US3685778A

US3685778A - Suspension fitting for cargo safety straps

Info

Publication number: US3685778A
Application number: US86568A
Authority: US
Inventors: Harald Berns
Original assignee: Individual
Current assignee: Individual
Priority date: 1969-10-22
Filing date: 1970-11-03
Publication date: 1972-08-22
Anticipated expiration: 1989-08-22
Also published as: FR2065985A5; GB1283425A

Abstract

A suspension fitting for the fastening of cargo safety straps to supports developed as perforated rails and arranged on a cargo holder, container or the like, said supports having suspension openings having in contour substantially the shape of a key bitt, said fitting which comprises a rail anchor of substantially asymmetric omega shape connected with the perforated rail and forming an anchor eye. An eye plate is connected with the rail anchor and serves for the fastening of the safety strap. Anchor hook webs adjoin the anchor eye and extend in opposite directions to define therebetween an introduction opening. A securing member is inserted for the attachment of the eye plate to the anchor eye. The anchor hook webs extend behind the perforated rail outside the suspension openings and have a length different from each other. The suspension openings have a key bitt shaped notch. The longer of the anchor hook webs have a length measured from the vertical longitudinal center axis of the rail anchor and are greater than the distance from the center point of the suspension openings of the perforated rail to the edge of the key bitt notch, and the shorter of the anchor hook webs have a length lesser than that of the longer of the anchor hook webs but exceeding the distance from the center point of the suspension opening of the perforated rail to the notch-free edge of the suspension openings and a cross-sectional width greater than the inside width of the notch.

Description

United States Patent Berns [451 Aug. 22, 1972 154] SUSPENSION FITTING FOR CAR Primary ExaminerChancellor E. Harris SAFETY STRAPS AttrneyErnest G. Montague [72] Inventor: Harald Berns, Wupperta1-Elberfeld, [57] ABSTRACT Germany I [73] Assigneez Firm Herbert Schlbach K06. p A suspension fitting for the fastemng of cargo safety penal-Barman, Germany [22] Filed: Nov. 3, 1970 [21] Appl. No.: 86,568

[] Foreign Application Priority Data Oct. 23, 1969 Germany ..P 69 41 229.9 Sept. 3, 1970 Germany ..P 70 32 822.2

Y [52] US. Cl. ..248/361 A, 24/201 A, 24/221 R, 105/368 T, 105/369 R [51 Int. Cl ..B6ld /00, Bp 7/06 [58] Field of Search...248/3,6l R, 361 A, 220.5, 223;

/369 A, 368 T; 24/201 A, 221 R [56] References Cited UNITED STATES PATENTS 2,927,956 3/1960 Reisch ....l05/369 A X 2,614,685 10/1952 Miller ..24/221 R X 2,401,817 6/1946 Dina ..24/221R 3,017,679 l/l962 Elsner ..105/369 A X 3,212,457 10/1965 Looker ..248/361 A X Sohenk ..248/ 361 straps to supports developed as perforated rails and arranged on a cargo holder, container or the like,"said supports having suspension openings-having in con tour substantially the shape of a key bitt, said fitting which comprises a rail anchor of substantially asymmetric omega shape connected with the perforated rail and forming an anchor eye. An eye plate is connected with the rail anchor and serves for the fasteningof the safety strap. Anchor hook webs adjoin the anchor eye and extend in opposite directions to define therebetween an introduction opening. A securing member is inserted for the attachment-of the eye plate to the anchor eye. The anchor hook webs extend behind the perforated rail outside the suspension openings and have a length different from each other. The suspension openings have a key bitt shaped notch.

The longer of the anchor hook webs have a length measured from the vertical longitudinalcenter axis of the rail anchor and are greater than the distance from Y the center point of the suspension openings of the perforated rail to the edge of the key bitt notch, and the shorter of the anchor hook webs have a length lesser than that of the longer of the anchor hook webs but exceeding the distance from the center point of the suspension opening of the perforated rail to the notchfree edge of the suspension openings and a cross-sectional width greater than the inside width of the notch.

7 Claims, 8 Drawing Figures PATENTEDauszz I972 SHEET 3 IF 4 PATENTED 1:22 :972

SHEET 0F 4 Fig.7

SUSPENSION FITTING FOR CARGO SAFETY STRAPS The present invention relates to a suspension fitting intended for fastening cargo safety straps to supports which are developed as perforated rails, are arranged on cargo carriers, containers or the like, and have in contour essentially key-bitt-shaped openings, the fitting consisting of a rail anchor which can be connected to the perforated rail by insertion and of an eye plate serving for fastening the clamping strap and connected with the rail anchor.

In the case of a suspension fitting of the above-mentioned type the object of the present invention is to simplify it both from the standpoint of manufacture and assembly and from the standpoint of handling and to make the load more secure. I

It is another object of the present invention to provide a suspension fitting for cargo cafety straps which is achieved first of all in an advantageous manner. substantially by the fact, that the rail anchor has a substantially asymmetrical omega shape in such a manner, that the webs which adjoin the anchor eye, extend in opposite directions and leave between each other an insuspension When the rail anchor is inserted in the perforated rail, the rail anchor itself can first of all be turned practically 360 C. around an axis, which extends through the center point of the suspension opening. The eye plate in its turn can be displaced, on the one hand, in the direction of the axis of curvature of the anchor eye web and furthermore be swung around the axis of curvature about the anchor eye web, whereby a diversified is obtained.

The insertion of the rail anchor into a suspension opening in the perforated rail isalso extremely simple troduction opening,.which can be occupied by a securing member for an insertable fastening of'the eye plate to the anchor eye webs, as anchor hook webs, which engage behind the perforated rail outside a suspension opening, are of different lengths from each other, in which connection one of the two anchor hook webs the longer of the two has, measured from the vertical longitudinal central axis of the rail anchor up to the free end of the hook web, a'length of its own which exceeds the distance from the center point of a suspension opening of the perforated rail to the front-side end limiting edge of the key-bitt-like notch provided in the suspension opening and the other anchor hook web the shorter of the two has a length of its own which is less than said amount but exceeds the distance from the center point of the suspension opening of the perforated rail to the curve notch-free limiting edge of the suspension opening and a cross-sectional width of its own which exceeds the inside cross-sectional dimension of the notch, in which connection, in order to broaden the cross-section of the shorter anchor hook web, the securing member, which is adapted to be inby, first of all, in an inclined position with respect to the longitudinal centralaxis of the suspension opening, introducing the longer of the two anchor books into the introduction opening, i.e., in the region of the notch, the part of the hook introduced already engaging below the rail. The shorter of the two anchor hooks is then within the .inside diameter of the suspension opening,

so that it also can be introduced. If both anchor hooks are at the height of the inner surface of the anchor rail,

the rail anchor is moved back in direction opposite the direction of insertion, so that the shorter anchor hook web can also engage below the perforated rail outside the suspension opening. Ifthe rail anchor is then turned somewhat so that the longer anchor hook which has been first introduced is turned out of the region of the notch, the position of final assembly is achieved. This insertion can be effected by a simple manipulation of the hand.

The pivoting of the eye plate to the anchor eye web can be effected in the manner, that the eye plate is inserted through an introduction opening left between the anchor hooks and is then practically threaded onto the anchor. eye web inthe circumferential direction of the eye around the shorter anchor hook web. For the are also supported in the direction towards each other.

serted between the two anchor hook webs, is provided laterally with grip-over webs which, from the common introduction opening between the two anchor hook webs in the direction towards the free hook end, extend on both sides laterally over the anchor hook web and are connected with it and advisedly have a peripheral shape of their own adapted to the shape of the contour of this anchor hook web.

By the characteristic development of the rail anchor, on the one hand, whichcan be connected by plugging to the perforated rail, and the novel pivoting of an eye plate to the strap attachment, on the other hand, it has been possible for the first time to shape a suspension fitting, so that it can be adapted to the greatest possible extent to the shape of the load. With this new construction there is possible a ball joint-like universal displaceability of the strap at least around three axes, so that this new suspension fitting can be used on any desired shape of load.

In order to facilitate the insertion of the rail anchor into the suspension opening of the perforated rail, it is advisable, if the shorter'of the two anchor hooks is rounded in arcuate shape at its free end commencing at the lower edge and extending inthe direction towards the anchor eye web.

The subject matter of the present invention also gains in importance by the fact, that the securing of the suspension fitting by the broadening of the shorter anchor hook webis decisively improved by this, since this anchor hook web, even in the most unfavorable position when it is by accident located directly in the region of the notch of the suspension opening cannot slip out of same since, due to the provision of an anchor hook web broadening, it has a cross-sectional width of its own which exceeds the inside diameter of the notch.

Seen from the structural side, the anchor hook web broadening developed as substantially U-shaped securing bow has the advantage, that it is developed as a simple structural part produced by stamping and bending, which is able by its characteristic shape not only to form the desired arm widening, but in addition this securing bow is able, by the arms engaging between the completely prevented. Thusthe .loard is decisively improved. -I

- .tion;

two webs forming the widening, which arms are of a length corresponding to the inside width dimension of the introduction opening betweenthe two anchor hook webs, toserveas supports which, on the one hand, act

on one end, on the other hand, on the other anchor hook web and thus affords security against narrowing of the introduction opening under load.

) Summarizing, it ispossible by the present invention to create a suspension-fitting which'is characterized by its universal use for any desired shapes of load and which furthermore can satisfythe highest demands 4 center point of the opening and the curved free limiting edge 18 of the opening n In inserted condition, the

anchor hook webs

11 and 12 grip behind the perforatedrail C outside the opening 15, whereby a dependable holding is produced. The

' perforated rail C can be fastened by screws 19 or other forms a single structural unit together with the viewed from the standpoint of safety. Due to the fact i that the rail anchor forms a coherent structural unit with the eye plate and the inserted securing member, it

t is particularly easy to handle. It represents an extreme ly useful, practical solution of extremely high value.

Furthermore, the danger of unintended slipping out of the suspension opening of the perforated rail, is safety of the lashed With these and other objects in view which will fastening means to a load carrier20 or 'else be connected by welding or the like, to, for instance, a loading container. 7

The eye plate B when pivoted to the anchor eye web securing member D inserted in the introduction opening 13.

Referring now again to the drawings, and in particucheeks 21 which extend laterally over the anchor hook become apparent in the following detailed description,

the present invention will be clearly'understood in con-' nection with the accompanying drawings, in which; .'FlG. 1 is a perspective view of the rail anchor and a bolt-shaped securing memberin still uncoupled condi- I FlG.-2 is a longitudinal coupled with the perforated rail; a I

FIG. 3 is-a perspective viewof the entire suspended suspension fitting; 7

section thr'ough'a rail anchor FIG. .4 is a showing corresponding to FIG. 1 of another embodiment of the suspension fitting with rail anchor and bow-shaped securing member in still uncoupled condition; FIG. 5 is a perspective view of the securing bow inserted therein; r

FIG. 6 is a section, corresponding to FIG. 2, with the rail anchor with a I perforated rail in cross-section and the rail anchor suspended; :7

' FIG. 7 is a top plan view corresponding thereto; and FIG. 8 is a'further top plan view with the suspension fitting in the position, inwhich the widened anchor hook web coincides with the notch in the opening. 3 Referring now to the drawings, andin particular to FIGS. 1 and 2, in the case of the suspension fitting shown in the drawing, the suspension fitting comprises a rail anchor A, an eye plate'B for the fastening of a clamping belt (not shown) and a perforated rail C.

The rail anchor A has a substantially asymmetric web 12 and have a peripheral sh'ape corresponding to the p'eripheralshape of the anchor hook web. The side cheeks 21 are bent off from a central portion 22, which represents .a rectangular field intheblank'. Two supporting webs 23.are also bent off from the central part 22 in such a direction as to point between the two side.

cheeks 21, the lengthof these supporting webs 23 corresponding to the inside size 'of the introduction opening 13. In inserted condition of thesecuring'bow, the

side cheeks 21 form the anchor web widening, while i the supporting'webs 23 fill up the inside; opening between the twoarrns 11 and 12 and serve as supports.

The securing bow can be fastened by spot welding. v

While I have disclosed several embodiments of the present invention, it is to be understood that these embodiments are given by'exarnple only and not in a limiting sense.

lclaim: n 1. A suspension fitting for the fastening of cargo safety straps'to supportsformedas perforated rails and arranged on. a cargo holder, container or the like, said omega shape, two

anchor hook webs

11 and 12 pointing in opposite directions adjoiningan anchor eye 10.

Between the two

anchor hook webs

11 and 12 there is left an'introduction opening l3'into which a securing member D, .for instance abolt 14 of H-shaped crosssection (FIGS. 1 and 2) can be inserted.

Referring now to FIG. 3 of the drawing, the anchor hook webs are of a different length from each other, the anchor hook 11 having a total length, which exceeds the distance between the center point of a suspension opening 15 and the end edge 16 of a notch 17 in the opening 15. The total length of theanchor 2 book 12 is such, that it is less than the distance between the center point of the opening andthe end edge 16 of the notch 17, but is greater than the length between the supports having at least one suspension openinghaving in contour substantially the shape of a key bit, said fitting comprising a rail anchor of substantially asymmetric Q shape movably connected with said perforated rail in saidat least one suspension opening and forming an anchor eye,

an eye plate connected with said rail. anchor and for the fastening of said safety strap, 7 anchor hook webs adjoining said anchor eye and extending in opposite directions to define therebetween anintroduction opening,

a' securing member inserted for the attachment of said eye plate to said anchor eye,

said anchor hook webs extending behind said perforated rail outside said at least one suspension opening and having a length different from each other, said at least one suspensionopening having a key bit shaped notch, n the longer of said anchor hook webs having a length measured from the vertical longitudinalcent'er axis of said rail anchor and being greater than the distance from the center point of said at least one suspension opening of said perforated rail to the edge of said key bit notch, and

the shorter of said anchor hook webs having a length smaller than that of said longer of said anchor hook webs but exceeding the distance from the center point of said suspension opening of said perforated rail to the notch-free edge of said atleast one suspension opening and a cross-sectional width greater than the inside width of said notch. 2. The suspension fitting, as set forth in claim 1, wherein said securing member comprises a bolt received between said anchor hook webs and filling up said introduction opening as well as in a self-holding manner.

3. A suspension fitting for the fastening of cargo safety straps to supports formed as perforated rails and arranged on a cargo holder, container or the like, said supports having at least one suspension opening having I said anchor hook webs extending behind said perforated rail outside said at least one suspension opening and having a length different from each other, said at least one suspension opening having a key bit shaped notch, I

the longer of said anchor hook webs having a length measured from the vertical longitudinal an eye plate connected with said rail anchor and serving for the fastening of said safety strap,

anchor hook webs adjoining said anchor eye and extending in opposite directions to define therebetween an introduction opening,

a securing member inserted for the attachment of said eye plate to said anchor eye,

said anchor hook webs extending behind said perforated rail outside said at least one suspension opening and having a length different from each other, said at least one suspension opening having a key bit shaped notch,

the longer of said anchor hook webs having a length measured from the vertical longitudinal center axis of said rail anchor and being greater than the distance from the center point of said at least one suspension opening of said perforated rail to the edge of said key bit notch, and

the shorter of said anchor hook webs having a length smaller than that of said longer of said anchor hook webs but exceeding the distance from the center point of said suspension opening of said perforated rail to the center axis of said rail anchor and being greater than the distance from the center point of said at least one suspension openingof said perforated rail to the edge of said key bit notch, and

the shorter of said anchor hook webs having a length smaller than that of said longer of said anchor hook webs but exceeding the distance from the centerpoint of said suspension opening of said perforated rail to the notch-free edge of said at least one suspension opening and a cross-sectional width greater than the inside width of said notch, and

said bolt has a substantially H-shaped cross-section in longitudinal direction.

4. The suspension fitting, as set forth in claim 1, A suspension fitting for the fastening of cargo safety straps to supports formed as perforated rails and arranged on a cargo holder, container or the like, said supports having at least one suspension opening having in contour substantially the shape of a key bit, said fitting comprising a rail anchor of substantially asymmetric shape movably connected with said perforated rail in said at least one suspension opening and forming an anchor eye, notch-free edge of said at least one suspension opening and a cross-sectional width greater thanthe inside width of said notch, and

said securing member received, between said anchor hook webs is equipped laterally with additional webs surrounding laterally on both sides one of said anchor hook webs from said introduction opening in the direction towards the end of the free hook and are connected with said anchor hook web, and said additional webs have ashape complementary to the contour of said anchor hook web.

5. A suspension fitting for the fastening of cargo safety straps to supports formed as perforated rails and arranged on a cargo holder, container-or the like, said supports having atleast one suspension opening having in contour substantially the shape of a key bit, said fitting comprising a rail anchor of substantially asymmetric Q shape movably connected with said perforated rail in said at least one suspension opening and forming an anchor eye,

an eye plate connected with said rail anchor and serving for the fastening of said safety strap,

said anchor hook webs extending behind said perforated rail outside said at least one suspension opening and having a length difierent from each smaller than that of said longer of said anchor.

hook webs but exceeding the distance from the center point of said suspension opening of said. perforated rail to the notch-free edge of said at tending parallel to each other andconnecting the fold lines of said side, cheeks together, and said supporting webs are of a length corresponding to the inside size of said introduction openings,

between said anchor hook'webs and bent off towards the same side.

6..Ihe suspension fitting, as set forth inclaim 5, which includes means for connecting said securing bow with said anchor hook webs.

7. The suspension fitting, 'as set forth in claim 1,

3 wherein said shorter of said anchor hook webs is arcusupporting webs disposed along said fold lines exately rounded commencing at'its free endfrom the lower edgean'd'eirtending in the direction towards said I I anchor eye.

i t i'

Claims

1. A suspension fitting for the fastening of cargo safety straps to supports formed as perforated rails and arranged on a cargo holder, container or the like, said supports having at least one suspension opening having in contour substantially the shape of a key bit, said fitting comprising a rail anchor of substantially asymmetric Omega shape movably connected with said perforated rail in said at least one suspension opening and forming an anchor eye, an eye plate connected with said rail anchor and serving for the fastening of said safety strap, anchor hook webs adjoining said anchor eye and extending in opposite directions to define therebetween an introduction opening, a securing member inserted for the attachment of said eye plate to said anchor eye, said anchor hook webs extending behind said perforated rail outside said at least one suspension opening and having a length different from each other, said at least one suspension opening having a key bit shaped notch, the longer of said anchor hook webs having a length measured from the vertical longitudinal center axis of said rail anchor and being greater than the distance from the center point of said at least one suspension opening of said perforated rail to the edge of said key bit notch, and the shorter of said anchor hook webs having a length smaller than that of said longer of said anchor hook webs but exceeding the distance from the center point of said suspension opening of said perforated rail to the notch-free edge of said at least one suspension opening and a cross-sectional width greater than the inside width of said notch.

2. The suspension fitting, as set forth in claim 1, wherein said securing member comprises a bolt received between said anchor hook webs and filling up said introduction opening as well as in a self-holding manner.

3. A suspension fitting for the fastening of cargo safety straps to supporTs formed as perforated rails and arranged on a cargo holder, container or the like, said supports having at least one suspension opening having in contour substantially the shape of a key bit, said fitting comprising a rail anchor of substantially asymmetric Omega shape movably connected with said perforated rail in said at least one suspension opening and forming an anchor eye, an eye plate connected with said rail anchor and serving for the fastening of said safety strap, anchor hook webs adjoining said anchor eye and extending in opposite directions to define therebetween an introduction opening, a securing member inserted for the attachment of said eye plate to said anchor eye, said anchor hook webs extending behind said perforated rail outside said at least one suspension opening and having a length different from each other, said at least one suspension opening having a key bit shaped notch, the longer of said anchor hook webs having a length measured from the vertical longitudinal center axis of said rail anchor and being greater than the distance from the center point of said at least one suspension opening of said perforated rail to the edge of said key bit notch, and the shorter of said anchor hook webs having a length smaller than that of said longer of said anchor hook webs but exceeding the distance from the center point of said suspension opening of said perforated rail to the notch-free edge of said at least one suspension opening and a cross-sectional width greater than the inside width of said notch, and said bolt has a substantially H-shaped cross-section in longitudinal direction.

4. The suspension fitting, as set forth in claim 1, A suspension fitting for the fastening of cargo safety straps to supports formed as perforated rails and arranged on a cargo holder, container or the like, said supports having at least one suspension opening having in contour substantially the shape of a key bit, said fitting comprising a rail anchor of substantially asymmetric Omega shape movably connected with said perforated rail in said at least one suspension opening and forming an anchor eye, an eye plate connected with said rail anchor and serving for the fastening of said safety strap, anchor hook webs adjoining said anchor eye and extending in opposite directions to define therebetween an introduction opening, a securing member inserted for the attachment of said eye plate to said anchor eye, said anchor hook webs extending behind said perforated rail outside said at least one suspension opening and having a length different from each other, said at least one suspension opening having a key bit shaped notch, the longer of said anchor hook webs having a length measured from the vertical longitudinal center axis of said rail anchor and being greater than the distance from the center point of said at least one suspension opening of said perforated rail to the edge of said key bit notch, and the shorter of said anchor hook webs having a length smaller than that of said longer of said anchor hook webs but exceeding the distance from the center point of said suspension opening of said perforated rail to the notch-free edge of said at least one suspension opening and a cross-sectional width greater than the inside width of said notch, and said securing member received between said anchor hook webs is equipped laterally with additional webs surrounding laterally on both sides one of said anchor hook webs from said introduction opening in the direction towards the end of the free hook and are connected with said anchor hook web, and said additional webs have a shape complementary to the contour of said anchor hook web.

5. A suspension fitting for the fastening of cargo safety straps to supports formed as perforated rails and arranged on a cargo holder, container or the like, said supports having at least one suspension opening having in contour substantially the shape of a key bit, said fitting comprising a rail anchor of substantially asymmetric Omega shape movably connected with said perforated rail in said at least one suspension opening and forming an anchor eye, an eye plate connected with said rail anchor and serving for the fastening of said safety strap, anchor hook webs adjoining said anchor eye and extending in opposite directions to define therebetween an introduction opening, a securing member inserted for the attachment of said eye plate to said anchor eye, said anchor hook webs extending behind said perforated rail outside said at least one suspension opening and having a length different from each other, said at least one suspension opening having a key bit shaped notch, the longer of said anchor hook webs having a length measured from the vertical longitudinal center axis of said rail anchor and being greater than the distance from the center point of said at least one suspension opening of said perforated rail to the edge of said key bit notch, and the shorter of said anchor hook webs having a length smaller than that of said longer of said anchor hook webs but exceeding the distance from the center point of said suspension opening of said perforated rail to the notch-free edge of said at least one suspension opening and a cross-sectional width greater than the inside width of said notch, and said securing member comprises a substantially U-shaped securing bow including a stamping having crossed-arm shape about a central portion along parallel opposite fold lines and defining side cheeks forming the widening of said anchor hook web of said securing bow, supporting webs disposed along said fold lines extending parallel to each other and connecting the fold lines of said side cheeks together, and said supporting webs are of a length corresponding to the inside size of said introduction openings between said anchor hook webs and bent off towards the same side.

6. The suspension fitting, as set forth in claim 5, which includes means for connecting said securing bow with said anchor hook webs.

7. The suspension fitting, as set forth in claim 1, wherein said shorter of said anchor hook webs is arcuately rounded commencing at its free end from the lower edge and extending in the direction towards said anchor eye.