop 40 rides over the first fixed stop 32, the end of the protective plate 4 returns to the circular shape, and the movable stop 40 is vertical to the vertical surface 32b of the first fixed stop 32. ) (See Figure 7).

In the meantime, the first and second fixed locking jaws 36 and 37 are engaged with the first and second fixed grooves 17 and 18 of the support cylinder 10, respectively, and the third fixed locking jaw is provided. 38 is guided to the fixing hook 27 is carried in the engagement position with the third fixing groove (26). The third fixing locking jaw 38 engaged with the third fixing groove 26 is prevented from being displaced from the third fixing groove 26 by preventing the radially outward displacement by the enclosure wall 29. In this way, the attachment work of the protection plate 4 is completed.

After the attachment of the protection plate 4, the rotation of the protection plate 4 upwards to fully open the window 7 of the hat main body 2, the movable stop 40 to the first fixed stop 32 The fully open position of the protection plate 4 is regulated in contact with the vertical surface 32b. In accordance with this regulation, escape from the fixing grooves 17, 18, and 26 of the fixed locking jaws 36, 37, and 38 is prevented, thereby securing the attachment state of the protection plate 4. .

When the protection plate 4 is rotated to the lowest fully closed position (see FIG. 1) so as to completely close the window 3, the movable stop 40 is inclined at the front part 33a of the second fixed stop 33a. ), The guard plate 4 is held in the fully closed position in accordance with its engaging force by engaging the rear inclined surface 33b with a restoring force inward of the end of the guard plate 4.

In addition, in the rotational movement range between the fully open position and the fully closed position of the protective plate 4, the clasp teeth 31 have a plurality of clasp teeth 39, 39,... According to the elasticity of the elastic arm 30. Can be held at any rotational position of the guard plate 4 according to its engagement force.

When removing the protection plate 4 from the hat body 2, first, the side of the protection plate 4 is deformed outward while avoiding the interference between the movable stop 40 and the first fixed stop 32. The protection plate 4 is rotated slightly above the fully open position to accommodate the first fixed stop 32 in the L-shaped stop 40. In this way, the protection plate 4 is returned to the above-mentioned temporary fixed state (state of FIG. 3).

Subsequently, the temporary fixing member 16 is pulled down by hanging a finger on the handle 16b, and the hook 16a is detached from the second locking latching jaw 37. In this state, when the end of the protective plate 4 is pulled outwardly, the first fixed locking jaw 36 is forced from the small projection 13 and the third fixed locking jaw 38 is forced from the fixed hook 27, respectively. Will leave. Thus, the end of the protective plate 4 is separated from the attachment organ (7).

However, the protective plate 4 is transparent to the left and right ends thereof as well as the central portion thereof, so that the protective plate 4 is detached and attached. Can be observed, and thus the work of detaching and attaching can be done easily and accurately. In addition, there is also a convenient advantage that can be visually observed and inspected for the failure of the attachment structure 5 in a state where the protective plate 4 is attached.

In the above, the locking projections 36, 37, 38 and the fixing grooves 17, 18, and 26 constitute the engaging means of the present invention. In addition, the small projection 13, the temporary fixing member 16, the fixing hook 27 and the fixed locking jaw (37), (37), (38) constitute the temporary fixing means of the present invention, the first fixing stop The stopper 32 and the stopper 40 constitute a stop means.

Furthermore, the present invention is not limited to the front helmet, but can be applied to other forms, such as a jet type. The elements on the attachment substrate 7 of the attachment structure 5 in the above-described embodiment may be provided on the protection plate 4 and the elements on the protection plate 4 on the attachment substrate 7, respectively.

Claims (10)

A protective plate is attached to the attachment organ securely attached to the outer side of the hat body so that it can be rotated between a fully open position with the hat body window fully open and a fully closed position with this window fully closed. In the protective plate attaching structure of a helmet, a supporting cylinder and a pivoting shaft are formed on one side and the other side of the attaching plate and the protecting plate so as to be rotatable with each other, and between the attaching plate and the protecting plate, the opening of the protective plate is usually completed. Although the position is regulated, the stopper means for releasing the regulation when a certain elastic deformation is given to the protector and the separation between the attachment board and the protector when the protector is rotated beyond the fully open position by releasing the restriction. It is possible, however, when the guard plate is in the fully closed or fully open position range of use. And a protective plate mounting structure in a helmet, characterized in that a meshing means for connecting the cover to each other. The protective plate attachment structure according to claim 1, wherein the attachment plate and the protection plate are provided with temporary fixing means for connecting the attachment plate and the protection plate so as to be separated from each other when the protection plate is at a predetermined position beyond the fully open position. The protective plate attachment structure according to claim 1, wherein the engaging means includes a fixing groove provided on an inner surface of the supporting cylinder, and a flange-shaped fixing engaging jaw provided on the pivot shaft so as to be engaged with the fixing groove. 4. A groove according to claim 3, wherein a groove is formed in the inner surface of the support cylinder to allow the entry of the fixed locking jaw into the support cylinder when the protection plate is in a constant position beyond the fully open position, and the groove is fixed in the groove. A protective plate attachment structure for a helmet in which a temporary fixing member is disposed so as to move back and forth between an operation position engaged with the jaw and a release device for releasing the engagement. 5. The temporary locking member according to claim 4, wherein the temporary fixing member is urged toward the operating position according to the bulleting means, and the temporary fixing member and the fixed locking jaw resist the pressing member of the temporary locking member upon entry into the support barrel of the fixed locking jaw. A protective plate attachment structure in a helmet in which inclined surfaces that can be slid to each other are formed because they are retracted. 6. A separate fixing groove according to claim 3, 4 or 5, wherein the engaging means is provided on one side of an arcuate projecting wall of larger diameter concentrically with a support cylinder formed on one side of the attachment substrate and the protection plate, in particular. A protective plate attaching structure for a helmet having an attaching substrate and another fixing engaging jaw provided on the other side of the protective plate so as to engage with the fixing groove. The protective plate attachment structure according to claim 6, wherein an arcuate protruding wall and a concentric arcuate circumferential wall are formed so as to prevent the detachment from another fixing groove of the other fixing locking jaw. 7. The method according to claim 6, wherein a small arcuate fixation hook is provided on the extension line of the arcuate protruding wall, and the fixation hook and the other fixation jaw are fitted in accordance with the fitting of the base cylinder and the pivot shaft. A protective plate attachment structure in a helmet that can be slidably bonded to each other because elastic deformations that allow engagement are generated. 6. The stopper according to any one of claims 1, 2, 3, 4 or 5, wherein the stop means comprises a fixed stop provided on the surface of the attachment substrate and a movable stop fixed to the inner surface of the protective plate. On one side of both stops, the rotational motion in the direction beyond the fully open position in the use range of the protective plate is located at a position beyond the vertical opening where the other stop can engage and the safety opening of the protective plate to regulate the fully open position. A protective plate attachment structure for a helmet according to claim 1, wherein an inclined surface on which the other stop is slid to form a fixed elastic deformation to the protective plate is provided for the rotational movement in the range of use. A protective plate attachment structure in a helmet for attaching a protective plate to an attachment board firmly attached to the outer surface of the hat body so that rotational movement can be freely opened so that it opens and closes the window of the hat body, on the other side of the attachment board and the protection plate. Forming support cylinders and pivot shafts that can be fitted to rotate with each other so as to be fitted to each other, and between the opposite surfaces of the attachment substrate and the protection plate, the interlocking means for connecting them so as to separate them from the outside of the protection plate can be viewed. A protective plate mounting structure for a helmet, wherein the entire protective plate is molded from a transparent synthetic resin.