This nonprovisional application is based on Japanese Patent Application No. 2004-150619 filed with the Japan Patent Office on May 20, 2004, the entire contents of which are hereby incorporated by reference.
1. Field of the Invention
The present invention relates to a catching tool and a method of designing a catching tool, and more particularly, it relates to a catching tool such as a baseball or softball glove and a method of designing this catching tool.
2. Description of the Background Art
For example, Japanese Patent Laying-Open No. 2002-126153 (Conventional Example 1) describes a conventional catching tool.
Conventional Example 1 discloses a catching tool comprising a front leather member formed by sewing a leather pocket portion and a leather back face portion, a back leather member, inserted in the front leather member, formed by sewing a leather palm portion and a leather back portion and a core member, stored in the front leather member, having reinforcing side portions.
“A study of finger pressure distribution at catching a ball in the baseball glove” by Norikazu NINOMIYA et al. (the Japan Society of Mechanical Engineers “No. 00-38” Symposium Lecture Collection, the Japan Society of Mechanical Engineers, Corporation Aggregate, November 2000, p. 17-20) (Conventional Example 2) discloses a method of measuring finger pressure distribution in a baseball glove at the time of catching a ball with a thin grip distribution measuring system.
However, the aforementioned catching tool has the following problem:
At the time of catching a ball, movements of the fingers of a wearer of the catching tool vary with the wearer having characteristics specific to his/her position, for example. Therefore, it is desirable to provide a catching tool enabling the wearer to readily catch a ball in response to his/her manner of application of finger power.
However, neither Conventional Example 1 nor Conventional Example 2 discloses the idea of designing a catching tool responsive to the characteristics of finger movements of the wearer.
From a viewpoint different from the above, neither Conventional Example 1 nor Conventional Example 2 discloses an idea of providing a reinforcer on an inner leather palm (palm portion).
An object of the present invention is to provide a catching tool enabling the wearer to readily catch a ball and a method of designing this catching tool.
According to an aspect, the inventive catching tool comprises an outer leather member including a pocket portion and a back face portion, an inner leather member, inserted in the outer leather member, having a palm portion provided along the pocket portion and a back portion provided along the back face portion and a reinforcing portion selectively provided on a part of the palm portion corresponding to the vicinity of the tips of four fingers, i.e., the index finger, the middle finger, the ring finger and the little finger of a wearer of the catching tool received in finger portions formed between the back portion and the palm portion.
Thus, power applied from the fingertips of the wearer to the catching tool is so readily transmitted to the periphery that the wearer can readily catch a ball as a result.
As an example, the aforementioned reinforcing portion is formed to extend from the part corresponding to the vicinity of the tips of the four fingers toward the bases of the four fingers.
Thus, power applied from the bases of the fingers to the catching tool is readily transmitted to the periphery along with the power applied from the fingertips.
According to another aspect, the inventive catching tool comprises an outer leather member including a pocket portion and a back face portion, an inner leather member, inserted in the outer leather member, having a palm portion provided along the pocket portion and a back portion provided along the back face portion and a reinforcing portion selectively provided on a part of the palm portion in the vicinity of portions corresponding to only two fingers, i.e., the ring finger and the little finger of a wearer of the catching tool received in finger portions formed between the back portion and the palm portion.
Thus, power applied from the ring and little fingers of the wearer to the catching tool is so readily transmitted to the periphery that the wearer can readily catch a ball as a result.
As an example, the aforementioned reinforcing portion is formed to extend from the part corresponding to the vicinity of the tips of the aforementioned two fingers toward the bases of the two fingers.
Thus, power applied from the entire ring and little fingers of the wearer to the catching tool is readily transmitted to the periphery.
As another example, the aforementioned reinforcing portion is formed to extend from the p art corresponding to the vicinity of the tips of the aforementioned two fingers toward the forward ends of the finger portions receiving the two fingers.
Thus, power applied from the ring and little fingers to the catching tool is readily transmitted to the forward ends of the finger portions of the catching tool.
According to still another aspect, the inventive catching tool comprises an outer leather member including a pocket portion and a back face portion, an inner leather member, inserted in the outer leather member, having a palm portion provided along the pocket portion and a back portion provided along the back face portion and a reinforcing portion selectively provided on a part of the palm portion in the vicinity of portions corresponding to only three fingers, i.e., the middle finger, the ring finger and the little finger of a wearer of the catching tool received in finger portions formed between the back portion and the palm portion.
Thus, power applied from the middle, ring and little fingers of the wearer to the catching tool is so readily transmitted to the periphery that the wearer can readily catch a ball as a result.
As an example, the aforementioned reinforcing portion is formed to extend from the part corresponding to the vicinity of the tips of the aforementioned three fingers toward the bases of the three fingers.
Thus, power applied from the entire middle, ring and little fingers to the catching tool is readily transmitted to the periphery.
As another example, the aforementioned reinforcing portion is formed to extend from the part corresponding to the vicinity of the tips of the aforementioned three fingers toward the forward ends of the finger portions receiving the three fingers.
Thus, power applied from the middle, ring and little fingers to the catching tool is readily transmitted to the forward ends of the finger portions of the catching tool.
According to a further aspect, the inventive catching tool comprises an outer leather member including a pocket portion and a back face portion, an inner leather member, inserted in the outer leather member, having a palm portion provided along the pocket portion, a back portion provided along the back face portion as well as an index finger portion, a middle finger portion, a ring finger portion and a little finger portion receiving the index finger, the middle finger, the ring finger and the little finger of a wearer of the catching tool respectively and a reinforcing portion selectively provided on a part of the palm portion forming the bases of the index finger portion, the middle finger portion, the ring finger portion and the little finger portion.
According to a further aspect, the inventive catching tool comprises an outer leather member including a pocket portion and a back face portion, an inner leather member, inserted in the outer leather member, having a palm portion provided along the pocket portion, a back portion provided along the back face portion as well as a ring finger portion and a little finger portion receiving the ring finger and the little finger of a wearer of the catching tool respectively and a reinforcing portion selectively provided on a part of the palm portion forming the bases of the ring finger portion and the little finger portion.
According to a further aspect, the inventive catching tool comprises an outer leather member including a pocket portion and a back face portion, an inner leather member, inserted in the outer leather member, having a palm portion provided along the pocket portion, a back portion provided along the back face portion as well as a middle finger portion, a ring finger portion and a little finger portion receiving the middle finger, the ring finger and the little finger of a wearer of the catching tool respectively and a reinforcing portion selectively provided on a part of the palm portion forming the bases of the middle finger portion, the ring finger portion and the little finger portion.
According to a further aspect, the inventive catching tool, comprising a pocket portion and a back face portion, is selectively provided with a reinforcing portion only in the vicinity of a part, inside the pocket portion, for locating the tip of any finger of a wearer of the catching tool.
According to a further aspect, the inventive catching tool, comprising a pocket portion and a back face portion, is selectively provided with a reinforcing portion only on parts, inside the pocket portion, corresponding to the ring finger and the little finger of a wearer of the catching tool.
According to a further aspect, the inventive catching tool, comprising a pocket portion and a back face portion, is selectively provided with a reinforcing portion only on parts, inside the pocket portion, corresponding to the middle finger, the ring finger and the little finger of a wearer of the catching tool.
Also according to any of the aforementioned structures, power applied from any fingertip or the entire one of a specific finger of the wearer to the catching too is so readily transmitted to the periphery that the wearer can readily catch a ball as a result.
The aforementioned “parts corresponding to the middle finger, the ring finger and the little finger” indicate part or all of regions between portions of the catching tool where the middle, ring and little fingers of the wearer are located and the forward ends of a middle fingerstall, a ring fingerstall and a little fingerstall respectively.
A method of designing a catching tool according to the present invention comprises the steps of measuring distribution of pressure applied by the fingers of a wearer of the catching tool to the catching tool when catching a ball with a pressure sensor and providing a reinforcing portion on a portion receiving relatively large pressure inside a pocket portion in the catching tool on the basis of a result of measurement in the measuring step
Thus, it is possible to improve the rigidity of portions to which the wearer applies relatively large pressure when catching a ball, for transmitting power applied from the fingers of the wear to a relatively wide range. Consequently, it is possible to provide a catching tool enabling the wearer to readily catch a ball.
According to the present invention, as hereinabove described, it is possible to enable the wearer to readily catch a ball with the catching tool by arranging the reinforcing portion in response to the characteristics of the manner of the wearer applying his/her finger power when catching a ball.
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.
Embodiments of a catching tool according to the present invention and a method of designing this catching tool are now described.
Throughout the specification, the term “catching tool” indicates a tool such as a baseball or softball glove or a mitt for catching a ball.
The catching tool according to this embodiment comprises an outer leather member including a pocket portion and a back face portion, an inner leather member, inserted in the outer leather member, having a palm portion provided along the pocket portion and a back portion provided along the back face portion, finger portions formed between the back portion and the palm portion for receiving the fingers of a wearer of the catching tool and a reinforcing portion selectively provided on a specific part of the palm portion.
The part of the palm portion provided with the reinforcing portion has relatively higher rigidity as compared with the peripheral portion thereof Therefore, power applied onto the reinforcing portion is readily transmitted to the periphery (more specifically, the forward ends of the respective fingerstalls, for example).
The reinforcing portion is typically formed by superpositively mounting (sewing or pasting) a reinforcing member on (to) the palm portion. The reinforcing member may be prepared from the same material as the palm portion or a material harder or softener than that for the palm portion.
The reinforcing portion may be provided on the inner side surface of the pocket portion of the outer leather member or on the surface of the palm portion of the inner leather member closer to the pocket portion or the hand of a wearer of the catching tool.
Alternatively, the reinforcing portion may be formed by partially cutting off the palm portion and providing a member harder than the palm portion or by partially soaking the palm portion with a hardener, for example.
The reinforcing portion is provided on a part corresponding to a portion to which the wearer applies relatively larger power when catching a ball. Thus, the power applied by the wearer can be transmitted to a wider range, so that the wearer can readily catch the ball as a result.
The portion to which the wearer applies relatively larger power when catching a ball, varying with each player, can conceivably be classified in a constant range. For example, a method of classifying the portion in response to the fielding position of the player is conceivable.
For example, a first baseman tends to concentrate power to the entire middle and ring fingers and a portion around the base of the little finger. A second baseman or a shortstop tends to concentrate power to the thumb and the forward ends of the middle to little fingers. When making a back-handed catch, however, the second baseman or the shortstop tends to concentrate power to the entire middle and ring fingers and a portion around the base of the little finger. A third baseman tends to concentrate power to the thumb and the entire middle to little fingers. Further, an outfielder tends to concentrate power to the thumb and the entire ring and little fingers.
Thus, the portion to which the player concentrates power when catching a ball can be classified in response to the position of the player, and hence it is effective set the position of the reinforcing member in response to the player's position.
The reinforcing member may be arranged on a portion corresponding to the vicinity of the tips of four fingers, i.e., the index, middle, ring and little fingers of the wearer, a portion corresponding to the vicinity of only three fingers, i.e., the middle, ring and little fingers, a portion corresponding to the vicinity of only two fingers, i.e., the ring and little fingers, for example.
A catching tool prepared by arranging a reinforcing member on the portion corresponding to the vicinity of the tips of the aforementioned four fingers (index to little fingers) is typically employed by a second baseman or a shortstop. The second baseman or the shortstop tends to concentrate power to the fingertips when catching a ball as hereinabove described, and hence the power applied by the wearer can be transmitted to a wider range by selectively arranging the reinforcing member on the portion corresponding to the vicinity of the fingertips. Consequently, the wearer can readily catch a ball with this catching tool.
In this case, the reinforcing member may be formed to extend from the portion corresponding to the vicinity of the tips of the four fingers toward the bases of the four fingers.
Thus, power applied from the bases of the fingers to the catching tool can be readily transmitted to the periphery along with power applied from the fingertips.
A catching tool prepared by arranging a reinforcing member on the portion corresponding to the vicinity of only the aforementioned three fingers (middle to little fingers) is typically employed by a third baseman. The third baseman tends to concentrate power to the middle, ring and little fingers when catching a ball as described above, and hence power applied by the wearer can be transmitted to a wider range by selectively arranging the reinforcing portion on the portion corresponding to the vicinity of the aforementioned three fingers.
In this case, the reinforcing member may be formed to extend from the portion corresponding to the vicinity of the tips of the three fingers toward the bases of the three fingers, or to extend from the portion corresponding to the vicinity of the tips of the three fingers toward the forward ends of the finger portions receiving the three fingers.
Thus, power applied from the middle, ring and little fingers to the catching tool is readily transmitted to the periphery. Alternatively, power applied from the middle, ring and little fingers to the catching tool is readily transmitted to the forward ends of the fingerstalls of the catching tool.
A catching tool prepared by arranging a reinforcing member on the portion corresponding to the vicinity of only the aforementioned two fingers (ring and little fingers) is typically employed by an outfielder. The outfielder tends to concentrate power to the ring and little fingers when catching a ball as described above, and hence power applied by the wearer can be transmitted to a wider range by selectively arranging the reinforcing member on the portion corresponding to the vicinity of the aforementioned two fingers. Consequently, the wearer can readily catch a ball with this catching tool.
In this case, the reinforcing member may be formed to extend from the portion corresponding to the vicinity of the tips of the two fingers, or to extend from the portion corresponding to the vicinity of the tips of the two fingers toward the forward ends of the finger portions receiving the two fingers.
Thus, power applied from the entire ring and little fingers to the catching tool is readily transmitted to the periphery. Alternatively, power applied from the ring and little fingers to the catching tool is readily transmitted to the forward ends of the fingerstalls of the catching tool.
A part of the palm portion coming into contact with the index to little fingers of the wearer corresponds to a portion in the vicinity of the bases of the index, middle, ring and little finger portions of the catching tool receiving the index, middle, ring and little fingers of the wearer respectively.
In other words, therefore, the catching tool according to this embodiment comprises an outer leather member including a pocket portion and a back face portion, an inner leather member having a palm portion, inserted in the outer leather member, provided along the pocket portion, a back portion provided along the back face portion as well as index, middle, ring and little finger portions receiving the index, middle, ring and little fingers of a wearer of the catching tool respectively and a reinforcing portion selectively provided on a part of the palm portion forming the bases of specific finger portions.
The finger portions provided with the reinforcing portion on the bases thereof are the index, middle, ring and little finger portions according to an aspect (for a second baseman or a shortstop), the middle, ring and little finger portions according to another aspect (for a third baseman), and the ring and little finger portions according to still another aspect (for an outfielder).
While the aforementioned catching tool comprises the outer leather member and the inner leather member, the present invention is not restricted to such a catching tool but any catching tool is included in the present invention so far as a reinforcing portion is provided on a prescribed position inside a pocket portion.
From this point of view, the aforementioned catching tool is summarized as follows: The catching tool according to this embodiment comprises a pocket portion and a back face portion, and is selectively provided with a reinforcing portion only on a prescribed part inside the pocket portion.
The reinforcing portion may conceivably be provided in the vicinity of portions for locating the fingertips of the wearer, portions corresponding to the ring and little fingers of the wearer (part or all of regions between the portions for locating the ring and little fingers of the wearer and the forward ends of the ring and little finger portions, portions corresponding to the middle, ring and little fingers of the wearer (part or all of regions between the portions for locating the middle, ring and little fingers of the wearer and the forward ends of the middle, ring and little finger portions) or the like.
This embodiment provides a catching tool with which the wearer can readily catch a ball in response to the manner of applying finger power when catching the ball.
A method of designing the aforementioned catching tool is now described.
As shown in
Referring to
For example, Glove Scan by Nitta Corporation is employed as the sensor unit 17. The thickness of the sensor unit 17 is about 0.15 mm, and the size of the overall sensor unit 17 is about 200 by 400 mm. The size of each sensor part 18 is about 16 by 16 mm. The sensor unit 17 has 320 (20 by 4 by 4) measuring points, for measuring pressure applied to each measuring point every 0.01 seconds in the range of about 2 to 200 kPa.
Exemplary relation between lapses of time in a ball catching operation and results of measurement through the sensor unit 17 (the magnitude of power applied by the wearer of a catching tool to the catching tool) is described with reference to
Referring to
Referring to
The results of measurement through the sensor unit 17 are displayed on a hand model shown in
From the results shown in
As to the aforementioned contents, the method of designing a catching tool is summarized as follows: The method of designing a catching tool according to this embodiment comprises the steps of measuring distribution of pressure applied by the fingers of a wearer of the catching tool to the catching tool when catching a ball with a sensor unit 17 (pressure sensor) and providing a reinforcing portion on a part receiving relatively large pressure inside a pocket portion of the catching tool on the basis of a result of measurement in the measuring step.
A glove 1 according to Example 1 of the present invention comprises an outer leather member 1A formed by binding an outer leather pocket portion (pocket portion) 8 including a pocket portion and an outer leather back face portion (back face portion) 9 with each other with leather strings or the like. This outer leather member 1A is constituted of a material mainly composed of a material such as natural leather or synthetic leather, for example.
As shown in
As shown in
The glove 1 is formed by inserting an inner leather member 12 comprising a palm member (palm portion or inner leather palm portion) 12A and a back member (back portion or inner leather back portion) 12B into the aforementioned outer leather member 1A and binding the inner leather member 12 and the outer leather member 1A with each other with leather strings or the like.
As shown in
This inner leather member 12 has a thumb portion 120A, an index finger portion (first finger portion) 120B, a middle finger portion (second finger portion) 120C, a ring finger portion (third finger portion) 120D and a little finger portion (fourth finger portion) 120E receiving the thumb, the index finger, the middle finger, the ring finger and the little finger of the wearer respectively. The thumb portion 120A and the little finger portion 120E are provided with thumb/finger holders 13 for fixing the thumb and the little finger in the thumb portion 120A and the finger portion 120E respectively.
The palm member 12A and the back member 12B are made of softly tanned leather in consideration of touch of the wearer wearing the glove 1.
Referring to
The arrangement of the reinforcer (reinforcing portion) 15 on the palm member (inner leather palm portion) 12A of the glove 1 is described with reference to
Referring to
Production efficiency can be improved by reinforcing the tips of the index to little fingers with the single reinforcer 15 as shown in
The glove 1 according to Example 1 is typically employed by a second baseman or a shortstop.
The reinforcer 15 is constituted of cowhide, ball leather or laminated fabric.
A glove 1 according to Example 2 of the present invention is a modification of the glove 1 according to the aforementioned Example 1, and basically has a structure similar to that of the glove 1 according to Example 1.
Referring to
It is possible to ensure flexibility of the glove 1 by dividing the reinforcer 15 into four portions as shown in
The glove 1 according to Example 2 is typically employed by a second baseman or a shortstop.
In relation to items of Example 2 similar to those of the aforementioned Example 1, redundant description is not repeated.
A glove 1 according to Example 3 of the present invention is a modification of the glove 1 according to each of the aforementioned Examples 1 and 2, and basically has a structure similar to that of the glove 1 according to each of Examples 1 and 2.
Referring to
The reinforcer 15 is so provided in the integrally coupled manner with notches as shown in
The glove 1 according to Example 3 is typically employed by a second baseman or a shortstop.
In relation to items of Example 3 similar to those of the aforementioned Examples 1 and 2, redundant description is not repeated.
A glove 1 according to Example 4 of the present invention is a modification of the glove 1 according to each of the aforementioned Examples 1 to 3, and basically has a structure similar to that of the glove 1 according to each of the aforementioned Examples 1 to 3.
Referring to
The reinforcer 15 is so taperingly formed as shown in
The glove 1 according to Example 4 is typically employed by a second baseman or a shortstop.
In relation to items of Example 4 similar to those of the aforementioned Examples 1 to 3, redundant description is not repeated.
A glove 1 according to Example 5 of the present invention is a modification of the glove 1 according to each of the aforementioned Examples 1 to 4, and basically has a structure similar to that of the glove 1 according to each of the aforementioned Example 1 to 4.
Referring to
The reinforcer 15 is so extended toward the forward ends of the glove 1 as shown in
The glove 1 according to Example 5 is typically employed by a second baseman or a shortstop.
In relation to items of Example 5 similar to those of the aforementioned Examples 1 to 4, redundant description is not repeated.
A glove 1 according to Example 6 of the present invention is a modification of the glove 1 according to each of the aforementioned Example 1 to 5, and basically has a structure similar to that of the glove 1 according to each of the aforementioned Examples 1 to 5.
Referring to
The reinforcer 15 is so singly formed as shown in
The glove 1 according to Example 6 is typically employed by an outfielder.
In relation to items of Example 6 similar to those of the aforementioned Examples 1 to 5, redundant description is not repeated.
A glove 1 according to Example 7 of the present invention is a modification of the glove 1 according to each of the aforementioned Examples 1 to 6, and basically has a structure similar to that of the glove 1 according to each of the aforementioned Examples 1 to 6.
Referring to
The reinforcer 15 is so divided into two portions as shown in
The glove 1 according to Example 7 is typically employed by an outfielder.
In relation to items of Example 7 similar to those of the aforementioned Examples 1 to 6, redundant description is not repeated.
A glove 1 according to Example 8 of the present invention is a modification of the glove 1 according to each of the aforementioned Examples 1 to 7, and basically has a structure similar to that of the glove 1 according to each of the aforementioned Examples 1 to 7.
Referring to
The reinforcer 15 is so extended toward the forward end of the glove 1 as shown in
The glove 1 according to Example 8 is typically employed by an outfielder.
In relation to items of Example 8 similar to those of the aforementioned Examples 1 to 7, redundant description is not repeated.
A glove 1 according to Example 9 of the present invention is a modification of the glove 1 according to each of the aforementioned Examples 1 to 8, and basically has a structure similar to that of the glove 1 according to each of the aforementioned Examples 1 to 8.
As shown in
The reinforcer 15 is provided not from the bases but from the central portions of the fingers as shown in
The glove 1 according to Example 9 is typically employed by an outfielder.
In relation to items of Example 9 similar to those of the aforementioned Examples 1 to 8, redundant description is not repeated.
A glove 1 according to Example 10 of the present invention is a modification of the glove 1 according to the aforementioned Example 6 (
The glove 1 according to Example 10 is typically employed by a third baseman.
In relation to items of Example 10 similar to those of the aforementioned Example 6, redundant description is not repeated.
A glove 1 according to Example 11 of the present invention is a modification of the glove 1 according to the aforementioned Example 7 (
The glove 1 according to Example 11 is typically employed by a third baseman.
In relation to items of Example 11 similar to those of the aforementioned Example 7, redundant description is not repeated.
A glove 1 according to Example 12 of the present invention is a modification of the glove 1 according to the aforementioned Example 8 (
The glove 1 according to Example 12 is typically employed by a third baseman.
In relation to items of Example 12 similar to those of the aforementioned Example 8, redundant description is not repeated.
A glove 1 according to Example 13 of the present invention is a modification of the glove 1 according to the aforementioned Example 9 (
The glove 1 according to Example 13 is typically employed by a third baseman.
In relation to items of Example 13 similar to those of the aforementioned Example 9, redundant description is not repeated.
The effect (improvement of ball grasping power) of the aforementioned reinforcer 15 provided on each glove 1 is now described. The gloves 1 according to Examples 3 and 9 are employed for verifying the effect.
A state of measuring power for grasping a ball 14 with a glove 1 through a load meter 16 is described with reference to
Referring to
On the other hand, the aforementioned sensor unit 17 is attached to the hand of the wearer of the glove 1. If the power applied from the load meter 16 for opening the glove 1 exceeds power for closing the forward end of the glove 1, the ball 14 drops from the glove 1. The sensor unit 17 measures the power of the wearer grasping the glove 1 when the ball 14 drops. The monitor 16C displays the magnitude of the power for opening the glove 1 when the ball 14 drops.
In order to simply perform the aforementioned measurement, a spring balance is employed as the load meter 16.
Results of comparison (cases 1 to, 5) related to transmission rates of power for grasping the ball 14 with the glove 1 are described with reference to
In the cases 1 to 3 (
Referring to
Referring to
While the embodiment and Examples of the present invention have been described, proper combination of characteristic portions of the aforementioned embodiment and Examples has been planned from the first.
Although the present invention has been described and illustrated in detail, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, the spirit and scope of the present invention being limited only by the terms of the appended claims.
Number | Date | Country | Kind |
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2004-150619 | May 2004 | JP | national |
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63-38563 | Mar 1988 | JP |
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08-229181 | Sep 1996 | JP |
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Number | Date | Country | |
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20050268367 A1 | Dec 2005 | US |