EP2806760A1 - Casque de protection et écran facial - Google Patents

Casque de protection et écran facial

Info

Publication number
EP2806760A1
EP2806760A1 EP13701085.6A EP13701085A EP2806760A1 EP 2806760 A1 EP2806760 A1 EP 2806760A1 EP 13701085 A EP13701085 A EP 13701085A EP 2806760 A1 EP2806760 A1 EP 2806760A1
Authority
EP
European Patent Office
Prior art keywords
face
shield
slide
shell
connecting member
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
EP13701085.6A
Other languages
German (de)
English (en)
Other versions
EP2806760B1 (fr
Inventor
Louis Guay
Gilles Basson
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.)
MSA Production France SAS
Original Assignee
MSA Gallet SAS
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
Application filed by MSA Gallet SAS filed Critical MSA Gallet SAS
Publication of EP2806760A1 publication Critical patent/EP2806760A1/fr
Application granted granted Critical
Publication of EP2806760B1 publication Critical patent/EP2806760B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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 present invention relates generally to breathing masks and helmets for use in various situations and environments, and in particular to a protective helmet equipped with a moveable face-shield.
  • a helmet typically includes a shell to protect the head, which has a face opening opposite the wearer's face, and a face-shield to protect the face.
  • the face-shield is generally mounted on the shell so that it is moveable between a lowered position in which the face-shield extends opposite the face opening, and a raised position in which the face opening is substantially bared.
  • the wearer is therefore able to place the face-shield in the raised position when circumstances do not require protection for the face, or when it is desired to remove the helmet.
  • the face-shield can be lowered when the face must be protected.
  • the face-shield is conventionally mounted on the shell so that it pivots about an axis transverse to the helmet, located in the vicinity of the wearer's ears when in position of use.
  • existing arrangements have a certain number of disadvantages.
  • the mounting and removing operations of the face-shield most often require tooling, time, and some experience in the operation. Dissasembly of the helmet itself may even be necessary to remove the face-shield and to mount another in its place. These operations, which for firefighters are performed by the technical department of the fire station, are therefore restrictive, in particular, in terms of time.
  • the assembly of the face-shield onto the shell about a pivot axis translates as a relatively cumbersome mechanism located within the helmet at the wearer's ear level. It follows that the space free for housing ear protections is reduced which may cause discomfort in some situations. Further, the face-shield must be located at a sufficient distance away from the face so that its pivoting movement about an axis is possible. As a result, in some situations, the face- shield may not efficiently protect the wearer, in particular, from upward projections in the direction of the face, which pass through the relatively large space existing between the face and the bottom of the face-shield.
  • a protective helmet and face-shield that addresses and/or overcomes some or all of the potential drawbacks associated with existing helmets utilizing or including face-shields and similar arrangements.
  • a protective helmet including: a shell having a longitudinal plane of symmetry and including a face opening and left and right side portions, a slide being provided in each of the side portions of the shell, the slides being symmetrical relative to the longitudinal plane of symmetry; a face-shield mounted on the shell and moveable between a lowered position in which the face-shield extends opposite the face opening, and a raised position in which the face opening is substantially bared, the face-shield including a central portion and two side wings, at least one upper connecting member and one lower connecting member being provided on each side wing of the face-shield; wherein the two connecting members of each wing being arranged so that they can be engaged in the corresponding slide of the shell and so that they can slide in the said slide to guide the movement of the face-shield between its lowered and raised positions.
  • connection of the face-shield in relation to the shell allowing the movement of the face-shield between raised and lowered positions is obtained by the sliding of connecting members in two lateral slides.
  • the helmet facilitates the replacement of a face-shield (i.e., removing an existing face-shield and mounting a new one) that is easier, quicker, and more intuitive, and which may not require tooling.
  • This replacement can therefore be performed by users themselves.
  • the connecting arrangement is not cumbersome and allows significant space to be freed at the side portions of the shell, of which advantage can be drawn to preferably house ear protection inside the shell.
  • a reduction in the volume outside the shell is provided, primarily due to the fact that there are no projecting connections, thereby reducing risks that the helmet may catch on various outside elements.
  • the inventive helmet proves to be more robust and more reliable than existing helmets, in particular, during face-shield replacement operations, and the risks of loss of parts and/or damage to the face-shield being considerably reduced.
  • the phrase "symmetric relative to the longitudinal plane of symmetry" indicates that the slides are of identical shape and are arranged opposite one another.
  • the slides which may cross through the shell transversely, may globally be in the form of an arc of a circle.
  • at least part of the slide and preferably the majority of the slide substantially forms a quarter circle whose center lies substantially opposite a wearer's ear, when in position of use.
  • the connecting members can include at least one main portion extending substantially transversally towards the shell.
  • the slides they can open substantially transversally towards the face-shield, which allows reducing the number of component parts of the slide.
  • the face-shield is mounted inside the shell, the connecting members projecting outwardly from the side wings of the face- shield. This arrangement is advantageous in that the face-shield, when in raised position, is protected inside the shell and there is therefore less risk that it may be damaged.
  • the face-shield may be designed so that it can be elastically deformed in order to modify the cross distance between the two side wings.
  • the face-shield can be designed to allow the two side wings to be drawn near to each other.
  • the face-shield can be elastically deformed by a user to allow the engaging of the connecting members of the face-shield into the slides of the shell. Elastic deformation of the face-shield can also be obtained when moving the face-shield between its raised and lowered positions. This can be obtained by choosing a suitable face-shield thickness and/or constituent material.
  • provided are connecting members which retract when being placed in position and then return to their projecting position.
  • each slide includes: an upper part intended to receive the upper connecting member, the said upper part of the slide globally extending horizontally, in position of use, and having a curved shape with the concavity directed downwardly; and a lower part intended to receive the lower connecting member, the lower part of the slide having at least one main portion which globally extends vertically, in position of use, and which has a curved shape with the concavity directed towards the rear.
  • each slide includes an upper part and a lower part, with the lower part being arranged in the continuity of the upper part, meaning that the upper end portion of the lower part substantially coincides with a theoretical prolongation of the lower end portion of the upper part.
  • the rear end of the slide upper part is preferably located substantially above the user's ear, when the helmet in the position of use, i.e., in the position it occupies when placed on the head of a wearer standing straight, said slide upper part not extending further rearward.
  • the upper part and the main portion of the lower part are not necessarily coaxial, or even of the same radius.
  • Providing an upper connecting member and a lower connecting member which are separate and which are received respectively in an upper part and a lower part of the slide is advantageous in that it makes it possible to appropriately design the shape of the slide upper and lower parts in order to get the desired movement of the face-shield. A wider range of movements are therefore possible for the face-shield, depending on the slide configuration.
  • each slide includes an upper part intended to receive the upper connecting member, and a lower part intended to receive the lower connecting member, where the upper and lower parts of the slide are separated by a bridge of material, which is capable of cooperating with the upper connecting member when the face- shield is in lowered position and/or with the lower connecting member when the face-shield is in raised position.
  • the bridge of material may therefore form an abutment member and/or locking member for at least one of the connecting members.
  • At least one upper connecting member may be mobile between a locking position in which this member cooperates with the shell so as to prevent this member from moving out of the corresponding slide, and a released position allowing this member to move out of the slide.
  • this member may cooperate with the bridge of material if such is provided. The movement of this member towards and/or from its locking position may require a tool. This may be useful in some cases in which it is desired to prevent non-authorized persons from removing the face-shield.
  • the upper connecting member may have an end face forming an inclined ramp able to cooperate with the bridge of material when the upper connecting member is in released position and the face-shield is lowered, in order to cause the corresponding side wing of the face-shield to be drawn away from the shell, and thereby to cause the upper connecting member to move out of the slide.
  • “automatic" disengaging of the face-shield is obtained. If the face-shield is mounted inside the shell, the end face faces outwardly and the two wings of the face-shield are drawn together under the action of the drawing away of a wing from the shell caused by the ramp.
  • the upper connecting member may include a pin projecting substantially orthogonally from the side wing of the face-shield in the direction of the shell when in position of use, and an end lug substantially orthogonal to the pin, the upper connecting member being pivotally mounted on the face-shield about the axis of the pin so that, in locked position, one region of the shell adjacent the slide is substantially gripped between the said end lug and the side wing of the face-shield. The region of the shell is thereby sandwiched for locking and can be formed of the bridge of material if such is provided.
  • the upper connecting member is able to pivot by about 180° between its released and locked positions, while remaining substantially within the axis of the upper part of the slide in the said two positions.
  • the pin projects outwardly and the inclined ramp if provided corresponds to the side of the end lug lying opposite the side wing, hence outside.
  • each slide includes an additional portion which extends the main portion of the slide from its lower end towards the rear.
  • This makes it possible to move the face-shield towards the wearer's face at the end of the face-shield lowering movement. In this way, face protection is improved.
  • the helmet remains adapted to the wearing of glasses.
  • a user may wear a mask with the helmet of the invention. In this case, the user may place the face-shield in an intermediate position opposite the face but not drawn close to the face.
  • the lower connecting member to include a pin projecting substantially orthogonally from the side wing of the face-shield in the direction of the shell when in position of use, and an end lug which is substantially orthogonal to the pin and arranged so that, in mounted position of the face-shield (substantially irrespective of the position of the lower connecting member on its sliding pathway in the slide when the face-shield is moved between its raised and lowered positions) one region of the shell adjacent the slide is substantially gripped between the said end lug and the side wing of the face-shield.
  • This sandwiched region of the shell may be formed of the peripheral region of the lower part of the slide. For mounting and removing the face-shield, it must be provided to orient the lug substantially parallel to the slide for example so that this lug is no longer in contact with the shell.
  • the lower connecting member may be fixedly mounted on the face-shield.
  • the helmet may include an arrangement for holding the face-shield in the position it occupies, so that the face-shield does not fall when it is in raised or intermediate position. Said face-shield holding arrangement is preferably distinct from the upper and lower connecting members and from the slides.
  • the face-shield holding arrangement includes abutment, friction and/or deformation members capable of cooperating with at least one of the connecting members.
  • the face-shield holding arrangement may include an elastic return member or arrangements, for example, arranged to maintain at least one connecting member in contact by friction against an edge of the corresponding slide.
  • the helmet may include at least one spring mounted on a side portion of the shell, behind the slide, the spring having a front portion, which extends along the rear edge of the slide and which is arranged to push the corresponding lower connecting member forwardly against the front edge of the slide, substantially irrespective of the position of the lower connecting member on its sliding pathway in the slide when the face-shield is moved between its lowered and raised positions.
  • this holding of the face-shield's position could be ensured at least partially through the use of an elastomer or elastomeric member, for example. Provision may be made so that shell, in each of its side portions, includes a recess in which the slide is arranged, at least in part, the shell additionally in the form of a plate covering this recess at least in part.
  • a method for placing a face-shield in position on a shell of a protective helmet such as previously described, the method including the steps of: the face-shield being tilted forwardly relative to the shell, engaging the lower connecting members in the corresponding slide; sliding the lower connecting members downwardly into the said slide; tilting the upper part of the face-shield backwards towards the shell; and engaging the upper connecting members in the corresponding slides.
  • a subsequent locking step may also be provided.
  • a protective helmet including: a shell defining a face opening and having left and right side portions; a slide arranged on each of the side portions of the shell, wherein the slides are symmetrical relative to a longitudinal plane of symmetry of the shell; a face-shield having a central portion and mounted on the shell and configured to move between a lowered position in which the face-shield extends opposite the face opening and a raised position in which the face opening is substantially bared; and two side wings on the face-shield, each having at least one upper connecting member and at least one lower connecting member; wherein the connecting members are configured to engage in a corresponding slide of the shell to guide the movement of the face-shield between the lowered position and the raised position.
  • a method for placing a face-shield in position on a shell of a protective helmet including: a shell defining a face opening and having left and right side portions; a slide arranged on each of the side portions of the shell, wherein the slides are symmetrical relative to a longitudinal plane of symmetry of the shell, wherein a face-shield having a central portion and mounted on the shell and configured to move between a lowered position in which the face-shield extends opposite the face opening and a raised position in which the face opening is substantially bared; and two side wings on the face- shield, each having at least one upper connecting member and at least one lower connecting member; and wherein the connecting members are configured to engage in a corresponding slide of the shell to guide the movement of the face-shield between the lowered position and the raised position.
  • the method includes: tilting the face-shield forwardly relative to the shell; engaging the lower connecting members in a corresponding slide; sliding the lower connecting members downwardly in the slide; tilting the upper part of the face-shield towards the rear to place it close to the shell; and engaging the upper connecting members in the corresponding slides.
  • a protective helmet including: a shell defining a face opening and having left and right side portions; a slide arranged on each of the side portions of the shell; a face-shield having a central portion and mounted on the shell and configured to move between a lowered position in which the face-shield extends opposite the face opening and a raised position in which the face opening is substantially bared; and at least one side wing on the face-shield, the at least one wing having at least one upper connecting member and at least one lower connecting member; wherein the connecting members are configured to engage in a corresponding slide to guide the movement of the face-shield between the lowered position and the raised position.
  • Fig. 1 is a side view of a shell for a helmet according to the principles of the present invention
  • Fig. 2 is a front view of a face-shield according to the principles of the present invention
  • Fig. 3 is a side view of the face-shield of Fig. 2;
  • Fig. 4 is a cross-sectional view of a helmet along the median longitudinal plane, from the inside, showing the shell and the face-shield in lowered position, and the connecting arrangement between the shell and the face-shield, according to the principles of the present invention
  • Fig. 5 is a detailed view of the side portion of the shell of Fig. 4;
  • Figs. 6-8 are side views illustrating successive steps for mounting the face-shield on the shell according to the principles of the present invention.
  • Fig. 9a is a side view of an assembled helmet according to the principles of the present invention, with the face-shield being in a lowered, non-locked position;
  • Fig. 9b is a detailed view of a portion of the assembled helmet of Fig. 9a;
  • Fig. 10a is a side view of a mounted helmet according to the principles of the present invention, with the face-shield being in a lowered, locked position;
  • Fig. 10b is a detailed view of a portion of the mounted helmet of Fig. 10a;
  • Fig. 1 1 is a side view of a helmet according to the principles of the present invention, where the face-shield is in a raised position;
  • Fig. 12 is a side view of the helmet of Fig. 1 1 , where the face-shield is in a first intermediate position;
  • Fig. 13 is a side view of the helmet of Fig. 1 1 , where the face-shield is in a second intermediate position;
  • Fig. 14 is a side view of the helmet of Fig. 1 1 , where the face-shield is in a lowered position;
  • Fig. 15 is a side view of a part of a slide intended to be mounted on a shell of a helmet according to the principles of the present invention.
  • the present invention relates to a helmet and a face-shield and a method of positioning a face-shield on the shell of a helmet, as illustrated in certain preferred and non-limiting embodiments in Figs. 1-14.
  • a helmet 1 includes a rigid shell 2 and a face-shield 3.
  • the helmet 1 may also include an eye shield and an impact cap, headgear intended for wearer comfort, an adjustable head band and a chin strap (not illustrated).
  • the shell 2 illustrated in Fig. 1 is intended to cover the wearer's head, and is made for example from a composite or thermoplastic material.
  • the shell 2 has a longitudinal plane of symmetry P.
  • the helmet 1 in the position of use i.e., in the position it occupies when placed on the head of a wearer standing straight, is illustrated in Fig. 14.
  • the transverse direction Y is defined as the direction orthogonal to plane P, this direction therefore being substantially horizontal.
  • the longitudinal direction X is defined as the direction orthogonal to Y and is substantially horizontal, and direction Z is the vertical direction.
  • the term “inner” is used to designate an element nearest the wearer's head, as opposed to the term “outer”.
  • the terms “upper”, “lower”, “top”, and “bottom” are used with reference to direction Z.
  • the terms “front” and “rear” are used with reference to direction X, and the terms “side”, “left”, “right”, and “transverse” are used with reference to direction Y.
  • the shell 2 is of general spherical shape and has a face opening 4 for the wearer's face.
  • the shell 2 includes a front portion 5 located above the face opening 4, an upper portion 6, a rear portion 7 extending from the upper portion 6 as far as the wearer's neck, and a left side portion and a right side portion 8, each extending from the upper portion 6 either side of the face opening 4.
  • each side portion 8 has an inward recess 9.
  • a plate 10 is fixed on each side portion 8 of the shell 2 so as to cover this recess 9 at least in part.
  • the plate 10 is not illustrated so that the connecting arrangement can be more easily seen.
  • the plates 10 may lie substantially flush with the regions of helmet 1 located around the recess 9 so that the shell 2 in this region has an outer surface that is substantially unbroken.
  • the plate 10 may also be used to hang a connecting device of a respiratory mask.
  • the face-shield 3 includes a central portion 11 through which the wearer is able to see the surroundings, and two side wings 12 used to mount the face-shield 3 on the shell 2.
  • the rear edge 13 of each side wing is preferably in the form of an arc of a circle whose center lies substantially at the level of the wearer's ears, in the position of use of the helmet 1.
  • the face-shield 3 is mounted on the shell 2, from inside the shell 2 via a connecting arrangement, such that it is moveable between a lowered position (Fig. 14) in which the face-shield 3 extends opposite the face opening 4, and a raised position (Fig. 1 1) in which the face opening 4 is substantially bared.
  • the face-shield 3 has a longitudinal plane of symmetry P' substantially merging with the plane P in the mounted position of the helmet 1.
  • the connecting arrangement between the shell 2 and the face-shield 3 includes two slides 15 each arranged in a side portion 8 of the shell 2, and an upper connecting member 16 and a lower connecting member 17 arranged on each side wing 12 of the face-shield 3.
  • the two connecting members 16, 17 of each wing 12 are arranged so that they can be engaged in the corresponding slide 15 of the shell 2 and so that they can slide in the said slide 15 to guide the movement of the face-shield 3 between its lowered and raised positions.
  • the slides 15 are arranged in the shell 2. It is to be noted that the slides 15 can be fabricated on the shell 2 itself, typically by molding, or they can be fabricated at least in part on intermediate parts secured to the shell 2.
  • the slides 15 are symmetric relative to the longitudinal plane of symmetry P and are preferably arranged at least in part in the recess 9 of the corresponding side portion 8. Further, and in one preferred and non- limiting embodiment, the width of the slide 15 ( between its rear edge 27 and its front edge 28) is substantially constant.
  • each slide 15 includes an upper part 18 and a lower part 19 separated by a bridge of material 20.
  • the lower part 19 located in the recess 9 passes laterally through the shell 2, but cannot be seen from outside the helmet 1 since it is masked by the corresponding plate 10.
  • the upper part 18 is intended to receive the upper connecting member 16 of the face-shield 3 and is of curved shape with the concavity directed downwardly.
  • This upper part 18 generally extends horizontally, while being slight curved and slightly tilted downwardly from the rear towards the front. It includes a rear end 21 , located, for example substantially above the wearer's ears, and a front end 22 adjacent the bridge of material 20.
  • the upper part 18 in the vicinity of the front end 22, the upper part 18 is located in the recess 9 and crosses through the shell 2 laterally, but cannot be seen from the outside of the helmet 1, since it is masked by the corresponding plate 10.
  • the remainder of the upper part 18 of the slide 15 is located outside the recess 9 and does not pass through the shell 2.
  • the upper part 18 of the slide 15 is formed by an upper wall 50 and a lower wall 51 projecting inwardly and between them guiding the upper connecting member 16.
  • the upper connecting member 16 sliding in the upper part 18 of the slide 15 passes through an orifice 52 arranged in the surface 53 lying between the recess 9 and the remainder of the side portion 8 of the shell 2.
  • this surface 53 may lie substantially along the plane (X, Y).
  • the lower part 19 is intended to receive the lower connecting member 17 of the face- shield 3. It includes a main portion 23, which extends in the continuity of the upper part 18, on the other side of the bridge of material 20, and an additional portion 24, which extends the main portion 23 from its lower end towards the rear.
  • the main portion 23 of the lower part 19 is of curved shape with the concavity directed towards the rear. This main portion 23 generally extends vertically, while being slightly curved and slightly tilted towards the front, from the top towards the bottom.
  • the additional portion 24 is substantially rectilinear and slightly tilted downwardly from the front towards the rear.
  • the lower part 19 is substantially of an up-turned L-shape. It includes an upper end 25 adjacent the bridge of material 20, and a lower end 26, which located in front of (and underneath) the rear end 21 of the upper part 18 of the slide 15.
  • the upper part 18 of the slide 15 and the main portion 23 of the lower part 19 of the slide 15 substantially form a quarter of a circle with a center located substantially opposite the wearer's ear, in position of use.
  • This arc of a circle formed by the slide 15 and the arc of a circle formed by the rear edge 13 of the corresponding side wing 12 of the face-shield substantially have the same center and the same radius, which means that they substantially mate in the assembled position of the helmet 1.
  • connecting members 16, 17 are provided on the face-shield 3. These connecting members 16, 17 project from the side wings 12 of the face-shield 3 towards the outside i.e. in the direction of the corresponding side portion 8 of the shell 2.
  • the lower connecting member 17 is preferably fixedly mounted on the face-shield 3. It includes a pin 30 projecting substantially orthogonally from the side wing 12 of the face-shield 3 towards the outside and an end lug 31, which is substantially orthogonal to the pin 30.
  • the end lug 31 is preferably substantially oriented radially, i.e., orthogonal to the rear edge 13 in the form of an arc of a circle of the side wing 12, towards the rear.
  • the upper connecting member 16 includes a pin 32, which projects substantially orthogonally from the side wing 12 of the face-shield 3 towards the outside, having an axis 33.
  • the upper connecting member 16 secondly includes an end lug 34 substantially orthogonal to the pin 32.
  • the outer face 35 of the end lug 34 forms a ramp inclined outwardly from its base (on the side of the pin 32) in the direction of its free end 36, as can be seen in Fig. 2.
  • the upper connecting member 16 is pivot mounted on the face-shield about the axis 33 of the pin 32 between: a released position in which, in mounted configuration, the lug 34 extends in the general direction of the upper part 18 of the slide 15, opposite the bridge of material 20 (i.e., the end lug 34 extends substantially tangent to the slide 15 in upward direction and towards the rear (see Figs. 3, 9a, and 9b)); and a locked position in which the end lug 34 has been turned substantially 180° relative to the released position, and is therefore directed towards the bridge of material 20 (see Figs. 10a and 10b).
  • each lower connecting member 17 is engaged in the main portion 23 of the lower part 19 of the slide 15, in the vicinity of the upper end 25, i.e., in the vicinity of the bridge of material 20.
  • this engagement is implemented through the following arrangements and configurations: (1) the face-shield 3 is designed so that it can be elastically deformed by the user to draw the two side wings 2 towards each other, and once the lower connecting members 17 are engaged in the slides 15, the face-shield returns to its initial shape; and (2) the face-shield 3 is tilted relative to the shell 2 so that the end lugs 31 of the lower connecting members 17 are oriented substantially parallel to the slide 15 and are therefore able to be engaged in this slide 15. Insofar as the upper connecting members 16 are not yet engaged in the slide 15, it is effectively possible for the user to tilt the face-shield 3 at different angles.
  • the user then slides the lower connecting members 17 downwards into the slide 15, substantially as far as the lower end 26 of the additional portion 24 of the lower part 19 of the slide 15 (see Fig. 8). Throughout this movement, the lower connecting members 17 remain engaged in the slides 15. This is due to the following: (1) the face-shield 3 has returned under elasticity to its initial shape, preventing undue movement of these members 17 out of the slides 15; and (2) the end lugs 31 are no longer oriented along the slide 15 and come to cooperate with the region of the shell 2 peripheral to the slide 15, thereby ensuring retaining of the face- shield 3. The user then tilts the upper part 60 of the face-shield 3 towards the rear to draw it close to the shell 2, the lower connecting members 17 remaining engaged in the slides 15.
  • the upper connecting members 16 are each engaged in the corresponding slide 15, more particularly in the upper part 18 of the slide 15, in the vicinity of the front end 22, i.e., in the vicinity of the bridge of material 20. So that such engaging is possible, the upper connecting members 16 are placed in a released position, as illustrated in Figs. 9a and 9b. In addition, it may be necessary to elastically deform the face-shield 3.
  • the upper connecting members 16 When the upper connecting members 16 are in the released position, the movement of these members outside the slide 15 is possible and a last locking step can be performed.
  • the upper connecting members 16 can be rotated, relative to the face-shield 3 and about axis 33, towards their locking position. This operation may require a tool, such as a screwdriver, which the user inserts in the imprint of the upper connecting member 17, from inside the helmet 1.
  • the face-shield 3 being in lowered position as illustrated in Figs. 10a and 10b, the end lug 34 cooperates with the bridge of material 20, which is sandwiched between this lug 34 and the side wing 12. Therefore, the upper connecting member 16 is unable to move outside the corresponding slide 15.
  • the face-shield 3 can be moved relative to the shell 2 between a raised position and a lowered position.
  • the upper connecting members 16 slide in the upper part 18 of the slides 15 substantially from the rear end 21 as far as the front end 22, while the lower connecting members 17 slide in the lower part 19 of the slides 15, substantially from the upper end 25 as far as the lower end 26.
  • the upper connecting members 16, in locked position remain oriented along the slide 15 and therefore do not hamper this movement.
  • each lower connecting member 17 allows maintaining of the face- shield 3 in the mounted position, optionally, in combination with other members or arrangements, such as the elasticity of the face-shield 3 in particular.
  • the end lug 31 of each lower connecting member 17 is arranged so that, irrespective of the position of the lower connecting member 17 on its sliding pathway in the slide 15 when the face-shield 3 is moved between its lowered and raised positions, the region of the shell 2 lying peripheral to the slide 15, on the rear side, is sandwiched between this lug 31 and the side wing 12.
  • Fig. 1 1 shows the helmet 1 with the face-shield 3 in raised position. The abutting of the face-shield 3 in the upward direction can be obtained by cooperation between the upper connecting members 16 and the rear end 21 of the slide 15 and/or by cooperation between the lower connecting members 17 and the bridge of material 20.
  • the face-shield 3 can be lowered to a greater or lesser extent, according to the needs of the wearer of the helmet 1.
  • Figs. 12 and 13 illustrate two possible intermediate positions.
  • the lower connecting members 17 are located substantially at the junction between the main portion 23 and the additional portion 24 of the lower part 19 of the slide 15.
  • the face-shield 3 can be further lowered down to its bottom position illustrated in Fig. 14.
  • the face-shield 3 is not only lowered but also drawn near to the wearer's face, on account of the additional portion 24 of the lower part 19 of the slide 15.
  • the face-shield 3 pivots about the axis 33.
  • abutting of the face-shield 3 downwardly can be obtained by cooperation between the upper connecting members 16 and the bridge of material 20 and/or by cooperation between the lower connecting members 17 and the lower end 26 of the slide 15.
  • an arrangement for maintaining the face-shield 3 in its current position is provided.
  • a spring 40 is mounted on each side portion 8 of the shell 2 behind the lower part 19 of the slide 15.
  • the springs 40 are preferably symmetrical relative to the longitudinal plane of symmetry P.
  • the spring 40 may be in the form of a strip of metal open at the back, whose ends 41 are retained in a tongue 42 arranged on the shell 2, preferably in the recess 9 (see Fig. 9b).
  • the spring 40 can be fixed by two studs 44 secured to the shell 2.
  • the spring 40 has a front portion 43 that extends along the rear edge 27 of the slide 15, preferably in the immediate vicinity thereof. This front portion 43 pushes the corresponding lower connecting member 17 forwardly against the front edge 28 of the slide 15. Therefore, the lower connecting member 17 is held in contact by friction with the front edge 28 of the corresponding slide 15, substantially irrespective of the position of the lower connecting member 17 on its sliding pathway within the slide 15 when the face-shield 3 is moved between its lowered and raised positions.
  • the spring 40 includes an upper part 45 that bulges forwardly allowing a greater thrust force to be applied to the lower connecting member 17 when the face-shield is in the raised position. This ensures increased maintaining and/or the setting up of a hard point for the lower connecting member 17, which acts as abutment.
  • the spring 40 may have a lower part 46 that bulges forwardly cooperating with the lower connecting member 17 when the face-shield is in the lowered position, to act as abutment.
  • the procedure is substantially the reverse of the mounting procedure.
  • the face-shield 3 is lowered until each of the upper connecting members 16 comes into contact with the corresponding bridge of material 20. Then this member 16 is placed in released position by rotation of 180°. The bridge of material 20 then cooperates with the outer face 35 of the end lug 34 that is ramp-shaped.
  • this causes the corresponding side wing 12 of the face-shield 3 to draw away from the shell 2 by elastic deformation of the face-shield 3, and thereby causes the said upper connecting member 16 to move out of the slide 15.
  • the lower connecting members 17 can then be caused to slide upward in the slides 15 and/or the face-shield 3 can be tilted relative to the shell 2 so as to disengage the lower connecting members 17 from the slides 15.
  • a certain elasticity of the face- shield 3 may be useful for this disengaging.
  • the lower part 19 of a slide 15 including another embodiment of a face-shield holding arrangement, for holding the face-shield either in the upper position or in the lower position.
  • said lower part 19 of the slide 15 is an intermediate part intended to be secured to the shell 2.
  • the face-shield holding arrangement includes abutment members capable of cooperating with the connecting members.
  • one set of upper projections 70 near the upper end 25 of the lower part 19 of the slide 15, which are capable of cooperating with the lower connecting member 17 in order to hold the face-shield 3 in the upper position.
  • one set of lower projections 71 near the lower end 26 of the lower part 19 of the slide 15, which are capable of cooperating with the lower connecting member 17, in order to hold the face-shield 3 in the lower position.
  • the projections 70, 71 extend from a rear edge 27 or a front edge 28 of the lower part 19 of the slide 15 towards the opposite edge. The projections of one set are located facing one another.
  • each upper projection 70 includes an inclined face 73 forming a ramp for guiding the lower connecting member 17 towards its upper position, where the face-shield 3 is held in the upper position, and a straight face 74, facing the upper end 25, for retaining the lower connecting member 17 in its upper position.
  • the wearer moves the face-shield 3 upwardly, he feels a resistance to this movement when the lower connecting member 17 contacts the inclined faces 73 of the projections 70. Continuing this movement results in locking the lower connecting member 17 against the straight faces 74. Unlocking the lower connecting member 17 can only be achieved by a sufficient effort exerted by the wearer on the face-shield 3.
  • the projections 70 are dimensioned so that this effort is high enough to avoid untimely movement of the face-shield 3 and low enough to be exerted by the wearer.
  • each lower projection 71 includes an inclined face 75 and a straight face 76, facing the lower end 26 of the lower part 19 of the slide 15, for retaining the lower connecting member 17 in its lower position.
  • the present invention represents an improvement over existing arrangements by providing a helmet that allows the face-shield to be changed quickly and easily, while ensuring excellent protection for the head and more particularly for the face.
  • the invention is evidently not limited to the embodiment described above as an example, but encompasses all technical equivalents and variants of the described means, and combinations thereof.

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

L'invention concerne un casque de protection comprenant une enveloppe définissant une ouverture faciale et présentant des parties latérales gauche et droite, une glissière agencée sur chacune des parties latérales de l'enveloppe, les glissières étant symétriques par rapport à un plan de symétrie longitudinal de l'enveloppe, l'écran facial comprenant une partie centrale montée sur l'enveloppe et conçue pour se déplacer entre une position abaissée dans laquelle l'écran facial s'étend en face de l'ouverture faciale et une position surélevée dans laquelle l'ouverture faciale est sensiblement mise à nu, et deux ailes latérales sur l'écran facial comprenant chacune au moins un élément de liaison supérieur et au moins un élément de liaison inférieur. Les éléments de liaison sont conçus pour venir en prise dans une glissière correspondante de l'enveloppe afin de guider le mouvement de l'écran facial entre la position abaissée et la position surélevée. L'invention concerne également des procédés de placement de l'écran facial en position sur l'enveloppe d'un casque de protection.
EP13701085.6A 2012-01-26 2013-01-24 Casque de protection et écran facial Active EP2806760B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1250741A FR2986141B1 (fr) 2012-01-26 2012-01-26 Casque de protection equipe d’un ecran facial mobile
PCT/EP2013/051266 WO2013110675A1 (fr) 2012-01-26 2013-01-24 Casque de protection et écran facial

Publications (2)

Publication Number Publication Date
EP2806760A1 true EP2806760A1 (fr) 2014-12-03
EP2806760B1 EP2806760B1 (fr) 2018-06-06

Family

ID=47603734

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13701085.6A Active EP2806760B1 (fr) 2012-01-26 2013-01-24 Casque de protection et écran facial

Country Status (3)

Country Link
EP (1) EP2806760B1 (fr)
FR (1) FR2986141B1 (fr)
WO (1) WO2013110675A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11134741B2 (en) * 2017-05-25 2021-10-05 E.D. Bullard Company Protective helmet with a retractable and removable visor
IT201700122769A1 (it) * 2017-10-27 2019-04-27 Gian Luca Chianese Casco di protezione
IT201800009613A1 (it) * 2018-10-19 2020-04-19 Momo Design Srl Casco di protezione
US11213089B2 (en) 2019-06-04 2022-01-04 Msa Technology, Llc Protective helmet with face protection shield and linkage mechanism
AU2022215630A1 (en) 2021-02-08 2023-07-27 Milwaukee Electric Tool Corporation Hard hat face shield attachment system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543308A (en) * 1966-12-19 1970-12-01 Sierra Eng Co Visor
JPS61176222U (fr) * 1985-04-17 1986-11-04
FR2593035B1 (fr) * 1986-01-21 1988-06-10 Chaise Francois Systeme aerodynamique et antibuee de coque et d'ecran de vision d'un casque de protection.
FR2595921A1 (fr) * 1986-03-18 1987-09-25 Gpa Int Casque a ecran integrable dans sa coque
JPH026608A (ja) * 1988-06-17 1990-01-10 Honda Motor Co Ltd ヘルメットのシールド取付装置
JP3875650B2 (ja) * 2002-07-30 2007-01-31 株式会社アライヘルメット フルフェースヘルメットにおけるマウスシャッタの支持構造

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2013110675A1 *

Also Published As

Publication number Publication date
FR2986141A1 (fr) 2013-08-02
WO2013110675A1 (fr) 2013-08-01
EP2806760B1 (fr) 2018-06-06
FR2986141B1 (fr) 2015-03-27

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