KR102523484B1 - Baseball supplies including velcro-attached flat-glove and ball - Google Patents

Abstract

According to an embodiment of the present invention, a baseball training material including a glove and a ball attached with Velcro is provided. The baseball training material comprises: a flat glove including a catching surface and a back surface; and a ball with loop-type Velcro attached to an outer circumferential surface. The catching surface of the glove includes an inner shell, an outer shell, a filler interposed between the inner shell and the outer shell, and ring-shaped Velcro located on the outer shell in a thickness direction. In addition, the catching surface of the glove has a flat shape in a surface direction, and includes a streamlined fold joint portion formed on a surface corresponding to a grip line of the palm. According to the present invention, a baseball training material is provided in which a flat glove and a baseball used by professional baseball players for infield defense practice are modified for the purpose. Accordingly, children under elementary school age and adults who are less familiar with baseball can learn a correct catching posture under conditions similar to an actual baseball game.

Description

Baseball training materials including flat gloves and balls with Velcro

The present invention relates to a baseball training material including a flat type glove and a ball attached with Velcro.

Children, including elementary school students, tend to lose interest in baseball practice because it is difficult to catch the ball using a baseball glove and the ball is difficult to catch. For this reason, compared to other ball games such as soccer, volleyball, and table tennis, there has been a problem in that it is relatively difficult to teach baseball while making children interested. In addition, even in the case of adults with little familiarity with baseball, there was a problem that it was difficult to catch the ball well and it was difficult to learn how to catch the ball in a straight posture.

On the other hand, in the case of a general baseball glove, since it is folded around the catch area (web part, cheek part, hinge part), it is easy to instinctively rotate the wrist when catching, so there is a problem that the catch posture is naturally unstable. In order to improve this, it is widely known that flat gloves used for infield defense practice can stabilize all postures during catching and are very effective in improving basic catching skills. 1 is a photograph of the catch surface (a) and the rear surface (b) of a commercially available flat glove. Referring to FIG. 1, the flat glove, as the name itself implies, has a flat catch surface, and the ball is easy to bounce because the glove does not close well inward when catching. To catch the ball with a flat glove, you must cover it with your other hand, and in the case of a ball flying from the side as well as from the front, you must catch it from the front so that the catching surface of the glove is perpendicular to the direction of movement of the ball. For this reason, it can be very difficult for children under elementary school age and adults without baseball experience to practice with a flat glove.

Prior Document 1 (JP 2002-159612 A) is an invention related to a baseball practice tool, glove, and ball, and the loop-shaped fiber on the outer circumferential surface of the ball and the hook-shaped protrusion on the catch surface of the glove are combined to make the ball stick to the glove, so that the catch It is disclosed that it can be easily done. However, there is a limitation that it is difficult to properly catch a flying ball with high speed and rotation under the same conditions as a real baseball game, and it is difficult to practice the correct catch posture by simply attaching Velcro to the surface of the glove and the ball.

Prior Document 2 (DE 09216155 Y) relates to a glove for play other than a baseball glove and a technology for a glove for ball play in which Velcro is attached to the inner surface of the glove and the outer circumferential surface of the ball, and, like Prior Document 1, actual baseball It cannot solve the problem that it is difficult to learn the correct catch posture under the same conditions as the game.

In the present invention, by providing a baseball teaching material in which a flat glove and a baseball ball used for infield defense practice by professional baseball players are modified for the purpose, children of the age group of elementary school or younger and adults who are less familiar with baseball can play in the same conditions as the actual baseball game. Learn the correct catch posture.

One embodiment of the present invention is a flat glove consisting of a muzzle surface and a rear surface; and a ball having a loop-type Velcro attached to an outer circumferential surface thereof, wherein the catch surface of the glove includes an inner shell, an outer shell, a filler interposed between the inner shell and the outer shell, and a ring-shaped Velcro located on the outer shell in the thickness direction. Including, the catch surface of the glove is flat in the surface direction, and provides a baseball teaching material comprising a streamlined folding portion corresponding to the grip line of the palm on the surface.

The first folding joint is formed in a streamlined shape at the boundary line between the first finger portion and the palm portion of the catch surface; and a second folding joint formed in a streamlined shape at the boundary between the second finger portion and the palm portion of the catch surface.

The filler of the glove includes at least one material selected from the group consisting of EVA, foamed silicone, compressed sponge, felt, and rubber, and the filler has a porous structure with a porosity of 10 to 90%, and may satisfy the following relational expression 1 .

[Relationship 1]

5 ≤ T/D (%) < 15

In the relational expression 1, T is the thickness (cm) of the filler, and D is the diameter (cm) of the ball.

The filler may have a gradient in which the thickness of the filler, the volume content of the filler, and/or the weight content of the filler increase from the center to the outer circumferential surface in the surface direction of the muzzle surface.

The rear surface of the glove has a finger portion formed by a partition joint on the surface; and a back of the hand including an inlet portion, wherein the compartment junction portion may be formed by bonding the endothelium of the rear surface and the endothelium of the muzzle surface.

The ball includes an outer skin layer located on an outer circumferential surface, and the outer skin layer includes a loop type Velcro area and a connection portion area including a protrusion on a surface thereof, and the connection portion area has a structure protruding from the loop type Velcro area in the direction of the outer peripheral surface of the ball. And, the protrusion may be formed of a material that is not bound to the ring-shaped Velcro.

In the present invention, it is possible to increase the Velcro fastening time and fastening area during catch by interposing a filling material on the inside of the glove face, covering the outermost surface with a ring-shaped Velcro, and forming a folding joint.

In addition, by uniformly coating a buffer layer containing a buffer material inside the baseball, it is possible to reduce the impact resistance and repulsive force during catch in combination with the characteristics of the glove of the present invention, and as a result, the Velcro binding performance of the glove and the ball is remarkably improved. can be improved

1 is a photograph of the catch surface (a) and the rear surface (b) of a commercially available flat glove.
Figure 2a is a schematic diagram of the catch surface of a flat glove according to an embodiment of the present invention.
Figure 2b is a schematic diagram of the rear surface of a flat glove according to an embodiment of the present invention.
3 is a schematic cross-sectional view of the flat glove muzzle surface shown in FIG. 2A in the thickness direction.
Figure 4a is a schematic diagram of a ball according to an embodiment of the present invention.
Figure 4b is a schematic cross-sectional view of the ball shown in Figure 4a.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used in a meaning commonly understood by those of ordinary skill in the art to which the present invention belongs.

When it is said that a certain part "includes" a component throughout the specification, this means that it may further include other components, not excluding other components unless otherwise stated. In addition, singular forms also include plural forms unless specifically stated in the text.

In this specification, when a part such as a layer, film, region, section, plate, etc. is said to be “on” or “on” another part, this is not only when it is “directly on” the other part, but also when there is another part in the middle. Also includes

In this specification, when the surface that catches the ball in the glove is referred to as the front (outer surface) of the catch surface, and the surface that the user's palm directly touches when wearing the glove is referred to as the rear surface (inner surface) of the catch surface, A direction toward the front may mean a thickness direction of the catch surface.

One embodiment of the present invention provides a baseball training material. Figure 2a is a schematic diagram of the catch surface of a flat glove according to an embodiment of the present invention, Figure 2b is a schematic diagram of the rear surface of a flat glove according to an embodiment of the present invention, Figure 3 is a thickness direction of the flat glove muzzle surface shown in Figure 2a It is a cross-sectional schematic. Referring to Figures 2a, 2b and 3, the baseball training material (1) is a flat glove (flat glove) (100) consisting of a catch surface (110) and a rear surface (150); and a ball (200) to which a loop-type Velcro is attached to an outer circumferential surface. According to the present invention, it is possible to provide a baseball practice tool composed of a glove/ball that enables children under elementary school age and adults who have no familiarity with baseball to stably catch using a glove and to motivate and interest in baseball. there is.

The catch surface 110 of the glove has a flat (flat) shape in the surface direction, and is characterized by forming and including a streamlined folding joint 121 corresponding to the grip line of the palm on the surface. On the other hand, in the case of a general baseball glove, since it is folded around the catch area (web part, cheek part, hinge part), it is easy to instinctively rotate the wrist during catch, and the catch posture naturally becomes unstable. On the other hand, it is a known fact that the flat glove can stabilize all postures during catching and is very effective in improving basic catching skills. However, in general, a flat glove is formed with a flat catch surface, and the ball is easy to bounce because the glove does not close well inward when catching. To catch the ball with a flat glove, you must cover it with your other hand, and in the case of a ball flying from the side as well as from the front, you must catch it from the front so that the catching surface of the glove is perpendicular to the direction of movement of the ball. For this reason, it can be very difficult for children under elementary school age and adults without baseball experience to use a flat glove. Therefore, in the present invention, by forming a folding joint on the surface corresponding to the grip line of the palm so that the inserted hand can move freely, children with weak strength and inexperienced adults can catch successfully while maintaining the training effect of the flat glove. there will be

The surface of the glove catch surface 110 includes a first finger portion 123a including a thumb portion (thumb portion); a second finger portion 123b including a detection finger, a middle finger, a ring finger, and a holding portion (pinky finger); And it may be configured to include a palm portion (125).

The first finger portion 123a and the second finger portion 123b are connected to the glove by the partition junctions 161 and 161' on the rear surface in the thumb, detection, middle, ring, and holding parts, as described later. Each of the inserted fingers may be seated on the corresponding region of the muzzle surface. Accordingly, since all fingers can be used when catching, an accurate catching posture can be implemented.

The palm part 125 includes a hair part located below the hair part; a holding part (hinge) located under the holding part; and a ball collector located at the center of the catch surface and on which the flying ball rests.

Here, the first finger portion 123a; a second finger portion 123b; And the palm part 125 only specifies the region where each part of the inserted hand comes into contact with the muzzle surface by position, and may not be a physically separated region.

On the other hand, in the case of generally commercial gloves, a web portion is formed and included between the first finger portion and the second finger portion detecting portion, but the glove of the present invention may be characterized in that it does not include a web portion. The most suitable buccal area is located between the thumb and index finger (see the highlighted circle in Fig. 2a). A glove with a web part can cause an error trying to catch the ball with the web, so it can be a hindrance to learning the correct catch posture.

The fold joints 121 and 121' may be formed by joining the inner skin 131, the filler 133, and the outer skin 135 of the catch surface to correspond to the seating line of the ball. The bonding method is not particularly limited, but preferably may be to penetrate the muzzle surface from the inner skin to the outer skin and then connect them using a strap material such as leather. Here, the seating line of the ball may mean a streamlined line in which the palm is folded when holding an object in the central area of the palm of the human body. Commercial flat gloves require effort to get in by using felt, hinges, etc. on hard natural leather. In fact, an adult baseball player cannot easily bend his hand while wearing a flat glove. In addition, since the repulsive force is high as described above due to high hardness, there is a disadvantageous side to Velcro binding. The flat glove according to one embodiment of the present invention can be used immediately without the need for a separate break-in process as the folding joint is formed, has a high catch success rate, and has high light weight and impact resistance, so it may be more suitable for baseball beginners. As a result, even if a general ball is used, high convenience can be provided with an effect similar to that of existing products.

The folding parts 121 and 121' are formed in a streamlined shape at the boundary between the first finger part 123a and the palm part 125 of the muzzle surface and the second finger part 123b of the muzzle surface. It may include a second folding joint formed in a streamlined shape at the boundary between the palm part 125 and the palm part 125 .

It is important that a finger can be bent at an appropriate timing to catch a ball by the folding joint (piping), so that the feeling of catching can be enhanced. In addition, since the shape of the glove can be maintained, and children (elementary school students and younger) can bend it with minimal grip strength, there is a side effect of easily catching the ball. In addition, in the case of a high-speed pitch in which rectilinear and rotational motions are simultaneously performed, a strong elastic repulsive force is generated in an irregular direction even when the pitch is seated in the cheek area of the catch surface. Therefore, in the catch surface positioned perpendicular to the direction in which the ball flies, the binding may be weak only with the Velcro formed on the flat front surface. In the present invention, since the flat glove can be partially bent through the folding joint, it is possible to increase the Velcro fastening area by making surface contact rather than point contact between the seated ball and the catch surface of the glove.

In the glove 100, the buccal surface 110 of the glove has an inner shell 131, an outer shell 135 in the thickness direction, a filler 133 interposed between the inner shell and the outer shell, and a ring-shaped Velcro positioned on the outer shell. (137). The glove catch face 110 puts the hand into the space between the catch face 110 and the rear face 150 through the glove mouth 166, and at this time, the catch face 110 is located in a direction in contact with the palm, , It may be formed including an inner shell 131, a filler 133, an outer shell 135, and a ring-shaped Velcro 137 sequentially based on the thickness direction from the inside where the palm is located toward the surface to catch the ball.

The inner shell 131 and the outer shell 135 are leather such as natural leather and artificial leather, natural fibers such as cotton, wool, silk, and hemp, synthetic fibers such as polyester, acrylic, nylon, spandex, polyurethane, and polyolefin, Alternatively, it may be manufactured by including a combination thereof, and materials used for the inner and outer skins of conventional baseball gloves may be applied. The outer skin and inner skin can protect the body from a ball flying at high speed and give the function of mitigating the shock when caught. On the other hand, since durability is not sufficient only with Velcro (fiber) formed on the outermost surface of the glove, durability of the glove catch surface can be increased by attaching Velcro to the outer shell.

The filler 133 is interposed between the inner shell and the outer shell, and may include at least one selected from the group consisting of foamed or unfoamed ethylene vinyl acetate (EVA), foamed silicone, compressed sponge, felt, and rubber. Alternatively, it may be preferable to include EVA and/or foamed silicone based on shock absorption, durability, and light weight.

Accordingly, since it is possible to impart more improved durability to shock mitigation during catching and maintenance of the outer appearance of the glove, there is an effect of suppressing the fear of catching. However, since the present invention uses a baseball ball with seams formed on its surface, the speed and impact of the flying ball are greater than those of general practice balls, and straight motion and rotational motion are simultaneously performed in the flying ball. In addition, since the glove catch surface and the outer circumferential surface of the ball are each formed by including Velcro of a highly elastic plastic material and have a flat shape, even if caught in a straight posture, the amount of impact generated on the glove surface increases and the ball rebounds, making it difficult to catch. there is a side Accordingly, in the present invention, since a filler made of a specific material is used so that it can be compressed during catch, i) there is an effect of increasing the Velcro binding area by increasing the contact area between the catch surface of the glove and the ball, and ii) the Velcro binding time has the effect of increasing iii) Here, the Velcro binding performance can be remarkably improved.

In addition, the filler 133 may have a porous structure having a porosity of 10 to 90%, 20 to 80%, or 30 to 50%, and may satisfy the following relational expression 1.

[Relationship 1] 5 ≤ T/D (%) < 15

In the relational expression 1, T is the thickness (cm) of the filler, and D is the diameter (cm) of the ball.

In the relational expression 1, 5 ≤ T / D < 15%. When the filler satisfies the porosity in the above-described range and the thickness exceeds the lower limit of the relational expression 1, the Velcro binding time and binding area can be increased as the filler is sufficiently compressed during catch, thereby improving the Velcro binding performance. there is. On the other hand, if it is less than the upper limit, the movement of the hand inserted into the glove becomes free, so all postures can be stabilized at the time of catch.

On the other hand, the porosity of the filler can be measured using the BET (specific surface area) gas adsorption method, which adsorbs gas (generally nitrogen) on the sample to measure the specific surface area of the sample surface and the size and distribution of pores. It is an analysis that can analyze even closed micropores by the method (Pore size analysis range: 0.35 nm - 200 nm). However, the present invention is not limited thereto.

In addition, the thickness of the filler 133, the volume of the filler, from the center (cheek area) to the outer circumferential surface (the outer circumferential surface of the finger part, the outer circumferential surface of the palm part, the joint area between the muzzle surface and the back surface) in the surface direction of the muzzle surface. It may have a gradient in which the content and/or the weight content of the filler increases. That is, the catch accuracy can be increased by forming the filler of the catch surface slightly concave in the center (cheek part) in the surface direction. Accordingly, it is possible to prevent the glove from being tilted back by a strong ball, and an accurate catch feeling can be felt.

The ring-shaped Velcro 137 may be located on the shell and formed on the outermost surface of the glove mouth surface. The loop-type Velcro may be bound to a plurality of loop-shaped fibers (loop-type Velcro) formed on the outer circumferential surface of the ball. Even if the ball cannot be caught well with a normal glove due to the weak grip, when the ball enters the catch surface of the glove, it can be successfully caught by the Velcro fastening.

The ring-type Velcro 137 may be formed on the outer shell by 70% or more, 80% or more, or 90% or more of the outer surface area of the glove catch surface 110, and for example, 30 to 70 (number of rings / cm ² ) and a Velcro ring size (ring height) of 1 to 5 mm. Specifically, the Velcro ring density may be 35 to 65 (number of rings/cm ² ), 40 to 60 (number of rings/cm ² ) or 45 to 55 (number of rings/cm ² ), and the size of the Velcro ring (ring height) ) may be 1 to 4 mm, 1 to 3 mm, or 1.5 to 2.5 mm, but the present invention is not limited thereto.

The rear surface 150 of the glove corresponds to a portion in contact with each region of the catch surface, and includes a first finger portion 163a including a thumb portion (thumb portion) on the rear surface; a second finger portion 163b including a detection finger, a middle finger, a ring finger, and a holding portion (pinky finger); It may be configured to include; and the back of the hand 165 including the acquisition unit.

The first finger portion 163a and the second finger portion 163b may include a thumb portion, a detecting portion, a middle finger portion, a ring finger portion, and a holding portion formed by being partitioned by the partition joint portion 161 . Of course, since there is also a glove in which the finger portion is one of the four fingers except for the thumb (moji), such as a first baseman's glove used in an actual baseball game, the number of finger portions may be provided differently depending on the purpose. Of course. In addition, the compartment junction part 161 forms a compartment in the space where the hand is located between the rear surface 150 and the muzzle surface 110 by bonding the endothelium (not shown) of the rear surface and the endothelium 131 of the muzzle surface. By doing so, each finger can be inserted separately and the glove can be easily bent according to the movement of the hand. Therefore, it is possible to learn the sense of catching the ball using the entire finger. Due to the posture of opening the hand, the psychological stability of the hand can be improved and an environment in which the wrist can be used more smoothly can be provided. In addition, injuries that may occur due to finger exposure can be prevented, and air permeability can be increased when the back surface is improved with a mesh material.

The back of the hand 165 on the back has a surface area larger than the surface area of the palm so that it can be bent according to the shape of the human hand, and is located on the upper surface of the palm 125 on the catch surface, and the finger portion on the back (163a, 163b) located at the bottom. Here, the back of the hand 165 may be formed of a plurality of surfaces including an inner skin (not shown) and an outer skin (not shown), but may be provided with a single surface, and may not include a filler.

The back of the hand 165 includes an inlet portion 166, and the inlet portion may be formed so that the hand can be inserted into a place where the wrist part is located according to the shape of the human hand when the glove is worn. Physical characteristics, such as the shape, size, material, and location of the inlet, are not particularly limited as long as they are generally applied to baseball gloves.

The rear surface 150 may be made of a material used to manufacture the inner or outer shell of the muzzle surface, for example, leather such as natural leather or artificial leather, polyester, acrylic, nylon, spandex, polyurethane, It may be made of materials such as synthetic fibers such as polyolefin, or a combination thereof. It may be made of the same or different material as the catch surface.

In addition, by bonding the outer circumferential surface of the bristle portion and the outer circumferential surface of the holding portion to the muzzle surface and the rear surface of the glove, respectively, a space for a glove user to obtain can be formed, and durability of the glove can be enhanced.

The ball 200 according to one embodiment of the present invention includes an outer skin layer 210 located on an outer circumferential surface, and the outer skin layer includes a loop-type Velcro area 211 and a connection portion area 215.

The loop-type Velcro area 211 may be a loop-type Velcro 212 formed with a uniform thickness and area on the outer circumferential surface of the ball so that it can be bound to the ring-type Velcro 137 on the glove muzzle surface. The loop-type Velcro 212 may be formed on the surface of acrylic fiber.

The acrylic fiber including the loop-type Velcro 212 may have fluff (minimum strands of acrylic fiber, filling) formed on the surface, and the fluff may include loop-type Velcro. The pilling resistance (anti-pilling, Pilling Grade) of the acrylic fiber including the loop-type Velcro may be 3.5 or less, 0.5 to 3.5, 1 to 3.5, 1 to 3, or 1 to 2.5. Here, the fluff of the acrylic fiber can be bound to the ring of the Velcro of the glove, and the acrylic yarn has high strength and elongation and is uniform, so that when the fiber is rubbed or scratched, the fiber comes out without breaking and clumps on the surface of the fabric. It has a low peeling property. Accordingly, when yarn is produced by spinning acrylic yarn, a structure in which fluff is easily attached to the ring-shaped Velcro of the glove is formed.

On the other hand, pilling resistance can be measured according to the ICI box method (Korean Industrial Standard, KS K 0503 Pilling Test Method for Knitted Fabrics) or ASTM D 3514 criterion, grade using a pilling resistance tester, grade (1 to 5 grades) The higher this is, the less fluffing is evaluated.

The connection area 215 may include protrusions (stitches) 216 divided by a boundary line, and the protrusions 216 may be formed of two lines of circumferential bands. These circumferential bands generally have the same effect as 108 seams (seams) formed on the outer circumferential surface of a baseball. That is, the uneven surface of the baseball due to seams serves to reduce the vortex generated at the rear of the flying ball, so that the baseball can fly higher, farther, and faster. In addition, it is possible to use a breaking ball like a baseball for a game, and since the same effect as a real game can be expected, it is possible to practice the correct pitching posture.

Meanwhile, the connection area 215 of the skin layer 210 may have a structure protruding from the loop-type Velcro area 211 in the direction of the outer circumferential surface of the ball. Thus, the above-mentioned effect can be further expressed. In addition, the protruding portion of the ball connection area and the ring-shaped Velcro of the glove face satisfy the following relational expression 2, so that the above-described effects expressed from the seams formed on the baseball and sufficient Velcro binding performance of the present invention can be maintained.

[Relationship 2]

0.1 < L ₂ /L ₁ < 1

In the relational expression 2, L ₁ is the size (mm) of the loop-type Velcro on the glove muzzle surface, and L ₂ is the protruding length of the joint region of the ball (difference in length between the protrusion and the loop-type Velcro region, mm).

In relational expression 2, 0.1 < L ₂ /L ₁ < 0.9, 0.1 < L ₂ /L ₁ < 0.8, or 0.1 < L ₂ /L ₁ < 0.5, and the above-described effect can be further improved.

The protruding part may be formed of a material that is not bound to the ring-shaped Velcro and included, for example, a yarn such as a nylon thread, a polyester thread, a polyolefin thread, a polyacrylate thread, and a spandex thread; And rubber; may include at least one selected from the group consisting of. When using a material (e.g., wool, cotton thread, acrylic thread, etc.) used in conventional gloves for the protrusions, there is a concern that tearing defects may occur when using the glove of the present invention.

The ball 200 of the present invention, for example, covers the surface of the inner core material 230 or the surface of the buffer layer 220 with an "8"-shaped outer shell (piece) made of two pieces, and connects the outer shell pieces to each other ( 215) is sewn with a thread forming a seam, and the stitched part of the thread is tightened to form a protruding band of a certain height at the connection part. Alternatively, the protruding portion 216 may be formed by making the outer surface of the buffer layer 220 have a raised seam shape. In this case, the ball may be manufactured in such a way that the connection part is omitted and the skin layer 210 is strongly adhered to the buffer layer 220 .

The ball 200 according to an embodiment of the present invention includes an inner core 230; and an outer skin layer 210 disposed on the inner core material and including a loop-type Velcro.

The inner core material 230 may include a core 231 including cork, hard urethane, soft urethane, or a combination thereof, and a rubber coating layer 233 disposed on the core.

The core 231 of the inner core material and the rubber coating layer 233 are important components for maintaining the shape of a ball and adjusting elastic reaction force. Natural rubber (NR), butadiene rubber (BR), styrene butadiene rubber (SBR), acrylonitrile butadiene rubber (NBR), or a combination thereof may be used as the rubber coating layer 233, and one rubber coating layer may be used if necessary. Alternatively, two or more different rubbers may be formed into a plurality of layers. Meanwhile, the core may exist as an empty space as needed.

The outer skin layer 210 may be located on the inner core material 230, pressurized and coated to compensate for the elasticity of the inner core material. Other configurations and effects are as described above.

The ball 200 according to another embodiment of the present invention, the inner core material 230; a buffer layer 220 positioned on the inner core material; And located on the buffer layer, the outer layer 210 including a loop-type Velcro; may include.

The inner core material 230 and the outer skin layer 210 are the same as those described above.

The buffer layer 220 is located between the inner core material 230 and the outer skin layer 210, and includes a seal layer 221 including wool, cotton, acrylic yarn, polyester yarn, or a combination thereof; And it may include a buffer unit 223 located on the real layer. The buffer layer serves to adjust the coefficient of restitution. To this end, the density of the yarn layer 221, which is somewhat weak in elasticity, may be increased or the material of the soft layer portion 223 may be adjusted. Alternatively, the repelling force of the ball 200 may be reduced by omitting the real layer 221 and adjusting the thickness of the buffer 223 .

The seal layer 221 may densely surround the core 231 and the rubber coating layer 233 and may serve as a buffer to stably maintain the spherical shape of the inner core material. The yarn layer 235 may be made of wool, cotton, acrylic yarn, polyester yarn, or a combination thereof.

The buffer part 223 is located on the yarn layer 221 and may be used to increase the density of the yarn layer with slightly less elasticity and at the same time lower the elastic force of the ball. The buffer unit 223 may be obtained by coating the surface of the seal layer 221 with at least one layer having a uniform thickness, and may include soft urethane, soft polyvinyl chloride resin (PVC), low/medium density polyethylene (LDPE, At least selected from the group consisting of plastic materials having relatively low hardness such as MDPE) and rubber materials such as natural rubber (NR), butadiene rubber (BR), styrene butadiene rubber (SBR), and acrylonitrile butadiene rubber (NBR) It may be formed by uniformly covering one.

On the other hand, the ball 200 of the present invention is not particularly limited as long as it is a ball that can be used for general (formal/practice/training) baseball activities such as softball, hardball, softball, and safety baseball. An appropriate ball can be selected considering the characteristics required in the situation. On the other hand, by significantly lowering the coefficient of restitution of the ball or using a bet with low repulsive force, it is possible to operate a baseball game indoors, such as a general school gymnasium.

The present invention interposes the filling material 133 inside the catch surface 110 of the glove 100, covers the outermost surface with a ring-shaped Velcro 137, and forms the folding joints 121 and 121', thereby catching Velcro fastening time and area can be increased. In addition to this, by uniformly coating the inside of the ball 200 with the buffer layer 220 containing a buffering soft plastic material, it is possible to significantly reduce the impact resistance and repelling force in combination with the characteristics of the glove, and collectively the glove 100 And the Velcro binding performance of the ball 200 can be significantly improved.

Preferred examples and comparative examples of the present invention are described below. However, the following example is only a preferred embodiment of the present invention, but the present invention is not limited to the following example.

Example

(Example 1)

A flat glove according to an embodiment of the present invention was manufactured as shown in the glove schematic diagram of FIGS. 2a, 2b and 3. At this time, the catch surface of the glove has a flat shape, and was manufactured to form a streamlined folding joint in the surface direction. The inner and outer skins were formed with artificial leather in the thickness direction of the glove face, an EVA filler was interposed between the inner and outer skins, and a ring-shaped Velcro was attached to the entire surface of the outer skin.

As shown in the schematic diagrams of FIGS. 4A and 4B, a ball having a loop-type Velcro attached to the outer circumferential surface according to an embodiment of the present invention was manufactured.

Experimental example

[Experimental Example 1] : Performance evaluation according to the availability of key components of the glove

(Example 2)

Velcro was formed only on the palm part 125 including the ball part of the muzzle surface, the cap part, and the small part, and the other areas (finger part (123a, 123b) = hair part, detecting part, middle part, ring finger part, and holding part ) did not form Velcro. At this time, Velcro was formed on about 30% of the total area of the outer shell.

(Comparative Examples 1 to 4)

No Velcro is formed on the outer skin surface (Comparative Example 1), no filler is interposed between the inner skin and outer skin (Comparative Example 2), or a streamlined folding joint is not formed on the buccal surface of the glove (Comparative Example 3) A flat glove and a ball were prepared in the same manner as in Example 1 except for.

(Assessment Methods)

Examples 1 to 2 and Comparative Examples 1 to 3 and Ref. (Mizuno Co., training glove GXT3A)) balls and gloves were used, and the ball was pitched at a distance of 15 m at a speed of 50 km/h using a baseball pitching machine. (throw), and 10 elementary school students (5th grade) (5 elementary school students without baseball experience, 5 elementary school baseball team members) each caught the ball 10 times. For 100 total pitches (throws), the number of times the ball was safely caught in the glove was recorded, and the results are shown in Table 1 below as a success rate (percentage).

Formation of main components of glove Evaluation result - catch success rate (%) velcro
(area%) filling fold joint No experience success rate baseball success rate average success rate Example 1 ○(100%) ○ ○ 70 82 76 Example 2 ○(30%) ○ ○ 58 80 69 Comparative Example 1 Х ○ ○ 20 64 42 Comparative Example 2 ○(100%) Х ○ 42 76 59 Comparative Example 3 ○(100%) ○ Х 24 68 46 Ref. Х Х Х 14 32 23

(In Table 1, Reference is a commercially available flat glove, and the ball is the same as Example 1)

Referring to Table 1, when using the gloves manufactured in Examples 1 and 2, despite the flat type of glove, the catch surface forms Velcro on the outer surface, and the filler is interposed therein to form a folding joint (pipe). As a result of easily attracting the ball to the ball house by forming a , it was confirmed that a very high level of catch is possible, such as a 70% catch success rate even for inexperienced baseball players. However, it is analyzed that the catch success rate is slightly reduced when the Velcro is formed only in the cheek area of the muzzle surface and the area to which the Velcro is applied is 30% or less.

On the other hand, in the case of Comparative Example not including all the essential components of the present invention, it was found that the catch average success rate was significantly lowered compared to Example 1. In particular, in Comparative Examples 1 and 3, there were many cases in which the pitched (thrown) ball bounced out of the ball as a reaction even if it safely entered the area of the ball's ball. Comparative Example 2 showed a somewhat higher success rate than Comparative Examples 1 and 3 when the filler was not included, but there were often cases in which the ball bounced out of the cheek bag, and the catch posture and position were disturbed due to fear caused by high impact during catch. There were many.

On the other hand, since the commercially available (Ref) flat glove has a remarkably low average catch success rate, it is somewhat unreasonable to use it as a training material for baseball practice for elementary school students or younger.

[Experimental Example 2] : Evaluation of impact resistance at the time of catch according to the change of filler material

(Examples 3 to 5)

A glove was manufactured in the same manner as in Example 1, except for applying the filler properties described in Table 2 below.

(Assessment Methods)

Examples 1, 3 to 5 and Ref. (Mizuno Co., training glove GXT3A)) balls and gloves were used, and pitching (throwing) and catching were performed in the same manner as in Experimental Example 1.

The impact felt by each evaluator was evaluated on a relative scale between 1 and 5 points (1-point interval) with Ref. as a 5-point scale, and the average results are shown in Table 2 below.

filler properties Evaluation results Relationship 1 (T/D, %) Porosity of filler (%) impact degree (points) Example 1 5 10% 2.6 Example 3 5 50% 1.6 Example 4 One 10% 4.5 Example 5 30 10% One Ref. - - 5

(In Table 2, in the relational expression 1, T is the thickness (cm) of the filler, D is the diameter (cm) of the ball, and the higher the value, the greater the impact.)

Referring to Table 2, in the case of Example 3, in which the porosity of the filler falls within the preferred range of the present invention, the pores of the filler are compressed during catch and the probability of Velcro binding increases as the time the ball stays in the ball increases. It is expected to be very effective in improving the player's performance by forming a more accurate catch posture and position by reducing fear as it effectively absorbs the impact applied to the ball.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be manufactured in various different forms, and those skilled in the art to which the present invention belongs can understand the technical spirit of the present invention. However, it will be understood that it may be embodied in other specific forms without changing its essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

1: baseball teaching materials 100: glove
110: (glove) catch surface 121, 121 ': (grasp surface) folding joint
123a: (bucking surface) first finger part 123b: (bucking surface) second finger part
125: (buckle surface) palm part 131: (buckle surface) endothelium
133: (buzz surface) filler 135: (buzz surface) outer shell
137: (buzz face) looped Velcro 150: (glove) back
161: (back) partition joint 163a: (rear) first finger
163b: (back) second finger part 165: (back) back of the hand
166: (rear) inlet 200: ball
210: outer skin layer 211: Velcro area
212: loop type Velcro 215: joint area
216: outgoing part (seam) 220: buffer layer
221: real floor 223: soft floor
230: inner core 231: core
233: rubber coating layer

Claims (6)

A flat glove consisting of a muzzle surface and a back surface; And a ball (ball) attached to the loop-type Velcro on the outer circumferential surface; includes,
The muzzle surface of the flat glove includes an inner skin, an outer skin, a filler interposed between the inner skin and the outer skin in the thickness direction, and a ring-shaped Velcro positioned on the outer skin,
The catch surface of the flat glove is flat in the surface direction,
The catch surface of the flat glove does not include a web portion on the surface, and includes a streamlined folding portion corresponding to the grip line of the palm,
The ring-type Velcro is formed by 70% or more of the outer skin area of the glove catch surface,
The filler includes at least one material selected from the group consisting of EVA, foamed silicone, compressed sponge, felt, and rubber, has a porous structure with a porosity of 10 to 90%, and satisfies the following relational expression 1,
The folding portion includes a first folding joint formed in a streamlined shape at the boundary between the first finger portion and the palm portion of the catch surface and a second folded joint formed in a streamlined shape at the boundary line between the second finger portion and palm portion on the catch surface. thing
Baseball teaching material characterized by:
[Relationship 1]
5 ≤ T/D (%) < 15
In the relational expression 1, T is the thickness (cm) of the filler, and D is the diameter (cm) of the ball. delete delete According to claim 1,
The filler has a gradient in which the thickness of the filler, the volume content of the filler and / or the weight content of the filler increases from the center to the outer circumferential surface in the surface direction of the catch surface. According to claim 1,
The rear surface of the flat glove has a finger portion formed by a partition joint on the surface; It is configured to include; and the back of the hand including the acquisition part,
The partition junction is formed by bonding the endothelium of the rear surface and the endothelium of the muzzle surface, baseball training material. According to claim 1,
The ball includes an outer skin layer located on the outer circumferential surface,
The outer skin layer includes a loop-type Velcro area on a surface and a connection area including a protrusion,
The connection area has a structure that protrudes from the loop-type Velcro area in the direction of the outer circumferential surface of the ball, and the protrusion is formed of a material that is not bound to the loop-type Velcro.

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