CA2263384C - Hockey helmet with self-adjusting padding - Google Patents
Hockey helmet with self-adjusting padding Download PDFInfo
- Publication number
- CA2263384C CA2263384C CA002263384A CA2263384A CA2263384C CA 2263384 C CA2263384 C CA 2263384C CA 002263384 A CA002263384 A CA 002263384A CA 2263384 A CA2263384 A CA 2263384A CA 2263384 C CA2263384 C CA 2263384C
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- CA
- Canada
- Prior art keywords
- pad assembly
- protective helmet
- helmet shell
- assembly
- interlocking tongue
- 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.)
- Expired - Lifetime
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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
- A42B3/10—Linings
- A42B3/12—Cushioning devices
- A42B3/125—Cushioning devices with a padded structure, e.g. foam
- A42B3/127—Cushioning devices with a padded structure, e.g. foam with removable or adjustable pads
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/32—Collapsible helmets; Helmets made of separable parts ; Helmets with movable parts, e.g. adjustable
- A42B3/324—Adjustable helmets
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- Helmets And Other Head Coverings (AREA)
Abstract
A pad assembly for use in a protective helmet shell (10), said inner pad assembly being formed from a resilient material. The inner pad assembly includes a front pad assembly (20a), a back pad assembly (20c) and an intermediate pad assembly (20b), wherein the front pad assembly is attached to a front portion of said helmet shell, the back pad assembly is attached to a back portion of the helmet shell, and the intermediate pad assembly is centrally located between said front pad assembly and the back pad assembly and further slidably connected to the front pad assembly and to the back pad assembly.
Description
WO 98/23174 ~ PCT/CA97/00905 HOCKEY HELMET WITH SELF-ADJUSTING PADDING
FIELD OF THE INVENTION
The present invention is directed to a protective helmet suitable for use in sporting activities such as hockey, and more particularly to a novel padding structure for use in hockey helmets.
BACKGROUND OF THE INVENTION
The use of protective headgear in various types of sports or hazardous activities is well known. Conventional protective helmets have one or more inner pads secured by fasteners to the inner surfaces of a rigid helmet shell and are generally adapted to conform to the shape of a wearer's head. A principal concern is the ability of a protective helmet to absorb specific forces. In the case of hockey helmets, these standards have been set forth by the Canadian Standards Association, in their Standards for Hockey Helmets, under publication No. 2262.1-1975, and are generally internationally accepted. For instance, corresponding H.E.C.C, C.E.N. and I.S.O. standards have been established.
One of the problems associated with the use of such helmets arises when the inner pads of the helmet are not properly fitted to the head of the user. Since human heads vary widely in size and shape, these variances create significant difficulties in designing hockey helmets which are required to fit tightly on the head of the wearer to provide the desired level of protection. This problem is further exacerbated when high density foam materials are used to form the padding due-to the inherent non-compliant nature of these materials. However the use of high density foam padding material is advantageous due to its ability to absorb significant levels of energy. There is therefore a need for an improved hockey helmet which achieves enhanced fit to the head of a wearer, which enhances the comfort and which utilizes high density padding but which is comfortable to the wearer.
SUMMARY OF THE INVENTION
As embodied and broadly described herein, the present invention provides a pad 1o assembly for use in a protective helmet shell, the pad assembly being formed from. a shock absorbing material and comprising a front pad assembly, a back pad assembly, and an intermediate pad assembly centrally positionable beaween the front pad assembly and the back pad assembly, and wherein the intermediate pad is slidably connectable to the front pad assembly and to the back pad assembly.
1s The invention also provides a protective helmet comprising a pad assembly and a protective helmet shell, the protective helmet shell comprising a front portion and. a back portion, the pad assembly being formed of shock-absorbing material and comprising a front pad assembly secured to the front portion, a back pad assembly 2o secured to the back portion, an unsecured intermediate pad assembly centrally positioned between the front pad assembly and the back pad assembly, and means for slidably connecting the intermediate pad assembly to the front pad assembly and to the back pad assembly.
2s The invention further provides a pad assembly for use in a protective helmet shell, t:he pad assembly being formed of shock-absorbing material and comprising a front pad assembly, a back pad assembly, an intermediate pad assembly centrally positioned between the front pad assembly and the back pad assembly, and an interlocking tongue, the intermediate pad assembly being slidably connected to the front pad 3o assembly and to the back pad assembly by the interlocking tongue, wherein the intermediate pad assembly comprises a front portion and a rear portion, and the interlocking tongue protrudes from both the front portion and the rear portion of the
FIELD OF THE INVENTION
The present invention is directed to a protective helmet suitable for use in sporting activities such as hockey, and more particularly to a novel padding structure for use in hockey helmets.
BACKGROUND OF THE INVENTION
The use of protective headgear in various types of sports or hazardous activities is well known. Conventional protective helmets have one or more inner pads secured by fasteners to the inner surfaces of a rigid helmet shell and are generally adapted to conform to the shape of a wearer's head. A principal concern is the ability of a protective helmet to absorb specific forces. In the case of hockey helmets, these standards have been set forth by the Canadian Standards Association, in their Standards for Hockey Helmets, under publication No. 2262.1-1975, and are generally internationally accepted. For instance, corresponding H.E.C.C, C.E.N. and I.S.O. standards have been established.
One of the problems associated with the use of such helmets arises when the inner pads of the helmet are not properly fitted to the head of the user. Since human heads vary widely in size and shape, these variances create significant difficulties in designing hockey helmets which are required to fit tightly on the head of the wearer to provide the desired level of protection. This problem is further exacerbated when high density foam materials are used to form the padding due-to the inherent non-compliant nature of these materials. However the use of high density foam padding material is advantageous due to its ability to absorb significant levels of energy. There is therefore a need for an improved hockey helmet which achieves enhanced fit to the head of a wearer, which enhances the comfort and which utilizes high density padding but which is comfortable to the wearer.
SUMMARY OF THE INVENTION
As embodied and broadly described herein, the present invention provides a pad 1o assembly for use in a protective helmet shell, the pad assembly being formed from. a shock absorbing material and comprising a front pad assembly, a back pad assembly, and an intermediate pad assembly centrally positionable beaween the front pad assembly and the back pad assembly, and wherein the intermediate pad is slidably connectable to the front pad assembly and to the back pad assembly.
1s The invention also provides a protective helmet comprising a pad assembly and a protective helmet shell, the protective helmet shell comprising a front portion and. a back portion, the pad assembly being formed of shock-absorbing material and comprising a front pad assembly secured to the front portion, a back pad assembly 2o secured to the back portion, an unsecured intermediate pad assembly centrally positioned between the front pad assembly and the back pad assembly, and means for slidably connecting the intermediate pad assembly to the front pad assembly and to the back pad assembly.
2s The invention further provides a pad assembly for use in a protective helmet shell, t:he pad assembly being formed of shock-absorbing material and comprising a front pad assembly, a back pad assembly, an intermediate pad assembly centrally positioned between the front pad assembly and the back pad assembly, and an interlocking tongue, the intermediate pad assembly being slidably connected to the front pad 3o assembly and to the back pad assembly by the interlocking tongue, wherein the intermediate pad assembly comprises a front portion and a rear portion, and the interlocking tongue protrudes from both the front portion and the rear portion of the
-2-intermediate pad assembly and has a length sufficient to partially overlap the front pad assembly and the back pad assembly.
Moreover, the invention provides a protective helmet comprising: (a) an outer rigid helmet shell comprising a front portion, a back portion and an inner surface and being shaped to protect top, rear; front and side regions of the head of a wearer;
and (b) a pad assembly disposed in the helmet shell, the pad assembly being formed of a shock-absorbing material and comprising a front pad assembly secured to the front portion, a back pad assembly secured to the back portion, and a loose intermediate pad assembly 1 o centrally positioned between the front pad assembly and the back pad assembly, a~zd wherein the intermediate pad assembly is slidably connected to the front pad assembly and to the back pad assembly.
The invention also provides a protective helmet comprising: (a) an outer rigid helmet shell comprising a front portion, a back portion, and an inner surface and being shaped to protect top, rear, front, and side regions of the head of a wearer;
and (b) a pad assembly disposed in the helmet shell, the pad assembly being formed of a shock-absorbing material and comprising a front pad assembly, a back pad assembly, an intermediate pad assembly centrally positioned between the front pad assembly and 2o the back pad assembly, and an interlocking tongue and wherein the intermediate pad assembly is slidably connected to the front pad assembly and to the back pad assembly by the interlocking tongue.
Lastly, the invention provides a hockey helmet comprising (a) an outer rigid helmet shell comprising a front portion, a back portion, and an inner surface and being shaped to protect top, rear, front, and side regions of the head of a wearer;
and (b) a pad assembly disposed in the helmet shell, the pad assembly being formed of a shock-absorbing material and comprising a front pad assembly, a back pad assembly, an intermediate pad assembly centrally positioned between the front pad assembly and 3o the back pad assembly, a front interlocking tongue extending fi°om a front portion of the intermediate pad assembly, and a rear interlocking tongue extending from a rear portion of the intermediate pad assembly, and wherein the intermediate pad assembly
Moreover, the invention provides a protective helmet comprising: (a) an outer rigid helmet shell comprising a front portion, a back portion and an inner surface and being shaped to protect top, rear; front and side regions of the head of a wearer;
and (b) a pad assembly disposed in the helmet shell, the pad assembly being formed of a shock-absorbing material and comprising a front pad assembly secured to the front portion, a back pad assembly secured to the back portion, and a loose intermediate pad assembly 1 o centrally positioned between the front pad assembly and the back pad assembly, a~zd wherein the intermediate pad assembly is slidably connected to the front pad assembly and to the back pad assembly.
The invention also provides a protective helmet comprising: (a) an outer rigid helmet shell comprising a front portion, a back portion, and an inner surface and being shaped to protect top, rear, front, and side regions of the head of a wearer;
and (b) a pad assembly disposed in the helmet shell, the pad assembly being formed of a shock-absorbing material and comprising a front pad assembly, a back pad assembly, an intermediate pad assembly centrally positioned between the front pad assembly and 2o the back pad assembly, and an interlocking tongue and wherein the intermediate pad assembly is slidably connected to the front pad assembly and to the back pad assembly by the interlocking tongue.
Lastly, the invention provides a hockey helmet comprising (a) an outer rigid helmet shell comprising a front portion, a back portion, and an inner surface and being shaped to protect top, rear, front, and side regions of the head of a wearer;
and (b) a pad assembly disposed in the helmet shell, the pad assembly being formed of a shock-absorbing material and comprising a front pad assembly, a back pad assembly, an intermediate pad assembly centrally positioned between the front pad assembly and 3o the back pad assembly, a front interlocking tongue extending fi°om a front portion of the intermediate pad assembly, and a rear interlocking tongue extending from a rear portion of the intermediate pad assembly, and wherein the intermediate pad assembly
-3-is slidably connected to the front pad assembly and to the back pad assembly by the respective front and rear interlocking tongues.
BRIEF DESCRIPTION OF TIIE DRAWINGS
Figure 1 is an exploded perspective view of the protective helmet of the present invention illustrating the helmet shell and pad assemblies.
Figure 2 is a side view of the protective helmet of the present invention illustrating the 1o helmet shell and pad assemblies.
Figure 3 is an exploded side view of the pad assemblies of the present invention.
-3a-
BRIEF DESCRIPTION OF TIIE DRAWINGS
Figure 1 is an exploded perspective view of the protective helmet of the present invention illustrating the helmet shell and pad assemblies.
Figure 2 is a side view of the protective helmet of the present invention illustrating the 1o helmet shell and pad assemblies.
Figure 3 is an exploded side view of the pad assemblies of the present invention.
-3a-
4 ~ PCT/CA97/00905 Figure 4 is a bottom view of the hockey helmet of the -present invention illustrating the interconnection of the pad assemblies in the helmet shell.
Figure 5 is a fragmentary sectional view of the main pad assemblies of the present invention.
Figure 6 is a sectional view of the helmet of the present invention illustrating the interconnection of the intermediate pad with both the front and back pads taken along line 6-6 of figure 4.
Figure 7 is an exploded bottom view of the pad assemblies of the present invention.
Figure 8 is a cross-sectional view of the inner pad assembly according to a further embodiment of the invention.
DESCRIPTION OF THE PREFERRED EHBODIHENTS
Referring to figures 1 and 2, there is shown a protective helmet comprising an outer helmet shell 10 which is preferably made of a relatively rigid material, such as a polycarbonate alloy, a rigid thermoplastic, or a thermosetting resin. The helmet shell 10 is provided with a plurality of mounting holes 50a, 50b and 50c, each one having a shape which substantially conforms to a fastener, as hereinafter described, which is inserted into the mounting hole and releasably secured therein by securement means, not shown. The helmet shell 10 may also be provided with a plurality of ventilation apertures 18 located along a front portion and a rear portion of the helmet shell 10.
The protective helmet further comprises an inner pad assembly which includes a front pad assembly 20a, an intermediate pad assembly 20b and a back pad assembly 20c.
The inner pad assembly is positioned within the helmet shell 10 to dissipate forces applied against the helmet shell 10 thereby protecting a wearer's head from the applied forces. It is preferred that the front pad assembly 20a, the intermediate pad assembly 20b and the back pad assembly 20c cover substantially the entire inner surface of the helmet shell 10.
Referring to figures 1 - 7, it is seen that-the front pad assembly 20a, the intermediate pad assembly 20b and the back pad assembly 20c comprise the following general characteristics. Each pad assembly 20a, 20b and 20c, respectively have a back surface 21 defining a helmet shell contacting surface, a front surface 22 defining a wearer contacting surface, and side surfaces 23 connecting said back and front surfaces and defining a thickness 24 of each respective pad assembly. The front pad assembly 20a is generally rearwardly curved, so that it is adapted to generally accommodate at least the forehead portion of the wearer. The front pad assembly 20a also includes a pair of downwardly extending legs 75 which serve to protect the temple area. The intermediate pad assembly 20b is generally adapted to accommodate the upper portion of the human head as well as the left and right sides of the human head. The intermediate pad assembly has a top portion 40 which is generally downwardly concave and bottom portion 41 which is preferably adapted to accommodate a wearer's ear on each side. Intermediate pad assembly 20b may optionally taper slightly towards a front portion 42 to form a front recessed area 44 and towards a rear portion 43 to form a rear recessed area not shown. Front portion 42 and rear portion 43 of intermediate pad assembly 20b are adapted to
Figure 5 is a fragmentary sectional view of the main pad assemblies of the present invention.
Figure 6 is a sectional view of the helmet of the present invention illustrating the interconnection of the intermediate pad with both the front and back pads taken along line 6-6 of figure 4.
Figure 7 is an exploded bottom view of the pad assemblies of the present invention.
Figure 8 is a cross-sectional view of the inner pad assembly according to a further embodiment of the invention.
DESCRIPTION OF THE PREFERRED EHBODIHENTS
Referring to figures 1 and 2, there is shown a protective helmet comprising an outer helmet shell 10 which is preferably made of a relatively rigid material, such as a polycarbonate alloy, a rigid thermoplastic, or a thermosetting resin. The helmet shell 10 is provided with a plurality of mounting holes 50a, 50b and 50c, each one having a shape which substantially conforms to a fastener, as hereinafter described, which is inserted into the mounting hole and releasably secured therein by securement means, not shown. The helmet shell 10 may also be provided with a plurality of ventilation apertures 18 located along a front portion and a rear portion of the helmet shell 10.
The protective helmet further comprises an inner pad assembly which includes a front pad assembly 20a, an intermediate pad assembly 20b and a back pad assembly 20c.
The inner pad assembly is positioned within the helmet shell 10 to dissipate forces applied against the helmet shell 10 thereby protecting a wearer's head from the applied forces. It is preferred that the front pad assembly 20a, the intermediate pad assembly 20b and the back pad assembly 20c cover substantially the entire inner surface of the helmet shell 10.
Referring to figures 1 - 7, it is seen that-the front pad assembly 20a, the intermediate pad assembly 20b and the back pad assembly 20c comprise the following general characteristics. Each pad assembly 20a, 20b and 20c, respectively have a back surface 21 defining a helmet shell contacting surface, a front surface 22 defining a wearer contacting surface, and side surfaces 23 connecting said back and front surfaces and defining a thickness 24 of each respective pad assembly. The front pad assembly 20a is generally rearwardly curved, so that it is adapted to generally accommodate at least the forehead portion of the wearer. The front pad assembly 20a also includes a pair of downwardly extending legs 75 which serve to protect the temple area. The intermediate pad assembly 20b is generally adapted to accommodate the upper portion of the human head as well as the left and right sides of the human head. The intermediate pad assembly has a top portion 40 which is generally downwardly concave and bottom portion 41 which is preferably adapted to accommodate a wearer's ear on each side. Intermediate pad assembly 20b may optionally taper slightly towards a front portion 42 to form a front recessed area 44 and towards a rear portion 43 to form a rear recessed area not shown. Front portion 42 and rear portion 43 of intermediate pad assembly 20b are adapted to
5 substantially conform to the rear portion 73 of front pad assembly 20a and front portion 82 of back pad assembly 20c, respectively. The back pad assembly 20c has an upper portion 80 and a forward portion 83 at each side thereof, and there is a further ventilation aperture 88 formed in a back side 85 thereof. The purpose and location of s the ventilation apertures is discussed below in more details.
As is well known, it is important to provide free space within the interior of a protective helmet to permit evaporation of perspiration. As illustrated in FIGS. 1-4 and 6, each pad assembly is provided with one or more ventilation apertures 78 and l0 88 or ventilation channels 48 which are generally aligned with the ventilation.
apertures 18 in the helmet shell 10 to permit airflow in and out of the protective helmet, to promote cooling and to carry off warm moist air from within the protective helmet to the outside. Accordingly, the front pad assembly 20a is provided with ventilation apertures 78, the back pad assembly 20c is provided with ventilation 15 apertures 88, and the intermediate pad assembly 20b is provided with ventilation.
channels 48. It is preferred that the ventilation apertures 78 in the front pad assembly 20a, the ventilation channels 48 in the intermediate pad assembly 20b and the ventilation apertures 88 in the back pad assembly 20c be substantially aligned longitudinally, i.e. from a front portion of said protective helmet, beginning at 2o ventilation apertures 18 adj acent a front portion of the helmet shell 10 continuing through each respective pad assembly, and terminating at the ventilation apertures 18 adjacent a back portion of the helmet shell 10, to promote the movement of air through the helmet with movement of the wearer.
25 As shown in Figure 5, only two of the pad assemblies 20a and 20c are attached to helmet shell 10.
Referring to Figures 2-5, the front pad assembly 20a and the back pad assembly 20c further comprise fasteners 30b and 30c which are embedded into the front pad 3o assembly 20a, and fastener 30a which is embedded into back pad assembly 20c. The fasteners preferably extend outward and protrude from the surface of each respective pad assembly and is adapted to conform to the mounting holes 50a, SOb and SOc in
As is well known, it is important to provide free space within the interior of a protective helmet to permit evaporation of perspiration. As illustrated in FIGS. 1-4 and 6, each pad assembly is provided with one or more ventilation apertures 78 and l0 88 or ventilation channels 48 which are generally aligned with the ventilation.
apertures 18 in the helmet shell 10 to permit airflow in and out of the protective helmet, to promote cooling and to carry off warm moist air from within the protective helmet to the outside. Accordingly, the front pad assembly 20a is provided with ventilation apertures 78, the back pad assembly 20c is provided with ventilation 15 apertures 88, and the intermediate pad assembly 20b is provided with ventilation.
channels 48. It is preferred that the ventilation apertures 78 in the front pad assembly 20a, the ventilation channels 48 in the intermediate pad assembly 20b and the ventilation apertures 88 in the back pad assembly 20c be substantially aligned longitudinally, i.e. from a front portion of said protective helmet, beginning at 2o ventilation apertures 18 adj acent a front portion of the helmet shell 10 continuing through each respective pad assembly, and terminating at the ventilation apertures 18 adjacent a back portion of the helmet shell 10, to promote the movement of air through the helmet with movement of the wearer.
25 As shown in Figure 5, only two of the pad assemblies 20a and 20c are attached to helmet shell 10.
Referring to Figures 2-5, the front pad assembly 20a and the back pad assembly 20c further comprise fasteners 30b and 30c which are embedded into the front pad 3o assembly 20a, and fastener 30a which is embedded into back pad assembly 20c. The fasteners preferably extend outward and protrude from the surface of each respective pad assembly and is adapted to conform to the mounting holes 50a, SOb and SOc in
-6-helmet shell 10. Back pad assembly 20c is similarly attached or affixed to an opposite side of helmet shell 10 which is not shown in the figures. It is preferred that the securement means be releasable to permit removal of the inner pad assemblies.
Securement means (not shown) may be utilized to retain the fasteners 30a, 30b and 30c to the helmet shell 10 and may comprise any conventional releasable fastener such as threaded screws, bolts, rib fasteners, spring clips, and the like. It is preferred that the securement means comprises a threaded screw. While the fastener and securement means can be constructed from suitable materials such as metals, nylon-lo type materials, plastics, and the like, it is preferred that the fastener and securement means be constructed of plastics or nylon-type materials to provide added protection to a wearer of the helmet.
As shown in Figures 5 and 6, in use, the fastener 30b is inserted into a mating is mounting hole SOb formed in the helmet shell 10 and secured with securement means (not shown). In this manner, when the securement means is engaged in the fastener, the front pad assembly 20a is securely attached to the helmet shell 10.
Intermediate pad 20b is centrally located between said front pad assembly 20a and 2o said back pad assembly 20c and is slidably connected to said from: pad assembly 20a and to said back pad assembly 20c. As used herein, the terminology "slidably connected" refers to a connection means which permits said intermediate pad assembly 20b to slide from a first position wherein said intermediate pad assembly is more closely associated with front pad assembly 20a, to a second position wherein 25 said intermediate pad assembly 20b is more closely associated with back pad assembly 20c. In accordance with this aspect of the invention, front pad assembly 20a and back pad assembly 20c are generally separated from each other by a distance which is greater than a longitudinal dimension of intermediate pad assembly 20b so as to permit movement of intermediate pad assembly 20b from said first position to said 3o second position. As illustrated in Figure b, when intermediate pad assembly 20b is inserted between front pad assembly 20a and back pad assembly 20c, there is a gap 90 shown far illustrative purposes as being between the intermediate pad assembly 20b and back pad assembly 20c. It is of course understood that, as intermediate pad assembly slides from a front position as illustrated in Figure 6 to a rear position (not shown), the gap 90 will be similarly formed between the intermediate pad assembly 20b and the front pad assembly 20a.
Alternatively, as illustrated in Figures l and 3, intermediate pad assembly 20b may optionally be tapered along front pardon 42 and/or rear portion 43 to create recessed areas 44. Recessed areas 44 are sufficiently tapered so as to permit an overlap between intermediate pad assembly 20b and either front pad assembly 20a or back 1o pad assembly 20c, or both. Accordingly, rather than a gap being formed between the respective pad assemblies, the intermediate pad assembly may be slidably moved from a front position to a rear position along the length of the tapered recessed areas 44.
In accordance with the present invention, centrally located intermediate pad 20b is slidably connected to pads 20a and 20c by means of interlocking tongue means and thus, intermediate pad assembly 20b is preferably not secured to the helmet shell. The tongue means 60 protrudes from both the front portion 42 and the rear portion 43 of intermediate pad assembly 20b and has a length sufficient to overlap a portion of the front pad assembly 20a and the back pad assembly ZOc in a position intermediate at least a portion of the front pad assembly 20a and the helmet shell 10, and intermediate at least a portion of the back pad assembly 20c and the helmet shell 10. The front pad assembly 20a and the back pad assembly 20c thereby retain the intermediate pad assembly 20b within the helmet shell 10. Tongue means 60 is preferably planar, as illustrated in Figures 1, 3 and 7 having a major surface which is substantially parallel to the back surface 21 of the intermediate pad assembly 20b. In a preferred embodiment, tongue means 60 forms the uppermost surface of intermediate pad assembly 20b. Alternatively, tongue means 60 may be substantially cylindrical and may comprise a plurality of protrusions emanating from the front portion 42 and the 3o rear portion 43 of intermediate pad assembly 20b.
_g_ Tongue means 60 may be formed from any resilient material having sufficient rigidity, such that when tongue means 60 is slidably connected to front pad assembly 20a and rear pad assembly 20c, tongue means 60 securely retains intermediate pad assembly 20b in helmet shell 10. In a preferred embodiment, tongue means 60 is formed from a rigid plastic such as polystyrene, polypropylene, nylon, polycarbonate, and the like and combinations thereof. Tongue means 60 may be integrally formed with intermediate pad assembly 20b by conventional injection moulding techniques wherein tongue means 60 is placed in a suitably shaped mould and a foamed polymer is injected therein, the polymer is permitted to cure into a rigid structure, and the pad 1o assembly is then removed from the pad mould. Alternatively, tongue means 60 may be fastened to intermediate pad assembly 20b by means of any conventional fastening systems such as screws, bolts, adhesives, and the like and combinations thereof.
The front pad assembly 20a is preferably provided with a channel 79 located on a top surface of said front pad assembly 20a having a shape which generally corresponds to tongue means 60. Alternatively, the channel 79 may be in the form of a slot (not shown) within the thickness of the front pad assembly whereby the tongue means is inserted into said front pad assembly 20a. The back pad assembly is similarly provided with a channel 79 or slot as described above to slidably engage the tongue 2o means 60 along a rear portion 43 of intermediate pad assembly. :fn this manner, the tongue means 60 is slidably secured to both the front pad assembly 20a and to the back pad assembly 20c.
The pad assemblies 20a, 20b and 20c of the present invention may be formed from any resilient, mouldable, shock absorbing materials such as a foamed styrene polymer, a foamed urethane polymer or other rigid foam-like material being light in weight and having shock absorbing properties. Each pad assembly may have its outer surfaces treated to provide washable surfaces of the pads, for example, by dipping the pads in a suitable material such as liquid vinyl, urethane or latex. In.
addition, each pad 3o assembly may have a densified outer layer defining either the front surface 22, the back surface 22 or both the front and back surfaces. The process of densifying a pad assembly is more fully disclosed in U.S. Pat. No. 4,282,610.
Referring to Figure 5, when assembling the protective helmet of the present invention, a front pad assembly 20a is placed in a forward position in helmet shell 10, wherein the fastener 30b is aligned with a mounting hole (not shown) in the helmet shell 10, and is secured in place by means of securement means (not shown). Similarly, back pad assembly 20c is placed in a rearward position in helmet shell 10, wherein the fastener 30a is aligned with a mounting hole (not shown) in the helmet shell 10, and is secured in place by means of securement means (not shown). As shown in Figure 6, intermediate pad assembly is placed between the front pad assembly 20a and the back assembly 20c and slidably retained within the helmet shell by tongue means 60.
According to a further embodiment of the present invention, each of the inner pad assembly 20a, 20b and 20c comprises a first moulded inner liner I40a, 140b and 140c that is made from a generally rigid light weight foam-like material and also comprises second generally soft liners 138a to 138d that are secured to the inside of the first liners 140a, 140b and 140c. As shown more particularly in FIGURE 4, soft liners are preferably located at the front portion 138a, the rear portion 138b, the top portion 138c and the sides 138d.
The first moulded inner liners 140a, 140b or 140c may be formed from any resilient 2o preferably mouldable, shock absorbing materials such as a foamed styrene polymer, a foamed urethane polymer or other rigid foam-like material being Iight in weight and having shock absorbing properties. Each pad assembly may have its outer surfaces treated to provide washable surfaces of the pads, for example, by dipping the pads in a suitable material such as liquid vinyl, urethane or latex.
A preferred material for the first moulded inner liner I40a, 140b or 140c consists of an expanded polypropylene (EPP) having a density ranging preferably from about 2.75 to about 5.25 pounds per cubic feet (pcf), and ranging most preferably from about 3.5 to abut 4.5 pcf. In general, the thickness of the first inner liner is 3o approximately 1/2 inch although it may vary according to the needs.
-io-Apart from its ability to absorb and dissipate high amounts of energy, the use of EPP
also has the advantage of being light weight in comparison with the foam or foam-like liners of the prior art which have a density in the area of 7 pcf.
A preferred material for the second generally soft inner liners 138a to 138d consists of a synthetic thermoplastic polymer such as polyvinyl chloride (PVC). A most preferred material is an expanded padding having a thickness of approximately 7.5+-0.5 mm and having a density ranging preferably from about 12 to about 18 pcf and most preferably from about 14 to about 16 pc~ Such a product is sold under the name 1o CRESPADORO 143/96. The PVC liner has the advantage of being washable and of being non absorbent. The second liners 138a to 138d are attached to the inside of the first liner in any suitable manner. Preferably, they are glued but they could also be mechanically attached via velcro type fasteners.
During use, the second soft liner will readily compress and will provide for proper fitting of the helmet on the player's head while absorbing smaller amounts of energy, the higher amounts of energy being dissipated by the first liner 140a, 140b or 140c.
The liner of the helmet according to this embodiment of the present invention thus 2o comprises a front pad assembly 20a, an intermediate pad assembly 20b and a rear pad assembly 20c, each of which comprises a first moulded Liner 140a, 140b and 140c, and a second soft liner 138a to 138d. This combination brings about substantial advantages over the liners and helmets of the prior art in terms of performance and certification.
As previously mentioned, the standards that must be met by hockey helmets have been set forth by the Canadian Standards Association, in their standards for Hockey Helmets, under publications No. 2262.1-1975 and No. CAN/CSA-2262.2-M.90.
According to the procedure outlined in that standard, the structural integrity of the 3o helmet is determined by submitting it to various impacts at different sites such as the rear, side, crown, rear boss, front boss and front portions. By reason of its inherent geometry, a hockey helmet will generally have a relatively flat side and accordingly, more force will be transmitted to the head in this area upon impact. Since the side area of the helmet is the weakest point, helmet manufacturers will usually adjust their liner to a thickness and density such that it will meet the standard at that impact area. This determination will therefore affect the entire liner and the entire helmet. This results in a helmet that is always heavier than actually required since excess liner is used in areas where it is not required.
Contrary to this, the liner of the present invention may be customized to take into to consideration the weakest points and the geometry of the helmet. Therefore, by having a liner that is separated into distinct parts that cover various areas of the head, the inventors are capable of manufacturing a very light helmet For example, the density of the liner that is intended to cover the side area of the head (the weakest point of the helmet) may be kept higher and therefore more absorbing while the density of the liner in other areas may be kept lower, thereby :providing a lighter helmet. For example, in the case of the preferred embodiment described herein, the inventors have achieved very good performances by providing a liner in which the first moulded liner 140b has a density of approximately 4.25 to 4.5 pcf while the first moulded liners 140a and 140c have a density of approximately 3.5 pcf, the density of 2o the soft liners 138a to 138d remaining constant at approximately 15 to 16 pcf.
The person skilled in the art will realize that the concept of the present invention could be expanded and that the density of the second soft liner could also be modified, provided comfort is not unduly sacrificed and provided that the standards are met. In fact, the liner of the present invention is very well adapted to respond to any changes in certification requirements. Similarly, while the preferred embodiment has been described using the pad assemblies 20a, 20b and 20c, it is understood that the invention is not so limited and the numbers of parts may vary keeping in mind however that more parts will most likely result in a higher manufacturing cost.
As is well known, it is important to provide free space within the interior of a protective helmet to permit evaporation of perspiration. As illustrated in Figures 1 to 4, each pad assembly is provided with one or more ventilation apertures or channels 78, 48 and 88, which are generally aligned with the ventilation apertures 18 in the s helmet shell 10 to permit airflow in and out of the protective helmet, to promote cooling and to carry off warm moist air from within the protective helmet to the outside. Accordingly, the front pad assembly 20a is provided with ventilation apertures 78, the rear pad assembly 20c is provided with ventilation apertures 88, and the intermediate pad assembly 20b is provided with ventilation channels 48. It is to preferred that the ventilation apertures 78 in the front pad assembly 20a, the ventilation channels 48 in the intermediate pad assembly 20b and the ventilation apertures 88 in the rear pad assembly 20c be substantially aligned longitudinally, i.e.
from a front portion of the protective helmet, beginning at ventilation apertures 78 adjacent a fxont portion of the helmet shell 10, continuing through each respective pad Is assembly, and terminating at the ventilation apertures 88 adjacent a back portion of the helmet shell 10, to promote the movement of air through the helmet with movement of the wearer. This movement of the air is also facilitated by the presence of recessed areas 160, 162 and 164 which form a continuous channel from front to rear. Since the helmet is held comfortably in place through the second soft liners 138a 2o to 138d, the head of the wearer does not obstruct the continuous channels formed by recessed areas 160, 162 and 164; unlike the helmets of the prior art that use a foam or foam-like padding that fit snugly against the head. Ventilation is thus greatly improved.
2s With respect to the above description, it is to be realized that the optimum dimensional relationships for the parts of the invention, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent to one skilled in the art, and alI equivalent relationships to those illustrated in the drawings and described in the specification are intended to be 3o encompassed by the present invention.
Securement means (not shown) may be utilized to retain the fasteners 30a, 30b and 30c to the helmet shell 10 and may comprise any conventional releasable fastener such as threaded screws, bolts, rib fasteners, spring clips, and the like. It is preferred that the securement means comprises a threaded screw. While the fastener and securement means can be constructed from suitable materials such as metals, nylon-lo type materials, plastics, and the like, it is preferred that the fastener and securement means be constructed of plastics or nylon-type materials to provide added protection to a wearer of the helmet.
As shown in Figures 5 and 6, in use, the fastener 30b is inserted into a mating is mounting hole SOb formed in the helmet shell 10 and secured with securement means (not shown). In this manner, when the securement means is engaged in the fastener, the front pad assembly 20a is securely attached to the helmet shell 10.
Intermediate pad 20b is centrally located between said front pad assembly 20a and 2o said back pad assembly 20c and is slidably connected to said from: pad assembly 20a and to said back pad assembly 20c. As used herein, the terminology "slidably connected" refers to a connection means which permits said intermediate pad assembly 20b to slide from a first position wherein said intermediate pad assembly is more closely associated with front pad assembly 20a, to a second position wherein 25 said intermediate pad assembly 20b is more closely associated with back pad assembly 20c. In accordance with this aspect of the invention, front pad assembly 20a and back pad assembly 20c are generally separated from each other by a distance which is greater than a longitudinal dimension of intermediate pad assembly 20b so as to permit movement of intermediate pad assembly 20b from said first position to said 3o second position. As illustrated in Figure b, when intermediate pad assembly 20b is inserted between front pad assembly 20a and back pad assembly 20c, there is a gap 90 shown far illustrative purposes as being between the intermediate pad assembly 20b and back pad assembly 20c. It is of course understood that, as intermediate pad assembly slides from a front position as illustrated in Figure 6 to a rear position (not shown), the gap 90 will be similarly formed between the intermediate pad assembly 20b and the front pad assembly 20a.
Alternatively, as illustrated in Figures l and 3, intermediate pad assembly 20b may optionally be tapered along front pardon 42 and/or rear portion 43 to create recessed areas 44. Recessed areas 44 are sufficiently tapered so as to permit an overlap between intermediate pad assembly 20b and either front pad assembly 20a or back 1o pad assembly 20c, or both. Accordingly, rather than a gap being formed between the respective pad assemblies, the intermediate pad assembly may be slidably moved from a front position to a rear position along the length of the tapered recessed areas 44.
In accordance with the present invention, centrally located intermediate pad 20b is slidably connected to pads 20a and 20c by means of interlocking tongue means and thus, intermediate pad assembly 20b is preferably not secured to the helmet shell. The tongue means 60 protrudes from both the front portion 42 and the rear portion 43 of intermediate pad assembly 20b and has a length sufficient to overlap a portion of the front pad assembly 20a and the back pad assembly ZOc in a position intermediate at least a portion of the front pad assembly 20a and the helmet shell 10, and intermediate at least a portion of the back pad assembly 20c and the helmet shell 10. The front pad assembly 20a and the back pad assembly 20c thereby retain the intermediate pad assembly 20b within the helmet shell 10. Tongue means 60 is preferably planar, as illustrated in Figures 1, 3 and 7 having a major surface which is substantially parallel to the back surface 21 of the intermediate pad assembly 20b. In a preferred embodiment, tongue means 60 forms the uppermost surface of intermediate pad assembly 20b. Alternatively, tongue means 60 may be substantially cylindrical and may comprise a plurality of protrusions emanating from the front portion 42 and the 3o rear portion 43 of intermediate pad assembly 20b.
_g_ Tongue means 60 may be formed from any resilient material having sufficient rigidity, such that when tongue means 60 is slidably connected to front pad assembly 20a and rear pad assembly 20c, tongue means 60 securely retains intermediate pad assembly 20b in helmet shell 10. In a preferred embodiment, tongue means 60 is formed from a rigid plastic such as polystyrene, polypropylene, nylon, polycarbonate, and the like and combinations thereof. Tongue means 60 may be integrally formed with intermediate pad assembly 20b by conventional injection moulding techniques wherein tongue means 60 is placed in a suitably shaped mould and a foamed polymer is injected therein, the polymer is permitted to cure into a rigid structure, and the pad 1o assembly is then removed from the pad mould. Alternatively, tongue means 60 may be fastened to intermediate pad assembly 20b by means of any conventional fastening systems such as screws, bolts, adhesives, and the like and combinations thereof.
The front pad assembly 20a is preferably provided with a channel 79 located on a top surface of said front pad assembly 20a having a shape which generally corresponds to tongue means 60. Alternatively, the channel 79 may be in the form of a slot (not shown) within the thickness of the front pad assembly whereby the tongue means is inserted into said front pad assembly 20a. The back pad assembly is similarly provided with a channel 79 or slot as described above to slidably engage the tongue 2o means 60 along a rear portion 43 of intermediate pad assembly. :fn this manner, the tongue means 60 is slidably secured to both the front pad assembly 20a and to the back pad assembly 20c.
The pad assemblies 20a, 20b and 20c of the present invention may be formed from any resilient, mouldable, shock absorbing materials such as a foamed styrene polymer, a foamed urethane polymer or other rigid foam-like material being light in weight and having shock absorbing properties. Each pad assembly may have its outer surfaces treated to provide washable surfaces of the pads, for example, by dipping the pads in a suitable material such as liquid vinyl, urethane or latex. In.
addition, each pad 3o assembly may have a densified outer layer defining either the front surface 22, the back surface 22 or both the front and back surfaces. The process of densifying a pad assembly is more fully disclosed in U.S. Pat. No. 4,282,610.
Referring to Figure 5, when assembling the protective helmet of the present invention, a front pad assembly 20a is placed in a forward position in helmet shell 10, wherein the fastener 30b is aligned with a mounting hole (not shown) in the helmet shell 10, and is secured in place by means of securement means (not shown). Similarly, back pad assembly 20c is placed in a rearward position in helmet shell 10, wherein the fastener 30a is aligned with a mounting hole (not shown) in the helmet shell 10, and is secured in place by means of securement means (not shown). As shown in Figure 6, intermediate pad assembly is placed between the front pad assembly 20a and the back assembly 20c and slidably retained within the helmet shell by tongue means 60.
According to a further embodiment of the present invention, each of the inner pad assembly 20a, 20b and 20c comprises a first moulded inner liner I40a, 140b and 140c that is made from a generally rigid light weight foam-like material and also comprises second generally soft liners 138a to 138d that are secured to the inside of the first liners 140a, 140b and 140c. As shown more particularly in FIGURE 4, soft liners are preferably located at the front portion 138a, the rear portion 138b, the top portion 138c and the sides 138d.
The first moulded inner liners 140a, 140b or 140c may be formed from any resilient 2o preferably mouldable, shock absorbing materials such as a foamed styrene polymer, a foamed urethane polymer or other rigid foam-like material being Iight in weight and having shock absorbing properties. Each pad assembly may have its outer surfaces treated to provide washable surfaces of the pads, for example, by dipping the pads in a suitable material such as liquid vinyl, urethane or latex.
A preferred material for the first moulded inner liner I40a, 140b or 140c consists of an expanded polypropylene (EPP) having a density ranging preferably from about 2.75 to about 5.25 pounds per cubic feet (pcf), and ranging most preferably from about 3.5 to abut 4.5 pcf. In general, the thickness of the first inner liner is 3o approximately 1/2 inch although it may vary according to the needs.
-io-Apart from its ability to absorb and dissipate high amounts of energy, the use of EPP
also has the advantage of being light weight in comparison with the foam or foam-like liners of the prior art which have a density in the area of 7 pcf.
A preferred material for the second generally soft inner liners 138a to 138d consists of a synthetic thermoplastic polymer such as polyvinyl chloride (PVC). A most preferred material is an expanded padding having a thickness of approximately 7.5+-0.5 mm and having a density ranging preferably from about 12 to about 18 pcf and most preferably from about 14 to about 16 pc~ Such a product is sold under the name 1o CRESPADORO 143/96. The PVC liner has the advantage of being washable and of being non absorbent. The second liners 138a to 138d are attached to the inside of the first liner in any suitable manner. Preferably, they are glued but they could also be mechanically attached via velcro type fasteners.
During use, the second soft liner will readily compress and will provide for proper fitting of the helmet on the player's head while absorbing smaller amounts of energy, the higher amounts of energy being dissipated by the first liner 140a, 140b or 140c.
The liner of the helmet according to this embodiment of the present invention thus 2o comprises a front pad assembly 20a, an intermediate pad assembly 20b and a rear pad assembly 20c, each of which comprises a first moulded Liner 140a, 140b and 140c, and a second soft liner 138a to 138d. This combination brings about substantial advantages over the liners and helmets of the prior art in terms of performance and certification.
As previously mentioned, the standards that must be met by hockey helmets have been set forth by the Canadian Standards Association, in their standards for Hockey Helmets, under publications No. 2262.1-1975 and No. CAN/CSA-2262.2-M.90.
According to the procedure outlined in that standard, the structural integrity of the 3o helmet is determined by submitting it to various impacts at different sites such as the rear, side, crown, rear boss, front boss and front portions. By reason of its inherent geometry, a hockey helmet will generally have a relatively flat side and accordingly, more force will be transmitted to the head in this area upon impact. Since the side area of the helmet is the weakest point, helmet manufacturers will usually adjust their liner to a thickness and density such that it will meet the standard at that impact area. This determination will therefore affect the entire liner and the entire helmet. This results in a helmet that is always heavier than actually required since excess liner is used in areas where it is not required.
Contrary to this, the liner of the present invention may be customized to take into to consideration the weakest points and the geometry of the helmet. Therefore, by having a liner that is separated into distinct parts that cover various areas of the head, the inventors are capable of manufacturing a very light helmet For example, the density of the liner that is intended to cover the side area of the head (the weakest point of the helmet) may be kept higher and therefore more absorbing while the density of the liner in other areas may be kept lower, thereby :providing a lighter helmet. For example, in the case of the preferred embodiment described herein, the inventors have achieved very good performances by providing a liner in which the first moulded liner 140b has a density of approximately 4.25 to 4.5 pcf while the first moulded liners 140a and 140c have a density of approximately 3.5 pcf, the density of 2o the soft liners 138a to 138d remaining constant at approximately 15 to 16 pcf.
The person skilled in the art will realize that the concept of the present invention could be expanded and that the density of the second soft liner could also be modified, provided comfort is not unduly sacrificed and provided that the standards are met. In fact, the liner of the present invention is very well adapted to respond to any changes in certification requirements. Similarly, while the preferred embodiment has been described using the pad assemblies 20a, 20b and 20c, it is understood that the invention is not so limited and the numbers of parts may vary keeping in mind however that more parts will most likely result in a higher manufacturing cost.
As is well known, it is important to provide free space within the interior of a protective helmet to permit evaporation of perspiration. As illustrated in Figures 1 to 4, each pad assembly is provided with one or more ventilation apertures or channels 78, 48 and 88, which are generally aligned with the ventilation apertures 18 in the s helmet shell 10 to permit airflow in and out of the protective helmet, to promote cooling and to carry off warm moist air from within the protective helmet to the outside. Accordingly, the front pad assembly 20a is provided with ventilation apertures 78, the rear pad assembly 20c is provided with ventilation apertures 88, and the intermediate pad assembly 20b is provided with ventilation channels 48. It is to preferred that the ventilation apertures 78 in the front pad assembly 20a, the ventilation channels 48 in the intermediate pad assembly 20b and the ventilation apertures 88 in the rear pad assembly 20c be substantially aligned longitudinally, i.e.
from a front portion of the protective helmet, beginning at ventilation apertures 78 adjacent a fxont portion of the helmet shell 10, continuing through each respective pad Is assembly, and terminating at the ventilation apertures 88 adjacent a back portion of the helmet shell 10, to promote the movement of air through the helmet with movement of the wearer. This movement of the air is also facilitated by the presence of recessed areas 160, 162 and 164 which form a continuous channel from front to rear. Since the helmet is held comfortably in place through the second soft liners 138a 2o to 138d, the head of the wearer does not obstruct the continuous channels formed by recessed areas 160, 162 and 164; unlike the helmets of the prior art that use a foam or foam-like padding that fit snugly against the head. Ventilation is thus greatly improved.
2s With respect to the above description, it is to be realized that the optimum dimensional relationships for the parts of the invention, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent to one skilled in the art, and alI equivalent relationships to those illustrated in the drawings and described in the specification are intended to be 3o encompassed by the present invention.
Claims (43)
1. A pad assembly for use in a protective helmet shell, said pad assembly being formed from a shock absorbing material and comprising a front pad assembly, a back pad assembly, and an intermediate pad assembly centrally positionable between said front pad assembly and said back pad assembly, and wherein said intermediate pad is slidably connectable to said front pad assembly and to said back pad assembly.
2. A pad assembly for use in a protective helmet shell according to claim 1, wherein said intermediate pad assembly is slidably connectable to said front pad assembly and to said back pad assembly by interlocking tongue means.
3. A pad assembly for use in a protective helmet shell according to claim 1 wherein said front pad assembly comprises front attachment means adapted to attach said front pad assembly to a front portion of the helmet shell and wherein said back pad assembly comprises back attachment means adapted to attach said back pad assembly to a back portion of the helmet shell.
4. A pad assembly for use in a protective helmet shell according to claim 3, wherein said front and back attachment means are embedded in said pad assembly.
5. A pad assembly for use in a protective helmet shell according to any one of claims 1 to 4, wherein said intermediate pad assembly is tapered along a front portion thereof to create a recessed area.
6. A pad assembly for use in a protective helmet shell according to any one of claims 1 to 5, wherein said intermediate pad assembly is tapered along a rear portion thereof to create a recessed area.
7. A pad assembly for use in a protective helmet shell according to claim 5 or 6, wherein said intermediate pad assembly is capable of overlapping either said front pad assembly and said back pad assembly in said recessed areas.
8. A pad assembly for use in a protective helmet shell according to any one of claims 2 to 7, wherein said interlocking tongue means is planar.
9. A pad assembly for use in a protective helmet shell according to any one of claims 2 to 8 wherein said tongue means protrudes from both a front portion and a rear portion of said intermediate pad assembly and has a length sufficient to overlap a portion of said front pad assembly and said back pad assembly.
10. A pad assembly for use in a protective helmet shell according to any one of claims 2 to 9, wherein said interlocking tongue means comprise a plurality of planar or cylindrical protrusions.
11. A pad assembly for use in a protective helmet shell according to any one of claims 1 to 10, wherein one of said front pad assembly, rear pad assembly and intermediate pad assembly comprises a first inner liner and a second soft liner secured to an inner portion of said first inner liner.
12. A pad assembly for use in a protective helmet shell according to any one of claims 1 to 10, wherein said front, rear and intermediate pad assemblies comprise respective front, rear and intermediate inner liners and wherein the density of said intermediate inner liner is higher than the one of said front and rear inner liners.
13. A pad assembly for use in a protective helmet shell according to any one of claims 1 to 12, wherein either one of said front pad assembly, rear pad assembly and intermediate pad assembly comprises a ventilation channel to allow air to circulate within the helmet.
14. A pad assembly for use in a protective helmet shell according to claim 3 or 4, wherein each of said front and back attachment means comprises a fastener.
15. A protective helmet comprising an outer rigid helmet shell shaped to protect top, rear, front and sides regions of a head of a wearer and a pad assembly according to any one of claims 1 to 14.
16. A protective helmet according to claim 15, wherein said front pad assembly is attached to a front portion of said helmet shell and back pad assembly is attached to a back portion of said helmet shell.
17. A protective helmet according to claim 15 or 16, wherein said front, intermediate and back pad assemblies cover substantially the entire inner surface of said helmet shell.
18. A protective helmet according to any one of claims 15 to 17, wherein said tongue means is intermediate at least a portion of said front pad assembly and said helmet shell and intermediate at least a portion of said back pad assembly and said helmet shell.
19. A protective helmet comprising a pad assembly and a protective helmet shell, said protective helmet shell comprising a front portion and a back portion, said pad assembly being formed of shock-absorbing material and comprising a front pad assembly secured to said front portion, a back pad assembly secured to said back portion, an unsecured intermediate pad assembly centrally positioned between said front pad assembly and said back pad assembly, and means for slidably connecting said intermediate pad assembly to said front pad assembly and to said back pad assembly.
20. The protective helmet as defined in claim 19, wherein said helmet shell comprises a ventilation aperture and wherein at least one of said front pad assembly, said rear pad assembly, and said intermediate pad assembly comprises a ventilation channel cooperating with said ventilation aperture of said helmet shell to allow air to circulate within said helmet shell.
21. The protective helmet as defined in claim 19 or 20 wherein said intermediate pad assembly comprises an interlocking tongue and wherein said intermediate pad assembly is slidably connected to said front pad assembly and to said back pad assembly by said interlocking tongue.
22. The protective helmet as defined in claim 21 wherein said interlocking tongue is planar.
23. The protective helmet as defined in claim 22 wherein said interlocking tongue extends from both ends of said intermediate pad assembly.
24. The protective helmet as defined in any one of claims 21 to 23 wherein said front pad assembly and said back pad assembly each comprises a channel and wherein said interlocking tongue is adapted to be inserted into said channel.
25. The protective helmet as defined in any one of claims 21 to 24 wherein said intermediate pad assembly comprises a tapered front portion creating a recessed area adapted to permit an overlap between said intermediate pad assembly and said front pad assembly.
26. The protective helmet as defined in any one of claims 21 to 25 wherein said front, rear and intermediate pad assemblies comprise respective front, rear and intermediate inner liners and wherein the density of said intermediate inner liner is higher than the one of said front and rear inner liners.
27. A pad assembly for use in a protective helmet shell, said pad assembly being formed of shock-absorbing material and comprising a front pad assembly, a back pad assembly, an intermediate pad assembly centrally positioned between said front pad assembly and said back pad assembly, and an interlocking tongue, said intermediate pad assembly being slidably connected to said front pad assembly and to said back pad assembly by said interlocking tongue, wherein said intermediate pad assembly comprises a front portion and a rear portion, and said interlocking tongue protrudes from both said front portion and said rear portion of said intermediate pad assembly and has a length sufficient to partially overlap said front pad assembly and said back pad assembly.
28. The pad assembly for use in a protective helmet shell as defined in claim 27, wherein said intermediate pad assembly comprises a tapered front portion creating a recessed area adapted to permit an overlap between said intermediate pad assembly and said front pad assembly.
29. The pad assembly for use in a protective helmet shell as defined in claim 27 or 28, wherein said intermediate pad assembly comprises a tapered rear portion creating a recessed area adapted to permit an overlap between said intermediate pad assembly and said rear pad assembly.
30. The pad assembly for use in a protective helmet shell as defined in any one of claims 27 to 29, wherein at least one of said front pad assembly, said back pad assembly, and said intermediate pad assembly comprises an inner liner.
31. The pad assembly for use in a protective helmet shell as defined in any one of claims 27 to 29, wherein said front, rear and intermediate pad assemblies comprise respective front, rear and intermediate inner liners and wherein the density of said intermediate inner liner is higher than the one of said front and rear inner liners.
32. A protective helmet comprising:
(a) an outer rigid helmet shell comprising a front portion, a back portion and an inner surface and being shaped to protect top, rear, front and side regions of the head of a wearer; and (b) a pad assembly disposed in said helmet shell, said pad assembly being formed of a shock-absorbing material and comprising a front pad assembly secured to said front portion, a back pad assembly secured to said back portion, and a loose intermediate pad assembly centrally positioned between said front pad assembly and said back pad assembly, and wherein said intermediate pad assembly is slidably connected to said front pad assembly and to said back pad assembly.
(a) an outer rigid helmet shell comprising a front portion, a back portion and an inner surface and being shaped to protect top, rear, front and side regions of the head of a wearer; and (b) a pad assembly disposed in said helmet shell, said pad assembly being formed of a shock-absorbing material and comprising a front pad assembly secured to said front portion, a back pad assembly secured to said back portion, and a loose intermediate pad assembly centrally positioned between said front pad assembly and said back pad assembly, and wherein said intermediate pad assembly is slidably connected to said front pad assembly and to said back pad assembly.
33. The protective helmet as defined in claim 32, wherein said front, intermediate, and back pad assemblies cover said inner surface of said helmet shell.
34. The protective helmet as defined in claim 32 or 33 wherein said intermediate pad assembly comprises an interlocking tongue and wherein said intermediate pad assembly is slidably connected to said front pad assembly and said to back pad assembly by said interlocking tongue.
35. The protective helmet as defined in claim 34, wherein said intermediate pad assembly comprises a front portion and a rear portion, and said interlocking tongue protrudes from both said front portion and said rear portion of said intermediate pad assembly and has a length sufficient to partially overlap said front pad assembly and said back pad assembly.
36. The protective helmet as defined in claim 34 or 35 wherein said interlocking tongue is planar.
37. The protective helmet as defined in any one of claims 34 to 36 wherein said interlocking tongue extends from both ends of said intermediate pad assembly.
38. The protective helmet as defined in any one of claims 34 to 37 wherein said front and back pad assembly each comprises a channel and wherein said interlocking tongue is adapted to be inserted into said channel.
39. The protective helmet as defined in any one of claims 34 to 38 wherein said intermediate pad assembly comprises a tapered front portion creating a recessed area adapted to permit an overlap between said intermediate pad assembly and said front pad assembly.
40. The protective helmet as defined in claim 39 wherein said front, rear and intermediate pad assemblies comprise respective front, rear and intermediate inner liners and wherein the density of said intermediate inner liner is higher than the one of said front and rear inner liners.
41. A protective helmet comprising:
(a) an outer rigid helmet shell comprising a front portion, a back portion, and an inner surface and being shaped to protect top, rear, front, and side regions of the head of a wearer; and (b) a pad assembly disposed in said helmet shell, said pad assembly being formed of a shock-absorbing material and comprising a front pad assembly, a back pad assembly, an intermediate pad assembly centrally positioned between said front pad assembly and said back pad assembly, and an interlocking tongue and wherein said intermediate pad assembly is slidably connected to said front pad assembly and to said back pad assembly by said interlocking tongue.
(a) an outer rigid helmet shell comprising a front portion, a back portion, and an inner surface and being shaped to protect top, rear, front, and side regions of the head of a wearer; and (b) a pad assembly disposed in said helmet shell, said pad assembly being formed of a shock-absorbing material and comprising a front pad assembly, a back pad assembly, an intermediate pad assembly centrally positioned between said front pad assembly and said back pad assembly, and an interlocking tongue and wherein said intermediate pad assembly is slidably connected to said front pad assembly and to said back pad assembly by said interlocking tongue.
42. A hockey helmet comprising (a) an outer rigid helmet shell comprising a front portion, a back portion, and an inner surface and being shaped to protect top, rear, front, and side regions of the head of a wearer; and (b) a pad assembly disposed in said helmet shell, said pad assembly being formed of a shock-absorbing material and comprising a front pad assembly, a back pad assembly, an intermediate pad assembly centrally positioned between said front pad assembly and said back pad assembly, a front interlocking tongue extending from a front portion of said intermediate pad assembly, and a rear interlocking tongue extending from a rear portion of said intermediate pad assembly, and wherein said intermediate pad assembly is slidably connected to said front pad assembly and to said back pad assembly by said respective front and rear interlocking tongues.
43. A protective helmet as defined in claim 42 wherein said front and rear pad assemblies comprise respective front and rear channels and wherein said front and rear interlocking tongues are adapted to be inserted into said respective front and rear channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002263384A CA2263384C (en) | 1996-11-29 | 1997-11-26 | Hockey helmet with self-adjusting padding |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2191694 CA2191694A1 (en) | 1996-11-29 | 1996-11-29 | Hockey helmet with self-adjusting padding |
| CA2,191,678 | 1996-11-29 | ||
| CA2,191,694 | 1996-11-29 | ||
| CA 2191678 CA2191678A1 (en) | 1996-11-29 | 1996-11-29 | Protective helmet with improved liner |
| CA002263384A CA2263384C (en) | 1996-11-29 | 1997-11-26 | Hockey helmet with self-adjusting padding |
| PCT/CA1997/000905 WO1998023174A1 (en) | 1996-11-29 | 1997-11-26 | Hockey helmet with self-adjusting padding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2263384A1 CA2263384A1 (en) | 1998-06-04 |
| CA2263384C true CA2263384C (en) | 2006-06-06 |
Family
ID=29587262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002263384A Expired - Lifetime CA2263384C (en) | 1996-11-29 | 1997-11-26 | Hockey helmet with self-adjusting padding |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2263384C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7958573B2 (en) * | 2006-01-19 | 2011-06-14 | Gentex Corporation | Size adjustable safety and comfort liner for a helmet |
| US9226539B2 (en) | 2010-07-13 | 2016-01-05 | Sport Maska Inc. | Helmet with rigid shell and adjustable liner |
| US10278447B2 (en) | 2016-03-10 | 2019-05-07 | Sport Maska Inc. | Adjustable helmet with side protective members |
| US11470907B2 (en) | 2016-03-10 | 2022-10-18 | Sport Maska Inc. | Adjustable helmet with side protective members |
| US11849793B2 (en) * | 2019-03-29 | 2023-12-26 | Bell Sports, Inc. | Flexible slip plane for helmet energy management liner |
-
1997
- 1997-11-26 CA CA002263384A patent/CA2263384C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2263384A1 (en) | 1998-06-04 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20171127 |