US3910593A

US3910593A - Arrangement for securing a body by means of an adhesive bond

Info

Publication number: US3910593A
Application number: US473883A
Authority: US
Inventors: Gunter Schwarz
Original assignee: Individual
Current assignee: Individual
Priority date: 1973-06-01
Filing date: 1974-05-28
Publication date: 1975-10-07
Anticipated expiration: 1992-10-07
Also published as: CH580762A5; CA1009209A; FR2231876B1; IT1012911B; JPS587314B2; DE2328084B2; ATA434974A; DE2328084C3; JPS5041933A; DE2328084A1; AT340289B; FR2231876A1

Abstract

An arrangement for securing a body by means of an adhesive bond comprising an attachment plate provided with an adhesive surface, said attachment plate being equipped with at least one projection at the face of the attachment plate facing away from the adhesive surface. At the end of the projection there is secured a locking element. A part of the body which is to be secured, and which body part faces towards the adhesive surface, and an elastomeric disk substantially corresponding in size to the size of the adhesive surface are arranged between the attachment plate and the locking element, so that a force acting laterally upon the body compresses together the elastomeric disk and is transmitted via the projection to the attachment plate.

Description

United States Patent Schwarz Oct. 7, 1975 [54] ARRANGEMENT FOR SECURING A BODY 3,761,106 9/1973 Schwarz 280/11.37 E BY MEANS OF AN ADHESIVE BOND 3,817,543 6/1974 Haff 280/1 1.13 W

[76] Invmtor: gs gi fizgg Primary Examiner-David Schonberg Assistant Examiner-David M. Mitchell [22] Filed: May 28, 1974 Attorney, Agent, or Firm-Werner W. Kleeman [21] Appl. No.: 473,883

' [57] ABSTRACT [30] Foreign Application Priority Data An arrangement for securing a body by means of an J 1 I973 Germ n 2328084 adheswe bond compnsmg an attachment plate proune a y vided with an adhesive surface, said attachment plate being equipped with at least one projection at the face i 280M137 24/ 1 6 56? of the attachment plate facing away from the adhesive Fieid E 11 35 H surface. At the end of the projection there is secured i' 'g'g' g' 13 a locking element. A part of the body which is to be 2'4/2l R 5 8 secured, and which body part faces towards the adhesive surface, and an elastomeric disk substantially corresponding in size to the size of the adhesive surface [56] References C'ted are arranged between the attachment plate and the UNITED STATES PATENTS locking element, so that a force acting laterally upon 1,757,462 5/1930 Mack 85/8.3 the body compresses together the elastomeric disk and 9/1952 Gul'vich E is transmitted via the projection to the attachment 3, 1 ,359 11 1965 Schneider..... 280 11.35 11 1 t 3,295,860 1/1967 Van Hoven 280/1 1.37 E p a 6 3,506,291 4/1970 Mehelich 85/83 18 Claims, 5 Drawing Figures U.S. Patent Oct. 7,1975 3,910,593

k lpzzls ARRANGEMENT FOR SECURING A BODY BY MEANS OF AN ADHESIVE BOND BACKGROUND OF THE INVENTION The present invention relates to a new and improved arrangement for securing a body by means of an adhesive bond, and'in a particularly useful exemplary environment can be employed for attaching a body to a surface of a ski or for attaching part of a ski binding.

If a body which is adhesively bonded by means of its outer surface to a fixed or rigid support is subjected to lateral forces, then at its attachment surface, i.e. the adhesive surface or interface, owing to the action of a bending moment, there are present at one side compressive forces and at the opposite side traction or tension forces. These traction forces concentrate at the angle between the support and the body protruding therefrom owing to the notch effect, and therefore such adhesive bond tears away from such location even in the presence of relatively low forces. Relatively hard adhesive bonds, by means of which the body is directly secured to the support, are also rather easily destroyed due to the application of impact-like or intermittently applied forces.

SUMMARY OF THE INVENTION Hence, it is a primary object of the present invention to provide an improved arrangement for fixing a body by means of an adhesive bond to a support in such a manner that it is as resistant as possible to applied forces, particularly to intermittent or surge-like laterally applied forces, and furthermore, to especially insure for uniform distribution of the forces over the entire adhesive surface.

Yet a further significant object of the present invention aims at the provision of a new and improved arrangement for securing a body by an adhesive bond to a surface in an extremely reliable and firm manner, particularly to be resistant against the application of laterally acting and suddenly or intermittently applied forces.

A further noteworthy object of the present invention aims at the provision of a new and improved arrangement for attaching a body to a surface i.e. especially a surface of a ski, or a component or part of the ski binding defined by a body to a ski, in an extremely efficient, reliable and secure manner, capable of effectively withstanding the forces normally applied to the body without destruction of the adhesive bond.

Now in order to implement these and still further objects of the invention, which will become more readily apparent as the description proceeds, the invention contemplates a novel arrangement for securing a body by means of an adhesive bond, which arrangement is manifested by the features that there is provided an attachment plate equipped with an adhesive surface and at least one projection at the face or side of the attachment plate which faces away from the adhesive surface.

At the end or end region of the projection there is secured a locking element. A part of the body which is to be secured and which part faces away from the adhesive surface as well as an elastomeric or rubber-elastic .disk substantially corresponding in size to the size of the adhesive surface are arranged betweenthe attachment plate and the locking element, so that a force which acts laterally upon the body compresses together the elastomeric disk and is transmitted via the projection to the attachment plate.

In this way there can be realized an effective damping of any possibly arising intermittent or surge-like acting forces.

In order to be able to arrange the part-of the body which is to be secured, and which part faces in the direction of the adhesive surface, as well as the elastomeric disk between the attachment plate and the locking element the projection or projections, when the same is or are centrally arranged at the attachment plate, extend through an associated opening of the disk and this part of the body to be attached. Owing to the central arrangement of the projection the traction forces acting upon the projection are uniformly distributed at the attachment plate, so that notch effects at the edge of the adhesive bond are avoided. The attachment plate, of course while insuring for sufficient strength for taking-up the tension forces via the projection, advantageously is constructed to be as thin as possible in order to be able to elastically deform in the presence of bending loads.

A preferred application of the attachment arrangement of this development resides in the mounting of a body at a ski, such as for instance a body preventing crossover or crossing of the skis hereinafter conveniently referred to as an anti-crossover body at the front portion of the ski, or parts of components of the ski binding. As is well known the attachment of a body at the front portion of a ski is problematic since the ski, at this location, is particularly thin and the use of screws or equivalent fastening expedients do not provide any sufficient holding action. Furthermore, it should be appreciated that attempts are normally made in any case to avoid weakening the ski which would be the case if screw holes or bores are used in conjunction with screw fasteners. When attachment is performed by a standard adhesive bond there is the danger that the adhesive bond is stronger than the adhesive connection or gluing bond which exists between the individual plies or layers of the ski, so that a pronounced, impact-like loadingof the body fixedly bonded to the ski can lead to destruction of the adhesive or gluing bond of the ski plies. Since during bending of the ski the anticrossover body is not bent when using the heretofore known rigid adhesive bonds, destruction of such bonds can occur. Moreover, when using the attachment arrangements as contemplated by the present invention and taught in the various exemplary embodiments disclosed herein, it is beneficially possible to easily and rapidly exchange damaged or worn anti-crossover bodies or the like. The adhesive attachment can be perfected in a very simple and reliable way with the aid of an adhesive foil or strip which is tacky or adhesive at both faces. This is particularly associated with the advantage that waiting times of a number of hours, as such are required when using adhesive agents which must harden or set, no longer are necessary.

Additional aspects and features of the invention will become more readily apparent from the detailed description given hereinafter relating to a number of exemplary embodiments of means for securing a body by an adhesive bond, and wherein there is described the attachment of the previously mentioned anticrossover body to ski purely by way of example and not limitation.

BRIEF DESCRIPTION OF THE DRAWING The invention will be better understood and objects other than those set forth above, will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawing wherein:

FIG. 1 is a cross-sectional view through an anticrossover body secured, according to the teachings of the invention, to a ski, the sectional view being taken substantially transversely with respect to the lengthwise direction of the ski;

FIG. 2 is a fragmentary cross-sectional view of the attachment arrangement depicted in FIG. 1, such fragmentary cross-sectional view being taken in the lengthwise direction of the ski;

FIG. 3 is a fragmentary cross-sectional view, similar to the showing of FIG. 1, of another exemplary embodiment of attachment arrangement as contemplated by the invention;

FIG. 4 is a partial cross-sectional view, corresponding to the showing of FIG. 2, of a still further exemplary embodiment of the invention; and

FIG. 5 is a cross-sectional view, corresponding to the showing of FIG. 1, taken in the lengthwise direction of the ski and illustrating a fourth exemplary embodiment of attachment arrangement for securing an anticrossover body to, for instance, a ski.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawing, it is to be appreciated that in all of the illustrated exemplary embodiments there have been portrayed, purely by way of example, the use of the various constructions of attachment arrangements for applying a so-called anti-crossover body 1 to a ski 2. Conceptually, however, body 1 can be also considered to constitute a part of a ski binding for instance, likewise to be adhesively bonded to a ski. As above explained, the invention is particularly concerned with attachment means for securing such anticrossover body 1 to a surface, by way of example in this instance a ski or part of a ski binding to the ski. Anticrossover bodies are conventionally used at the present time in the skiing industry as ski guidance stabilizers, functioning to prevent unintentional crossover of the skis during skiing, so as to safeguard the skier against hazardous skiing accidents. The body I, particularly those used as anti-crossover bodies, are well known in the skiing art, and typically comprise a relatively lightweight hollow body member or body 1 embodying a top wall 1a, side walls lb and a bottom wall or floor 8, the front and back of the body 1, considered with respect to the tip and rear of the ski, preferably being open. Normally such body 1 is advantageously formed of a plastic material which is resistant to impact forces, such as NYLON, although other materials obviously could be employed.

As mentioned above, the invention is particularly concerned with attaching such body to a surface, such as the ski 2. Hence, the illustrated exemplary embodiment of attachment arrangement as depicted in FIG. 1 essentially comprises an attachment or securing plate 3 which is adhesively bonded by any suitable commercially available adhesive layer 24 to the member or surface to which it is intended to be secured, in this case the top surface of the ski 2. Continuing, the attachment arrangement, apart from the attachment or securing plate 3 further comprises an elastic e.g. elastomeric or rubber disk or plate 4, hereinafter simply usually referred to as the elastomeric or rubber-like disk 4, for instance formed of a foamed plastic, and which can be compressed by the body member or body 1. The disk 4 can be formed of, for instance, foamed neoprene. It should be appreciated that the aforementioned arrangement is equally provided for the embodiments of attachment arrangements depicted in FIGS. 3 to 5 and thus the same reference characters have been generally employed for the same components.

Each of the illustrated attachment plates 3 is provided at its central region with an upwardly depending projection which extends into the hollow confines 1c of the body 1, and which in the exemplary embodiment of FIGS. 1 and 2 consists of a wire bracket or strap 6 which is suspended at a channel or recess 5 provided at the attachment plate 3. The recess or channel 5 is formed such that it is open at its two opposed ends or sides, so that, in the manner illustrated, it can be engaged from below by both ends 6a of the wire bracket 6. The confronting ends 6a of the bracket or strap 6 are slightly spaced from one another, as shown, and bear against the bottom wall 5a of the recess or channel 5, as best seen by referring to FIGS. 1 andd 2. The wire bracket 6 further extends through a recess 7 provided at the elastic or elastomeric disk 4 and also through an appropriately configured recess or slot 9 provided at the floor or bottom wall 8 of the body 1. At the other side of the floor 8, i.e. at the side of the floor 8 facing towards the hollow space lcenclosed by the body 1 there is inserted beneath the transversely extending portion 10 of the wire bracket or strap 6 a locking element here shown as a resilient clamp 11 which is under a certain pre-stress or bias. The cross-sectional configuration or profile of the clamp 11 can be best ascertained by referring to FIG. 2. This clamp 11 can be fabricated from any suitable sheet metal or plastic. If the clamp 11 possesses sufficient elasticity it is even possible in some instances to omit the use of the elastic disk 4. On the other hand, the elastic disks 4 can also render superfluous the use of an elastic locking element, such as the clamp 11.

Such an exemplary arrangement has been depicted in FIG. 3, wherein, as is also the case for other Figures, generally the same reference characters have been used for the same components. Now in this embodiment the attachment plate 3 carries a projection 12 which is formed or welded thereat, this projection 12 being provided with a transversely extending slot 13 at the region of its upper end 12a, as best seen by referring to FIG. 3. The height of this transversely extending slot 13 is dimensioned such that upon compression of the elastic disk 4 there can be inserted through such transversely extending slot 13 within the body 1, i.e. above the floor 8, an appropriately configured locking bolt or equivalent locking element, such as a standard shim, wedge or key, which has not been particularly shown to preserve clarity in illustration. Upon releasing the body 1 the inserted locking bolt or otherwise is clampingly retained in the slot 13 owing to the elasticity of the disk 4. For the form-locking or positive securement it can possess a transversely extending groove in which there comes to rest an upper situated portion of the projection 12.

FIG. 4 illustrates an exemplary embodiment of the invention wherein here the projection of the attachment plate 3 consists of two substantially parallel elastic ledges or strips 14 which are formed or secured at the plate 3. These ledges 14 are provided at the outside thereof at the region of their upper ends with the substantially wedge-shaped ribs 16 forming the respective shoulders 15. Upon pressing together the resilient ledges 14 such can be piercingly inserted, together with their ribs 16, through the recesses 7 and 9, whereafter, after compression of the elastic disk 4, the shoulders lockingly engage at the body 1 above the floor 8 thereof. To secure the thusestablished attachment it is then possible to force any suitable expanding element 17 into the hollow compartment 14a formed between the ledges 14. Insertion of the ledges 14 through the recess 9 is facilitated by the provision of the wedge surfaces 18 at the region of the upper surfaces of the ribs 16.

FIG. 5 illustrates an exemplary embodiment of attachment arrangement wherein the projection is formed by a lock or locking element 19 which is rotatable relative to the attachment plate 3. This lock 19 possesses a slim shaft 20 terminating in a head 21 which is flat in radial direction. For the purpose of inserting this head through the recesses 7 and 9 of the disk 4 and the body floor 8 respectively, these recesses are constructed of substantially slot-like configuration. After insertion of the head 21 through the recess 9, while suitably compressing the disk 4, this head 21 can be brought into its locking position by rotating the same through preferably about 90.

It is advantageous to provide a groove 22 at the top surface of the floor 8, as illustrated, into which there engages the head 21 when it assumes its locking position. Since in this exemplary embodiment, in contrast to all of the other embodiments, the body 1 is not secured against rotation relative to the attachment plate 3 by means of the projection per se, there are advantageously provided two oppositely situated edges 23 of the attachment plate 3 which are upwardly flexed or bent in such a manner that they bear against the flanks or outer regions of the floor or bottom portion 8 of the body 1. This then prevents any undesired rotation of such body 1. On the other hand, it is equally possible to secure the body 1 against rotation by also providing more than only one of the relevant projections at the same attachment plate.

The adhesive layer or material 24, which has only been schematically shown in the drawing to simplify the illustration, can consist of a uniform adhesive layer or, however, preferably of a foil which is provided with adhesive at both faces, such as for instance the commercially available double-face adhesive foil, known as SCOTCH MOUNT, of Minnesota Mining & Manufacturing Company. The attachment plate 3 can be formed of sheet metal, such as sheet metal, or any plastic which is impact resistance.

While there is shown and described present preferred embodiments of the invention, it is to be distinctly understood that the invention is not limited thereto, but may be otherwise variously embodied and practiced within the scope of the following claims. Accordingly,

What is claimed is:

1. An attachment arrangement for securing a body by means of an adhesive bond to an upper surface of a ski, comprising an attachment plate possessing an adhesive surface for connection of the attachment plate to the surface of a ski, said attachment plate being equipped with at least one projection at a side of the attachment plate facing away from the adhesive surface, a locking element contactingly engaging with said projection, said body having a'portion which faces the attachment plate, an elastomeric disk substantially corresponding in size to the size of the adhesive surface, said portion of said body and said elastomeric disk being arranged between the attachment plate and the locking element, so that a force acting laterally upon the body compresses the elastomeric disk and is transmitted via the projection to the attachment plate.

2. The attachment arrangement as defined in claim 1, wherein said body is provided with a recess at said body portion through which piercingly extends said projection.

3. The attachment arrangement as defined in claim 1, wherein said body is provided with a wall at said body portion through which piercingly extends said projection.

4. The attachment arrangement as defined in claim 1, wherein the elastomeric disk at the side of the attachment plate facing away from the adhesive surface of the attachment plate is provided with adhesive so as to secure by an adhesive bond the elastomeric disk with the attachment plate.

5. The attachment arrangement as defined in claim 1, wherein the side of the body facing towards the adhesive surface is provided with adhesive so as to secure by an adhesive bond said body with the elastomeric disk.

6. The attachment arrangement as defined in claim 1, wherein said projection is provided with an opening, said locking element being selectively seated in said opening to act between said body portion and said projection.

7. The attachment arrangement as defined in claim 6, wherein said locking element is a pre-biased element inserted into said opening with a pre-bias.

8. The attachment arrangement as defined in claim 6, wherein said locking element comprises a clamp formed of resilient material, said resilient clamp engaging at said projection and bearing against said body.

9. The attachment arrangement as defined in claim 1, wherein said projection comprises a bracket, said attachment plate being provided with a channel, said bracket being suspended at said channel.

10. The attachment arrangement as defined in claim 1, wherein said projection is formed at said attachment plate.

11. The attachment arrangement as defined in claim 1, wherein said projection is welded to said attachment plate.

12. The attachment arrangement as defined in claim 1, wherein said projection is provided with means for elastically and resiliently engaging said projection with the body portion.

13. The attachment arrangement as defined in claim 12, wherein said means of said projection comprises at least one resilient ledge member.

14. The attachment arrangement as defined in claim 1, wherein said projection comprises a substantially flat rotatable bolt.

15. The attachment arrangement as defined in claim 1, wherein said body possesses a recess at said body portion, said projection possessing a substantially flat base, the shape of which is accommodated to the shape of the recess.

16. The attachment arrangement as defined in claim 1, wherein the attachment plate possesses raised edge portions which engage therebetween said body.

17. The attachment arrangement as defined in claim 1, wherein said body comprises an anti-crossover body

Claims

1. An attachment arrangement for securing a body by means of an adhesive bond to an upper surface of a ski, comprising an attachment plate possessing an adhesive surface for connection of the attachment plate to the surface of a ski, said attachment plate being equipped with at least one projection at a side of the attachment plate facing away from the adhesive surface, a locking element contactingly engaging with said projection, said body having a portion which faces the attachment plate, an elastomeric disk substantially corresponding in size to the size of the adhesive surface, said portion of said body and said elastomeric disk being arranged between the attachment plate and the locking element, so that a force acting laterally upon the body compresses the elastomeric disk and is transmitted via the projection to the attachment plate.

17. The attachment arrangement as defined in claim 1, wherein said body comprises an anti-crossover body secured to a front portion of the ski for preventing undesired crossing of the skis.

18. The attachment arrangement as defined in claim 1, wherein said body comprises a component of the ski binding.