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Publication numberUS3909846 A
Publication typeGrant
Publication dateOct 7, 1975
Filing dateMay 10, 1974
Priority dateMay 12, 1973
Also published asCA1002251A1
Publication numberUS 3909846 A, US 3909846A, US-A-3909846, US3909846 A, US3909846A
InventorsZahn Christian
Original AssigneeSchuberth Werk Kg
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Suspension for hard protective hat or the like
US 3909846 A
Abstract
A suspension for a hard protective hat has a crown piece adapted to overlie the wearer's head and a plurality of band arms extending outwardly from the crown piece and provided at their outer ends with respective attachment feet adapted to be secured to the hat. Two of the arms extending from the crown piece in opposite directions terminate short of the respective feet and are connected to these feet via respective connecting members each having one end attached to the outer end of the arm and another end attached to the respective foot and each including a ligature entending transverse to the respective arm. These ligatures are of smaller cross section than the arms so that even in very cold weather they are capable of deforming in the longitudinal direction of the arms and imparting resilience to the suspension. Curved stabilizing elements extend from each of the feet to the crown piece and are of smaller cross section than the arms so that these stabilizing arms are first pulled tight and straight before the arms are longitudinally loaded.
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Description  (OCR text may contain errors)

1 Get. 7, 11975 SUSPENSION FOR HARD PROTECTIVE HAT OR THE LIKE [75] Inventor: Christian Zahn,Braunschweig,

Germany [73] Assignee: Schuberth-Werk,Braunschweig,

Germany [22] Filed: May 10, 1974 [21] Appl. No.: 468,805

[30] Foreign Application Priority Data May 12, 1973 Germany 2324143 [52] US. Cl 2/3 R [51] Int. CI. A42B l/08 [58] Field of Search 2/3 R, 3 A, 3 B, 3 C, 5,

[56] References Cited I UNITED STATES PATENTS 2,946,063 7/1960 Boyer 2/3 R 3,026,523 3/1962 Bowers, Sr. et al.... 2/3 R 3,154,788 11/1964 Simpson 2/3 R 3,223,086 12/1965 Denton..... 2/3 A 3,268,911 8/1966 Cox 2/3 E 3,422,459 1/1969 Bowers, Jr. 2/3 R 1,023,268 3/1966 United Kingdom"; 2/3 R Primary Examiner-Alfred R. Guest Attorney, Agent, or Firml(arl F. Ross; Herbert Dubno [57] ABSTRACT A suspension for a hard protective hat has a crown piece adapted to overlie the wearers head and a plurality of band arms extending outwardly from the crown piece and provided at their outer ends with respective attachment feet adapted to be secured to the hat. Two of the arms extending from the crown piece in opposite directions terminate short of the respective feet and are connected to these feet via respective connecting members each having one end attached to the outer end of the arm and another end attached to the respective foot and each including a ligature entending transverse to the respective arm. These liga tures are of smaller cross section than the arms so that even in very cold weather they are capable of deforming in the longitudinal direction of the arms and imparting resilience to the suspension. Curved stabilizing elements extend from each of the feet to the crown piece and are of smaller cross section than the arms so that these stabilizing arms are first pulled tight and straight before the arms are longitudinally loaded.

7 Claims, 2 Drawing Figures USQPatent Oct. 7,1975 Sheet 1 of2 3,909,846

SUSIIENSION FOR HARD PROTECTIVE HAT OR THE LIKE FIELD OF THE INVENTION The present invention relates to a hard protective hat or helmet. More particularly this invention concerns a suspension for supporting such a protective hat on the wearers head.

BACKGROUND OF THE INVENTION As a rule a hard hat or the like comprises a ridged outer shell made of light metal or synthetic resin, a so called spider or suspension in the helmet, and a head band carried by the suspension which snugly surrounds the wearers head. The suspension comprises a central crown piece adapted to overlie the wearers head and a plurality of outwardly, and downwardly extending arms whose outer ends are secured in the hard shell of the hat adjacent the lower rim thereof. The head band is secured to the suspension at intermediate locations on the arms. Customarily the suspension is a simple flat piece of synthetic-resin formed generally in the shape of a star.

Such suspension holds the outer shell above the wearers head so that a blow to the shell will be partly absorbed by this suspension and otherwise transmitted evenly to the wearers head, so as to avoid the considerable injury that would often take place with a sharp concentrated blow. The principal disadvantage of such a system is that in cold climates, where the temperature drops to 19C, the suspension becomes extremely rigid so that it not only loses its ability to cushion a blow delivered to the shell, but is also quite uncomfortable for the wearer. In such situations recourse has been had to relatively expensive suspensions made of textile.

OBJECTS OF THE INVENTION It is therefore an object of the present invention to provide an improved suspension for a protective hat or the like.

Another object is the provision of such a suspension which remains elastic at extremely low temperatures and which is inexpensive to manufacture.

SUMMARY OF THE INVENTION These objects are attained according to the present invention in a suspension for a hard protective hat which comprises a crown piece adapted to overlie the wearers head, a plurality of band-like arms extending outwardly from the crown piece, an attachment foot connected to each of the arms and adapted to be se cured to the hat, and at least two connecting members each having one end attached to the outer end of a respective one of the two arms and the other end attached to the respective foot. The two arms provided with such connecting members terminate short of and form a gap with the respective feet. Each connecting member includes a strip portion or ligature which extends transverse to the respective arm and which is of smaller cross section than the respective arm.

In this arrangement the strip portions or ligatures even at a very low temperature is capable of flexing since it extends transverse to the longitudinal axis of the respective arm.

The entire suspension according to the present invention is integrally formed of a flexible synthctic-rcsin The feet are thickened portions at the ends ol'thc arms and are adapted to be received in corresponding recesses on the inside of the rim of the helmet shell.

According to yet another feature of this invention each of the arms is provided with at least one stabilizing strip of substantially smaller cross section than the respective arm and having one end secured to the crown piece and another end secured to the respective foot. Between these two ends the stabilizing strips each extend generally parallel to the respective arms but are not straight so that on longitudinal stressing and stretching of the respective arms the stabilizing strip is pulled into a straight condition before it also begins to accept longitudinal loading.

In accordance with another feature of this invention each of the feet includes a crosspiece extending perpendicularly to the respective arm and serving as one of the insertions of the respective stabilizing strip. This crosspiece is of smaller cross section than the respec tive arm so that it also has a spring function.

According to a further feature of the present invention a pair of such strip portions extends from the free ends of the two opposite arms to which they are connected at an angle to the respective arms. They are each connected to a respective stabilizing strip which in this case forms part of the connecting member.

BRIEF DESCRIPTION OF THE DRAWING The above and other objects, features, and advan tages will become more readily apparent from the following description, reference being made to the accompanying drawing in which:

FIG. I is a plan view of a suspension according to the present invention, and

FIG. 2 is a cross section through a protective hat provided with the suspension shown in FIG. I.

SPECIFIC DESCRIPTION As shown in FIG. I a suspension according to the present invention has a crown piece 1 adapted to overlie the wearer's head and provided with six outwardly extending arms including two side arms 2a and four end arms 2b. The arms 2a extend in opposite directions from the centerline A and the arms 2b extend from the centerline A at angles of 60.

Each of the arms 2a and 217 terminates at an attachment foot 3 comprising a thickened end piece 12. carried on a neck I3 from which extends a pair of transverse pieces 4.

Each of the arms 212 comprises a band-like element 14 of regular width W. Holes 6 formed in this band 14 allow a head band shown schematically at IS in FIG. 2 to be secured to the suspension. Stabilizing strips 5 extend from the outer ends of crosspieces 4 to the center piece I and have thickness w equal to approximately W/3.

The arms 2a each have a central band-like element 7 of width W and terminating just short of the crosspieces 4 of the feet 3 so as to form a gap 8. Short spring elements or ligatures 9 are connected between the end of the band 7 and the stabilizing elements 5 of these arms 2a. These strips 9 are arcuatc and of width w equal to approximately W/S. Moreover these ligaturcs 9 extend transversely to a cross line B perpendicular to the line A and acting as symmetry line for the elements Zn. The strips 9 furthermore extend back from the tip of the band 7 toward the centerline A and are concave toward thi line A.

The suspension shown in FIG. 1 is secured as shown in FIG. 2 in a hard shell formed with recesses ll adapted to receive the ends 12 of feet 3. it can be seen here that the arms 2a are slightly shorter than the arms 2b so that they bend the suspension along the line B over a larger radius of curvature than the legs 2b. Thus as a general rule the legs must be deformed before the legs 2b are pulled tight. In addition the stabilizing strips 5 are curved so that these elements also must be pulled straight before they can be stretched tight.

I claim:

1. A suspension for mounting a head band in a shell of a hard protective hat, said suspension comprising:

a crown piece adapted to overlie the wearers head;

a plurality of arms formed integrally with and extending outwardly from said crown piece;

respective attachment feet each provided at the outer end of a respective arm and adapted to be secured to said shell, at least two of said arms extending from said piece in opposite directions;

respective bands reaching outwardly from said crown piece along each arm of said two arms and having a free outer end spaced from the respective foot, said suspension being adapted to be attached to said head band; and

respective connecting members each having one end attached to the outer end of a respective one of said bands and another end attached to the respective foot, each of said members being formed at least partially as a flexible ligature extending transverse to and being of smaller cross section than the respective arm and band. 2. The suspension defined in claim 1, wherein said 5 crown piece, said arms, said attachment feet, and said connecting members are all integrally formed of a flexible synthetic resin.

3. The suspension defined in claim 2 wherein each of said feet includes a thickened foot piece and a crosspiece extending transversely to the respective arm.

4. The suspension defined in claim 3, further comprising respective pairs of stabilizing strips flanking said arms and each of substantially smaller cross section than the respective arms, said stabilizing strips each 15 having one end secured to the respective crosspiece and another end secured to said crown piece.

5. The suspension defined in claim 4 wherein said stabilizing strips are of areuate shape.

6. The suspension defined in claim 5 wherein said one ends of said stabilizing strips constitute part of said connecting members, said ligatures each extending between the respective said one end and the respective free end of the respective arm.

7. The suspension defined in claim 1 wherein another two of said arms have their free ends connected directly to the respective feet, said other two arms being of greater length between said crown piece and the respective feet than the first-mentioned two arms.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2946063 *Apr 28, 1959Jul 26, 1960Electric Storage Battery CoMolded suspension for safety hat
US3026523 *Dec 8, 1959Mar 27, 1962Fibre Metal Products CompanySuspension harness for safety hats
US3154788 *Jan 14, 1963Nov 3, 1964Electric Storage Battery CoSafety hat adjustable suspension
US3223086 *Aug 5, 1963Dec 14, 1965Arthur R AdamsAir-conditioned helmet
US3268911 *Sep 29, 1964Aug 30, 1966Cox Wilma WCombination hat and ventilated protective shell
US3422459 *Dec 9, 1966Jan 21, 1969Fibre Metal Prod CoProtective head covering
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4035847 *Jul 2, 1976Jul 19, 1977The Fibre-Metal Products Co.Suspension for a hard hat
US4055860 *Feb 28, 1977Nov 1, 1977Norton CompanySafety cap with energy absorbing suspension
US4293960 *May 22, 1979Oct 13, 1981Palmaer Tore GeorgHeadgear
US5887289 *Nov 7, 1997Mar 30, 1999Theoret; NormandSafety cap with removable fabric cover
US6609254Feb 25, 2002Aug 26, 2003E. D. Bullard CompanyProtective helmet and method of making same
US7937779 *Feb 20, 2007May 10, 2011Depuy ProductsHead gear apparatus having improved air flow arrangement
WO2002067709A2 *Feb 27, 2002Sep 6, 2002Bullard CoProtective helmet and method of making same
Classifications
U.S. Classification2/416
International ClassificationA42B3/14, A42B3/04
Cooperative ClassificationA42B3/14
European ClassificationA42B3/14