EP0289569A1 - Casque de protection a visiere pivotante et encliquetable, notamment pour motocylistes. - Google Patents

Casque de protection a visiere pivotante et encliquetable, notamment pour motocylistes.

Info

Publication number
EP0289569A1
EP0289569A1 EP87907500A EP87907500A EP0289569A1 EP 0289569 A1 EP0289569 A1 EP 0289569A1 EP 87907500 A EP87907500 A EP 87907500A EP 87907500 A EP87907500 A EP 87907500A EP 0289569 A1 EP0289569 A1 EP 0289569A1
Authority
EP
European Patent Office
Prior art keywords
locking
visor
protective helmet
helmet according
latching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87907500A
Other languages
German (de)
English (en)
Other versions
EP0289569B1 (fr
Inventor
Artur Fohl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19863639261 external-priority patent/DE3639261A1/de
Priority claimed from DE8708787U external-priority patent/DE8708787U1/de
Application filed by Individual filed Critical Individual
Priority to AT87907500T priority Critical patent/ATE65166T1/de
Publication of EP0289569A1 publication Critical patent/EP0289569A1/fr
Application granted granted Critical
Publication of EP0289569B1 publication Critical patent/EP0289569B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/18—Face protection devices
    • A42B3/22—Visors
    • A42B3/221—Attaching visors to helmet shells, e.g. on motorcycle helmets
    • A42B3/222—Attaching visors to helmet shells, e.g. on motorcycle helmets in an articulated manner, e.g. hinge devices

Definitions

  • the invention relates to a protective helmet, in particular for motorcyclists, with a visor covering the face opening, which is pivotally mounted on the side of the helmet shell and at least in its closed position by means of a locking device consisting of a locking cam and a locking element provided with at least one locking recess, and one of the locking cams and the locking element in the direction of the pivot point of the visor against each other spring element, can be locked, the locking element or locking cams being pivotally mounted with the visor disk.
  • Conventional adjusting devices are relatively complicated to build from many individual parts, which makes a helmet considerably more expensive.
  • cheap spring elements made of plastic are often used for locking the visor in the protective helmets.
  • these have the major disadvantage that if they are constantly under load - as is the case with a sighting device - they tend to "creep", ie the forces go to zero over time.
  • Visor devices of this type are a great safety risk because, for example, a sudden jump due to the drop in the spring tension at high speed can put the driver in a very dangerous situation, which must be avoided in any case.
  • metal springs could not be optimally dimensioned due to their significantly lower expansion stress in the existing, structurally specified installation space, so that they can achieve the required, predetermined number of load cycles without breaking. For this reason, e.g. Simple, metallic flat springs, which are cheap to manufacture, have so far not been usable.
  • the sighting device with detent should also be designed in such a way that even after replacement without special adjustment and adjustment manipulations, the pivotal movement and the grating function properly, since inadequate fastening or inadequate grating, as already mentioned, can lead to serious accidents if
  • the visor which is closed as such, is torn open due to improper replacement or functioning of the grid by the wind pressure and the driver is thus exposed to the full wind pressure with a simultaneous restriction of the field of vision and possibly shear forces on the head.
  • the visor device should be designed so that it is suitable for both preformed visor disks and flexible visor disks, which are used when using initially flat plates, whereby multilayer disks can also be used as flexible visor disks.
  • opening of the visor should be reliably prevented, regardless of whether the rim of the visor rests on the edge of the face opening of the helmet, or so with its edge in around the opening in the face of the helmet engages so that the outer contour of the helmet runs continuously over the visor.
  • the object of the invention is to provide a protective helmet with a visor device which is cheap to manufacture and easy to use and which moreover guarantees great safety even when driving at high speeds, even with a very long useful life of the helmet, so that even when Swiveling the head prevents an unwanted opening of the visor.
  • the locking forces required to hold the visor in the closed position should remain largely constant over the period of use of a helmet, and this when using simple springs in conjunction with a simple construction consisting of a few parts.
  • a locking element which is non-rotatably connected to the visor disk and which is rotatably guided inside the bearing piece on a hub part together with the visor disk.
  • a locking cam is provided in the bearing piece, which cooperates with the locking element on the visor or its or its recess.
  • Locking cams and locking element are resiliently biased against each other so that a perfect interaction between the locking cam and locking element is guaranteed.
  • the locking element and the visor provided with a hub for the pivoting movement are e.g. detachably attached to the side of the helmet shell using a screw.
  • the helmet shell may have a recess in this area for receiving the bearing piece.
  • the bearing and latching element itself can be provided with a segment-like projection, on the periphery of which latching notches are arranged, which cooperate with a leaf spring having at least one latching hump and fastened in the bearing piece itself.
  • the locking notches should be designed with different depths, in particular the two locking notches for the end positions should be formed deeper than the notches for securing the Intermediate positions, stable end positions of the sighting device are reached.
  • the latching recess of the latching element assigned to the closed position is offset such that, depending on the spring-loaded latching cams, a biasing force is exerted on the side wall of the latching recess and thus on the latching element and the visor is exercised in the closing direction.
  • the latching recess associated with the open position of the visor is also displaced in the latching element in such a way that a bias in the direction of the open position is also achieved in this position, so that an absolutely stable and quiet position of the visor is also guaranteed in the open position and even when using the helmet with the visor open, for example when driving slowly or when moving on foot, there is no need to accept wobbling or vibration of the visor.
  • a latching recess of a latching element is arranged and shaped such that, in order to generate the pretensioning force, a displacement of the engagement points of the latching cam over the entire length of the ramp surface of a latching recess has a pivoting angle range of the visor disk of approximately 5 ° to 15 °, but preferably 8 °.
  • the angle between the direction of force derived from the flank of the locking cam and the direction of force of the spring element itself in the direction of the pivoting angle between 25 ° and 45 ° is preferred, according to another development of the inventive concept however chosen with 35 °.
  • the spring element is exposed to a very high load and is therefore a vulnerable component, also with regard to the simultaneous fulfillment of the hard endurance test to which such sighting devices are subjected.
  • the spring element as a single-layer or multi-layer leaf spring, wherein preferably only the spring leaf opposite the locking element forms an arcuate or angular locking cam when using a multi-layer leaf spring.
  • Fig. 1A a corresponding helmet in one
  • Fig. 6 a plan view of a section of the
  • Fig. 7 the storage and locking elements of a possible
  • Embodiment on one side of the helmet shell in an exploded view Embodiment on one side of the helmet shell in an exploded view
  • 8 a longitudinal sectional view analogous to FIG. 4 through the bearing and fastening parts of a further embodiment with an enlarged locking elbow
  • 8A a plan view of the inside of the locking mechanism according to FIG. 8
  • Fig. 9 locking element and end of the visor
  • Fig. 20 a plan view of a structural unit of the visor with bearing and locking element.
  • FIG. 1 shows schematically in perspective view a helmet with helmet shell 1 and visor disk 2.
  • the visor disk 2 covers the face opening in the helmet shell.
  • the visor is pivotally attached to the side of the helmet shell of the helmet, so that the face opening can be opened by opening and closed again by folding down.
  • the edge of the visor disc lies flush against the correspondingly shaped helmet shell or an edge recess in the helmet shell.
  • a recess 3 is provided in the front of the helmet shell 1 for reaching under the edge of the visor plate 2.
  • Fig. 1A shows the helmet in a side view, the mutual spatial assignment of helmet shell 1, visor 2, bearing point of the visor and swivel angle are dimensioned so that the effect of these individual parts can be better understood later in connection with the explanation of individual parts.
  • screw-on surfaces 4 are provided on the helmet shell, which have depressions 5 for fixing a bearing piece to be fastened there, as will be explained.
  • the bearing piece itself is fastened with a screw.
  • a fastening nut 6 is arranged in the screw-on surface 4.
  • FIG. 3 shows a top view of the development of a visor disk 2 in the form of a flat plate, as can be produced from transparent, bendable plastic.
  • This plate gets its shape, for example, by punching. It has at its two ends 8 and 9 two recesses 10 and 11 for receiving a bearing and locking element, the design, structure and function of which will be explained. In the area of the ends, lugs 7 are also left, which form a stop gap, the function of which will also be explained, with the ends 8 and 9.
  • the mounting of the visor disc 2 on the outside of the helmet can be seen essentially in a sectional view from FIG. 4.
  • the section of a longitudinal section of a helmet shell 1 shown there carries in the fastening area a fastening nut 12 for receiving a screw 14, via which a bearing piece 13 is screwed on.
  • the fixation is carried out by lugs 15 and 16 ( Figure 5) which engage in the recesses 5 ( Figure 2) on the helmet shell.
  • the bearing piece 13 has in a hub part 17 through which the screw 14 is guided and on which a latching element 18 is rotatably mounted together with the visor disk 2 with play.
  • the locking element 18 has a collar 19 toward the helmet shell, the surface of which facing the helmet shell slides on the outer surface of the helmet shell in the fastening area.
  • the side of the latching element 18 facing away from the collar has an extension 20 (FIG. 7) which extends from the bore 21 in the form of a segment.
  • the outer contours of the segment-shaped projection 20 recesses 10 and 11 in the visor 2 are adapted.
  • the detent spring is designed as a two-part leaf spring 23, 24, the leaf spring 23, which is assigned to the detent recesses, having a detent bump 31 which, as can be seen from FIGS. 5 and 6 can be seen, engages accordingly in the notches 22.
  • the right-hand recess 22 assigned to the closed position is arranged such that the detent cam 31 of the detent spring 23 does not come to full detent depth, but rests laterally and exerts pressure on the detent element and thus on the visor disc Exercises closing direction.
  • the locking recess is offset so that a displacement of the points of application to generate the Oorspannkraft by the locking cam over the entire length a ramp surface of the recess 22 forms a swivel angle range of the visor 7 between 5 ° and 15 °, but preferably 8 °.
  • a holding force B at the latching distance r must be correspondingly high, specifically to generate a holding force A at the lower edge of the visor by a factor R / r greater than the holding force B.
  • a two-layer spring is provided for this, as can be seen first in FIG. 7, instead of a simple locking spring, the upper leaf spring 23 facing the locking recess having a locking hump 31 and for spatial fixing in the holding part 13 on one side 42 is angled.
  • this spring which is provided with a locking hump, will be designed somewhat thinner than the underlying flat support spring 29, which can be subjected to a correspondingly higher load due to its smooth shape.
  • this spring (retaining lug 40) is also angled, even if this leaf spring itself does not have to be fixed exactly in space.
  • FIG. 8A shows this embodiment form to the figures 4 and 5 analog representations. It can be seen in FIG. 8A that the gap formed on the nose 16 with the ends of the visor disk and the nose comes to rest in the open position.
  • Fig. 9 shows a further embodiment of a storage and Locking element 18 'and Fig. 10 shows that in the context of the invention, the bearing end of the visor 2 and locking element 18''can also be formed in one piece.
  • FIG. 11 shows a modification of the locking element arrangement in a further embodiment, in which a separate bearing piece 13 is omitted.
  • the swivel bearing of the visor disk is formed by a clip-in bearing journal 47 which is pressed in by aligned bores in the visor plate 48 and in the helmet shell 48 '.
  • the latching element is attached in the form of an arcuate strip 46 on the inside of a visor plate 45 and is guided in a corresponding recess 42 of the helmet shell in the area of the bearing surface 4.
  • the arc-shaped locking bar 46 works together with a 2-layer locking spring 40 and 41 also held in notches 43 in the recess 42.
  • the figures 12-18 show different spring configurations.
  • the leaf spring 41 provided with locking cams is spatially fixed via an angled end, while the continuous leaf spring 40 ′ underneath is only supported accordingly. 13, as already described above, both the lower leaf spring 40 and the upper leaf spring 41 are laterally fixed via angled tabs.
  • leaf spring 40 which is fixed spatially and further leaf springs 40 'and 40''in Can be provided within the scope of the invention.
  • a multi-layer leaf spring can also be produced in one piece by bending the spring band accordingly around a retaining pin 27, whereby the one-piece detent spring 23 acting as a double-layer leaf spring is spatially fixed at the same time as the retaining pin 27 is spatially fixed .
  • the latching cam can also be formed by a special, preferably made of plastic additional part 50, which is correspondingly pushed onto a one or two-layer leaf spring and fixed in the position corresponding to the mode of action of the latching.
  • plastic additional part 50 which is correspondingly pushed onto a one or two-layer leaf spring and fixed in the position corresponding to the mode of action of the latching.
  • one or two very stable, continuous leaf springs can then be used to generate the latching pressure, which are not in any way weakened in any way by cam formation. This then also makes it possible, as can be seen from FIG. 18, to use a simple thick leaf spring.
  • the springs do not require any special lateral fixation. Only the additional cam must be guided laterally with a slight play to the depth of the locking recesses.
  • the figures 19 and 20 show an advantageous further development of the overall visor, especially from the point of view of the supply of spare parts. As already explained at the beginning, it is important that a visor disk can be exchanged quickly and without problems. 19 in accordance with FIGS. 8, 8A and 9, to mount an additional securing plate 60 onto the bearing piece by clipping, gluing, welding or the like during assembly, which captively hold the visor plate and the locking parts in a transport-safe manner.
  • the entire visor device can be attached to the helmet by means of two fastening screws 14 'and 14''.
  • the springs can have different dimensions on both sides of the helmet.

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

Le casque décrit comporte une visière (2) recouvrant l'ouverture de vision, qui est montée pivotante et latéralement sur la coque du casque et, au moins dans sa position fermée, est encliquetable au moyen d'un dispositif d'encliquetage comprenant un ergot d'encliquetage et un élément d'encliquetage (18) pourvu au moins d'un évidement d'encliquetage (22), ainsi qu'un élément élastique (23, 24) serrant l'un contre l'autre l'ergot et l'élément d'encliquetage en direction du point de rotation de la visière. L'élément d'encliquetage (18) ou l'ergot d'encliquetage (31) est monté pivotant avec la visière. L'évidement d'encliquetage (22) de l'élément d'encliquetage (18) affecté à la position de fermeture est décalé de manière telle que l'ergot d'encliquetage (31) exerce sur la paroi latérale dudit l'évidement (22) et ainsi sur la visière (2) une précontrainte dans le sens de fermeture. On obtient ainsi un meilleur blocage de la visière (2) en position fermée, qui résiste même à une pression importante du vent (vitesse plus élevée), également lorsque l'on tourne la tête.
EP87907500A 1986-11-17 1987-11-17 Casque de protection a visiere pivotante et encliquetable, notamment pour motocylistes Expired - Lifetime EP0289569B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87907500T ATE65166T1 (de) 1986-11-17 1987-11-17 Schutzhelm, mit einer schwenk- und rastbaren visiereinrichtung insbesondere fuer motorradfahrer.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3639261 1986-11-17
DE19863639261 DE3639261A1 (de) 1986-11-17 1986-11-17 Sturzhelm mit einer schwenk- und rastbaren visiereinrichtung
DE8708787U DE8708787U1 (de) 1987-06-24 1987-06-24 Schutzhelm, insbesondere für Motorradfahrer
DE8708787U 1987-06-24

Publications (2)

Publication Number Publication Date
EP0289569A1 true EP0289569A1 (fr) 1988-11-09
EP0289569B1 EP0289569B1 (fr) 1991-07-17

Family

ID=25849461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87907500A Expired - Lifetime EP0289569B1 (fr) 1986-11-17 1987-11-17 Casque de protection a visiere pivotante et encliquetable, notamment pour motocylistes

Country Status (7)

Country Link
US (1) US5091997A (fr)
EP (1) EP0289569B1 (fr)
JP (1) JP2655532B2 (fr)
CN (1) CN1022086C (fr)
AU (1) AU8274687A (fr)
DE (1) DE3771494D1 (fr)
WO (1) WO1988003766A1 (fr)

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KR101375530B1 (ko) * 2013-08-06 2014-03-17 (주)피앤지코퍼레이션 각도조정기능을 하는 캡사이드 연결장치를 갖는 썬캡
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Also Published As

Publication number Publication date
JPH01501404A (ja) 1989-05-18
DE3771494D1 (de) 1991-08-22
AU8274687A (en) 1988-06-16
EP0289569B1 (fr) 1991-07-17
WO1988003766A1 (fr) 1988-06-02
JP2655532B2 (ja) 1997-09-24
CN1022086C (zh) 1993-09-15
CN87107912A (zh) 1988-05-25
US5091997A (en) 1992-03-03

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