JP2000023610A - Horseshoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the shape of strip so as to smoothly use horseshoes for a race, training, etc., without hindrance. SOLUTION: A strip 11 extended in an approximately U shape comprises a double structure of a stationary plate 12 made of a metal and an earth plate 13 made of a resin. The strip 11 has a stationary face of the stationary plate 12 to be fitted to a hoof and an earth face 19 of the earth plate 13 formed approximately in parallel with the stationary face. A slit 46 capable of reducing a flexural rigidity in bending the strip 11 along the fixed face of the stationary plate 12 is formed on the inner peripheral surface 21 of the strip 11. The Nikunusumi 46 is composed of each groove 44 and an inclined surface 42. The flexural rigidity of the strip 11 is reduced by the slit 46 to readily bend the strip 11, the sectional deformation of the strip 11 is suppressed to reduce the angle of inclination of the earth face 19 and that of the stationary face. Consequently when the strip 11 is fixed to the undersurface of the hoof, the angle of inclination of the earth face 19 from the undersurface of the hoof is also reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light alloy horseshoe used for competition or training, for example, and more particularly to a horseshoe having a cushion function.

[0002]

2. Description of the Related Art First, a conventional horseshoe shown in FIGS. The strip plate 11 extending in a substantially U shape is formed into a double structure by a fixing plate 12 made of metal and a ground plate 13 made of resin. The strip 11 has a fixing surface 18 of the fixing plate 12 attached to the hoof, a grounding surface 19 of the grounding plate 13 formed substantially parallel to the fixing surface 18, and an outer peripheral edge 22 of the fixing surface 18. An outer peripheral surface 20 defined by an outer peripheral edge 23 of the ground contact surface 19 and an inner peripheral edge 24 of the fixed surface 18
Inner peripheral surface 2 divided by the inner peripheral edge 25 of the ground plane 19
And 1. The outer peripheral surface 20 of the strip plate 11 has an outer peripheral surface 26 of the fixed plate 12 formed along the inner peripheral edge 22 of the fixed surface 18 and an outer peripheral surface 27 of the ground plate 13 formed along the inner peripheral edge 23 of the ground surface 19. And The inner peripheral surface 21 of the strip plate 11 has an inner peripheral surface 28 of the fixed plate 12 formed along the inner peripheral edge 24 of the fixed surface 18 and an inner peripheral surface 25 of the ground surface 19.
Along with the inner peripheral surface 29 of the ground plate 13.

[0003]

When adjusting the horseshoe according to the size of the hoof, usually, a horseshoe having a strip 11 larger than the outer peripheral edge of the lower surface of the hoof is selected, and the strip 11 is fitted to this hoof. For this purpose, the strip 11 is bent by beating or the like.

When a bending moment is generated in the band plate 11 by the bending force 47 of the band plate 11, lateral contraction and longitudinal elongation occur on the outer peripheral surface 20 side of the band plate 11 due to tensile stress.
Lateral elongation and longitudinal contraction occur on the inner peripheral surface 21 side of the strip 11 due to compressive stress. In this case, the ground surface 19 of the ground plate 13 and the fixed surface 18 of the fixed plate 12 are closer to the inner peripheral surface 21 of the strip plate 11.
Bulges, and the grounding surface 19 and the fixing surface 18 are inclined.
When the horseshoe strip 11 thus deformed is attached to the lower surface of the hoof, the inclination angle of the ground contact surface 19 with respect to the lower surface of the hoof increases. For this reason, there is a risk that the use of horseshoes in competition or training may be a hindrance.

[0005] It is an object of the present invention to improve the shape of the strip so that the horseshoe can be used smoothly without hindering competition or training even when the horseshoe is adjusted according to the size of the hoof. I have to.

[0006]

Means for Solving the Problems In the drawings of the following embodiments (first embodiment shown in FIGS. 1 to 11, second embodiment shown in FIGS. 12 to 13, third embodiment shown in FIGS. 14 to 15). The invention will be described with the aid of reference numerals.

The horseshoes according to the first, fifth, sixth and seventh aspects of the invention are based on the following common configuration. A strip plate (11) extending in a substantially U shape is fixed to a fixed plate (12) made of metal and a ground plate (1) made of resin.
3) to form a double structure. This strip (1
1) A fixed plate (12) attached to an animal hoof (32)
, A ground plane (19) of a ground plate (13) formed substantially parallel to the fixed plane (18), an outer peripheral edge (22) of the fixed plane (18) and a ground plane ( 19), an inner peripheral surface defined by an outer peripheral surface (20) defined by an outer peripheral edge (23), an inner peripheral edge (24) of the fixed surface (18), and an inner peripheral edge (25) of the ground contact surface (19). (21). The inner peripheral surface (21) of the strip plate (11) is formed along the inner peripheral edge (24) of the fixing surface (18).
2) and the inner peripheral edge (2) of the ground contact surface (19).
5) Inner peripheral surface (29) of ground plate (13) formed along
And

A horseshoe according to the first aspect of the present invention corresponds to the first embodiment, the second embodiment, and the third embodiment, and has the following configuration in addition to the common configuration described above. The inner peripheral surface (29) of the ground plate (13) has a thickness that can reduce the bending stiffness (EI _z ) when bending the strip (11) along the fixing surface (18) of the fixing plate (12). Theft (46) is formed.

The invention of claim 2 corresponds to the first embodiment and the second embodiment, and the following structure is added to the invention of claim 1. A plurality of grooves (39) open on the inner peripheral surface (29) of the inner peripheral surface (29) of the ground plate (13).
Are arranged side by side at intervals in the extending direction of the band plate (11). The robbery (46) is formed by each groove (39).

[0010] The invention of claim 3 corresponds to the first and third embodiments, and the following configuration is added to the invention of claim 1. On the inner peripheral edge (25) of the contact surface (19), an inclined surface (42) continuous with the contact surface (19) and the inner peripheral surface (29) of the contact plate (13) is provided. It is formed to extend in the setting direction. The meat steal (46) is formed by the inclined surface (42).

[0011] The invention of claim 4 corresponds to the first and second embodiments, and the following configuration is added to the invention of claim 1. A plurality of grooves (39) open on the inner peripheral surface (29) of the inner peripheral surface (29) of the ground plate (13).
Are arranged side by side at intervals in the extending direction of the band plate (11). On the inner peripheral edge (25) of the contact surface (19), an inclined surface (42) continuous with the contact surface (19) and the inner peripheral surface (29) of the contact plate (13) is provided. It is formed to extend in the setting direction. The meat stealing (46) is performed in each of the grooves (3
9) and the inclined surface (42).

A horseshoe according to a fifth aspect of the present invention corresponds to the first embodiment and has the following configuration in addition to the common configuration described above. On the inner peripheral surface (28) of the fixing plate (12), a plurality of grooves (41) opened on the inner peripheral surface (28) are arranged at intervals in the extending direction of the strip plate (11). Has been established. Each groove (41) forms a meat steal (46) that can reduce the bending rigidity (EI _z ) when bending the strip (11) along the fixing surface (18) of the fixing plate (12). .

A horseshoe according to a sixth aspect of the present invention corresponds to the first embodiment and has the following configuration in addition to the common configuration described above. The inner peripheral surface (29) of the ground plate (13) and the inner peripheral surface (28) of the fixed plate (12) are each provided with a plurality of grooves (39) opened on the inner peripheral surfaces (29, 28). , 41) are arranged side by side at intervals in the extending direction of the strip (11). Each of the grooves (39, 41) can reduce the bending rigidity (EI _z ) when bending the strip (11) along the fixing surface (18) of the fixing plate (12).
6) is formed.

A horseshoe according to a seventh aspect of the present invention corresponds to the first embodiment, and has the following configuration in addition to the common configuration described above. The inner peripheral surface (29) of the ground plate (13) and the inner peripheral surface (28) of the fixed plate (12) are each provided with a plurality of grooves (39) opened on the inner peripheral surfaces (29, 28). , 41) are arranged side by side at intervals in the extending direction of the strip (11). On the inner peripheral edge (25) of the contact surface (19), an inclined surface (42) continuous with the contact surface (19) and the inner peripheral surface (29) of the contact plate (13) is provided. It is formed to extend in the setting direction. Each groove (39, 4
1) and the inclined surface (42) form a meat steal (46) capable of reducing the bending rigidity (EI _z ) when bending the strip (11) along the fixing surface (18) of the fixing plate (12). are doing.

The horseshoe according to the invention of claim 8 corresponds to the first embodiment and the second embodiment and is configured as follows. A strip plate (11) extending in a substantially U shape is provided. The strip (11) has a fixing surface (18) attached to the hoof (32) of the animal, a grounding surface (19) formed substantially parallel to the fixing surface (18), and a fixing surface (18). 18), an outer peripheral surface (20) defined by an outer peripheral edge (23) of the ground surface (19), an inner peripheral edge (24) of the fixed surface (18) and the ground surface (19). ) Inner circumference (25)
And an inner peripheral surface (21) defined by the above.

On the inner peripheral surface (21) of the strip (11),
A plurality of grooves (4) opened on the inner peripheral surface (21).
4) are arranged side by side with an interval in the extending direction of the band plate (11). Each groove (44) forms a burglar (46) that can reduce the bending rigidity (EI _z ) when bending the strip (11) along the fixing surface (18) of the fixing plate (12). .

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment First, a horseshoe according to a first embodiment of the present invention will be described with reference to FIGS.

<Outline of Horseshoes Shown in FIGS. 1 to 5> A band plate 11 constituting a horseshoe is bent in a substantially U shape and extends, and is formed by a fixing plate 12 made of metal and a grounding plate 13 made of resin. It is molded into a structure. In the extending direction of the strip 11 (the strip 1
In the case where the head 1 is substantially divided into three portions in a direction in which the head 1 extends in a substantially U-shape, the center portion is defined as a head portion 15 and both side portions sandwiching the head portion 15 are defined as tail portions 16. In this belt plate 11, the fixing plate 12 side is the upper side, the grounding plate 13 side is the lower side, the recess 17 side sandwiched between the tail portions 16 is the inner side, and the convex side is opposite to the recess 17. The side is outside.

The strip plate 11 has a fixed surface 18 which is an upper surface of the fixed plate 12, a ground surface 19 which is a lower surface of the ground plate 13,
Outer peripheral surface 20 outside of fixed plate 12 and ground plate 13
And an inner peripheral surface 21 inside the fixed plate 12 and the ground plate 13. This ground plane 19 is formed substantially parallel to the fixed plane 18. Outer peripheral surface 20 of the strip 11
Are the two tail portions 1 from the head 15 in the entire extending direction of the strip 11.
6 and is defined by an outer peripheral edge 22 of the fixed surface 18 and an outer peripheral edge 23 of the ground contact surface 19. Similarly, the inner peripheral surface 21 of the strip plate 11 is also defined by the inner peripheral edge 24 of the fixed surface 18 and the inner peripheral edge 25 of the ground plane 19. The outer peripheral surface 20 includes an outer peripheral surface 26 of the fixed plate 12 formed along the outer peripheral edge 22 of the fixed surface 18 and an outer peripheral surface 27 of the ground plate 13 formed along the outer peripheral edge 23 of the ground surface 19. Have. The inner peripheral surface 21 includes an inner peripheral surface 28 of the fixed plate 12 formed along the inner peripheral edge 24 of the fixed surface 18 and an inner peripheral surface of the ground plate 13 formed along the inner peripheral edge 25 of the ground surface 19. 29
And

The head 15 and both tails 1 of the strip 11
In the vicinity of the boundary with the fixing plate 6, both iron lips 30 project upward from the fixing surface 18 on the outer peripheral surface 26 of the fixing plate 12. On the grounding surface 19 of the grounding plate 13, both nail grooves 31 are formed so as to extend from the tail portions 16 to the head 15 by a predetermined length in the extending direction of the strip plate 11.

When the aforementioned horseshoe is attached to the horse's hoof 32 as shown in FIG. 10, the fixing surface 18 of the strip 11 is
2 and both iron lips 30 are applied to both sides of the hoof 32, and a nail is driven into the hoof 32 from both nail grooves 31.

<The fixed plate 1 shown in FIGS. 1 to 5 and FIG.
2> This fixed plate 12 is forged with a light alloy such as aluminum before forming the ground plate 13, and as described above,
Fixed surface 18 and its outer peripheral edge 22 and inner peripheral edge 24 and outer peripheral surface 2
6, an inner peripheral surface 28, and both iron lips 30. In addition, a number of holes 33 are formed to penetrate from the lower surface of the fixed plate 12 which is the boundary with the ground plate 13 to the fixed surface 18 of the fixed plate 12. On the lower surface of the fixing plate 12, a projection 34 is provided so as to project downward. In particular, a plurality of grooves 35 are juxtaposed on the inner peripheral surface 28 of the fixed plate 12 in the extending direction of the strip plate 11.

<Grounding plate 13 shown in FIGS. 1 to 5 and 6 to 8> The grounding plate 13 is formed integrally with the fixed plate 12 by insert molding. The resin used for forming the ground plate 13 is urethane alone or an engineering plastic containing urethane. Here, the insert molding means that, in injection molding or the like, the fixing plate 12 is inserted into a cavity of a mold, resin is injected into the cavity, and a ground plate 13 is fixed to the fixing plate 12.
Is integrally molded. When a pin for supporting the fixing plate 12 in the cavity is opened, the ground plate 13 is opened.
When it is removed from the ground surface, a plurality of small holes 36 remain in the ground plane 19.

The ground plate 13 after molding is, as described above,
Grounding surface 19 and its outer peripheral edge 23 and inner peripheral edge 25 and outer peripheral surface 2
7, an inner peripheral surface 29, both nail grooves 31, and small holes 36. In addition, the ground plate 1 is provided in each hole 33 of the fixing plate 12.
A part 37 of the grounding plate 13 is filled at the boundary with 3. The convex portion 34 of the fixed plate 12 enters the ground plate 13 at the boundary with the ground plate 13.

In particular, on the inner peripheral surface 21 of the strip 11, as will be described in detail below, a stealing structure 38 for reducing the bending rigidity EI _z is employed. <The stealing structure 38> On the inner peripheral surface 29 of the ground plate 13, a plurality of grooves 39 which are open to the recesses 17 on the inner peripheral surface 29 have a head in the whole extending direction of the strip plate 11. Part 15
And both tail portions 16 are arranged side by side at a predetermined interval.

Each groove 35 on the inner peripheral surface 28 of the fixing plate 12
Is covered with an inner wall portion 40 that continues from each of the grooves 39. Each groove 41 formed by the inner wall portion 40
Are open to the recess 17 on the inner peripheral surface 28 of the fixing plate 12 and are arranged side by side at a predetermined interval from the head portion 15 to the tail portions 16 in the entire extending direction of the strip plate 11.

The inner peripheral edge 25 of the ground plane 19 has a slope 4
2 is the entire length of the strip 11 extending from the head 15 to both tails 1
6 are formed. This inclined surface 42 is the ground surface 1
9 and the inner peripheral surface 29 of the ground plate 13. In addition, on the outer peripheral edge 23 of the grounding surface 19 in the head 15 of the strip 11,
The inclined flank 43 is formed so as to extend by a predetermined length in the extending direction of the band plate 11 in order to prevent catching at the time of returning foot.

Each groove 44 formed on the inner peripheral surface 21 of the strip plate 11 after the above-described molding is formed by each groove 39 of the inner peripheral surface 29 of the ground plate 13 and each groove 41 of the inner peripheral surface 28 of the fixed plate 12. It is formed in a series. Each of the grooves 44 is continuous with the inclined surface 42 of the inner peripheral edge 25 of the ground plane 19, the inner peripheral surface 29 of the ground plate 13, the inner peripheral surface 28 of the fixed plate 12, and the inner peripheral edge 24 of the fixed surface 18. The inner peripheral surfaces 29 and 28 have an open end 45 opened to the recess 17.

[0029] The respective grooves 44 and the inclined surface 42, thinned 46 is formed which can reduce the flexural rigidity EI _z when bending the strip 11 along the fixed surface 18 of the fixed plate 12. Here, E is a longitudinal elastic modulus, and I _z is a second moment of area with respect to a neutral axis which is an intersection line between the neutral plane and the cross section in an arbitrary cross section.

<Adjustment of Horseshoes According to Size of Hoof 32> Normally, horseshoes having a strip 11 larger than the outer peripheral edge of the lower surface of the hoof 32 shown in FIG. 10 are selected. Then, in order to align the band plate 11 with the hoof 32, the band plate 11 is bent by beating or the like so that the tail portions 16 of the band plate 11 approach each other.

<Schematic Consideration on Cross-sectional Deformation of Strip 11 during Adjustment> As shown in FIGS. 3 and 5, a bending force 47 applied to the tails 16 along the fixing surface 18 of the fixing plate 12 is used. The bending moment M is mainly generated in the strip 11. Due to the bending moment M, a tensile stress is generated on the outer peripheral surface 20 side of the strip 11 shown in FIGS. 1 and 2, and a compressive stress is generated on the inner peripheral surface 21 side of the strip 11 shown in FIGS.

In order to facilitate the following description, the strip 11
Has an approximately rectangular cross section. The bending force 47
About the cross-sectional deformation of the strip 11 in the state where
FIG. 9 shows an operation explanatory view. In FIG. 9, the solid line is after deformation.
, And the broken line shows the cross-sectional shape before deformation. This
Here, the longitudinal extension or contraction refers to the extension of the strip 11 in the extending direction.
Deformation is referred to as lateral shrinkage or lateral elongation.
Deformation in the vertical direction (direction of the neutral axis) orthogonal to
U. In the fixed plate 12, the modulus of longitudinal elasticity is E₁₂And sever
The surface secondary moment is I₁₂, The bending rigidity is E₁₂I
₁₂Becomes In the ground plate 13, the longitudinal elastic modulus is E₁₃When
And the second moment of area is I₁₃, The bending stiffness is
E₁₃I₁₃Becomes The bending moment M is determined by the bending rigidity.
Sex E₁₂I ₁₂And bending stiffness E₁₃I₁₃According to the fixed plate 12
Bending moment M₁₂And bending to ground plate 13
Moment M₁₃And distributed to.

Due to the tensile stress generated on the outer peripheral surface 20 side of the strip 11, lateral contraction and longitudinal elongation occur on the outer peripheral surface 20 side. Due to the compressive stress generated on the inner peripheral surface 21 side of the strip 11, on the inner peripheral surface 21 side, conversely, lateral elongation and longitudinal contraction occur. That is, as shown by the solid line in FIG.
2 fixed surface 18 swells, and this ground surface 19 and fixed surface 1
8 tilts. In contrast to the ground plane 19 and the fixed plane 18 before deformation which are set substantially parallel to each other as shown by the broken line in FIG. 9, the ground plane 19 and the fixed plane 1 after deformation shown by the solid line in FIG.
8 has a tilt angle θ ₁₉ and a tilt angle θ ₁₈ , respectively. When the horseshoe strip 11 thus deformed is attached to the lower surface of the hoof 32 as shown in FIG. 10, the inclination angle θ of the contact surface 19 with respect to the lower surface of the hoof 32 is the sum of θ ₁₉ and θ _18. .

On the outer peripheral surface 20 side of the strip plate 11, the fixed plate 12
And the vertical extension of the ground plate 13 are equal to each other,
The lateral contraction of the fixed plate 12 and the lateral contraction of the ground plate 13 are determined by the respective Poisson ratios. On the inner peripheral surface 21 side of the strip 11, the vertical contraction of the fixed plate 12 and the vertical contraction of the ground plate 13 are equal to each other, and the lateral extension of the fixed plate 12 and the lateral extension of the ground plate 13 are determined by the respective Poisson's ratios. . As the lateral contraction and lateral elongation increase, the inclination angles θ ₁₉ , θ ₁₈
Also increases.

In order to reduce the inclination angles θ ₁₉ and θ ₁₈ , the lateral elongation and the longitudinal contraction on the inner peripheral surface 21 of the band plate 11 are reduced, and the lateral contraction and the longitudinal elongation on the outer peripheral surface 20 of the band plate 11 are reduced. Should be reduced. for that purpose,
It is necessary to reduce the bending moment M (M ₁₂ , M ₁₃ ) required to obtain the same amount of bending in the strip 11. The required bending moment M (M ₁₂ , M ₁₃ ) is the bending rigidity EI
determined by _{z (E 12 I 12, E} 13 I 13). Therefore, the bending rigidity EI _z (E ₁₂ I ₁₂ , E ₁₃ I ₁₃ ) of the strip 11 may be reduced. In this case, since the longitudinal elastic modulus E (E ₁₂ , E ₁₃ ) is constant according to the material, the second moment of area I _z
(I ₁₂ , I ₁₃ ) needs to be reduced. The meat steal 4
6 is obtained by forming in order to reduce the second moment _{I z (I 12, I 13} ).

<Features of First Embodiment> The first embodiment has the following features (other than other technical ideas described later). As described above, due to the stealing, the bending rigidity EI _z of the band plate 11 is reduced to make the band plate 11 easy to bend, the cross-sectional deformation of the band plate 11 is suppressed, the inclination angle θ ₁₉ of the ground plane ₁₉ and the fixed plane 18 of the tilt angle theta ₁₈ can be reduced. Therefore, when the strip 11 is attached to the lower surface of the hoof 32, the inclination angle θ (θ ₁₉ + θ ₁₈ ) of the ground contact surface 19 with respect to the lower surface of the hoof 32 can be reduced. In addition, such meat stealing 46
Was formed not on the outer peripheral surface 20 of the band plate 11 but on the inner peripheral surface 21 which does not hinder use. Further, the area of the fixing surface 12 and the area of the grounding surface 13 can be sufficiently secured so as not to hinder use. Therefore, the horseshoe can be used smoothly without any hindrance to competition or training.

Although not shown, both tail portions 1 of the strip 11 are not shown.
When the strip 11 is bent so that the strips 6 are separated from each other, lateral expansion and longitudinal contraction occur on the outer peripheral surface 20 side of the strip 11 due to compressive stress, and tensile stress occurs on the inner peripheral surface 21 side of the strip 11. This causes lateral shrinkage and longitudinal elongation. In this case,
The ground surface 19 of the ground plate 13 and the fixed surface 18 of the fixed plate 12 bulge toward the outer peripheral surface 20 of the band plate 11, and the inclination angle of the ground surface 19 and the tilt angle of the fixed plate 12 are opposite to those described above. However, the effect of suppressing the cross-sectional deformation by the meat stealing 46 is the same.

[Second Embodiment] Next, a horseshoe according to a second embodiment of the present invention will be described with reference to FIGS.

In the second embodiment, in the first embodiment, each groove 41 of the fixing plate 12 is omitted, and each groove 44 of the strip 11 is constituted only by each groove 39 of the ground plate 13.
The meat steal 46 is formed by each groove 39 of the ground plate 13 and the inclined surface 42. The effect of suppressing the cross-sectional deformation caused by the meat steal 46 is the same as in the first embodiment.

[Third Embodiment] Next, a horseshoe according to a third embodiment of the present invention will be described with reference to FIGS.

In the third embodiment, in the first embodiment, each groove 44 of the strip 11 composed of each groove 39 of the ground plate 13 and each groove 41 of the fixing plate 12 is omitted, and only the inclined surface 42 is used. Have left. The meat steal 46 is formed by the inclined surface 42. The effect of suppressing the cross-sectional deformation caused by the meat steal 46 is the same as in the first embodiment.

[Other Embodiments] In addition to the above embodiments, the following configurations (a) to (e) may be adopted. (A) Although not shown, in the first embodiment, each groove 39 of the ground plate 13 is omitted, and each groove 44 of the strip 11 is constituted only by each groove 41 of the fixed plate 12. The meat steal 46 is formed by each groove 41 of the fixing plate 12 and the inclined surface 42. The effect of suppressing the cross-sectional deformation caused by the meat steal 46 is the same as in the first embodiment.

(B) Although not shown, in the first embodiment or the second embodiment or the above (a), the inclined surface 42
Is omitted, and only each groove 44 is left. The meat steal 46 is formed by each of the grooves 44. The effect of suppressing the cross-sectional deformation caused by the meat steal 46 is the same as in the first embodiment.

(C) Although not shown, in the first embodiment, the grooves 39 of the ground plate 13 and the grooves 41 of the fixed plate 12 constituting the grooves 44 of the band plate 11 are not continuous with each other.
Stagger them.

(D) Although not shown, in the first embodiment, the second embodiment, (a), (b), or (c), each groove 44 is formed only in the head 15 of the band plate 11. I do.

(E) Although not shown, the entire strip plate 11 is formed only of metal. Each groove 44 is formed in the inner peripheral surface 21 of the strip 11. [Other technical ideas] The technical ideas (other than the claims) that can be grasped from the embodiment will be described together with the effects.

* The following (a) (b) (c) (d) (e)
With the configuration (f), the bending rigidity EI _z of the band plate 11 can be further reduced, and the cross-sectional deformation of the band plate 11 can be suppressed.

(A) Configuration Corresponding to the First and Second Embodiments Each groove 39 is continuous with the inner peripheral edge 25 of the grounding surface 19 and the inner peripheral surface 29 of the grounding plate 13 and has an inner peripheral surface thereof. 29
3. The horseshoe according to claim 2, wherein the horseshoe has an open end 45 that is open at the end.

(B) Configuration Corresponding to the First and Second Embodiments Each groove 39 is continuous with the inclined surface 42 of the inner peripheral edge 25 of the grounding surface 19 and the inner peripheral surface 29 of the grounding plate 13. The horseshoe according to claim 4, wherein the horseshoe has an open end (45) that is open at the inner peripheral surface (29).

(C) Configuration Corresponding to the First Embodiment Each groove 41 is continuous with the inner peripheral edge 24 of the fixed surface 18 and the inner peripheral surface 28 of the fixed plate 12, and
6. The horseshoe according to claim 5, wherein the horseshoe has an open end 45 which is open at the end.

(D) Configuration Corresponding to First Embodiment Each of the grooves 39 and 41 is formed between the inner peripheral edge 25 of the ground surface 19 and the ground plate 1.
3 and the inner peripheral surface 28 of the fixing plate 12 and the fixing surface 18
The horseshoe according to claim 6, characterized in that it has an open end (45) which is continuous with the inner peripheral edge (24) and is open at the inner peripheral surfaces (29, 28).

(E) Configuration Corresponding to the First Embodiment Each of the grooves 39 and 41 is formed on the inclined surface 4 of the inner peripheral edge 25 of the grounding surface 19.
3, the inner peripheral surface 29 of the ground plate 13 and the inner peripheral surface 28 of the fixed plate 12
And an inner end 24 of the fixing surface 18 and an open end 4 that is open at the inner peripheral surfaces 29 and 28.
The horseshoe according to claim 7, comprising:

(F) Configuration Corresponding to First Embodiment Each groove 44 is continuous with the inner peripheral edge 25 of the grounding surface 19, the inner peripheral surface 21 of the strip 11, and the inner peripheral edge 24 of the fixed surface 18, and Open end 45 opened on inner peripheral surface 21
The horseshoe according to claim 8, comprising:

With the following configurations (g), (h), (g), and (v), the ground plate 13 can be firmly attached to the fixed plate 12. (G) Configuration corresponding to the first embodiment In claim 6 or claim 7 or (d) or (e), each groove 41 formed in the inner peripheral surface 28 of the fixing plate 12 is Each groove 39 formed in the inner peripheral surface 29
And an inner wall portion 40 that is continuous from

(H) Configuration corresponding to the first embodiment Any one of claims 1 to 7, or (A) or (B) or (C) or (D) or In the above (e), the ground plate 13 is formed integrally with the fixed plate 12 by insert molding.

(I) Configuration Corresponding to the First Embodiment In the above (H), the fixing plate 12 has a hole 33 at a boundary with the ground plate 13 to fill a part 37 of the ground plate 13. .

(N) Configuration Corresponding to the First Embodiment In the above (H) or (I), the fixing plate 12 is
Convex part 34 that enters ground plate 13 at the boundary with ground plate 13
have.

* With the following configuration (l), the ground plate 13
Can be improved in abrasion resistance. (R) Configuration Corresponding to the First Embodiment Any one of claims 1 to 7, or (A) or (B) or (C) or (D) or (E) ) Or the above (f) or the above (g) or the above (h) or the above (li) or the above (nu), the resin used for molding the ground plate 13 is:
Urethane alone or an engineering plastic containing urethane.

[0059]

According to the horseshoe of the present invention, the band plate (1)
Grooves (39, 41, 4) formed in the inner peripheral surface (21) of 1)
4) and the sloping surface (42), etc., so that the strip (46) is formed, the bending rigidity (EI _z ) of the strip (11) is reduced, and the cross-sectional deformation of the strip (11) due to the bending force (47). And the inclination angle (θ) of the ground contact surface (19) with respect to the lower surface of the hoof (32) is reduced, so that the horseshoe can be used smoothly without hindrance to competition or training.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a plane side of a horseshoe according to a first embodiment.

FIG. 2 is a perspective view showing a bottom side of the horseshoe according to the first embodiment.

FIG. 3 is a plan view showing the horseshoe according to the first embodiment.

FIG. 4 is a partially enlarged plan view of FIG. 3;

FIG. 5 is a bottom view showing the horseshoe according to the first embodiment.

FIG. 6 is an enlarged sectional view taken along line 1-1 of FIG. 3;

FIG. 7 is an enlarged sectional view taken along line 2-2 of FIG. 3;

FIG. 8 is an enlarged sectional view taken along line 3-3 of FIG. 3;

FIG. 9 is an operation explanatory view showing a cross-sectional deformation of the horseshoe strip.

FIG. 10 is a partially cutaway side view showing a state where the horseshoe is attached to a hoof.

FIG. 11 is a bottom view showing the horseshoe fixing plate.

FIG. 12 is a partially enlarged sectional view showing a horseshoe according to the second embodiment.

FIG. 13 is a view taken in the direction of the arrow 4-4 in FIG. 12;

FIG. 14 is a bottom view showing the horseshoe according to the third embodiment.

FIG. 15 is an enlarged sectional view taken along line 5-5 of FIG. 14;

FIG. 16 is a perspective view showing a plane side of a conventional horseshoe.

FIG. 17 is an enlarged sectional view taken along line 6-6 of FIG. 14;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 ... Strip plate, 12 ... Fixed plate, 13 ... Ground plate, 14 ... Extension direction, 18 ... Fixed surface, 19 ... Ground surface, 20 ... Outer peripheral surface, 2
DESCRIPTION OF SYMBOLS 1 ... Inner peripheral surface, 22 ... Outer peripheral edge, 23 ... Outer peripheral edge, 24 ... Inner peripheral edge, 25 ... Inner peripheral edge, 28 ... Inner peripheral surface, 29 ... Inner peripheral surface, 32
... hoof, 39 ... groove, 41 ... groove, 42 ... inclined surface, 44 ... groove,
46 ... Stealing meat.

Claims (8)

[Claims] 1. A band plate extending in a substantially U shape is formed into a double structure by a fixing plate made of metal and a ground plate made of resin, and the band plate is fixed to a hoof of an animal. A fixed surface, a ground surface of a ground plate formed substantially parallel to the fixed surface, an outer peripheral surface defined by an outer peripheral edge of the fixed surface and an outer peripheral edge of the ground surface, and an inner peripheral edge of the fixed surface. In a horseshoe having an inner peripheral surface defined by an inner peripheral edge of the ground, the inner peripheral surface of the band plate is formed on an inner peripheral surface of the fixing plate formed along the inner peripheral edge of the fixing surface, and an inner peripheral surface of the ground contact surface. An inner peripheral surface of a ground plate formed along the inner peripheral surface of the ground plate, and formed on the inner peripheral surface of the ground plate a meat steal that can reduce bending rigidity when bending the strip along the fixed surface of the fixed plate. A horseshoe characterized by the fact that: 2. A plurality of grooves, which are open on the inner peripheral surface of the grounding plate, are arranged side by side at intervals in the direction in which the strip plate extends, and the steal is formed by each groove. The horseshoe according to claim 1, characterized in that: 3. An inner peripheral edge of the grounding surface is formed with an inclined surface continuous with the grounding surface and the inner peripheral surface of the grounding plate so as to extend in a direction in which the band plate extends. The horseshoe according to claim 1, wherein the horseshoe is formed. 4. A plurality of grooves, which are open on the inner peripheral surface of the ground plate, are arranged in parallel at intervals in the direction in which the strip plate extends. An inclined surface that is continuous with the ground surface and the inner peripheral surface of the ground plate is formed so as to extend in the extending direction of the strip, and the burglary is formed by each of the grooves and the inclined surface. The horseshoe according to claim 1. 5. A band plate extending in a substantially U shape is formed into a double structure by a fixing plate made of metal and a ground plate made of resin, and the band plate is fixed to a hoof of an animal. A fixed surface, a ground surface of a ground plate formed substantially parallel to the fixed surface, an outer peripheral surface defined by an outer peripheral edge of the fixed surface and an outer peripheral edge of the ground surface, and an inner peripheral edge of the fixed surface. In a horseshoe having an inner peripheral surface defined by an inner peripheral edge of the ground, the inner peripheral surface of the band plate is formed on an inner peripheral surface of the fixing plate formed along the inner peripheral edge of the fixing surface, and an inner peripheral surface of the ground contact surface. An inner peripheral surface of a grounding plate formed along the inner peripheral surface of the fixing plate, and a plurality of grooves opened on the inner peripheral surface are arranged in the inner peripheral surface of the fixing plate at intervals in the extending direction of the strip plate. Set up
A horseshoe characterized in that a groove is formed by each groove so as to reduce bending rigidity when bending the strip along the fixing surface of the fixing plate. 6. A band plate extending in a substantially U shape is formed into a double structure by a fixing plate made of metal and a ground plate made of resin, and the band plate is fixed to a hoof of an animal. A fixed surface, a ground surface of a ground plate formed substantially parallel to the fixed surface, an outer peripheral surface defined by an outer peripheral edge of the fixed surface and an outer peripheral edge of the ground surface, and an inner peripheral edge of the fixed surface. In a horseshoe having an inner peripheral surface defined by an inner peripheral edge of the ground, the inner peripheral surface of the band plate is formed on an inner peripheral surface of the fixing plate formed along the inner peripheral edge of the fixing surface, and an inner peripheral surface of the ground contact surface. And an inner peripheral surface of the ground plate formed along the inner peripheral surface of the ground plate and an inner peripheral surface of the fixed plate. Can be installed side by side with a space in the direction of extension, and each groove can reduce the bending rigidity when bending the strip along the fixing surface of the fixing plate. Horseshoes, characterized in that the formation of the thinned. 7. A substantially U-shaped band plate is formed into a double structure by a metal fixing plate and a resin grounding plate, and the band plate is fixed to an animal hoof. A fixed surface, a ground surface of a ground plate formed substantially parallel to the fixed surface, an outer peripheral surface defined by an outer peripheral edge of the fixed surface and an outer peripheral edge of the ground surface, and an inner peripheral edge of the fixed surface. In a horseshoe having an inner peripheral surface defined by an inner peripheral edge of the ground, the inner peripheral surface of the band plate is formed on an inner peripheral surface of the fixing plate formed along the inner peripheral edge of the fixing surface, and an inner peripheral surface of the ground contact surface. And an inner peripheral surface of the ground plate formed along the inner peripheral surface of the ground plate and an inner peripheral surface of the fixed plate. Are arranged side by side with an interval in the extension direction of the
When the inclined surface that is continuous with the ground surface and the inner peripheral surface of the ground plate is formed so as to extend in the extending direction of the band plate, and the groove and the inclined surface are used to bend the band plate along the fixed surface of the fixed plate. A horseshoe characterized by forming a meat steal that can reduce the bending rigidity of the horseshoe. 8. A strip having a substantially U-shape, the strip having a fixed surface attached to the hoof of the animal, a grounding surface formed substantially parallel to the fixed surface, An inner peripheral surface defined by an outer peripheral edge and an outer peripheral edge of the grounding surface, and an inner peripheral surface defined by an inner peripheral edge of the fixed surface and an inner peripheral edge of the grounding surface; A plurality of grooves, which are opened on the inner peripheral surface, are arranged side by side in the extending direction of the band plate at intervals, and each groove is used to bend the band plate along the fixing surface of the fixing plate. A horseshoe characterized by forming a meat steal that can reduce rigidity.