SE1730099A1 - Pad-Like Support Device for a Horse´s hoof - Google Patents

Abstract

Abstract Tilt: present invention troncerns a padlilre supiaort det/ice, (l) suitable to he attached to altorsefls hoof (2) eonirirised of at least one first side part (6), at least one second side part (7), atleast one interrnediate ifiart (S) and a suppoit section (9) for the. frog. The padlilçt: suifiportdevice (l) is cornprised of at least one first tlexilile zone (l O) and at least one second tlexililezone, (l l) exttsndiiig essentially along the paddilre support devicefs lorigitudinal direction,allowinig tor the support section (9) find the interntediozite part (8) to lie tlexihly arranged in thehorizontal and vertical directions relatiye to the first side part (6) and the seeoiid side part (7).The stipport section (9) preferalllyf includes at least title first rnaterial layer (25) etinstituting asurface layer on the top side of the support section (9) and at least one seeoiid material layer(26) constittlting a surface layer on the lvottraiitl side of the stipport section (9) and at least oneinterntediate material layer (27) positioned 'hettyeeii the first material layer (25) and thestfcond material layer (265). Tilt: interinediate material layer (27) is of a rtilatiyfely' softer ntateri al than the material of the first material layer (25) and the second material layer (26).Tin: first side part (6) and the second side part (7) include at least one protmtliiig segrnent (40)tyhieli extends a stretch (S) out frorn the plane (P) over all for part of the side parts' (ti, 7) bottom sitltfl that during n se is iQositiontfd at the litiofs rjniarter.

Description

1 PAD-LIKE SUPPORT DEVICE FOR A HORSE'S HOOF.

Field of the InventionThe present invention concerns a pad-like support device in accordance with the claims.Background of the Invention Horses have evolved over millions of years and have adapted in relation to their natural wayof life and the wild habitats they have lived in. The natural evolution of horses has led to theirhooves, although they feel hard and see, to lack flexibility, including parts that are mutuallymovable relative to each other. The anatomical structure of hooves with moveable hoof partshelps to dampen strain during impact With the ground, reduces the risk of a horse sprainingitself and increases fluid (blood) circulation in the hoofs and legs. Figure 1A showsschernatically a bottom view a horse hoof's elemental parts. A horse hoof consists essentiallyof a toe 101, two hoofwalls 102 and 103, a sole 104, a frog 105, angle of walls 106 and 107as well as bars 108 and 109. A hoof also includes a shock absorbing digital cushion 110. Theparts of a horse's hoof parts move relative to each other during a hoof's impact phase, stance phase and breakover (rollover)i phase.

Figures IB - 1D show how a horse hoof s parts change position relative to each other duringa hoof s impact phase and stance phase. When a hoof makes ground contact during the impactphase as well as when the load is applied during stance phase, the walls 102 and 103 areaffected by the digital cushions 110 change in shape, caused by the frogs 105 pressureagainst the digital cushion 110, to move away from one another in the horizontal direction.During the stance phase, even the sole 104 moves in a vertical direction downward thereby creating the ground contact.

In the wild the horse itself chooses where it wants to go and on what surface it wants to treadon. Since the taming of horses by humans, horses have for example been used as workinganimals, riding animals and the like. This results in people controlling where a horse goes andon what type of terrain the horse must tread on, respectively. For horses, this has resulted in ahigher load and a higher wear on horses' hooves than-horses in the wild have been subjectedto. For example, riding and racing horses* hooves are exposed to high levels of load and wearduring exercise and competition. Normally, a hoof impacts about 2800 times in a harnessrace, and more than 30000 times during normal training session. In order to reduce wear on the hooves, different types of horseshoes which are attached to the hoof with some type of 2 seam (nails, glue), have been developed. Horseshoes are usually of rigid design andmanufactured from steel or other type of metal. A horseshoes rigidity leads to the previouslymentidned natural movements of the parts of the hoof being prevented, or at least moreobstruct. Because a horseshoe also raises the hoof a bit above the underlying surface, thehoof s frog does not receive the necessary contact with the ground. When an unshod horseshoof touches ground, natural mechanical forces occur in the hoof by way of both the frog andthe short pastern bone. These forces press the frog upward from below and provide pressureagain Éhe elastic digital cushion, at the same time the short pastern bone presses against thedigital cushion from above by the horses weight. Together, these forces compel the digitalcushion to widen horizontally pushing apart the hoof s walls. The hoof s widening movementis made possible thanks to the rear of the hoof being open and comprised of an elastic tissue(frog). When a horse is shod a space is created between the frog and the underlying surface.This entails that the frog's purpose during impact being absorbed through the hoof walls andinward toward bones and joints without first being cushioned. This results in the horse being afflicted by different types of health problems such as lameness and other ailments.

A large number of different kinds of pads, designed to be mounted between the hoof and thehorseshoe have been developed to. further reduce the load and wear on a horses hooves. Padsare used for example if the ground is hard, rocky or similar. lf a horse has sensitive hooves, itis common practice to use pads to protect the hoof. Special pads, so-called snow pads, are alsoused in winter to reduce risk of snowballs (ice clumps) and the like from forming under thehoof. Pads are also used in situations where it is desirable to modify a horses step (gait).

Today, pads are used for racing and riding.

Current pads have several problems. For example, they have inadequate elasticity in thehorizontal direction. This means that the central section as well as the frog area of the paddoes not, to any great extent, allow movement relative to the pads slide parts where the padsare attached with seams (nails) to the hoof. The fact that pads have a limited horizontalelasticity means for example that bumps on the ground where the impact occurs will push(press) the pads into the cavity that”s is naturally present under the hoof while the frog pressesthe pads rear part down. This result in the creation of tensile forces in the pad, which pulls atthe seams (nails) (essentially in their transverse directions) also causing the shoe to startloosening. There is also a risk that the shoe may shear off the seams (nails) causing the shore to detach. 3 Known designs of pads also have the problem that they do not provide pressure against thefrog. This in turn means that the frog moves relative to the pad thereby allowing heating tooccur from the movement and friction between the frog and pad. Heat can damage the tissue of the frog.

Existing types of pads also have the problem that they have a low resistance (durability) towear. The horse' s weight and hoof mechanism“s movement result in the pads wearing outquickly in the rear and central parts. The hoof and the shoe then get caught in the worn downdepressions, and the hoof mechanisms natural motion is put out of play. Furthermore, thisshort lifetime result in the horse needing to be shod more often which is costly.

There is also a problem with the pads oozing out (squeezing, pressing out) between the hoof and the horseshoe during the compression of the pad in connection with hoof impact and gait.

Horseshoes and existing pads may also lead to the deterioration of the mechanical pump mechanism that occurs naturally in the hoof and thereby also impair circulation in the hoof.

Another problem with existing designs of pads which are to be used in combination with thehorseshoes is the space at the rear edge of the shoe. The problem consists of providingsuitable support for the different parts of the hoof while minimizing the risk of the pad beingstretched apart by the normal movement of the hoof.

There are also situations where further limitations of the horse's hoof natural movement is notdesired as compared with a traditional whole horseshoe. This is solved with a shortened horseshoe in accordance with the present invention. where the pad-like support device includes protruding segments.Prior Art A number of pad-like designs intended to be placed between a horseshoe and the horses hoofare previously known. For example, a type of pad for horses which includes a support sectionfor a hoof s frog is described in US6672395. This design does not include flexible zones inaccordance with the present invention. Therefore this design has the previously stated problems. Consequently this design differs greatly from the present invention's design WO2006002623 describes a type of pad for horses intended for placement between the horseshoe and horses hoof. This pad includes at its rear a radial groove which limits shock in 4 the impact phase and the stance phase. This design differs substantially from the design in accordance with the present invention.

GB2543 86 describes a variant of a pad, which is designed to be removable in relation to thehorsels hoof. The design includes a wedge-shaped (tapered) support section for the hoof sfrog. In other aspects, the design in accordance with GB2544386 differs greatly from the present invention“s design.

The German design patent DE2020080l2227Ul describes a type of hoof boot which includesa portion located at the frog“s position. This design differs greatly from the present invention's design.

DE698l74l7 describes a variant of a pad for a horse. The design described in DE698l74l7differs substantially from the design in accordance with the present patent application. Forexample the design does not include bellow-like flexible zones which result in the design notbeing able to solve the same problems as the design in accordance with the present patent application.

US4513825 describes a variant of a pad intended to be used between a horse hoof and ahorseshoe. This design differs substantially from the design in accordance with the presentpatent application. For example the design according to its description lacks of the flexibility that would prevent the pad from being stretched apart.

European patent application 10820895.0 describes a variant of a pad-like support devicewhich includes a support section that via flexible zones is attached to the side parts. Eventhrough this design may very well fulfill its purposes, there still exist problems. For examplethe risk of the pad being stretched apart has not been completely eliminated with the designaccording to the description. The flexible zones length of elasticity is most often limited. Thedesign lacks the features that characterize the design of the present patent application. Forexample, the support section in accordance with the described invention consists of one layerof material and not several layers of material such as in the design of the present patentapplication. Furthermore, the design according to its description lacks intermediate material layers in the side parts.

Brief Description of the Concept of the Present Invention The main purpose of the present invention is to eliminate or substantially reduce at least one of the above mention problems.

Brief Description of the Drawings ln the following detailed description of the present invention, reference and references to the following figures will occur. These figures are described briefly in the following ñgure list.Fig. 1 A shows a horses hoof in a view from below without a shoe.

Fig. 1 B shows a horses hoof in a view from behind without a shoe.

Fig. 1 C shows a shod horses hoof in a view from behind.

Figs. 1 D - l E show schematically the frog's affect on the parts of the hoof during hoof movement.

Fig. 2 shows a shod horses hoof with the present invention.

F ig. 3 shows the present invention's top side.

F igs. 4 and 5 show the present inventions topside in perspective.Fig. 6 shows the present inventiorfs bottom side.

Figs. 7 and 8 shows via hidden contours how the material layers in altemative embodiments are divided into sections with intermediate walls.

Figs. 9A and 9G show schematically the function of the bellow-like elastic zones.Fig. 10 shows an alternative embodiment that includes reinforcement.

Figs. 11A - 1 IC show an alternative embodirnent of the invention.

Figs. 12A - l2B show an alternative structure against the ground.

Figs. 13A - l3B show a second altemative structure against the ground.

Figs. 14A - 14C show an altemative embodiment of the invention.

Fig. 15 shows schernaticaily the device with materials with increased adhesive Characteristics against the horseshoe.

Figs. 16A - 16B show an altemative ernbodiment of the invention with spikes.

Fig. 17 shows an exemplifying embodiment of the toe caulk.

Detailed Description of the Invention With reference to Figure 2, a shod horse hoof is shown schematically, as seen from the backof the horse, which is equipped with a pad-like support device l in accordance with thepresent invention. The support device may altematively be referred as a pad. In figure 2 thesupport device 1 is attached between a horses hoof 2 and a horseshoe 3. The pad-like supportdevice 1 is attached to the horses hoof 2 together with the horseshoe 3 in the usual mannerwith seams (nails) or glue. Altematively, the pad-like support device 1 may be attached withanother for the purpose suitable method of attachment. The shoeïs 3 size and extension alongthe hoof s shape may vary within the scope of the invention. lt is also conceivable that certain embodiments are used without shoes 3.

In the following description the terms “front part” and “front edge” of the support device and“rear part” or “rear edge” of the support device will be described. Furthermore, the terms“topside” and “bottom side” of the support device will be designated. Use of the front edgeand front part means the edge, or part of the support device, that in the horizontal direction is closer to the horses head than the rear edge, rear part is.

With reference to Figs. 3 to 10, the present support device is shown in more detail. The pad-like support device l has a topside A4 and a bottom side 5. The topside 4 is intended to beplaced (up) against the hoof 2 and the bottom side 5 is intended to be attached (down) againstthe horseshoe 3.

The support device 1, according to the preferred embodiment, includes at least one first sidepart 6, at least one second side part 7, at least one middle part (center part) 8 and at least onesupport section 9 for the horse hoof s frog. Unique to the present invention is that it includesat least one first flexible zone 10 and preferably at least one second flexible zone 11. In theexemplary embodiment the first flexible zone 10 and the second flexible zone 11 each preferably include at least one front zone part 12 and at least one rear zone part 13.

The first side part 6 and second side part 7 are connected with each other (each side partmerges into the other side part) in the pad-like devices front part 14. The material of the firstside part 6 and the second side part 7 is preferably, essentially wedge-shaped along its length.In alternative embodiments, it is conceivable that the first side parfs 6 and the second sideparfs 7 thickness may vary along each side parts length in the longitudinal or transverse direction. Furthermore, it is also conceivable that the first side part 6 and the second side part 7 7 are of an even thickness along their length. The topside 4 of the side parts 6 and 7, facingthe horse hoof s bar of wall, is of a flat design. The bottom side parts 6 and 7 are essentiallyof flat design. The bottom side of the parts 6 and 7 constitutes the contact surface against the horseshoe.

In a further embodiment of the present patent application, the support device has a slightwedge shape from the support devices front edge to support devices rear edge. The pad-likesupport device may successively become thicker from the front edge to the rear edge. Thepad-like support devices wedge shape may also be divided into sections of different wedge shapes. The present design has thus a slight wedge shape.

The pad-like support devices 1 middle part (the center part) 8 protects the hoof (the sole ofthe hoof) against damage from sharp and jagged objects such as rocks, glass and the like onthe underlying surface. The middle parfs 8 topside is preferably somewhat elevated relativeto the first side parfs and the second side part“s topside. The middle part 8 is comprised of asubstantially thinner material than the material in the side parts 6 and 7. The first flexiblezones 10 and the second flexible zones 11 flexibility allows the middle part 8 to move in avertical direction relative to the side parts 6 and 7. Furthermore the side parts 6 and 7 areallowed to move in a horizontal direction relative to the middle part 8. The middle parfscontact and adherence with the horse hoof s sole is thus increased. The middle part“s mobilityallows the middle part to move downward thus creating an effective percussion to keep icefrom building up under the hoof in winter. During summer the middle parf s movement alsoallows for increased compression of soil under the horse hoof s sole whereby better hoof traction against the ground is achieved.

The support section 9, for the frog, is placed in the pad-like support devices rear part betweenthe first side part 6 and the second side part 7. The support section consists of at least one,relative the bottom side of the first side part 6 and the bottom side of the second side part 7,downwards protruding body (pillow) 16, or the like. Support section 9 has the task of being anextension of the frog (in vertical direction) when the horse is shod. The void (space) that iscreated between the frog and the ground when the horse is shod (in comparison to when thehorse is not shod) is essentially filled by the support section 9. The support section 9 therebylimits or alleviates the unfavorable motion in the vertical direction that the frog receives fromground impact (when the horse is shod). Therefore support section 9 allows the frog during the hoof s ground impact to affect the digital cushion in a manner that essentially matches the 8 manner of an unshod horse. With the pad-like support device in accordance with the present invention, a shod horse essentially receives the same dampeníng effect that an unshod horsehoof has.

Preferably, the topside of support section 9 is essentially flat (even) and slightly elevatedrelative to side parts' 6 and 7 upper flat surface. Support section 9 rnerges in the forwarddirection into the middle part 8. The support section's contact surface against the ground haspreferably an arc/arch-shape, round or similar form along all or part of the bottom side's(contact surfacds) length. The support section 9 may in alternative embodiments be wedge-Shaped, with the thicker part at the rear part of the pad-like support device and the taperedsection facin g the direction of the middle part (the support sectionfs 9 thickness decreasestowards the middle part 8). ln alternative embodiments, the support section 9 may be of another form suitable for the purpose.

Preferably, the body (pillow) 16 on its bottom side is fitted with at least one contour which inthe exemplified embodiment consists of several longitudinal grooves (tracks) 17 (in the'figures nine grooves are shown) in the pad-like support device's longitudinal direction. Thegrooves stretch along the entire or part of the support section's length. Preferably, the heightof the grooves decreases in the forward direction. In alternative embodiments, the contour may be of another for the purpose suitable contour.

A unique feature of the present invention is that it includes at least one first flexible zone 1.0and preferably also at least one second flexible zone 1 1. The first flexible zone 10 includes atleast one material layer 18 that joins the first side part 6 with the middle part (center part) 8and the support section 9. The second flexible zone 11 includes a material layer 19 that joins the second side part 7 with the middle part (center part) 8 and the support section 9.

The flexible zones 10 and 11 stretch along all or part of the pad-like support device's length.In the exemplitying embodiment, the first flexible zone 10 and. the second flexible zone llextend along a portion of the pad-like support device's l length. Preferably, the ilexible zones10 and 1 1 extend from the front part 14 (toe part) to the rear edge of the pad-like supportdevice 1. Preferably, the first flexible zone 10 and the second flexible zone 1 l each include afront zone part 12 and a rear zone part 13. Within the scope of the invention the length of the zones ll and 12 may vary. 9 The material layer 1.8 of the first flexible zone 10 and the inaterial layer 19 of the secondflexible zone ll are bellow-shaped (accordion-shaped) in the pad-like support device's 1transverse direction. Preferably, the bellow-shaped section encompassed in the rear zone part13 includes at least one first inverted (seen from the top side) U-shaped section 20. Thebellow-shaped section included in the front zone part 12 includes at least one ttpriglit U-shaped section 21. Alternatively, one or both of the U-shaped sections 20 and 21 may haveanother for the purpose suitable form, such as a V-shaped section, or a section which isshaped entirely or partially as a sine wave or the like. Alternatively, the bellow-shapedmaterial layer 18 and material layer 19 :may be designed in another for the purpose suitable manner with a form suitable for the purpose.

On the bottom side 5 of the pad-like support device 1, the U-shaped section 20 included in therear zone part mergers into a groove 22 in the front zone part 12. On the bottom side 5 of thepad-like support device 1., the U-shaped section 21, in the front zone part 12, mergers into the rear zone part 13.

The flexible zones' 10 and ll height in the vertical direction (the U-shaped sections' lieight orthe wave-Shaped amplitude in the vertical direction) decreases essentially in the directiontowards the front part 14 (the toe section). Preferably, the tlexible zones are formed so thatthey decrease in height, in the forward direction, until they are entirely smoothed out oressentially entirely smoothed out. This design reduces the risk of flexible zones 10 and llstaying in the extended position. The U-shaped section (flexible zone) is turned upward, thedesign as such, provides more vertical movement without rubbing against the rearmost part of the hoof s (and shoe's) heel buttress.

The material layer's 18 thickness in the first flexible zone 10 and the material layer's 19thickness in the second flexible zone 11 are less (thinner) than the material thickness of the side parts 6 and 7.

The material layer of the flexible zones 10 and ll connects to the side sections in the lowerhalf (vertically) of the side parts 6 and 7. Preferably, the inaterial laye;r of the flexible zonesconnects to each side sections' bottom edge 23 (in the lower part of the material). Preferably,the material layer of the flexible zone oonnects to the support section 9 at its bottom half (vertica1ly)which in the figures is illustrated by position 24.

Thanks to the bellow-like design of the material layer in the flexible zones, the support device9 will flex to a different extent relative to the side parts in the horizontal and verticaldirections. The inaterial layers 18 and 19 in the flexible zones 10 and 11 are preferably more than a third thicker than the material layer's thickness in the middle part.

The material layer of the flexible zones 10 and 11 coniiects to the side sections in the lowerhalf (vertically) of the side paits 6 and 7. Preferably, the material layer of the flexible zonesconnccts to each side sections' bottom edge 23 (in the lower part of the inaterial). Preferably,the material layer of the flexible zone con:nects to the support section 9 at its bottom half (vertically) Which in the figures is illustrated by position 24.

Thanks to the bellow-like design of the material layer in the tlexible zones, the support device9 will flex to a different extent relative to the side parts in the horizontal and verticaldirections. The material layers 18 and 19 in the flexible zones 10 and. 11 are preferably more than a third thicker than the material layer's thickness in the middle part.

The present inventioii follows the hoofs and the frogfs movement outward, inward, upwardand downward regardless of movement differences and angular differences between the hoofstwo side parts. This is especially advantageous in conjunction with use of the inventor's earlier inveitted and patented horseshoe which is sold under the brand name of Razer. lt has unexpectedly been discovered that a decreased risk of the pad being stretched apart isachieved if the support section 9 includes a first inaterial. layer 25 constituting the surfacelayer on the topside of the support section 9 and at least one second material layer 26constituting the surface layer on the bottom side of the support section 9 and at least oneinteimediate, relatively softer material layer 27 positioned between the first material layer 25and the second. material layer 26. The first (top) layer of material 25 and the second (bottom)layer of material 26 are joined together in one layer at the merging point 28 to the flexiblezones 10 and l 1. This design achieves the unexpected technical effect that support section's 9width increases during the stance phase. The increased width of the support section 9 isachieved by the inteirmediate layer 27 being compressed (becoming thinner) and that thedistance between the merging points 28 thereby becomes longer. The increased width of thesupport section 9 means that the risk of being stretched apart decreases. ln one prefenedembodiment, the first material layer 25 and the second material layer 26 have a hardness with a shore number which exceeds 87 in the material layer and that the interinediate material layer 11 27 has a hardn.ess with a shore number below 80. A nearly optimal performance is achieved ifthe shore number is 70. ln alternative enibodiinents, however, it is conceivable that one ormore layers of material 25, 26 and 27 have a shore number different from the ones inentionedabove. The harder material in the first layer and the second layer achieve the characteristic of iinproving wear resistance during use.

In variants of the alternative embodiment, the first side part 6 and the second side part 7include at least one .first material layer 29, which forms the surface layer on the topside of theside parts 6, 7 and at least one second layer of material 30 which forms the surface layer onthe bottom side of the side parts 6, 7 and at least one intermediate material layer 31 positionedbetween the first material layer 29 and the second material layer 30. ln one preferredembodiment, the first material layer 30 and the second layer of material have a hardness witha shore number exceeding 87 and that the intermediate material layer 3l has a hardness with ashore number below 80. The harder material in the first layer and the second layer have thecharacteristic of improving wear resistance during use. A nearly optimal performance isachieved if the shore number of the intermediate material layer 31 is 70. This design achievesthe technical effect of reducing vib:rations that arise by a shoe being attached to the pad andthe horse hoof. Vibrations arise because the back part of the shoe is not attached with seamsand this causes vibrations which may propagate to the horse's hoof and cause damage (whichmay be difficult to find the cause of). ln alternative embodiments, however, it is conceivablethat one or more of the niaterial layers 29, 30 and 3 have a shore number that differs from the OIICS IHCIIÜOIICÖ abOVC.

The relatively Softer material layer 31 preferably extends from. a position just behind theposition of the rear seam of the shoe when the shoe and the support device are connected tothe horse's hoof. The position may also be defined as just behind the widest part, in the hoofstransverse direction, of the pad. Referring to Fig. 7 and 8, is shown, via hidden contours(contours that are not normally visible), how material layer 27 in a preferred embodiment ispartitioned into at least two sections 32 (pockets or the like). These sections 32 are partitionedby at least one intermediate wall 33 (partition or the like) extending between the first materiallayer 29 and the second material layer 30. ln the exemplifying embodiment shown in thefigures, the material layer is divided into eight sections with inte:rmediate walls. The number of sections and intermediate walls may vary within the scope of protection. 12 Referring again to .Fig. 7 and 8, is shown, via liidden contours how material layer 31 in onepreferred embodiment is partitioned into at least two sections 34 (pockets or the like). Thesections 34 are paititioned by at least one intermediate wall 35 (partition or the like) extendingbetween the first material layer 29 and the second material layer 30. In the exemplifyingembodiment shown in the figures, material layer 31 is divided into four sections 34 with intermediate walls 35. The number of sections 34 and intermediate walls 35 may vary within the scope of protection.

In alternative embodiments it is conceivable that the hardness of the intemiediate materiallayer 27 in the support section 9 differ from the hardness of the interrnediate material layer 31in the side parts 6 and 7. It is further conceivable that at least one section 32 of material layer27 has a different hardness than at least one second section 32 of material layer 27. In acorresponding manner, it is further conceivable that at least one section 34 of material layer31 has a different hardness than at least one second section 34 of material layer 31. It is thusconceivable that each respective material layers' sections include multiple hardnesses(softnesses) than two up to the point that each section in each respective material layer 27 and 31 have a specific hardness (softness) which differs from the other sections.

The intermediate walls also have the technical effect of limíting, to some degree, changes in shape (form) in the rear area of the side parts 6 and 7 during a strain on these from the horse'shoof In an alternative embodiinent, at least one of the intermediate material layers 27 and 3l maybe comprised of a space, preferably enclosed, which contains at least one type of fluidicmedium such as gas, combination of gases such as air, some type of liquid or mixture of liquids or a combination thereof. ln alternative embodiments, at least one of the material layers 29 and 30 in the side parts 6and 7 are provided with one or more apertures in the direction toward the intermediate layerofa material of a relatively softer material that is included in the intermediate layer. Theapertures have the technical effect of it improving the nianufacturiiig process by allowing theinfusion of the :relatively softer material of the intermediate layer. The aperttires allow therelatively softer material of the intermediate layer to stretch through at least one of thematerial layers 29 and 30. This has also unexpectedly been shown to have a positive effect associated with the application of adhesive or similar to the support device. The relatively 13 harder materials glossy surface causes glue (adhesives) and the like to adhere more poorly to this material than to the relatively Softer material.

Referring to Fig. 9A and 9B, the function of the 'llexible bellow-Shaped zones 10 and ll isschematically shown. In the exemplary embodirnent, the flexible zones have a bellow-shape.lt is though conceivable that the shape differs in alternative embodiments. The bellow-Shapedzones 10 and l l., according to the present invention, have a design that essentially allows for amaximum elastic spread of the support section relative to the side parts to be achieved. Thebellow-Shaped design :includes (in an unaffected position) at least one essentially upwardlydirected vertical section 36, at least one essentially vertically downward directed section 37and an arc-shaped section 38 which connects the first essentially upwardly directed section 36with the essentially downwardly directed section 38. A further unexpected technical effect isachieved by the material layer in the downwardly directed section 37 being Secured in the lower half of the support device 9.

Referring to Pig. 9A, the pad~like support device is shown in its initial position. Referring toFig. 9B, a variant is shown in which the underlying surface has affected part 6 in the upwarddirection. The flexible zone 10 allows part 6 to flex upward without part 6 essentially beingmoved in the direction towards the support device's 1 center. ln Fig. 9B, the flexible zone hasbeen partially stretched out. Pig. 9G shows the flexible zone in an essentially fully extendedposition. ln a further stage (not shown in the figures), when the relative height in the verticaldirection (in the figures) between part 6 and the support device's attachment point increasesfurther, the fully extended flexible zone will cause part 6 to begin to twist (wrench) about thepoint of attachment of the bellow of the support section. The design should be compared withpreviously known designs of pads, where tvvisting of the corresponding parts such as part 6and/or part 7 (in this patent application) starts directly or substantially directly. Knowndesigns have nowhere near, or essentially nowhere near, a comparable flexibility as the designof the present patent application. During use, the design according to the present invention,allows mutual movement of the parts inherent in a hoof. Furthermore, the iilexibility decreasesthe risk of the seam being pulled apart by the pad as is the case for known designs of pads. Anequivalent functionality, tlexibility, is also applicable for the side part 7 connected via zonell. An equivalent functionality is essentially also achieved during a dovvnward movement of the side part 6 and 7. 14 Referring to Fig. 10, an alternative embodiinent of the support device is shown where it isprovided With at least one first reinforceinent 39. In the shovm embodirneiit, the supportdevice includes at least one first reinforcement 39 and at least one second reinforceinent 39.In the exemplary embodiment, reinforcemerit 39 extends from the pad-like support device inthe direction towards the front edge 14 of the pant-like support device. ln alternativeembodiments, the reinforcements may have a different extension. The reinforcements havethe technical effect that they reinforce the center section and hold up the support section in thecase where at least one hole is made in the center section. A hole may preferably be :made i.faccess to the underside of the hoof is necessary when the support device is connected to the hoof Reterring to F igures llA to 11C, an alternative embodiment of the present invention is showncomprised of at least one protruding (downward sticking, downwardly extending) segment(part, body) 40 which covers all or part of the bottom side of the pad-like support device”s lside parts (the part of the side parts which in use lies against the horse hoofs quarter parts).The protruding segments 40 may be constituted by the material in parts of the pad-likesupport device being thick.er than the other parts of the pad-like support. The protrudingsegments (body) 40 extend a distance S from the plane P on the pad-like supporfs bottomside 5. The distance essentially corresponds to a horse shoe”s thickness (height in use). Thedistance (height) may also be smaller or larger than a horse shoe”s thickness. The horseshoe ispreferably a shortened horseshoe. ln alternative embodiments, the pad-like support devicemay be used vvithout a horseshoe. The distance S may vary over the extension of the segment.The protruding segment 40, or the protruding segments 40 are provided with a structure 41 _, orstructures 41 on the bottom side which. is or are intended to provide grip on the ground”ssurface (create grip against the surface). ln the exemplifying einbodiment, the structure 41consist of a plurality of longitudinal grooves (in the figures, a plurality of grooves) 42 in thepad-like support devices longitudinal direction. The grooves 42 extend the entire or part ofthe segment's 40 length. The grooves 42 depth (height) are all essentially as deep or inalternative embodiments may be of decreasing depth in the forward direction. In thisernbodiment, the grooves” 42 shape are V-shaped or U-shaped or essentially V-shaped or U-shaped. In alternative embodiments it is conceivable that the grooves 42 have a differentshape that is suitable for the purpose. Depth of the grooves may also vary over their stretches.The structure of the grooves according to the figures has the effect of controlling the hoof in the direction that the hoof points When the hoof slides against the ground during landing of the hoof against the ground. T he grooves also have a dampening effect, and the grooves allow for less material being required for the production of the pad-like device. The shown groove structure is particularly useful on the horse's rear hooves.

Figs. 12A - 12C and 13A - l3C show alternative embodiments of the structure 41 of theprotruding segmenfs 40 contact surface (Structures) 41 against. the ground. The Structures 41extend over the pad-like support clevice”s protruding segments 40 (at quaiter parts), and in theexemplifying embodiinents also over the support section 9. ln. the shown embodiments thestructure 41 consists of grooves 43 directed :in the pad-l:ike support devices transversedirection. In this embodiment, the grooves 43 are essentially V-shaped or U-shaped. Inalternative embodiments it is conceivable that the grooves have a different shape suitable for the purpose.

In the exemplityiiig embodiment, the grooves 43 of the contact surfaces have a form whichincludes a V-like shape formed of at least one .first flank 44 and at least one second flank 45.By definition, the respective grooves .frst flank 44 is located closer to the toe portion than. thesecond flank 45. ln the ernbodiment shown in F igures 12A - 12C, the front flank has a greaterangle V1 relative to the bottom side of the pad-like support device than the rear flank angleV2 to the bottom side of the pad-like support device. The structure is especially useful whenthe pad-like support device is connected to the horse's hooves. The narned structure meansthat the lioofslides at impact with the ground without braking the hoof to an excessive extent.The structure provides cushioning and allows for less material being required for the production of the product.

In the embodiinent shown in F igs. 13A - 13C, the front flank has a smaller angle V relative tothe bottom side of the pad-like support device than the rear flank angle V2 to the bottom sideof pad-like support device. The structure (braking) is especially useful when the pad-likesupport device is connected to the horse's front hooves. The structure means that the hoof isbraked at impact. The structure results in a faster reversal of the hoof, which allows for afaster step. The structure provides further dampening and means that less material is requiredto make the pad-like support device (product) than without them. Älln alternative embodimentsit is conceivable that the structure 41 is a combination of the exemplifying Structures or variants of another for the purpose suitable structure (shape, shapes). 16 Referring to Figs. 14A to 14C, an alternative embodiment of the support device Where theside portions for all or part of its length from the quarter parts to the toe portion is shownincluding at least one protruding (downward stretching) segment (part, body) 46. ln theexemplifying embodiment the protruding segrnents 46 extend from horse shoes quarter partsin the forward direction toward the toe portion. In an alternative ernbodinient, the protrudingsegment may also extend over the whole or part of the toe portion. This embodiment may beused with or without a horseshoe. The segments 46 may cover all or part of the side partswidth. The protruding segments (body) 46 extend a distance (height) S2 from the plane P onthe pad-like support device's bottom side 5. The distance (height) S2 corresponds essentiallyto a horse shoes thickness (height in use). The distance (height) S2 may also be sinaller' orgreater than a horse shoe°s thickness. The distance S2 may also vary across the segmenflsexterisioii (stretch). The protruding segments may be constituted by the material in parts of thepad-like support device being thicker than in other parts of the device. The structure 47 of theprotruding segmenfs contact surface against the ground may vary within the scope of thepresent invention. The structure 47, against the ground, may have the same shapes as that previously described regarding structure 41.

Figs. 14A to 14C show holes 48 for horse shoe nails which include at least one intermediatewall (partition) 49. The interrnediate wall 49 divides the hole into at least one first section 50and at least a second section 51. In the figures holes 48 are shown that are separated by threeintennediate partitions 49 which divide the hole in four sections. The number of sections mayin alternative embodiments be more or less than four (as shown in the figures). The design ofthe partitioned hole 48 permits the pad-like support device to be adapted to the hoof sizewithout the holes” 48 function as recipients of the nail be impaired. The adaptation of the pad-like support device l after the hoof size is done by a part, or parts, of the pad-like supportdevice side parts, or other parts being removed, for example by cutting, rasping or another for the purpose suitable method and/or technique.

In altemative embodiments of the present invention as shown in Figure 14B where it is usedwith open toe. With open toe means that the toe component is completely or partially missingor deleted. The material of the pad-like support device allows the toe portion to be cut away.In alternative embodiments it is conceivable that the pad-like support device receives another for the purpose suitable shape than the shape shown :in the figure. Preferably, the 17 reinforcements 39 are not cut away, but the .reinforceinents 39 are used to hold the frog positioned relative to the other parts of the pad-like support device such as side parts 6 and 7. ln alternative embodiments it is conceivable that the present invention includes a means suchas a plate 52 or the like which extends over all or part of the toe portionïs stretch. The plate”s52 height, thickness may vary within the scope of the present invention. The plate 52 ispreferably of aluminum or of another for the purpose suitable metal, alloy or the like. ln theexemplifyiiig embodiment, the plate 52 may :include holes (not shown in figures) adjacent tothe ends, which in turn is cast fixed to the side parts. The holes cause the material to penetrate into them and hold the plate fiirnly against the fixed side parts.

Referring to F ig. 15, a variation of the present invention which includes at least one surface(portion) 53, insert or the like, comprised of materials with increased adhesive characteristicsis shown. The material with the adhesive properties allows improved properties when the shoeis connected, such as glued, to the pad-like support device. The size of the surface 53 whichcomprises the :material with increased adhes:ion may vary within the scope of the invention.The material with increased adhesion may be comprised of a material with a suction effectthat is a material that takes up adhesive, glue and the like to higher extent than polyurethane.The material with the greater adhesive capacity may be comprised of a material which whollyor partially embedded in the other material in all or part of the side portions and/or the toeportion. The material with increased adhesive capability may be a felt material. The niaterialwith the greater adhesive capacity may be comprised of nylon or other suitable material or material combinations.

Referring to F igs. 16A - l6B, an alternative embodiment of the pad-like support device isshown which includes, or is provided With studs (cleats, spikes) 54 or the like. The number ofstuds 54 may vary within the scope of invention. ln the exemplifyirig emhodiment, thenumber of studs 54 is six. In alternative embodiments it is conceivable that the designincludes one, two, three, four, five, seven or more studs 54. The studs 54 may be integrated or connected to or at the pad-like support device.

Fig. l6B shows a cross-section view of the pad-like support device. ln the cross-section viewthe stud (studs) 54 is (are) connected to the relatively harder material layer 55. The stud 54, orstuds 54, are also preferably inovably connected to the relatively softer intermediate layer of material 56. The stud 54, or studs 54, extend then through the second layer 57 of relatively 18 harder material. ln the exemplifying enibodiinent, the studs 54 are movable :relat:ive to theother relatively harder material layer 57. Figure 16A shows that at least two studs areconnected to at least one plate (attachment plate) 58 which holds two or more studs. The plate58 is comiected to (at) the first relatively harder material layer (the plate of Figure 16A hasbeen made visible by reason of illustration; it is hidden by the second layer of material innormal use). The design means that the stud 54 is pushed out a stretch when the relativelysofter material 56 is compressed. This means that the stud 54 does not slow down the hoofsliding against the ground when the hoof lands on the ground (by the stud does not protrudingout at this stage). When. the hoof stops slidin.g, the force against the ground causes the stud 54to be partially ptished out and create grip against the surface. The design is especiallybeneficial to use on tracks, such as racetracks or other courses, which include asphalt (or other substrates) coated with a layer of gravel or similar.

The stud/studs 54 ofthe exemplitying embodiment have a cross-section that is triangular oressentially triangular. In alternative embodiments, the studs 54 may have a cross-section witha different shape suitable for the purpose. T he material or combination of materials that make up the stud 54 may also vary within the scope of the invention.

In an alternative embodiment shown in F ig. 17, the present pad-like support device l isprovided with at least one toe caulk (lip) 59 at the pad-like support device”s front edge. Thetoe caulk 59 has the technical effect of preventing the pad-like support device 1 folding downwhen the hoofimpacts the ground. The toe caulk 59 prevents gravel, sand, soil or similargetting between the hoof and the pad-like support device. The toe caulk may be used on thepad-like support device 1 with or without the shoe (which has a toe), and in combination with the named Structures on the contact surfaces.

The material of the pad-like support device l consists preferably of a material that exhibits agood structural strength while at the same time having elastic properties. Suitably,polyurethane or another material with similar Characteristics may be used. in the pad-likesupport device l (an exemplifying material consist of Polyurethane Bayer 390X with shorenumber of 93). lt is conceivable that another for the purpose suitable rnaterial be used in the pad-like support device. The pad-like support device may for example be manufactured by injection molding 19 or die castiiig. These production. methods are previously known and this is why these production methods are not described in more detail in this patent application.

In the detailed description of the present invention, design details may have been omittedwhich are apparent to personshskilled in the art. Such obvious design details are included tothe extent necessary so that the proper and full performance of the present inventioii is achieved.

Even if some preferred embodiinents have been described in detail, variations andmodifications within the scope of the invention may become apparent for specialist i11 thefield and all such are regarded as falling within the scope of the following claims. Forexample, in alternative embodiments it is conceivable that the central portion include at leastone through hole. It is conceivable that the pad-like support device's center portion in itsentirety is a hole. The first side part and second side part have essentially the same thicknessover their stretches. ln alternative embodiments it is conceivable that the support device maybe comprised of several parts which are joined in a manner suitable for the purpose. lnaltemative embodiments it is conceivable that the holes may be constituted by grooves or be a combination of grooves and holes, The contact surfaces shape allows the pad-like support device to preferably fit to more thanone shoe size. The side parts 6 and 7, bottom side may further be provided with holes(airpads). The holes are preferably not through holes but consists of blind holes. The holescross sectional. shape may be oval, round or another for the purpose appropriate section. Theholes may also have different cross-sectional area. The holes are intended to :increase thecushioning characteristics of the material. The holes also minimize the risk of material beingpressed out between the hoof 2 and the horseshoe 3 in conjunction with hoof impact with theground and during gait movement (during the impact phase and the stance phase). Thereduced risk of material being pressed out depends on the material of the first side portion 6and the second side portion 7 can be compressed into the bores whereby the risk of material being pressed out between the hoof2 and the horseshoe 3 decreases. ln alternative embodiments, the pad-like support device includes at least one edge extendingover all or part of the toe portion. The edge has the technical effect of preventing the ingress of sand and the like between the hoof and the pad-like support device.

In alternative embodiments the pad-like support device”s central portion 8 consists of or iscomprised of a crimping (shrinkiiig) material (not shown in figures). The material may be a material which shrinks and thus may be adapted to the respective horse's hoof.Advantages of the Invention A number of advantages are achieved with the present invention. 'The main advantage of thepresent invention is that at least one of the above disadvantages are eliminated or reduced.The pad-like support device°s dampening (resilient) function means that the horse hoof isgiven a function at impact cornparable to the function at impact a hoof has when the horse isunshod (no shoe). A further advantage is that the risk of penetration is essentially eliminated.A further advantage of the present invention is that the flexible zones decreases drawn againstthe shoe and seam when rocks and uneven ground presses the middle portion in the upwarddirection. It is a further advantage that an effective dampening of the frog"s impact isachieved wherein a reduced load against the horse's hoof, ligainents and j oints are achieved. ltis a further advantage of the present invention. to improve circulation. By the frog”s supportessentially following all the frog°s movements friction (rubbing) that occurs between the sole and the frog on existing soles is minimized.

Claims (1)

1. f,. zvâsífg? 21 Claims

   1. Pad-like support device (1) comprised of a top side (4) and a bottom side (5), said topside (4) during use being suitable to be placed up against and attached to a horse”shoof (2) and that the bottom side (5) has a plane surface (P) against which a shortenedhorseshoe (3) is suitable to be attached, and that the pad-like support device (1) isfurther comprised of at least one first side part (6), at least one second side part (7), atleast one middle part (8) and a support section (9) for the frog, and at least one firstflexible zone (10) and at least one second flexible zone (1 1) whose flexible zones (l0,l 1) extend. essentially along the pad-like support device”s (l) longitudinal direction,resulting in that the support section (9) and the middle part (8) are flex:ibly arranged inrelation to the first side part (6) and the second side part ( 7), said support section (9)comprised of at least onefirst material layer (25) that constitutes the surface layer onthe top side of the support section and at least one second inaterial layer (26) thatforms the material layer on the underside of the support section (9) and that at leastone intermediate material layer (27) positioned between the first material layer (25)and the second material layer (26) is ofa relatively' softer material than the material ofthe first material layer (25) and the second material layer (26) and that the first sidepart (6) and the second side part (7) are comprised of a first material layer (29) thatconstitutes the surface layer on the top side of the side parts (6, 7) and at least onesecond material layer (30) constituting the stirface layer on the underside of the sideparts (6, 7) and that at least one intermediate material layer (3 l) positioned betweenthe first material layer (29) and the second material layer (30) is of a relatively softermaterial than the material of the first material layer (29) and the second niaterial layer(30) characterized in that the first side part (6) and the second side part (7) are eachcomprised of at least one protruding segment (40) which are positioned on the bottomside (5) under the hoofs quarter and, whose segmenfs (40) bottom side, thatcompletely or partially rest on the ground when the hoof impacts the ground, whichsegment (4) extends downward a distance (S), approximately corresponding to thethickness of the shortened horseshoe, from the plane (P) over the entire or parts of theside parts (6, 7) surface stretch (S) and that the material layer (31) is partitioned in atleast two sections (34) by at least one intermediate wall (35) that stretches between the first material layer (29) and the second material layer (3 0). 22 _ Pad-like support device (1) according to claim 1 characterized in that the protruding segments (40) stretch along all or a part of the surface of the pad-like support device”s(1) bottom side (5). . Pad-like support device (1) according to one of the previous claims characterized in that the protruding segments (40) extend over parts of the pad-like support device”s (l) surface and all or part of the distance up to the toe portion. . Pad-like support device (1) according to at least one of the previous claims characterized in that the pad-like support device (1) is comprised of at least one partsurface (53) against the shoe which is of a material of relatively greater adherent properties than the material in the rest of the top side of the pad-like support device(1)- . Pad-like support device (l) according to at least one of the previous claims characterized in that the pad-like support device (1) includes at least one or morestuds (54). . Pad-like support device (1) according to one of the previous claims characterized in that the pad-like support device (1) is comprised of holes (48) for horse shoe nails,whose holes (48) are comprised of at least one partition (49) which divides the hole (48) into at least a first section (_51) and at least a second section (52). . Pad-like support device (1) according to at least one of the previous claims characterized in that the material layer (27) is divided into at least two sections (32)of at least one intermediate wall (33) that stretches between the first material layer (25) and the second material layer (26). . Pad-like support device (1) according to at least one of the previous claims charactcrized in that the bottom side of the segments include grooves Which extend in the longitudinal direction. . Pad-like support device (1) according to at least one of the previous claims characterized in that the bottom side of the seginents include transverse grooves. 23

   10. Pad-like support device (l) according to at least one of the previous clahns charactcrized in that the pad-like device (1) includes at least a toe caulk.