CA1305427C - Horseshoe assembly - Google Patents
Horseshoe assemblyInfo
- Publication number
- CA1305427C CA1305427C CA000507428A CA507428A CA1305427C CA 1305427 C CA1305427 C CA 1305427C CA 000507428 A CA000507428 A CA 000507428A CA 507428 A CA507428 A CA 507428A CA 1305427 C CA1305427 C CA 1305427C
- Authority
- CA
- Canada
- Prior art keywords
- projection
- side wall
- leg
- hoof
- horseshoe assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Orthopedics, Nursing, And Contraception (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An improved horseshoe assembly of the type including a body made of elastomeric material, an inclined side wall portion for snugly receiving a hoof of a horse leg in the hollow space as defined by the body and the side wall portion and a band extending across the body in the inclined state to firmly hold the hoof. An engagement hole formed at the free end of the band is fitted onto a first engagement protection which is located forwardly of a second engagement projection which serves to support the lower edge of the band in the inclined state, An angle formed by the side wall portion and the body at the fore part of the latter is determined within a range of angle comprising an inset p angle plus 5 degrees. To integrally connect both the free ends of the body the latter is provided with a bridge member at the rear part which extends therebetween, A cutout formed at the central part of the bottom of the body has a projection which is projected upwardly in the inclined state to enter a recess on the bottom of the leg.
An improved horseshoe assembly of the type including a body made of elastomeric material, an inclined side wall portion for snugly receiving a hoof of a horse leg in the hollow space as defined by the body and the side wall portion and a band extending across the body in the inclined state to firmly hold the hoof. An engagement hole formed at the free end of the band is fitted onto a first engagement protection which is located forwardly of a second engagement projection which serves to support the lower edge of the band in the inclined state, An angle formed by the side wall portion and the body at the fore part of the latter is determined within a range of angle comprising an inset p angle plus 5 degrees. To integrally connect both the free ends of the body the latter is provided with a bridge member at the rear part which extends therebetween, A cutout formed at the central part of the bottom of the body has a projection which is projected upwardly in the inclined state to enter a recess on the bottom of the leg.
Description
~3t~4~
HORSESEIOE ASSEMBLY
BACKGRoUMD O~ TIIE INVENTIUN
1. ~IE~D OF lrIIE I~ENTION
_ . . _ ~ he present invention relates to a horseshoe assembly and more particularly to improvement of or relating to a horseshoe assembly made of elas-tomeric ma-terial.
HORSESEIOE ASSEMBLY
BACKGRoUMD O~ TIIE INVENTIUN
1. ~IE~D OF lrIIE I~ENTION
_ . . _ ~ he present invention relates to a horseshoe assembly and more particularly to improvement of or relating to a horseshoe assembly made of elas-tomeric ma-terial.
2. DESC~IPTION O~ TME ~ R A~T
. _ ~. . _ It has been a common practice long sice to put horsesh-oes made of steel on hoofs for all horses including racing horces and others in order to probect them from cracking or accicodental injury. A typical conventional method of putting the horseshoes on the hoofs is practiced by way of the steps of correctly locating one of them on the bottom surface of -the hoof to fix it thereagainst, driving nails n-to the hoof from the bottom and then bending a projected part of the nails which penetrates -through the hoof and pro3ec-~s above the upper surface of the hoof~
However, it has b~een pointed out as drawbacks inherent to the above-mentioned conventional method of fixing the horseshoes onto the hoofs that bhere is a necessity for removlng nails from them and then renail them at every time when they are replaced with new one~, thus resulting in : ~ :
many nail holes be~ng left through the hoofs. Thi~ leads to no space being lef-t for renailing through the hoof or :: :: ~ ~ : : :
:
~ ' 1~3~ 7 replaced horseshoes being easy to drop down therefrom during running.
Particularly9 in the case of a racing horse it is common that a horseshoe of the type having a relatively wide width that is generally called "flat shoe" is fixedly put on the hoof using nails while it is still red hot. On the day of horse racing, however, it is a necessity for replacing the flat shoes with other ones made of light alloy material such as aluminum alloy having a relatively narrow width that are generally called 'rrace shoe".
Consequently, it is inevitable that replacing operations in the order of "flat shoe race shoe - flat sho~" are repeated for a considerably short period of time. This ca,uses a number of nail holes to be pierced through -the hoof. In the extreme case it is lmpossblè to fit horseshoes onto the hoofs any longer and it is often found that some hoo~ drops during race~
Further, due to the fact that the conventional horse-shoes are made of metallic material and has no elasicity it is found that the legs hurt because of exposure -to shock caussd during swift running and injuries occur due to kicking ac~ivitie~ among horses ~hich are hold on -the pasture.
:
In visw of the problems inherent to -the conventional horseshoes as described above the inven-tor invented !
' .
:, : .
~3~S~
improved horseshoes made of synthetic rubber and filed an allication for registration of utility model (of which invention has been granted as an utility model under Japanese Utility Model Publication NO~ 7,585/1973)~
The above-proposed horseshoes are made of synthetic rubber which i9 molded to the configuration corresponding to tha-t of the bottom of the hoofs and they are fixedly secured -thereto with the aid of adhesive. Since they are fixed to the bottom of the hoofs using adhesive, there is no fear of cau~ing injuries on the hoofs. In addition no hurt occurs on the legs owing to elasticity of the horse-shoes.
However, it is found that the improved horseshoes have still drawbacks Specifically, after applying an adhesive onto the bottom of a hoof it i9 necessary to hold up a leg in the folded state until the adhesive is comple-tely hardened, thus resulting in a long period of time being conbumed.
To obviate the foregoing drawbacks the inventor invented another improved horseshoes of the type including a;body made of elastomeric material having the configuration ~corresponding to the bottom of the hoof, an inclined side wall portion molded in~egral with the body along the periphery of the latter to define a hollow space in which the hoof ia snugly aocomodated and a band extending between ~: ' ~ . ~
~3~
both the free ends of -the body at the rear part of the lat-ter so as to firmly hold the horseshoe on the hoof.
Later he Piled application for patent in U.S.A. and E~gland (the filed applications have been granted as a pate~t under U.S.Patent ~0~ 4,470j466 and U.K. Paten-t NOo 2~128~867)~
The last-mentioned improved horseshoe is so constructed that it is fixed to ~he hoof' by receiving the latter in the hollow space as defined by the body and the side wall portion and firmly holding it on the hoof with the aid of the band which is bridged betv~een both -the free ends of the body~ Owing'to the,fact that no nail is used, fixing i9 not achieved with the use of an adhesive and the body i9 made of elastomeric material the improved horseshoe has advan-tageous features that no hut occurs on hoo~s and legs and it is easy to be fit-ted onto the hoof.
Obviously, it is important that this kind of horseshoe is inhibited from dropping from the hoof during running.
The last-mentioned improved horseshoe has succeeded in firmly holding it on the hoof by engaging the band to the upper par~ of ~ spherical raised portionSon -the lower rear part of a leg and at present it has been put in practical use. As a result of practical use as mentioned above, however, it has still another drawback that displacemen-t of the body relative to -the hoof in the transverse direction tends to take place under the influence of ~ ~.
: : :
~ - 4 -.
'' ~3Ci~
transverse force exer-ted thereon, for instance, when horse jumps, because the concomonents cons-ti-tuting it are made of elastomeric material.
.~
Hence, the present i~vention has been made with -the foregoing background in mind.
It is an object of the present invention to provide a horseshoe assembly made of elastomeric material which assures that no displacement takes place when transverse force is exerted on it.
It is other object of -the present invention -to provide a horseshoe a,ssembly which is easy to be fitbed onto and removed from a hoof of a leg without any use of nail and whioh assures that no hurt occurs on the hoof owing to the fact that no nail is used.
It is another object of the present invention to provide a horseshoe assembly which a~sures that no hurt oocurs on th leg during walking, running or the like.
To accomplish the above objects there is proposed according to the present invention a horseshoe assembly adapted to accomodate a substantially whole part of a hoof of a horse leg therein o~ the type including a body made of elastomeric material and having a configuration correspon-ding to the bottom of the hoof, the body being formed with Q substantially U-shaped cutout of which configuration is ~:
determined to correspond to that of a recess on the bottom of the hoof and having free ends at the rear part thereof, an inclined side wall portion integrated with the body along its peripheral edge, the side wall portion being opened to the outside at its rear end so as to snugly receive the instep of the hoof from the behind and including a first projection and a second projection on the outer side wall thereof relative to the leg of a horse, the first projection being located forwardly of the second projection as seen in the longitudinal direction of the horseshoe assembly, and a band molded integral with the body to extend across the latter in the inclined state, the band having a free end on the outside part relative to the leg with a hole formed therethrough so as to allow the first projection to be fitted into the hole while the second projection supports the lower edge of the band in the inclined state which is bridged between both the free ends of the body with the central part thereof being engaged to the upper parts of spherical raised portions on the lower rear part of the leg, wherein an inclination angle of the side wall portion relative to the body at its fore part is determined within a range of angle of between 0 and 5 degrees comprising an instep angle ~, the lat-ter defining an extent of angular error, and that the body is inteyrally formed with a bridge .
-' , ' "
~ 3~tS ~ ~
member at i-ts rear end by way of which both the free ends of the body are connected to one another.
Other objects, features and advantages of the present invention will become readily apparen-t from reading of the following description ~hich has been prepared in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWI~GS
.
~ he accompanying drawings will be briefly described below.
Fig. 1 is a perspective view of a horseshoe assembly in accordance with a pre~erred embodiment of the invention.
Fig. 2 i~ a fragmental side view of a horse leg, particularly illustrating a hoof.
Fig. 3 is a bottom view of the horseshoe assembly in ~ig. 1.
~ lg~ 4 is a yertical sectional view of the horseshoe assembly taken in line IV - IV in Fig. 1, and Fig. 5 is a fragmental perspective view of the lower part~ of the leg, particularly illustrating the operative state where the horseshoe assembly of the invention is fitted onto the hoof~
~ ' ~
: : ~ ;
, ' ' ' : , :
-` ~3~S~7 DESCRIP~rI~N 0~ Ir~E PREFERRED EMB~DIMENIr _ _ _ Now9 the present invention will be described in a greatsr detail hereunder with referance to the accompanying drawings which illustrate a pre~erred embodiment thereof.
It should be noted that the shown embodiment is merely illustrative and therefore the present should not be limited only to this.
Fig. 1 i8 a perspe¢tive view o~ a horseshoe assembly in accordance with the embodiment of the invention, Fig. 2 i8 a ~ide view of~the lower part of a horse leg , particul-arly illustrating a hoo~ of the latter, Fig. 3 i9 a bottom view of the horseshoe assembly in Fig. l and Fig. 4 is a vertical section~l view of the horseshoe assembly taken in line IV - IV in Fig. 4. A~ will be readily apParent from the drawings, the horseshoe of the invention is so constru-ted that the rear part of a body l having the configuration corresponding to the bottom of the hoof is opened to the outside so as to allow the hoof to be accomodated in the hoolw space as defined by the body l and an inclined s~de wall portion 2 is made integral with the body l to snugly cover the insteP of the hoof.
The inclined s1de wall Portion 2 i~ designed in such a manner that an error as measured be~ween the inclination angle of the side wall portion 2 and an angle e ~ormed by the bottom 30 and the instep 31 of the hoof 3 that is called ' -~ :
' . : - '. ~ '' ~ : -~3~ 7 instep angle is restricted within a range of five degraes.
~pecifically, the inclined side wall portion 2 is so designed that an angle x -Eormed by the side wall por-tion 2 and the body 1 i8 determined within the range as defined by an inquality of ~ < x < ~ + 5. When the angle x i8 de-termi-ned less than the instep angle ~, there is a fear of causing malfunctions that the hoof is difficult to be accomodated in the horseshoe assembly, the latter is deformed undesirably and it is di~place~ transver~ely of the hood by an appreciable distance especially when certain force i5 exerted on it in the transverse direction. On the other hand9 when the angle x exceeds the insetp angle ~ by an extent of 5 , the side wall portion 2 fails to well fit the ins~ep 31, resulting in unde~irable displacement taking place in the same manner as mentioned above.
Thus, proper determination of the angle x formed by the side wall portion 2 and -the body 1 is very important for the viewpoint of inhibiting an occurrence of displacement of the horseshoe. It is confirmed by a number of experiments that displacement of the horseshoe from the hoof is easy to take pla¢e, unles~ the aforesaid angle is de-termined properly.
A band 4 extending from the position located in the ; ; vicinity of the one free end of the side wall portion 2 at a certain inclination angle is integrated with the side wall portion 2, The band 4 is formsd with an engagement hole 5 : : :
_ g _ ,~
, ' ' ' ~39~Sg~Z7 at its free end. After the band 4 i~ engaged to the upper par~ of the sphericaL raised portion30n the horse leg( ~ ~ ) (see ~ig. 5), it extends -therefrom further at a downward inclination angle until the engagement hole 5 on the free end of the band 4 is fitted onto an engagement projection 6 which i9 provided on the other free end part of -the side wall portion 2. Incidentally, -the reason why the band 4 does not extend in the vertical directlon ~rom the upper end of the le~t part of the side wall portion 2 a~ seen in Fig. 1 until the ~ree end of the band 4 is fixedly fitted onbo the engagement pro~ection on -the right par-t of the side wall portion 2 in the same manner as in -the illustrated embodiment consists in that one ,ïeg of a horse rubs against the other one' sometimes during running operation.
~pecifically, if the engagement projection on the one leg, is directed toward -the engagement projection on -the other leg, legs are damaged or injuried due to collision of the one engagement projection with the other one when the one ~leg rubs against the other one. For the reason it is ;preferable that no engagement projection is provided on the ~;oppositely located side (namely~ on the inside) of each of the horse ieg~ Obviously, the embodiment of the invention has been described in view o~ the above-mentioned fact as : ::
to the case where the horseshoe for the left-hand leg :
~ is~shown in the accompanying drawings.
::
:
. ' ' ' ' ' ~ ~ S ~ Z ~ 27431-4 As will be best seen in Flg. 1, a support projection 7 is provided on the side wall portion 2 in the side-by-side rela-tion at the position located closer to the free end of the sidewall portion 2 than the engagement projection 6. The support projection 7 functions to support the lower edge oE the band 4 so as to allow the band 4 to extend in the inclined state when the engagement hole 5 on the free end of the band 4 is fixedly fitted onto the engagement projection 6.
A bridge member 8 is formed integral with the body l to connect both the free ends of the body 1 to one another whereby displacement of both the free ends of the body l in the transverse direction or in the inclined direction is inhibited. Namely, the bridge member 8 inhibits the whole horseshoe assembly from being deformed under the effect of various force, particularly force in the transverse direction. Thus, displacement of the horseshoe assembly from the hoof 3 does not take place.
The body l is formed with a number of lattice-shaped antiskid treads 8 over the inner wall thereof in order to improve running performance of the horseshoe assembly. Further, a U-shaped cutout lO is formed at the central part 1 and a raisedportion 11 is projected upwardly in the inclined state from the periphery of the cutout lO toward a recess on the bottom of the hoof 3.
; ~ The body 1 and the side wall portion 2 are made of 7~
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, . ~, .
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elastomeric material whereby shock active on the lega during running or the like is damped and load carried by the joint portion or the like part on the leg is reduced, resulting in an occurrence of injury being inhibited. Synt'netic rubber such as polyuretane, polybutadiene; polystylene or the like or natural rubber is employable as elastomeric material.
It is preferable that elastomeric material used as material for the body 1 has JIS A hardness in the range of 60 to 97. If it has JIS A hardness lower than 6Q, it is found that a horse is difficult to walk or run due to exces~ive elasticity. On the other hand, if it has JIS A
hardness higher than 97, it become~ excessively hard and therefore there i~ seen no advantage when the horseshoe is made of elastomeric material~ In the case when a racing horse or the like walks or runs maninly on the soft ground such as dirt, lawn, pasture or the like ground, it is pre~erable that elastomeric material having compara-tively high JIS A hardnes~ in the range of 85 to 97 is seIectedO
:
On the other hand, in the case when it walks or runs on the hard~ground such as paved road, floor of stable or the llke ground, it i~ preferable that elastomeric material having comparatively low JIS A hardness in the range of 60 to 70 is selected.
: Next, fitbing operati.on of the horseshoe of the :
_ 12 :, ~,;
.
~l3~ 7 invention onto the hoof 3 will be described below~
As shown in ~ig. l, the hoof 3 i9 ~irst ~itted ~rom the opened side of the body 1 into the hollow space as de~-Lned by the body 1 and the side wall portion 2. Next, as shown in Fig. 5, the band 4 i~ engaged to the upper part of the spherical raised portion 12 and thereafter it extends downwardly further until the engagement hole 5 on the fore end of' the band 4 is fitted onto the enO~agement projection 6 on the side wall portion 20 Alternatively, fitting opera-tion may be performed by way of the steps of first fitting the engagement hole 5 on the band 4 on-to the engagement projection 6, inserting the hoof 3 into the hollow space as defined by the body 1 and the side wall portion 2 and then engaging the band 4 to the upper partSof the spherical raised portion~l2 while stretch-ing the band 4 by an operator~s hand.
~ ince the support projection 7 supports the lower edge of the band 4 on completion-o-f fitting operation, inclined extension oP the band 4 in the s-tretched state is maintained.
By virtue of the arrangement ma~e in that way it is assured that downward displacement of the band 4 beyond the spheri-cal raised portion~l2 is inhibited and moreover burden on the latter is reduced.
In order to reduoe burden on the spherical raised portion~it is preferable that the inside surface of the ' :.
~3~ 27 band 4 is lined with so~t elastomeric material such as sponge, polyuretane rubber or the like.
As will be readily understood ~rom the above descript-ion, the present invention consists in that both the free ends of the body are connec-ted to one another by way of a bridge member which is molded integral with the body in order to inhibit transverse displacement o~ .the body and deformation of the latter under the effect o~ force exerted on the body in the transverse direction and that the angle x formed by the side wall portion and the body is determined same to the instep angle ~. Owing to this the firmly fitted state can be maintained lrrespective of how high force is exerted on the horseshoe assembly in any direction.
While the presen-t invention has been described above with respect -to a single preferred embodiment, it should o~
cource be understood that:it should not be limited only to this but various changee or modifications may be made in any acceptable manner without departure ~rom the spirit and scope of the i~vention as defined by the appended claims.
:
~:
:
: :: - 14 -.,., :
. _ ~. . _ It has been a common practice long sice to put horsesh-oes made of steel on hoofs for all horses including racing horces and others in order to probect them from cracking or accicodental injury. A typical conventional method of putting the horseshoes on the hoofs is practiced by way of the steps of correctly locating one of them on the bottom surface of -the hoof to fix it thereagainst, driving nails n-to the hoof from the bottom and then bending a projected part of the nails which penetrates -through the hoof and pro3ec-~s above the upper surface of the hoof~
However, it has b~een pointed out as drawbacks inherent to the above-mentioned conventional method of fixing the horseshoes onto the hoofs that bhere is a necessity for removlng nails from them and then renail them at every time when they are replaced with new one~, thus resulting in : ~ :
many nail holes be~ng left through the hoofs. Thi~ leads to no space being lef-t for renailing through the hoof or :: :: ~ ~ : : :
:
~ ' 1~3~ 7 replaced horseshoes being easy to drop down therefrom during running.
Particularly9 in the case of a racing horse it is common that a horseshoe of the type having a relatively wide width that is generally called "flat shoe" is fixedly put on the hoof using nails while it is still red hot. On the day of horse racing, however, it is a necessity for replacing the flat shoes with other ones made of light alloy material such as aluminum alloy having a relatively narrow width that are generally called 'rrace shoe".
Consequently, it is inevitable that replacing operations in the order of "flat shoe race shoe - flat sho~" are repeated for a considerably short period of time. This ca,uses a number of nail holes to be pierced through -the hoof. In the extreme case it is lmpossblè to fit horseshoes onto the hoofs any longer and it is often found that some hoo~ drops during race~
Further, due to the fact that the conventional horse-shoes are made of metallic material and has no elasicity it is found that the legs hurt because of exposure -to shock caussd during swift running and injuries occur due to kicking ac~ivitie~ among horses ~hich are hold on -the pasture.
:
In visw of the problems inherent to -the conventional horseshoes as described above the inven-tor invented !
' .
:, : .
~3~S~
improved horseshoes made of synthetic rubber and filed an allication for registration of utility model (of which invention has been granted as an utility model under Japanese Utility Model Publication NO~ 7,585/1973)~
The above-proposed horseshoes are made of synthetic rubber which i9 molded to the configuration corresponding to tha-t of the bottom of the hoofs and they are fixedly secured -thereto with the aid of adhesive. Since they are fixed to the bottom of the hoofs using adhesive, there is no fear of cau~ing injuries on the hoofs. In addition no hurt occurs on the legs owing to elasticity of the horse-shoes.
However, it is found that the improved horseshoes have still drawbacks Specifically, after applying an adhesive onto the bottom of a hoof it i9 necessary to hold up a leg in the folded state until the adhesive is comple-tely hardened, thus resulting in a long period of time being conbumed.
To obviate the foregoing drawbacks the inventor invented another improved horseshoes of the type including a;body made of elastomeric material having the configuration ~corresponding to the bottom of the hoof, an inclined side wall portion molded in~egral with the body along the periphery of the latter to define a hollow space in which the hoof ia snugly aocomodated and a band extending between ~: ' ~ . ~
~3~
both the free ends of -the body at the rear part of the lat-ter so as to firmly hold the horseshoe on the hoof.
Later he Piled application for patent in U.S.A. and E~gland (the filed applications have been granted as a pate~t under U.S.Patent ~0~ 4,470j466 and U.K. Paten-t NOo 2~128~867)~
The last-mentioned improved horseshoe is so constructed that it is fixed to ~he hoof' by receiving the latter in the hollow space as defined by the body and the side wall portion and firmly holding it on the hoof with the aid of the band which is bridged betv~een both -the free ends of the body~ Owing'to the,fact that no nail is used, fixing i9 not achieved with the use of an adhesive and the body i9 made of elastomeric material the improved horseshoe has advan-tageous features that no hut occurs on hoo~s and legs and it is easy to be fit-ted onto the hoof.
Obviously, it is important that this kind of horseshoe is inhibited from dropping from the hoof during running.
The last-mentioned improved horseshoe has succeeded in firmly holding it on the hoof by engaging the band to the upper par~ of ~ spherical raised portionSon -the lower rear part of a leg and at present it has been put in practical use. As a result of practical use as mentioned above, however, it has still another drawback that displacemen-t of the body relative to -the hoof in the transverse direction tends to take place under the influence of ~ ~.
: : :
~ - 4 -.
'' ~3Ci~
transverse force exer-ted thereon, for instance, when horse jumps, because the concomonents cons-ti-tuting it are made of elastomeric material.
.~
Hence, the present i~vention has been made with -the foregoing background in mind.
It is an object of the present invention to provide a horseshoe assembly made of elastomeric material which assures that no displacement takes place when transverse force is exerted on it.
It is other object of -the present invention -to provide a horseshoe a,ssembly which is easy to be fitbed onto and removed from a hoof of a leg without any use of nail and whioh assures that no hurt occurs on the hoof owing to the fact that no nail is used.
It is another object of the present invention to provide a horseshoe assembly which a~sures that no hurt oocurs on th leg during walking, running or the like.
To accomplish the above objects there is proposed according to the present invention a horseshoe assembly adapted to accomodate a substantially whole part of a hoof of a horse leg therein o~ the type including a body made of elastomeric material and having a configuration correspon-ding to the bottom of the hoof, the body being formed with Q substantially U-shaped cutout of which configuration is ~:
determined to correspond to that of a recess on the bottom of the hoof and having free ends at the rear part thereof, an inclined side wall portion integrated with the body along its peripheral edge, the side wall portion being opened to the outside at its rear end so as to snugly receive the instep of the hoof from the behind and including a first projection and a second projection on the outer side wall thereof relative to the leg of a horse, the first projection being located forwardly of the second projection as seen in the longitudinal direction of the horseshoe assembly, and a band molded integral with the body to extend across the latter in the inclined state, the band having a free end on the outside part relative to the leg with a hole formed therethrough so as to allow the first projection to be fitted into the hole while the second projection supports the lower edge of the band in the inclined state which is bridged between both the free ends of the body with the central part thereof being engaged to the upper parts of spherical raised portions on the lower rear part of the leg, wherein an inclination angle of the side wall portion relative to the body at its fore part is determined within a range of angle of between 0 and 5 degrees comprising an instep angle ~, the lat-ter defining an extent of angular error, and that the body is inteyrally formed with a bridge .
-' , ' "
~ 3~tS ~ ~
member at i-ts rear end by way of which both the free ends of the body are connected to one another.
Other objects, features and advantages of the present invention will become readily apparen-t from reading of the following description ~hich has been prepared in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWI~GS
.
~ he accompanying drawings will be briefly described below.
Fig. 1 is a perspective view of a horseshoe assembly in accordance with a pre~erred embodiment of the invention.
Fig. 2 i~ a fragmental side view of a horse leg, particularly illustrating a hoof.
Fig. 3 is a bottom view of the horseshoe assembly in ~ig. 1.
~ lg~ 4 is a yertical sectional view of the horseshoe assembly taken in line IV - IV in Fig. 1, and Fig. 5 is a fragmental perspective view of the lower part~ of the leg, particularly illustrating the operative state where the horseshoe assembly of the invention is fitted onto the hoof~
~ ' ~
: : ~ ;
, ' ' ' : , :
-` ~3~S~7 DESCRIP~rI~N 0~ Ir~E PREFERRED EMB~DIMENIr _ _ _ Now9 the present invention will be described in a greatsr detail hereunder with referance to the accompanying drawings which illustrate a pre~erred embodiment thereof.
It should be noted that the shown embodiment is merely illustrative and therefore the present should not be limited only to this.
Fig. 1 i8 a perspe¢tive view o~ a horseshoe assembly in accordance with the embodiment of the invention, Fig. 2 i8 a ~ide view of~the lower part of a horse leg , particul-arly illustrating a hoo~ of the latter, Fig. 3 i9 a bottom view of the horseshoe assembly in Fig. l and Fig. 4 is a vertical section~l view of the horseshoe assembly taken in line IV - IV in Fig. 4. A~ will be readily apParent from the drawings, the horseshoe of the invention is so constru-ted that the rear part of a body l having the configuration corresponding to the bottom of the hoof is opened to the outside so as to allow the hoof to be accomodated in the hoolw space as defined by the body l and an inclined s~de wall portion 2 is made integral with the body l to snugly cover the insteP of the hoof.
The inclined s1de wall Portion 2 i~ designed in such a manner that an error as measured be~ween the inclination angle of the side wall portion 2 and an angle e ~ormed by the bottom 30 and the instep 31 of the hoof 3 that is called ' -~ :
' . : - '. ~ '' ~ : -~3~ 7 instep angle is restricted within a range of five degraes.
~pecifically, the inclined side wall portion 2 is so designed that an angle x -Eormed by the side wall por-tion 2 and the body 1 i8 determined within the range as defined by an inquality of ~ < x < ~ + 5. When the angle x i8 de-termi-ned less than the instep angle ~, there is a fear of causing malfunctions that the hoof is difficult to be accomodated in the horseshoe assembly, the latter is deformed undesirably and it is di~place~ transver~ely of the hood by an appreciable distance especially when certain force i5 exerted on it in the transverse direction. On the other hand9 when the angle x exceeds the insetp angle ~ by an extent of 5 , the side wall portion 2 fails to well fit the ins~ep 31, resulting in unde~irable displacement taking place in the same manner as mentioned above.
Thus, proper determination of the angle x formed by the side wall portion 2 and -the body 1 is very important for the viewpoint of inhibiting an occurrence of displacement of the horseshoe. It is confirmed by a number of experiments that displacement of the horseshoe from the hoof is easy to take pla¢e, unles~ the aforesaid angle is de-termined properly.
A band 4 extending from the position located in the ; ; vicinity of the one free end of the side wall portion 2 at a certain inclination angle is integrated with the side wall portion 2, The band 4 is formsd with an engagement hole 5 : : :
_ g _ ,~
, ' ' ' ~39~Sg~Z7 at its free end. After the band 4 i~ engaged to the upper par~ of the sphericaL raised portion30n the horse leg( ~ ~ ) (see ~ig. 5), it extends -therefrom further at a downward inclination angle until the engagement hole 5 on the free end of the band 4 is fitted onto an engagement projection 6 which i9 provided on the other free end part of -the side wall portion 2. Incidentally, -the reason why the band 4 does not extend in the vertical directlon ~rom the upper end of the le~t part of the side wall portion 2 a~ seen in Fig. 1 until the ~ree end of the band 4 is fixedly fitted onbo the engagement pro~ection on -the right par-t of the side wall portion 2 in the same manner as in -the illustrated embodiment consists in that one ,ïeg of a horse rubs against the other one' sometimes during running operation.
~pecifically, if the engagement projection on the one leg, is directed toward -the engagement projection on -the other leg, legs are damaged or injuried due to collision of the one engagement projection with the other one when the one ~leg rubs against the other one. For the reason it is ;preferable that no engagement projection is provided on the ~;oppositely located side (namely~ on the inside) of each of the horse ieg~ Obviously, the embodiment of the invention has been described in view o~ the above-mentioned fact as : ::
to the case where the horseshoe for the left-hand leg :
~ is~shown in the accompanying drawings.
::
:
. ' ' ' ' ' ~ ~ S ~ Z ~ 27431-4 As will be best seen in Flg. 1, a support projection 7 is provided on the side wall portion 2 in the side-by-side rela-tion at the position located closer to the free end of the sidewall portion 2 than the engagement projection 6. The support projection 7 functions to support the lower edge oE the band 4 so as to allow the band 4 to extend in the inclined state when the engagement hole 5 on the free end of the band 4 is fixedly fitted onto the engagement projection 6.
A bridge member 8 is formed integral with the body l to connect both the free ends of the body 1 to one another whereby displacement of both the free ends of the body l in the transverse direction or in the inclined direction is inhibited. Namely, the bridge member 8 inhibits the whole horseshoe assembly from being deformed under the effect of various force, particularly force in the transverse direction. Thus, displacement of the horseshoe assembly from the hoof 3 does not take place.
The body l is formed with a number of lattice-shaped antiskid treads 8 over the inner wall thereof in order to improve running performance of the horseshoe assembly. Further, a U-shaped cutout lO is formed at the central part 1 and a raisedportion 11 is projected upwardly in the inclined state from the periphery of the cutout lO toward a recess on the bottom of the hoof 3.
; ~ The body 1 and the side wall portion 2 are made of 7~
.~ ~
: ~ , ,. ' ` .
, . ~, .
"
~3~S~
elastomeric material whereby shock active on the lega during running or the like is damped and load carried by the joint portion or the like part on the leg is reduced, resulting in an occurrence of injury being inhibited. Synt'netic rubber such as polyuretane, polybutadiene; polystylene or the like or natural rubber is employable as elastomeric material.
It is preferable that elastomeric material used as material for the body 1 has JIS A hardness in the range of 60 to 97. If it has JIS A hardness lower than 6Q, it is found that a horse is difficult to walk or run due to exces~ive elasticity. On the other hand, if it has JIS A
hardness higher than 97, it become~ excessively hard and therefore there i~ seen no advantage when the horseshoe is made of elastomeric material~ In the case when a racing horse or the like walks or runs maninly on the soft ground such as dirt, lawn, pasture or the like ground, it is pre~erable that elastomeric material having compara-tively high JIS A hardnes~ in the range of 85 to 97 is seIectedO
:
On the other hand, in the case when it walks or runs on the hard~ground such as paved road, floor of stable or the llke ground, it i~ preferable that elastomeric material having comparatively low JIS A hardness in the range of 60 to 70 is selected.
: Next, fitbing operati.on of the horseshoe of the :
_ 12 :, ~,;
.
~l3~ 7 invention onto the hoof 3 will be described below~
As shown in ~ig. l, the hoof 3 i9 ~irst ~itted ~rom the opened side of the body 1 into the hollow space as de~-Lned by the body 1 and the side wall portion 2. Next, as shown in Fig. 5, the band 4 i~ engaged to the upper part of the spherical raised portion 12 and thereafter it extends downwardly further until the engagement hole 5 on the fore end of' the band 4 is fitted onto the enO~agement projection 6 on the side wall portion 20 Alternatively, fitting opera-tion may be performed by way of the steps of first fitting the engagement hole 5 on the band 4 on-to the engagement projection 6, inserting the hoof 3 into the hollow space as defined by the body 1 and the side wall portion 2 and then engaging the band 4 to the upper partSof the spherical raised portion~l2 while stretch-ing the band 4 by an operator~s hand.
~ ince the support projection 7 supports the lower edge of the band 4 on completion-o-f fitting operation, inclined extension oP the band 4 in the s-tretched state is maintained.
By virtue of the arrangement ma~e in that way it is assured that downward displacement of the band 4 beyond the spheri-cal raised portion~l2 is inhibited and moreover burden on the latter is reduced.
In order to reduoe burden on the spherical raised portion~it is preferable that the inside surface of the ' :.
~3~ 27 band 4 is lined with so~t elastomeric material such as sponge, polyuretane rubber or the like.
As will be readily understood ~rom the above descript-ion, the present invention consists in that both the free ends of the body are connec-ted to one another by way of a bridge member which is molded integral with the body in order to inhibit transverse displacement o~ .the body and deformation of the latter under the effect o~ force exerted on the body in the transverse direction and that the angle x formed by the side wall portion and the body is determined same to the instep angle ~. Owing to this the firmly fitted state can be maintained lrrespective of how high force is exerted on the horseshoe assembly in any direction.
While the presen-t invention has been described above with respect -to a single preferred embodiment, it should o~
cource be understood that:it should not be limited only to this but various changee or modifications may be made in any acceptable manner without departure ~rom the spirit and scope of the i~vention as defined by the appended claims.
:
~:
:
: :: - 14 -.,., :
Claims (12)
1. A horseshoe assembly adapted to accommodate a substantially whole part of a hoof of a horse leg therein of the type including a body made of elastomeric material and having a configuration corresponding to the bottom of the hoof, said body being formed with a substantially U-shaped cutout of which configuration is determined to correspond to that of a recess on the bottom of the hoof and having free ends at the rear part thereof, an inclined side wall portion integrated with the body along its peripheral edge, said side wall portion being opened to the outside at its rear end so as to snugly receive the instep of the hoof from the behind and including a first projection and a second projection on the outer side wall thereof relative to the leg of a horse, said first projection being located forwardly of said second projection as seen in the longitudinal direction of the horseshoe assembly, and a band molded integral with the body to extend across the latter in the inclined state, said band having a free end on the outside part relative to the leg with a hole formed therethrough so as to allow the first projection to be fitted into said hole on the free end of the band while the second projection supports the lower edge of the band in the inclined state which is bridged between both the free ends of the body with the central part thereof being engaged to the upper parts of spherical raised portions on the lower rear part of the leg, wherein an inclination angle of the side wall portion relative to the body at its fore part is determined within a range of angle of between O and 5 degrees comprising an instep angle .theta. the latter defining an extent of angular error, and that the body is integrally formed with a bridge member at its rear end by way of which both the free ends of the body are connected to one another.
2. A horseshoe assembly as defined in claim 1, wherein the side wall portion is made of elastomeric material.
3. A horseshoe assembly as defined in claim 1, wherein both the first projection and the second projection are provided only on the outside wall of the side wall portion relative to the leg of a horse.
4. A horseshoe assembly as defined in claim 1 wherein the cutout on the bottom of the body has a projection which is projected upwardly in the inclined state from the peripheral edge of the cutout to enter a recess on the bottom of the leg.
5. A horseshoe assembly as defined in claim 2 or 3, wherein the cutout on the bottom of the body has a projection which is projected upwardly in the inclined state from the peripheral edge of the cutout to enter a recess on the bottom of the leg.
6. A horseshoe assembly as defined in claim 1, wherein the body has a number of lattice-shaped antiskid treads formed over the upper surface thereof.
7. A horseshoe assembly as defined in claim 2, 3 or 4, wherein the body has a number of lattice-shaped antiskid treads formed over the upper surface thereof.
8. A horseshoe assembly as defined in claim 1, wherein elastomeric material constituting the body has a JIS A hardness in the range of 60 to 97.
9. A horseshoe assembly as defined in claim 2, 3, 4 or 6, wherein elastomeric material constituting the body has a JIS A
hardness in the range of 60 to 97.
hardness in the range of 60 to 97.
10. A horseshoe assembly as defined in claim 8, wherein elastomeric material constituting the body has a JIS A hardness in the range of 80 to 97.
11. A horseshoe assembly as defined in claim 8, wherein elastomeric material constituting the body has a JIS A hardness in the range of 60 to 70.
12. A horseshoe assembly as defined in claim 1 or 2, wherein the bridge member is made of elastomeric material
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13140085U JPS6239483U (en) | 1985-08-30 | 1985-08-30 | |
| JP131400/85 | 1985-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1305427C true CA1305427C (en) | 1992-07-21 |
Family
ID=15057089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000507428A Expired - Lifetime CA1305427C (en) | 1985-08-30 | 1986-04-24 | Horseshoe assembly |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS6239483U (en) |
| AU (1) | AU589189B2 (en) |
| CA (1) | CA1305427C (en) |
| NZ (1) | NZ216005A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113170567B (en) | 2019-11-12 | 2023-11-28 | 东芝三菱电机产业系统株式会社 | Active gas generating device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE7905778L (en) * | 1979-07-02 | 1981-02-19 | Igal Tovim | HORSES OF PLASTIC |
-
1985
- 1985-08-30 JP JP13140085U patent/JPS6239483U/ja active Pending
-
1986
- 1986-04-24 CA CA000507428A patent/CA1305427C/en not_active Expired - Lifetime
- 1986-04-30 NZ NZ21600586A patent/NZ216005A/en unknown
- 1986-07-01 AU AU59439/86A patent/AU589189B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6239483U (en) | 1987-03-09 |
| AU5943986A (en) | 1987-03-05 |
| AU589189B2 (en) | 1989-10-05 |
| NZ216005A (en) | 1989-01-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |