JP3003154U - Claw halo - Google Patents

Abstract

(57) [Summary] [Purpose] Suitable for use on dirt courses such as racetracks and equestrian fields for leveling the dirt surface such as sand,
The structure of the claw member is changed so as to have a scooping angle, and the flow of sand that is scraped out is changed to enable leveling by vertical stirring. [Structure] The claw halo (2) of the present invention is a dart leveling halo that does not have a rotating tool, and the claw member (1) attached to the claw halo body (2) is roughly L when the tip is viewed downward. The bottom surface (3) of the L-shaped claw member has an L-shaped vertical cross-section and is inclined upward with respect to the pulling direction. Here, the inclination of the bottom surface (3) of the claw member with respect to the dirt surface (GG) is set to be a rake angle with respect to the dirt (sand).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dart leveling halo without a rotating tool used in a racetrack or equestrian field. More specifically, it is used in a dirt course of a racetrack or equestrian field, and has a flat dart surface such as sand. The present invention relates to a nail halo having a nail that is preferably improved for chemical leveling.

[0002]

[Prior art]

 The so-called claw halo claws (members) that have been conventionally used on racecourses and dirt courses at equestrian fields are made of flat steel, as illustrated in (a), (b) and (c) of FIG. As a claw member (11), the halo body (21) is inclined perpendicularly to the dirt surface (GG) and inclined to the right (or left) about 15 degrees (β) with respect to the advancing direction (T) with a certain interval. It is known that a hundred dozen of them have been installed. In FIG. 4, (a) is a partial front view, (b) is a schematic side view taken along the line aa in (a), and (c) is a schematic cross-sectional view taken along the line bb in (b). In addition, G is a dirt surface (sand surface), S'is a conceptual sand flow, T is a pulling advancing direction, and β is an inclination angle (opposite advancing direction) of the claw member (11).

On a dirt course of a racetrack, by pulling this kind of halo (21) in the direction of travel (T), the sand was splashed to the right (or left) as shown in the figure, and was generated by the hoof of a horse leg. The irregularities on the sand surface (GG) are flattened.

[0004]

[Problems to be solved by the device]

 However, it is ideal that the dirt of the dirt course has a uniform density and material at a certain depth (clearing depth; about 10 cm) to the tip of the nail. There is a problem in that the antifreeze agent and special fibers in the sand are gradually deposited downwards and the uniformity of the upper layer and the lower layer cannot be maintained simply by being bounced off (or left) and moving.

The present invention has been made in view of the above circumstances, and solves the above problems and provides a claw member having a scooping angle with respect to sand for leveling on a dirt course of a racetrack or a riding course. It is an object of the present invention to provide a claw halo that can change the flow of sand that is scraped out by changing the structure, and that mainly enables vertical landing for leveling.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is a claw halo used for dirt leveling in a racetrack or a riding course, which does not have a rotating tool, and in which the claw member attached to the halo body has its tip end viewed downward. It has a generally L-shaped vertical cross section, and the bottom surface of the L-shaped claw member is inclined upward ascending with respect to the direction of traction, and this inclination angle is the scooping angle with respect to the dirt. It is what

Further, the claw member is a bent claw having a substantially L-shaped vertical section formed by bending a flat steel substantially vertically at a tip portion thereof, and is tilted forward with respect to a pulling traveling direction and is a claw halo. It may be attached to the main body. Here, a combination of conventional tilts to the right or to the left with respect to the direction of travel can be used.

[0008]

[Action]

 By pulling the claw halo in the direction of travel, the sand up to the depth of the claw is agitated (scraped) in the vertical direction. In addition, the sand is agitated (scraped) in the direction of synthesis according to the conventional installation with a combination of inclinations.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a partial front view illustrating a bent claw of a claw halo that is an embodiment of the present invention, and FIG. 2 is a schematic side view taken along the line AA in FIG. It is a cross-sectional schematic diagram. Here, 1 is a claw member (curved claw), 2 is a claw halo (main body), and 3 is a bottom surface of the claw member. G is the surface of the dirt, S is the flow of sand, T is the direction of traction, and α is the rake angle.

As shown in the figure, the claw halo (2) of the present invention is a dart leveling halo without a rotating tool that is used for dirt leveling in a racetrack or a riding field, and the claw halo main body (2). The claw member (1) attached to has a generally L-shaped vertical cross section with its tip end facing downward, and the bottom surface (3) of the L-shaped claw member rises to the rear with respect to the traction traveling direction (T). It is inclined to. Here, the inclination of the bottom surface (3) of the claw member constitutes the rake angle (α) with respect to the dirt (sand).

The claw member (1) is a bent claw having a substantially L-shaped longitudinal section formed by bending flat steel substantially vertically at the tip end thereof, and the bottom surface (3) of the claw member (3) is in the traction traveling direction (T). ) Is attached to the claw halo body (2) by tilting forward so that it has a scooping angle (α). (Fig. 2)

It should be noted that the scooping angle (α) may be appropriately adjusted (variably adjusted) in accordance with the riding ground condition of the dirt, but it can be said that normally 15 ° to 30 ° is preferable.

Then, by pulling the claw halo (2) in the traveling direction (T), the sand from the dirt surface (GG) to the depth of the claw tip is agitated and scraped in the vertical direction, and conceptually, as shown in FIG. A sand flow (S) as shown in 2 can be generated.

However, the bent claw (1) does not necessarily stick to the vertical bending. For example, when the forward mounting to the claw halo main body (2) is disliked, the bending method may be changed so as to have a rake angle (α) together with the mounting.

Further, as shown in FIG. 3, when the conventional inclination (β) is attached to the right (or left) with respect to the pulling direction (T), the sand is agitated (scraped) in the synthetic direction. Will be. As described above, the direction in which the sand is scraped (stirred) along with the approach angle (scooping angle α) to the dirt surface may be appropriately changed within the scope of protection of the present invention.

[0016]

[Effect of device]

 According to the present invention, the density and material uniformity are maintained from the upper layer to the lower layer of the sand at the clearing depth and the unevenness of the sand surface due to the hoof of the horse leg is flattened. Since it is possible to achieve effective leveling, it is particularly effective for leveling dirt tracks on racecourses.

[Brief description of drawings]

FIG. 1 is a partial front view illustrating a bent claw of a claw halo that is an embodiment of the present invention.

FIG. 2 is a schematic side view taken along the line AA in FIG. 1 and a schematic cross-sectional view taken along the line BB in the figure.

FIG. 3 is a partial front view showing another embodiment of the present invention.

FIG. 4 is an explanatory view showing a claw member of a conventional claw halo, (a) is a partial front view, and (b) is a- in (a).
a side schematic view in the direction of arrow a, and (c) is bb in (b).
It is a cross-sectional schematic diagram of an arrow.

[Explanation of symbols]

 1 Claw member (curved claw) 2 Claw halo (main body) 3 Claw member bottom surface 11 Claw member 21 Halo (main body) G Dirt surface (sand surface) S Sand flow S'Sand flow T Towing advancing direction α Slope angle β Slope Corner (opposite direction)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuo Goto 2350 C5 Building 2350 Shinta Miura-mura, Inashiki-gun, Ibaraki 302 (72) Inventor Kaei Motohashi Oto Edozaki-96-5 (72) Inventor, Edosaki-cho, Inashiki-gun, Ibaraki Author Akio Miyagi 490 Arahari, Ritto-cho, Kurita-gun, Shiga Prefecture (72) Inventor Jutaro Wada 3-2-5, Sansuji, Saiki-ku, Hiroshima-shi, Hiroshima

Claims (2)

[Scope of utility model registration request] 1. A dart leveling harrow used in a racetrack or a riding field and having no rotating tool, wherein a claw member attached to the harrow body has a substantially L-shaped vertical cross section with its tip end facing downward, A claw halo characterized in that the bottom surface of the L-shaped claw member is inclined upward with respect to the direction of traction, and this inclination is a scooping angle with respect to the dirt. 2. The claw member is a bent claw having a generally L-shaped vertical cross section formed by bending flat steel substantially vertically at a tip end thereof.
The claw halo according to claim 1, wherein the claw halo is attached to the claw halo main body by tilting forward with respect to the pulling direction.