CA1042151A - Crown suspension for protective helmet - Google Patents
Crown suspension for protective helmetInfo
- Publication number
- CA1042151A CA1042151A CA282,903A CA282903A CA1042151A CA 1042151 A CA1042151 A CA 1042151A CA 282903 A CA282903 A CA 282903A CA 1042151 A CA1042151 A CA 1042151A
- Authority
- CA
- Canada
- Prior art keywords
- legs
- suspension
- shell
- head
- crown
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/04—Parts, details or accessories of helmets
- A42B3/10—Linings
- A42B3/14—Suspension devices
Landscapes
- Helmets And Other Head Coverings (AREA)
Abstract
ABSTRACT
The crown suspension consists of upper and lower dome-shaped elements each having a central portion and radially extending legs. The legs of the upper element are connected to the shell and means is provided for adjusting the position of the legs of the lower element relative to the upper element legs to enable the lower element to be fitted to various sized heads.
The crown suspension consists of upper and lower dome-shaped elements each having a central portion and radially extending legs. The legs of the upper element are connected to the shell and means is provided for adjusting the position of the legs of the lower element relative to the upper element legs to enable the lower element to be fitted to various sized heads.
Description
i042~S~
This invention relates generally to protective hats and more particularly to a novel suspension means or liner for use - with helmets. Specifically, the invention is concerned with a suspension means suitable for use with protective helmets and which includes a head suspension and a crown suspension both of which may be adjusted whereby the suspension means will fit a wide range of head sizes.
Suspension or liners for use with protective helmets usually are composed of two basic parts. One part is generally referred to as the "head suspension" and extends horizontally around the wearer's head at approximately the level of an ordinary hat band. The head suspension serves principally to cushion gener-ally horizontally directed blows on the outer shell of the helmet.
The other part is generally referred to as the "crown suspension"
and extends over the top of the wearer's head. The latter suspen-sion serves to cushion blows directed generally downwardly against the shell.
Head suspensions of known protective helmets such as are shown in U.S. patent No. 2,969,546 to Morgan consist of a pair of relatively inelastic horizontally extending straps which orm a rigid "framework" in the space between the wearer's head ahd the shell. One of the straps is riveted at spaced intervals along its length to the inside of the sx~ell so that it forms a number, usually six or more, of tightly stretched chordal segments extending between adjacent rivets. Another strap is located inside the outer strap ant is sewn thereto at points intermediate each adjacent pair of rivets so that it likewise forms an equal number of tightly stretch-ed chortal segments extending between adjacent points of the chordal segments of the outer strap. The inner strap fits around the wearer's head in approximately the position occupied by the band lO~Z15~
of a conventional hat.
The length of the inner strap determines the head size of the head suspension. In order to permit adjustment of the head suspension to heads of various sizes, there must be provision for lengthening and shortening of the inner strap. It is not enough however simply to provide in one of the chordal segments an adjusting means such as is found in the conventional belt worn around one's person. This is so because the inner strap is sewn to the cuter strap at various points along its length. The adjust-ing means will permit changes in the effective length only of theone chordal ægment. The effective length of the remaining chordal segments which make up by far the larger portion of the inne~ strap - length will remain the same. As a result, the provision of such adjusting means only permits fitting the head suspension to a very limited range of head sizes.
It may be thought that the problem discussed above can be avoided by attaching the inner and outer straps by loops instead of by sewing so that the inner strap is slideably held to the out-, er strap. By attaching the straps by this means the effective length of the entire inner strap may be adjusted by the me,ans men-tioned before and the strap will accommodate a much larger range of head sizes. However, attachment of the straps by this means - is not satisfactory because the inner strap will deform when a blow is directed horizonta'ly on the helmet. 'It is essential that the inner strap remain in the form of tightly stretched chordal elementsif it is to be effective in cushioning the head ` against such blows.
Alternatively to attaching the inner and outer straps by loops, an adjusting means such as described before may be provided ' 30 in every chordal segment of the inner strap. If such is done in known helmets such as that shown in the aforementioned U.S. patent, .
~- ` . ' .
10421S~
- six or more C~uch ndjustin~ meanC ~ be required. It is a tedious and time-consuming chore to vary all six such means to a new head si7e.
It is a principal object of the present invention to provide a helmet suspension means having a head suspension which A~ effectively absorbs impacts or blows impinging on the helmet and which may be readily adjusted to fit a wide range of head sizes.
It is another object to provide a one piece head S~?S-pension which may be readily molded from plastic or like moldable ) , 10 material and which may be fitted into a protective shell with a -' minimum of labour.
.
A further object is to provide a helmet suspension means incorporating a novel crown suspension which also is effective to absorb impacts and which also may be readily adjusted.
The head suspension which satisfies the objects is for use within a protective helmet having a shell adapted to encircle ~ -a wearer's head and in spaced relationship thereto, said head ,~ suspension including: a one-piece outer strap composed of a :, ;. plurality of loops and links, said loops being disposed circum-ferentially in side by side relationship, successive said loops being connected by a respective said link, said loops adapted to be secured at positions along the inside of the shell in such manner that said loops and links are tightly stretched and such that said links and a portion of said loops define a continuous band which is spaced apart from said shell and which encircles the wearer's head at approximately the level with respect to the wearer's head of a normal hat band, said head suspension further including an inner strap connected to said outer strap and adapted to contact the wearer's head at least in part at said ~ ' level, and means for adjusting the effective length of said inner strap to increase or decrease the size thereof. ~ -,,;.
~ ~ 3 ~
~ Jl'`
''~`i :
.~
104ZlSl l'he crown suspension which satisries the foregoing objects is also ror use within a protective helrnet having a - shell adapted to encircle a wearer's head and in spaced rela-tionship thereto, said crown suspension con.sisting o~ upper and lower dome-shaped elements each having a central portion and radially outwardly extending legs, the legs of the upper element :~ extending to and adapted to be secured to said shell, the legs of the lower element extending along and in contact with said upper element legs but terminating short of said shell, means for adjusting the location of the lower element legs relative to the upper element legs to enable the lower element to be fitted to various sized heads.
The invention will be more fully explained with reference to the drawings in which: "~;t,, a' Figure 1 is an elevation, partly in section, of the suspension means of the invention incorporated :
~ in a shell;
,~ Figure 2 is a view on line 2-2 of Figure l; -~
Figure 3 is an enlarged fragmentary view on line 3-3 of Figure l; and Figure 4 is an elevation of the suspension means and helmet.
. Like reference characters refer to like parts through-out the description of the drawings.
3 Referring to Figure 1, the helmet illustrated is of con-ventional design having a semi-rigid resinous shell 10 and a sus-pension means, generally 12 to position the shell on a wearer's head in such fashion that it is maintained in spaced relationship _ 4 _ , ,~ .
'A
~i ~ ;
.,~ .
~0 4 2 15 ~
- with the head to absorb the shock of blows imparted to,the ~ external surface of the shell.
,, The suspension means is composed of a horizontal head-,' encircling head suspension generally 14 and a crown suspension generally ~ . The components of both suspensions are composed of tough resilient fabric or polymeric material such as poly-~, ethylene or rubber. Preferably, the suspension means is of one-'~ pi'ece molded plastic construction. With reference first to the , r~r head suspension 14 and to Figure 4, this suspension includes an r 10 outer strap composed of a plurality of outer loop segments 16 which ~ are spaced apart from one another,along the inside wall of the '- shell. Successive loops are interconnected by means of links 18 ' which together with the innermost portions or reaches 16a of each ,-~ loop define a smooth continuous' band, generally 20 which extends ~ circumferentially within the shell. By means of the loops,:the ~
,~ outer band 20 is held rigidly in position in the shell. A contin- -...
uous inner band or strap 22 extends circumferentially within outer ,'-~ band 20 except for a portion 20a thereof which is coextensive with ~A
band 20.
20 - The inner band 22 is composed of a first elongated segment ' 22a adapted in use to extend between the two temporal bones or ' thereabouts and across the forehead or frontal bone of the wearer.
A secont segment 22b overlaps one end of the first segment 22a and ' oxtends generally horizontally then diagonally downwardly as at 2i , (Figuro 3) to contact the base of the occipital bone. The latter ; sogmont terminates at a point approximately at the rear of tho ~ woarer's heat. A thirt segment 22c overlaps the end of tho secondr'. segment and extends to overlap the other end of the first segment 22a. The three segments which make up the inner band 22 thus form . 30 a continuous ring adaptot to contact and to oncirclo the w-arer's ,,,.~ .
~ 5 _ ~
,,0~ . ~
' head. ~04ZlSl The second and third inner band segments 22b, 22c are attached to ~e outer band 20 by means of links 26, 28.
With reference to Figure 3, the overlapping end portions of band segments 22b, 22c are provided with an adjustment means, generally 32 which permits the selective lengthening and shorten-ing of the distance, measured along these band segments, between the points of attachment of these segments with links 26, 28. The adjustment means is composed of a plurality of rows of spaced apertures 34 formed in the overlapping end portion of band segment 22b. The overlapping end portion of band segment 22c is provided with spaced outwardly projecting studs 36 (Figure 1). The spacing of the studs corresponds to the spacing of the apertures so that - by moving the end portions of the two band segments relative to ^ one another, the studs are brought into registry with selective apertures 34 along the length of the end portion of band segment 22b. The head size with which the various apertures correspond is marked ~ band segment 22b as at 37.
Each of the studs 36 is provided with an enlarged head which is slightly larger than apertures 34. Because the material from which the band is fabricated is resilient and flexible, the enlarged heads can be easily forced through the apertures 34 but at the same time the material is sufficiently resilient so as to i maintain the connection until it is desired to separate the two end portions as by pulling them apart. Extending along each side edge of the end p~rtion of band segment 22c is an overhanging guide 38a, 38b which serve to maintain the two end portions of segments 22b, 22c in slideable contact with one another.
~ The~overlapping ends of band segments 22a, 22b and segments -~ 30 22a, 22c are also provided with adjustment means generally 44, 46 ., .
.~ .
~. ~
: ' ~
:
lV4ZlSl respcctively of the same construction as that of adjustment means 32. Adjust~ent means 44 pcrmits variation of the distance, measured along band segments 22a, 22c, between the point of attachment of segment 22c with link 26 and the point of attachment of segment 22a with the outer band 20. Adjustment means 46 permits a like variation in the distance measured along segments 22a, 22b.
With reference again to Figures 1 and 2, the outer loop segments 16 are connected to the shell by means of metallic or plastic rivets 48. Rivets 48 also serve to attach the ends of the crown portion 16 to the shell in the manner explained below.
The crown suspension 15 is composed of upper and lower dome-shaped elements 50, 52 respectively, both of which having slitted central portions as shown in Figure 4 and indicated 53, and legs 54, 56 respectiuely which radiate outwardly from the cen-tral portions. Legs 54 terminate at the shell and are connected thereto by means of rivets 48 while legs 56 terminate short of the shell. Legs 54, 56 are provided with an adjustment means generally 58 (Figure 1) of the same construction as adjustment means 32 to - permit adjustment of the curvature of the lower element 52 to accommodate various head sizes. As shown the adjustment means is composed of a plurality of rows of spaced apertures 60 formed in each leg 54 for receipt of upwardly extending studs 62 formed in each leg 56. Asseen the stud heads are enlarged to maintain the connection until it is desired to separate the upper and lower elements 50, 52.
It will be understood of course that modifications can be made in the embodiments described and illustrated herein without departing from the scope and purview of the appended claims.
. ' .
:
., .
This invention relates generally to protective hats and more particularly to a novel suspension means or liner for use - with helmets. Specifically, the invention is concerned with a suspension means suitable for use with protective helmets and which includes a head suspension and a crown suspension both of which may be adjusted whereby the suspension means will fit a wide range of head sizes.
Suspension or liners for use with protective helmets usually are composed of two basic parts. One part is generally referred to as the "head suspension" and extends horizontally around the wearer's head at approximately the level of an ordinary hat band. The head suspension serves principally to cushion gener-ally horizontally directed blows on the outer shell of the helmet.
The other part is generally referred to as the "crown suspension"
and extends over the top of the wearer's head. The latter suspen-sion serves to cushion blows directed generally downwardly against the shell.
Head suspensions of known protective helmets such as are shown in U.S. patent No. 2,969,546 to Morgan consist of a pair of relatively inelastic horizontally extending straps which orm a rigid "framework" in the space between the wearer's head ahd the shell. One of the straps is riveted at spaced intervals along its length to the inside of the sx~ell so that it forms a number, usually six or more, of tightly stretched chordal segments extending between adjacent rivets. Another strap is located inside the outer strap ant is sewn thereto at points intermediate each adjacent pair of rivets so that it likewise forms an equal number of tightly stretch-ed chortal segments extending between adjacent points of the chordal segments of the outer strap. The inner strap fits around the wearer's head in approximately the position occupied by the band lO~Z15~
of a conventional hat.
The length of the inner strap determines the head size of the head suspension. In order to permit adjustment of the head suspension to heads of various sizes, there must be provision for lengthening and shortening of the inner strap. It is not enough however simply to provide in one of the chordal segments an adjusting means such as is found in the conventional belt worn around one's person. This is so because the inner strap is sewn to the cuter strap at various points along its length. The adjust-ing means will permit changes in the effective length only of theone chordal ægment. The effective length of the remaining chordal segments which make up by far the larger portion of the inne~ strap - length will remain the same. As a result, the provision of such adjusting means only permits fitting the head suspension to a very limited range of head sizes.
It may be thought that the problem discussed above can be avoided by attaching the inner and outer straps by loops instead of by sewing so that the inner strap is slideably held to the out-, er strap. By attaching the straps by this means the effective length of the entire inner strap may be adjusted by the me,ans men-tioned before and the strap will accommodate a much larger range of head sizes. However, attachment of the straps by this means - is not satisfactory because the inner strap will deform when a blow is directed horizonta'ly on the helmet. 'It is essential that the inner strap remain in the form of tightly stretched chordal elementsif it is to be effective in cushioning the head ` against such blows.
Alternatively to attaching the inner and outer straps by loops, an adjusting means such as described before may be provided ' 30 in every chordal segment of the inner strap. If such is done in known helmets such as that shown in the aforementioned U.S. patent, .
~- ` . ' .
10421S~
- six or more C~uch ndjustin~ meanC ~ be required. It is a tedious and time-consuming chore to vary all six such means to a new head si7e.
It is a principal object of the present invention to provide a helmet suspension means having a head suspension which A~ effectively absorbs impacts or blows impinging on the helmet and which may be readily adjusted to fit a wide range of head sizes.
It is another object to provide a one piece head S~?S-pension which may be readily molded from plastic or like moldable ) , 10 material and which may be fitted into a protective shell with a -' minimum of labour.
.
A further object is to provide a helmet suspension means incorporating a novel crown suspension which also is effective to absorb impacts and which also may be readily adjusted.
The head suspension which satisfies the objects is for use within a protective helmet having a shell adapted to encircle ~ -a wearer's head and in spaced relationship thereto, said head ,~ suspension including: a one-piece outer strap composed of a :, ;. plurality of loops and links, said loops being disposed circum-ferentially in side by side relationship, successive said loops being connected by a respective said link, said loops adapted to be secured at positions along the inside of the shell in such manner that said loops and links are tightly stretched and such that said links and a portion of said loops define a continuous band which is spaced apart from said shell and which encircles the wearer's head at approximately the level with respect to the wearer's head of a normal hat band, said head suspension further including an inner strap connected to said outer strap and adapted to contact the wearer's head at least in part at said ~ ' level, and means for adjusting the effective length of said inner strap to increase or decrease the size thereof. ~ -,,;.
~ ~ 3 ~
~ Jl'`
''~`i :
.~
104ZlSl l'he crown suspension which satisries the foregoing objects is also ror use within a protective helrnet having a - shell adapted to encircle a wearer's head and in spaced rela-tionship thereto, said crown suspension con.sisting o~ upper and lower dome-shaped elements each having a central portion and radially outwardly extending legs, the legs of the upper element :~ extending to and adapted to be secured to said shell, the legs of the lower element extending along and in contact with said upper element legs but terminating short of said shell, means for adjusting the location of the lower element legs relative to the upper element legs to enable the lower element to be fitted to various sized heads.
The invention will be more fully explained with reference to the drawings in which: "~;t,, a' Figure 1 is an elevation, partly in section, of the suspension means of the invention incorporated :
~ in a shell;
,~ Figure 2 is a view on line 2-2 of Figure l; -~
Figure 3 is an enlarged fragmentary view on line 3-3 of Figure l; and Figure 4 is an elevation of the suspension means and helmet.
. Like reference characters refer to like parts through-out the description of the drawings.
3 Referring to Figure 1, the helmet illustrated is of con-ventional design having a semi-rigid resinous shell 10 and a sus-pension means, generally 12 to position the shell on a wearer's head in such fashion that it is maintained in spaced relationship _ 4 _ , ,~ .
'A
~i ~ ;
.,~ .
~0 4 2 15 ~
- with the head to absorb the shock of blows imparted to,the ~ external surface of the shell.
,, The suspension means is composed of a horizontal head-,' encircling head suspension generally 14 and a crown suspension generally ~ . The components of both suspensions are composed of tough resilient fabric or polymeric material such as poly-~, ethylene or rubber. Preferably, the suspension means is of one-'~ pi'ece molded plastic construction. With reference first to the , r~r head suspension 14 and to Figure 4, this suspension includes an r 10 outer strap composed of a plurality of outer loop segments 16 which ~ are spaced apart from one another,along the inside wall of the '- shell. Successive loops are interconnected by means of links 18 ' which together with the innermost portions or reaches 16a of each ,-~ loop define a smooth continuous' band, generally 20 which extends ~ circumferentially within the shell. By means of the loops,:the ~
,~ outer band 20 is held rigidly in position in the shell. A contin- -...
uous inner band or strap 22 extends circumferentially within outer ,'-~ band 20 except for a portion 20a thereof which is coextensive with ~A
band 20.
20 - The inner band 22 is composed of a first elongated segment ' 22a adapted in use to extend between the two temporal bones or ' thereabouts and across the forehead or frontal bone of the wearer.
A secont segment 22b overlaps one end of the first segment 22a and ' oxtends generally horizontally then diagonally downwardly as at 2i , (Figuro 3) to contact the base of the occipital bone. The latter ; sogmont terminates at a point approximately at the rear of tho ~ woarer's heat. A thirt segment 22c overlaps the end of tho secondr'. segment and extends to overlap the other end of the first segment 22a. The three segments which make up the inner band 22 thus form . 30 a continuous ring adaptot to contact and to oncirclo the w-arer's ,,,.~ .
~ 5 _ ~
,,0~ . ~
' head. ~04ZlSl The second and third inner band segments 22b, 22c are attached to ~e outer band 20 by means of links 26, 28.
With reference to Figure 3, the overlapping end portions of band segments 22b, 22c are provided with an adjustment means, generally 32 which permits the selective lengthening and shorten-ing of the distance, measured along these band segments, between the points of attachment of these segments with links 26, 28. The adjustment means is composed of a plurality of rows of spaced apertures 34 formed in the overlapping end portion of band segment 22b. The overlapping end portion of band segment 22c is provided with spaced outwardly projecting studs 36 (Figure 1). The spacing of the studs corresponds to the spacing of the apertures so that - by moving the end portions of the two band segments relative to ^ one another, the studs are brought into registry with selective apertures 34 along the length of the end portion of band segment 22b. The head size with which the various apertures correspond is marked ~ band segment 22b as at 37.
Each of the studs 36 is provided with an enlarged head which is slightly larger than apertures 34. Because the material from which the band is fabricated is resilient and flexible, the enlarged heads can be easily forced through the apertures 34 but at the same time the material is sufficiently resilient so as to i maintain the connection until it is desired to separate the two end portions as by pulling them apart. Extending along each side edge of the end p~rtion of band segment 22c is an overhanging guide 38a, 38b which serve to maintain the two end portions of segments 22b, 22c in slideable contact with one another.
~ The~overlapping ends of band segments 22a, 22b and segments -~ 30 22a, 22c are also provided with adjustment means generally 44, 46 ., .
.~ .
~. ~
: ' ~
:
lV4ZlSl respcctively of the same construction as that of adjustment means 32. Adjust~ent means 44 pcrmits variation of the distance, measured along band segments 22a, 22c, between the point of attachment of segment 22c with link 26 and the point of attachment of segment 22a with the outer band 20. Adjustment means 46 permits a like variation in the distance measured along segments 22a, 22b.
With reference again to Figures 1 and 2, the outer loop segments 16 are connected to the shell by means of metallic or plastic rivets 48. Rivets 48 also serve to attach the ends of the crown portion 16 to the shell in the manner explained below.
The crown suspension 15 is composed of upper and lower dome-shaped elements 50, 52 respectively, both of which having slitted central portions as shown in Figure 4 and indicated 53, and legs 54, 56 respectiuely which radiate outwardly from the cen-tral portions. Legs 54 terminate at the shell and are connected thereto by means of rivets 48 while legs 56 terminate short of the shell. Legs 54, 56 are provided with an adjustment means generally 58 (Figure 1) of the same construction as adjustment means 32 to - permit adjustment of the curvature of the lower element 52 to accommodate various head sizes. As shown the adjustment means is composed of a plurality of rows of spaced apertures 60 formed in each leg 54 for receipt of upwardly extending studs 62 formed in each leg 56. Asseen the stud heads are enlarged to maintain the connection until it is desired to separate the upper and lower elements 50, 52.
It will be understood of course that modifications can be made in the embodiments described and illustrated herein without departing from the scope and purview of the appended claims.
. ' .
:
., .
Claims (3)
1. A crown suspension for use within a protective helmet having a shell adapted to encircle a wearer's head and in spaced relationship thereto, said crown suspension consisting of upper and lower dome-shaped elements each consisting of a one-piece member having a central portion and radially outwardly ex-tending legs integral with said central portion, the legs of the upper element extending to and adapted to be secured to said shell, the legs of the lower element extending along and in contact with said upper element legs but terminating short of said shell, means for removably connecting each of said lower element legs to a respective said upper element leg, said connecting means being the one and only means by which said lower and upper element legs are interconnected and having means for adjusting the location of the connection between said lower and upper element legs to enable the lower element to be fitted to various sized heads
2. The crown suspension as claimed in claim 1 wherein said connecting means for said dome-shaped elements comprises a plurality of apertures formed in a respective one of each of said upper and lower element legs and outwardly extending studs formed in the other of said upper and lower element legs, said studs being releasably engageable in selective said apertures.
3. The crown suspension as claimed in claim 1 wherein said upper and lower dome-shaped elements each have at least six legs, each said leg of each said element being spaced equidistantly from adjacent legs of the same element on opposite sides thereof.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA171,686A CA1019101A (en) | 1973-05-17 | 1973-05-17 | Head and crown suspension for protective helmet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1042151A true CA1042151A (en) | 1978-11-14 |
Family
ID=4096758
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA171,686A Expired CA1019101A (en) | 1973-05-17 | 1973-05-17 | Head and crown suspension for protective helmet |
| CA282,903A Expired CA1042151A (en) | 1973-05-17 | 1977-07-18 | Crown suspension for protective helmet |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA171,686A Expired CA1019101A (en) | 1973-05-17 | 1973-05-17 | Head and crown suspension for protective helmet |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3878562A (en) |
| CA (2) | CA1019101A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1089601A (en) * | 1977-10-11 | 1980-11-18 | Charles C. T. Lamb | Fastener for helmet suspension |
| FR2573964B1 (en) * | 1984-12-03 | 1987-01-09 | Gallet Sa | SAFETY HELMET |
| CA2220631A1 (en) * | 1997-06-19 | 1998-12-19 | Normand Theoret | Safety cap with removable fabric cover |
| DE19730812C1 (en) * | 1997-07-18 | 1999-03-25 | Schuberth Werk Kg | Head band for military helmet |
| CA2573639C (en) * | 2004-07-14 | 2012-05-15 | Sport Maska Inc. | Adjustable helmet |
| ITTV20120001A1 (en) * | 2012-01-04 | 2013-07-05 | Alpinestars Res Srl | HELMET PROVIDED WITH A PADDING ADJUSTMENT DEVICE |
| US10588360B2 (en) * | 2014-04-11 | 2020-03-17 | John Dana Chase, JR. | Impact reduction apparel and impact absorbing liner for apparel |
| US20170251745A1 (en) * | 2016-03-01 | 2017-09-07 | Argul y Cia, S.A. | Impact absorbing harness for industrial safety helmet |
| US20190166944A1 (en) * | 2017-12-06 | 2019-06-06 | Titon Corp. | Mechanical shock abatement system incorporating sacrificial systems |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2763863A (en) * | 1954-06-30 | 1956-09-25 | Fibre Metal Prod Co | Head protector cradle attachment |
| US3619814A (en) * | 1969-12-11 | 1971-11-16 | Gentex Corp | Protective helmet with adjustable headband |
| US3609765A (en) * | 1969-12-17 | 1971-10-05 | American Safety Equip | Protective helmet head suspension |
| US3628190A (en) * | 1970-01-07 | 1971-12-21 | American Safety Equip | Helmet neckguard |
-
1973
- 1973-05-17 CA CA171,686A patent/CA1019101A/en not_active Expired
-
1974
- 1974-01-02 US US430297A patent/US3878562A/en not_active Expired - Lifetime
-
1977
- 1977-07-18 CA CA282,903A patent/CA1042151A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3878562A (en) | 1975-04-22 |
| CA1019101A (en) | 1977-10-18 |
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