A wiper for a helmet visor, a visor and a helmet with said wiper

Abstract

The present invention belongs to the field of helmets, more precisely to the field of devices for wiping visors during helmet use. The invention relates to a wiper for a helmet visor, the visor and the helmet comprising said wiper. The wiper for the visor of a helmet comprises: - a blade comprising a frame and a wiping element, - an arm connecting said blade to a housing of the wiper, - the housing with an electric motor and a battery, and - an attachment assembly arranged for mounting the wiper on the helmet or the visor, wherein the blade comprises: - the frame with at least three mountings for mounting the wiping element, and - a replaceable wiping element, which comprises at least a wiping part arranged to contact the visor, wherein the wiping element is attached to the frame with a holder with at least three pairs of wider parts corresponding to the mountings on the frame or with protrusions provided on or in the wiping part corresponding to the mountings on the frame.

Description

[0001] A WIPER FOR A HELMET VISOR, A VISOR AND A HELMET WITH SAID WIPER

[0002] Field of the invention

[0003] The present invention belongs to the field of helmets, more precisely to the field of devices for wiping visors of helmets during its use. The invention relates to a wiper for a helmet visor, a visor and a helmet with said wiper.

[0004] Background of the invention and the technical problem

[0005] Helmets with visors are mandatory equipment for motorcyclists, moped riders, drivers of quads, tricycles, snowmobiles, go-karts, and other means of transportation. They can also be used by police, bomb disposal experts, or workers cleaning with high- pressure or steam cleaners. In case of rain, snow, or during work with liquids, water droplets or liquids on the visor impair vision of the surroundings, which reduces the overview of the situation and, above all, the safety of the user.

[0006] Several different wipers are known, wherein said wipers are attached to the visor in different ways. For example, they can be attached to the top of the visor, to the bottom of the visor or to the sides so that the wiper moves up and down over almost the entire visor, as described in document GB2390969. Since many of them imitate car wipers, they do not provide good wiping of the visor, as it is significantly more curved and smaller than a car windshield or a rear window.

[0007] The technical problem, which is addressed by the present invention, is constructional design of a wiper for a helmet visor that will reliably and effectively wipe drops from the visor, while also ensuring easy wiper assembly and disassembly. An additional technical problem is related to electricity consumption and rapid draining of the battery; therefore, a further aim of the invention is to optimize the energy efficiency of the wiper. Prior art

[0008] Several different types of windshield wipers or wiper blades are known, which usually comprise two larger units:

[0009] - a wiper frame, and

[0010] - a rubber band mounted in or on the frame, the rubber band being in contact with the visor for wiping away liquid droplets.

[0011] In all known windshield wipers, the rubber band is inserted along its entire length into elongated guides mounted on the wiper frame, which are usually made of metal.

[0012] Known solutions usually have a one-piece frame. Such solutions are described, for example, in documents GB2524844, WO2014016632, W02004012543, US8209783, CA2660918, US2008184464 and GB2239782 and differ from the present invention.

[0013] However, some wipers comprise a frame made from several parts.

[0014] Patent application DE2645262 relates to a protective helmet for motorcyclists or skiers, which has a visor made of transparent material, wherein the visor is designed to rotate around pins. An electric motor is mounted in a protrusion of the helmet, the shaft of which drives an arm that supports a wiper blade for cleaning the central part of the visor. This solution allows the blade to move horizontally or vertically, which differs from the present invention.

[0015] Patent application GB2501290 discloses a wiper for use on a visor of a safety helmet, said wiper comprising a wiper assembly that can be flexibly pressed against the visor surface via a spring, which is different from the present invention.

[0016] Patent application GB2285390 describes a removable wiper for a motorcycle helmet visor, said wiper having a housing attached to the visor with a clip, and wherein the wiper comprises a blade, a motor and a switch. The wiper may be powered by a battery or the motorcycle's electrical system. This solution differs from the present invention. Description of the solution to the technical problem

[0017] The present invention solves the disadvantages of known solutions and represents an upgrade of existing manners of installation of wipers on wiper helmets. The solution of the technical problem is defined in the independent claims, wherein the preferred embodiments are defined in dependent claims.

[0018] The wiper according to the invention comprises a housing and an attachment assembly configured for installation to the helmet or the visor. A blade is mounted on the housing via an arm, said blade comprising a frame and a wiping element. Movement of the blade is enabled with an electric motor driven by a battery installed in the housing.

[0019] The blade of the wiper has a two-part frame with an intermediate joint, wherein it comprises a first arc on which an attachment element for connection with the arm is provided, and a second arc comprising two elements connected in the middle with a fulcrum, which also functions as a joint for connection with the first arc. The fulcrum may be achieved with a bolt and a nut or with any other suitable element or combination of elements that allow rotation of said frame parts. As the position of the first arc and the second arc are adjustable, the blade can adapt to different contours and shapes of the visor.

[0020] The wiping element is attached to the frame of the blade in any manner described below. According to a first preferred embodiment, the frame is on both ends of the second arc and on the far end of the first arc, which is distanced from the joint, provided with guides, into which the holder of the wiping part can be inserted, wherein said holder is shaped to fit into said guides. According to a second preferred embodiment, the frame is on both ends of the second arc and the far end of the first arc, which is distanced from the joint, provided with a snap hole that corresponds with protrusions, preferably pins, mounted on or in the holder of the wiping element or the wiping part. Said protrusions may be a part of the holder, separate elements that are glued, vulcanised, or otherwise connected to the holder. Said protrusions may be made of metallic or non-metallic materials, including plastic. Based on the position of the blade on the visor, the protrusions may minimally move in snap holes, which additionally adjusts the position of the wiping element during movement along the visor. It is desired that in this embodiment the wiping part is made from a higher or harder material than in the first embodiment.

[0021] The wiping element may comprise an approximately rectangular holder, the shape of which can be further adjusted based on the selected attachment means, and a rubber wiper attached to said holder. The holder is essentially a thin plate or a wider rectangular solid. The holder may be absent and then the whole wiping element is essentially designed as the wiping part having a carrying part onto or into which pins or similar elements are installed. The pins or similar elements can then be inserted into snap holes in the wiper frame. The transverse cross-section of bottom section of the wiping part (i.e., below the holder or the carrying part) is preferably triangular, wherein the narrow top is arranged to contact the visor. The wiping element as described above in combination with the wiper frame enables a thinner construction, 100% fit and easier replacement of used wiping elements.

[0022] The construction as described above enables easier replacement of the wiping element, wherein the frame does not have to be replaced. In case the frame is damaged or worn, it can be replaced, while leaving the arm and the housing in place. This leads to simpler part replacement, which saves time, money and at the same time represents an ecological solution with minimal replacement parts. The wiper blade as described above can along its entire length adapt to the surface of the visor, which ensures 100% fit and consequently efficient wiping of liquid droplets.

[0023] The frame of the wiper may be made from any suitable material, preferably from plastic. The most suitable method for manufacturing the frame is plastic injection moulding.

[0024] The holder of the wiping element may be made from any suitable material, preferably from plastic material, from composite having spring properties, or from spring steel, which is arranged to hold the wiping element in extended position. The wiping part is attached to the holder in any suitable manner, preferably by gluing or vulcanisation. The dimensions may be adjusted based on the frame and the manner of attachment of the wiping part to the frame, as well as to the size of the helmet or the visor, respectively.

[0025] The material for the wiping part may be any known rubber known to the skilled person based on natural or synthetic rubber, silicone, or any other elastomeric material, such as thermoplastic elastomers, thermoplastic polyurethane, or polyurethane, or combinations of said materials. During the development of the invention, it was determined that a wiping part made of silicone, the surface of which is additionally treated, reduces friction between the wiping part and the visor and consequently extends the operation of the wiper battery. Said additional surface treatment processes can be selected from the group consisting of fluorination, application of a parylene layer, application of a Slick Sil layer, the Quniton process and treatment with plasma.

[0026] The wiper according to the present invention can be installed on the visor with any suitable system, assembly, or process. Preferably, the wiper is installed with two shape-engaging (also called form-fitting) elements, preferably with guide and rail, wherein these shape-engaging elements are significantly upgraded with a lock, which prevents disengagement of the wiper from a rail installed on a surface, such as a visor or a helmet. Said rail, guide and lock form an assembly for mounting the wiper onto a helmet or a visor, respectively. Instead of rail and guide any other suitable shape-engaging two-part form can be used, wherein one part is mounted on the wiper and the second part on the visor. For easier description of the invention, the continuation of the text will be based on the embodiment using rail and guide, however, this does not limit the possibility of using other mutually engaging shapes.

[0027] The invention according to a possible embodiment provides a housing for the wiper, on which a guide is installed or formed as a part of the housing, preferably in the bottom part of the housing, wherein said guide has a shape that corresponds with (i.e. fits into) a rail provided on a visor, preferably near an upper or a bottom edge of the visor. The guide has a hole along its entire length, said hole arranged to receive a pin, which is designed as a rod with at least one wider part, preferably two wider parts, most preferably three wider parts, wherein the essential configuration comprises at least one wider part on one end of the rod and one wider part in a middle part or these two wider parts are designed as a single, longer wider part, which can be received in a groove provided in the rail, and wherein upon pressure on one end of the pin at least one wider part is moved from the groove, thus unlocking the lock. Movement from the groove can occur after rotation of the pin and removal of the wider part from the groove. In a preferred embodiment with three wider parts, two wider parts are provided on both ends of the rod, while the third wider part is in the middle part. Between the middle wider part and one of the remaining wider parts a spring is provided, which enables pressure on one of both ends of the pin. The rail is provided with two grooves located on the side in contact with the pin, said grooves functioning as a seat for two of the wider parts of the pin, which fixes the rail and the guide and prevents their mutual movement even in case of vibrations or shaking, high speed or similar effects. Upon applying pressure to the pin from one end and the spring compresses (contracts), the wider parts move from said two grooves and the guide can be removed from the rail. In the same manner, the guide is installed in the rail.

[0028] The guide and the rail are preferably made from plastic, preferably using injection moulding, wherein the pin and the spring are made from metal.

[0029] The guide may be a separate part and is attached to the wiper housing, while the guide and the housing are made as one piece. It can be injection moulded together with the housing or the guide is attached to the housing later.

[0030] The rail is preferably mounted so that they are at most 3 cm from the upper or the bottom edge of the visor, which depends on the side and the type of the helmet or the visor. The rail may be mounted on the visor in any suitable manner or they can be formed as a part of the visor. Some of the possible embodiments are the following: - the rail is attached to the visor with screws, wherein the visor has to be provided with drilled holes,

[0031] - the rail is fixedly attached to the visor with ultrasonic welding, high-frequency welding or gluing, or

[0032] - the rail is a part of the visor and is injection-moulded in the same process as injection moulding of the visor plastic.

[0033] The wiper according to the invention as described above can be installed on any visor or any helmet with a visor.

[0034] The invention successfully solves all technical problems and enables reliable and efficient wiping of the visor, easier installation and removal of the wiper, easier and more economical wiper maintenance as well as prolonged battery operation.

[0035] The wiper for a helmet visor, the visor and the helmet with the wiper according to the present invention will be described in further detail based on exemplary embodiments and figures, which show:

[0036] Figure 1 The helmet with installed wiper according to a possible embodiment Figure 2 The visor with installed wiper according to a possible embodiment

[0037] Figure 3 The wiper blade according to a first embodiment, the holder (figure 3b) and the wiping element (figure 3c)

[0038] Figure 4 The wiper blade according to a second embodiment (figure 4a, in detail - figure 4b, and in cross-section - figure 4c), the holder (figure 4d) and the wiping element (figure 4e)

[0039] Figure 5 An attachment assembly according to a possible embodiment, wherein the wiper is installed in the rail (figure 5a) and wherein the assembly comprises a pin (figure 5b), rail (figure 5c) and guide (figure 5d, 5e)

[0040] Figure 1 shows the helmet 1 with the visor 11 and a wiper 2 according to a possible embodiment installed on said visor, wherein the wiper comprises a housing 21 and an attachment assembly 3 comprising a rail 31 , a guide 32 and a lock 33. Figure 2 shows more details of the wiper, wherein a frame 41 of the blade with the wiping part 42 is installed to the housing via an arm 43. The wiper is movable using an electric motor driven by a battery installed in the housing 21 .

[0041] As shown in figures 3 and 4 the blade has a two-part frame 41 , 4T with a joint 414, 414', wherein it comprises a first arc 411 , 41 T, on which an attachment element for connection with the arm 43 is provided, and a second arc comprising two elements 412, 413, 412', 413', which are in the centre connected with a fulcrum 414, 414', which at the same time functions as the joint for connection with the first arc 411 , 41 T. The fulcrum 414, 414' may be achieved with a bolt and nut or with any other suitable element or combination of elements, which enable movement of the mentioned frame parts.

[0042] Figures 3 and 4 show two different embodiments of the blade, which differ in that how the wiping elements 42, 42' are mounted on the blade frame 41 , 4T. According to a first preferred embodiment (figure 3a and 3b) the frame 41 is on both ends of the second arc and in the far end of the first arc, which is distanced from the joint, provided with guides 41a, 41 b, 41c, into which the holder 421 of the wiping element is inserted, which is arranged to fit into the guides 41a, 41 b, 41c. The shape of all three guides resembles the letter C. The wiping element, as shown in figure 3c, comprises: an approximately rectangular holder 421 , the shape of which can be further adjusted based on attachment means, and a wiping part 422 mounted on the holder 421. The holder 421 can be a thinner plate provided with three pairs of wider parts 421a, 421b, 421c, corresponding to the shape of guides 41a, 41 b, 41c on the frame 41 . The cross-section of the wiping part 422 is preferably triangular, wherein the narrow top is arranged to contact the visor 11 . The wiping part 422 and the holder 421 are glued together or the holder 421 is during vulcanisation or casting of the material for the wiping part 422 placed on the top, so that during solidification the holder connects with the wiping part. This design is very thin, however, the plastic holder 421 ensures rigidity of the wiping part 422, so that it can be installed in the blade frame 41 . For replacement of the wiping part 42, the three pairs of wider parts 421a, 421 b, 421c of the holder 421 are removed from the guides 41a, 41 b, 41c, so that the free guides 41 a, 41 b, 41 c can receive a new wiping element 42.

[0043] According to a second preferred embodiment (figure 4) the frame 41' is on both ends of the second arc and on the far end of the first arc distanced from the joint provided with snap holes 41 'a, 41 'b, 41 'c that correspond to protrusions 423'a, 423'b, 423'c on the wiping element 42'. Said protrusions 423'a, 423'b, 423'c may be a part of the wiping part 422' or are, preferably, separate elements, which are glued, welded, vulcanised or in any other manner connected to the wiping part 422'. Said protrusions 423'a, 423'b, 423'c may be made of metallic or non-metallic materials, including plastic, wherein the preferred shape is protrusions is a pin. Based on the position of the blade on the visor the pins 423'a, 423'b, 423'c can slightly move along the depth of the snap holes 41 'a, 41 'b, 41 'c and / or tilt in the snap holes 41 'a, 41 'b, 41 'c, which further adjusts the position of the wiping part during movement on the visor. It is desired that in this embodiment the wiping part is made from a higher or harder material than in the first embodiment. The height of the carrying part 42T above the wiping part 422' is between 2 and 10 mm, preferably between 2 and 6 mm.

[0044] Figure 4c shows a cross-section of the second embodiment, wherein the pins 423'a, 423'b, 423'c are installed in the carrying part 42T above the wiping part 422'. The pins are shaped as a rod-like element, which is on both ends and the centre provided with three wider parts, wherein the height of the parts between wider parts is between 2 and 4 mm. Alternatively, the pins may be attached on the upper carrying part of the wiping part.

[0045] Figure 4d shows guides or snap holes 41 'a, 41'b, 410c provided in three places of the blade frame 4T, wherein three holes are provided and a middle hole 41'b is in the centre between both outer holes 41'a, 41'c. The narrow part between both wider parts of the pin 423'a, 423'b, 423'c engages in said holes, as visible in figures 4a and 4b. Figure 4e shows an alternative embodiment of the holder of the wiping part with attached pins 423'a, 423'b, 423'c corresponding to the snap holes 41 'a, 41 'b, 41 'c on the frame. The upper part of the wiping element 42T is a carrying part, wherein the wiping part 422’ is underneath. The cross-section of the wiping part is shaped as a triangle or an approximate letter T. The height of the carrying part 42T is between 2 and 10 mm, preferably between 2 and 6 mm. The material for the wiping element 42' according to this embodiment is any suitable material as described above. Preferably, silicone with treated surface with any process for reducing friction between the wiper and the visor is used.

[0046] For installation of the wiper to the helmet visor, the rail 31 is installed on the visor 11 , and a guide mounted in the bottom part of the housing 21 is installed in the rail 31. Further details are visible in figure 5a, wherein the guide is shaped to correspond, i.e. fit in the rail. The guide 32 has a hole along its entire length, said hole arranged to receive a pin 331 of the lock 33, wherein said pin 331 is designed as a rod with three wider parts 331a, 331 b, 331c, and wherein two wider parts 331a, 331c are provided on each end of the rod and the third wider part 331 b is provided in a middle part of the pin 331. Between the middle wider part 331 b and one of the remaining wider parts 331a, 331c a spring 332 is installed, said spring allowing application of pressure to one of each end of the pin 331 .

[0047] According to a possible embodiment shown in figure 5a the pin has two wider parts 331 b, 331c are shaped as truncated cones, which efficiently locks the position of the wiper in the rail, wherein the shape of the wider part 331a is shorter truncated cone. The wider parts may be arbitrarily shaped, not only as truncated cones, wherein all wider parts may have the same or different shapes.

[0048] As shown in figure 5c the rail 31 has a base body 311 with an attachment part 312 on both sides of the base body, wherein said attachment part 312 is provided with openings 312a for receiving a screw for attachment to the visor. The base body has on both sides before the attachment part 312 a raised part 313, both raised parts shaped as an upside-down letter L, which defines a space 313a arranged to receive the form-fitting part of the guide. The raised parts are on their upper side, i.e. the side in contact with the pin, provided with a groove 3131 , which function as a seat for two of the wider parts of the pin, which fixes the rail and the guide and prevents their mutual movement even in case of vibrations, high speed, or similar effects. The grooves may be shaped to correspond to the shape of wider parts. The depth of each groove can be different on both ends of each raised part 313 to match the shape of wider parts, preferably designed as truncated cones.

[0049] Figure 5d shows the guide 32 arranged to receive the rail, wherein the guide has a base body 321 approximately shaped as a square, through which in the upper part (closer to the wiper housing) a hole 322 is provided, said hole arranged to receive the pin, and in the bottom part (under the said hole) it is provided with protruding parts 323, which correspond (shape-engage) with the rail 31 .

[0050] The installation of the pin with the spring in the guide is shown in Figure 5e, wherein the spring is installed between the wider part 331 b in the middle and the wider part 331c at the end of the pin, which is installed on the pin itself after the pin is installed in the hole.

[0051] An alternative embodiment, which is possible within the invention, is to provide the rail on the wiper and the guide installed on the visor, however, this is a less preferred embodiment due to pin installation. In this alternative embodiment the hole for the pin is provided on the rail, which have a base body suitable for providing the hole, wherein the groove is provided on the guide and wherein engagement between the wider parts of the pin and the groove is the same as in the above-described preferred embodiment.

[0052] When the pin is pressed from one side and the spring contracts, the two wider parts move out of the two grooves and the guide can be pulled out of the rail. The guide is also installed in the rail in the same manner.

Claims

Patent claims1 . A wiper (2) for a visor (11 ) of a helmet (1 ), said wiper (2) comprising:- a blade comprising a frame (41 ) and a wiping element (42),- an arm (43) connecting said blade to a housing (21 ) of the wiper (2),- the housing (21 ) with an electric motor and a battery, and- an attachment assembly (3) arranged for mounting the wiper on the helmet (1 ) or the visor (11 ), wherein the blade comprises:- the frame (41 , 41') with at least three mountings (41a, 41 b, 41c, 41 'a, 41 'b, 41c') for mounting the wiping element (42, 42'), and- a replaceable wiping element (42, 42'), which comprises at least a wiping part (422, 422') arranged to contact the visor (11 ), wherein the wiping element is attached to the frame (41 , 41 ') with: o a holder (421 ) with at least three pairs of wider parts corresponding to the mountings (41 a, 41 b, 41 c) on the frame (41 ), or o protrusions (423'a, 423'b, 423'c) provided on or in the wiping part (421', 422'), corresponding to the mountings on the frame (41').

2. The wiper (2) for a visor (11 ) of a helmet (1 ) according to claim 1 , wherein the wiping element (42) is attached to the frame (41 ) with three mountings shaped as guides (41a, 41 b, 41c), into which said plastic holder (421 ) of the wiping element (42) is inserted, which has three pairs of wider parts (421a, 421 b, 421c) arranged to fit into said guides (41a, 41b, 41c).

3. The wiper (2) for a visor (11 ) of a helmet (1 ) according to claim 1 , wherein the wiping element (42') is attached to the frame with mountings provided with a snap hole (41 'a, 41'b, 41'c) that correspond to protrusions (423'a, 423'b, 423'c) shaped as pins on the carrying part (42T) of the wiping element (42'), wherein said pins are a part of the wiping element (42') or separate elements glued, welded, vulcanised or connected in any other manner with the wiping element (42').

4. The wiper (2) for a visor (11 ) of a helmet (1 ) according to claim 3, wherein said pins (423'a, 423'b, 423'c) are made from metallic or non-metallic materials.

5. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any of the preceding claims, wherein the transverse cross-section of the wiping part (422, 422') is shaped as a triangle or a letter T, wherein its narrow top is arranged to contact the visor.

6. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any claim from 3 to 5, wherein the wiping part (422') is in its upper part provided with a carrying part (42T) made of the same material, having a height between 2 and 10 mm, preferably 2 to 6 mm, and the pins (423'c, 423'b, 423'c) are mounted in or on the said carrying part (42T).

7. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any of the preceding claims, wherein the wiping part (422, 422') is made of natural or synthetic rubber, silicone or any other elastomeric material, such as thermoplastic elastomers, thermoplastic polyurethane, or polyurethane, or combinations of said materials.

8. The wiper (2) for a visor (11 ) of a helmet (1 ) according to claim 7, wherein the wiping part (422, 422') is made of silicone, the surface of which is additionally treated with a process selected from the group consisting of fluorination, application of a parylene layer, application of a Slick Sil layer, the Quniton process and treatment with plasma.

9. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any of the preceding claims, wherein the frame (41 , 4T) has two parts with a joint (414, 414'), wherein the frame comprises a first arc (411 , 41 T), on which an attachment element for connection with the arm (43) is provided, and a second arc comprising two elements (412, 412', 413, 413'), which are in the centre connected in a fulcrum (414, 414'), which simultaneously functions as the joint for connection with the first arc (411 , 41 T), wherein the fulcrum (414, 414') is achieved with a bolt or anut, or any other suitable element or combination of elements that allow movement of said frame (41 ) parts.

10. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any of the preceding claims, wherein the frame (41 ) of the wiper is made from any suitable material, preferably from plastic.

11. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any of the preceding claims, wherein attachment assembly (3) comprises two shape-engaging elements (31 , 32), wherein the first element (32) is arranged for installation on or as a part of the wiper (2) and the second element (31) is arranged for installation on or as a part of the visor or the helmet (11 , 1 ), wherein said assembly (3) further comprises a lock (33) configured to prevent the wiper (2) from falling out.

12. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any of the preceding claims, wherein the lock is designed as a combination of:- a hole formed in the first element (32), the hole configured to receive a pin (331 ),- at least one groove (3131 ), preferably two grooves, on the second element, wherein the at least one groove is configured to receive at least one wider part (331 b, 331c) of the pin rod (331 ) in a locked state of the lock, which prevents mutual movement of the two shape-engaging elements (31 , 32), and- a pin (331 ) shaped as a rod with at least one wider part (331 b, 331c), preferably two wider parts, wherein one wider part (331c) on one end of the rod and a second wider part (331b) in the middle part or both are joined into one longer wider part, wherein upon pressure to one end of the pin displaces the a second wider part (331 b, 331c) from the groove (3131 ) into free space, which unlocks the lock.

13. The wiper (2) for a visor (11 ) of a helmet (1 ) according to claim 12, wherein two wider parts (331 b, 331c) are provided and between said wider parts (331 b, 331c) a spring is installed, which is configured to ensure pressure to one of both ends ofthe pin (331 ), so that upon pressure to one end of the pin (331) the spring is configured to compress and the wider part from the groove (3131 ) is arranged to move into a free space, thus unlocking the lock.

14. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any claim from 12 to 13, wherein the pin rod (331 ) is provided with three wider parts (331a, 331b, 331c), wherein two wider parts (331a, 331c) are provided on both ends of the rod and the third wider par (331 b) is provided in the middle part, and wherein a spring is provided between the middle wider part (331 b) and one of the remaining wider parts (331a, 331c).

15. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any claim from 12 to 14, wherein the wider parts (331a, 331 b, 331c) are shaped as truncated cones.

16. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any claim from 12 to 15, wherein the second element (31 ) is installed or provided close to a bottom or an upper edge of the visor (11 ).

17. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any claim from 12 to 16, wherein the first element (32) is shaped as a guide and the second element (31 ) is shaped as rail.

18. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any claim from 12 to 17, wherein the first element (32) is shaped as a guide installed on or as a part of the wiper (2), and the second element (31 ) is shaped as rail and installed on or as a part of visor (11 ) or the helmet (1 ).

19. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any claim from 12 to 18, wherein the rail (31 ) comprises a base body (311 ), which is on both sides provided with an attachment part (312) with openings (312a) arranged to receive a screw for attachment to the visor, wherein the base body (311 ) is on both sides before the attachment part (312) provided with raised parts (313) shaped asupside-down letter L defining a space (313a) arranged to receive the shapeengaging part of the guide (32), and wherein each raised part (313) is on its upper side, i.e. the side in contact with the pin, provided with a groove (3131 ) arranged to receive the wider part (331 b, 331 c) of the pin (331 ).

20. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any claim from 12 to 19, wherein depth of each groove (3131 ) is different on both ends of each raised part (313) in order to correspond to the shape of wider parts (331 b, 331c) shaped as truncated cones.21 . The wiper (2) for a visor (11 ) of a helmet (1 ) according to any claim from 12 to 20, wherein the guide (32) is shaped as a base body (321 ) approximately shaped as a square, through which a hole (332) arranged to receive the pin is provided in the upper part, while in the bottom part under said hole (332) both sides are provided with protrusions (323) with a shape corresponding to the rail (31 ).

22. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any claim from 12 to 21 , wherein the guide (32) and the rail (31 ) are made from plastic, preferably using plastic injection moulding, wherein the pin (331 ) and the spring are made from metal.

23. The wiper (2) for a visor (11 ) of a helmet (1 ) according to any claim from 12 to 22, wherein the wiper is configured to:- attach the rail (31 ) to the visor (11 ) with screws, wherein the visor has to be provided with drilled holes,- fixedly attach the rail (31 ) to the visor (11 ) with ultrasonic welding, high- frequency welding or gluing, or- the rail (31 ) is a part of the visor (11 ) and is injection-moulded in the same process as injection moulding of the visor (11) plastic.

24. A visor (11 ) for a helmet (1 ) with the wiper (2) according to any of the preceding claims.

25. The helmet (1) with the visor (11) or the wiper (2) according to any of the preceding claims.

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