JP2021052824A - bat - Google Patents

Abstract

To provide a bat capable of making an elastic body thick, while suppressing weight increase.SOLUTION: A hole-in-one part area 9 of a core material 3 has a shape that is asymmetrical on one side and the other side in a first direction with respect to a center O of a hole-in-one part 13 on a cross section, and one side face 15 facing one side in the first direction is formed in an elliptic shape having a major axis in a second direction crossing the first direction or in a planar shape along the second direction, and an elastic body 5 has an outer peripheral shape that is symmetrical on one side and the other side in the first direction, and has a relatively thick part 5a adjacent to the one side face of the hole-in-one part area in the first direction according to the asymmetrical shape of the hole-in-one part area 9 of the core material 3.SELECTED DRAWING: Figure 2

Description

The present invention relates to a ball game bat having an elastic body in a ball striking portion.

As a conventional bat, for example, there is one described in Patent Document 1. This bat includes a cylindrical base member which is a core material, and a cylindrical elastic body integrated into a portion of the base member which should be a hitting portion.

With a bat having such a configuration, the flight distance of the hit ball can be improved by the repulsive force of the elastic body or the like. Further, if the repulsive force of the elastic body is improved, the flight distance can be further improved.

However, in order to improve the repulsive force of the elastic body, it is conceivable to make the cylindrical elastic body thicker, which causes an increase in weight.

Japanese Unexamined Patent Publication No. 2003-19263

The problem to be solved is that thickening the elastic body causes an increase in weight.

The present invention is a bat having a hitting portion composed of a core material having a hitting portion region and an elastic body attached to the hitting portion region, and the hitting portion region of the core material is the hitting ball in a cross section. An ellipse having a shape that is asymmetrical between one side and the other side in the first direction with respect to the center of the portion, and one side surface facing the one side in the first direction has a major axis in the second direction intersecting the first direction. The elastic body is formed in a shape or a plane shape along the second direction, and the elastic body has a symmetrical outer peripheral shape on one side and the other side in the first direction, and the ball striking portion region of the core material is asymmetrical. The most main feature is a bat having a relative thick portion adjacent to one side surface of the hitting portion region in the first direction according to the shape.

In the present invention, since a thick portion can be provided in a part of the elastic body according to the asymmetrical shape of the ball striking portion region of the core material, the elastic body can be thickened while suppressing an increase in weight. ..

Further, in the present invention, the angle of the hit ball can be adjusted according to the direction of one side surface of the hitting portion region of the core material.

Further, in the present invention, since the center of gravity of the hitting portion is deviated to one side in the first direction, the position of the center of gravity of the hitting portion is changed up and down according to the direction of one side surface of the hitting portion region, and the ball The amount of spin can be adjusted.

It is a vertical cross-sectional view which shows the bat (Example 1). It is a cross-sectional view of the bat which concerns on line II-II of FIG. 1 (Example 1). It is a perspective view which shows the core material of the bat of FIG. 1 (Example 1). It is a bottom view of the core material of FIG. 3 (Example 1). It is a conceptual diagram which shows the relationship between a bat and a ball at the time of hitting a ball (Example 1). It is a conceptual diagram which shows the relationship between a bat and a ball at the time of hitting a ball (Example 1). It is a cross-sectional view of a bat (Example 2). It is a perspective view which shows the core material of the bat of FIG. 7 (Example 2). It is a bottom view of the core material of FIG. 8 (Example 2). It is a vertical cross-sectional view which shows the bat which omitted the grip part (Example 3). It is a cross-sectional view of the bat of FIG. 10 (Example 3). It is a cross-sectional view of a bat (Example 4). It is a cross-sectional view of a bat (Example 5).

The purpose of thickening the elastic body while suppressing the increase in weight was realized while making the angle of the hit ball and the amount of spin adjustable.

That is, in the embodiment of the present invention, the bat has a core material having a ball striking portion region and a ball striking portion composed of an elastic body attached to the ball striking portion region, and the ball striking portion region of the core material has a cross section. An ellipse having a shape that is asymmetrical between one side and the other side in the first direction with respect to the center of the hitting portion in the above, and one side surface facing one side in the first direction has a major axis in the second direction intersecting the first direction. The elastic body is formed in a shape or a plane shape along the second direction, and the elastic body has a symmetrical outer peripheral shape on one side and the other side in the first direction, depending on the asymmetric shape of the ball striking portion region of the core material. It has a relative thick portion adjacent to one side surface of the hitting portion region in the first direction.

The center of the hitting portion region of the core material may be eccentric to the other side in the first direction with respect to the center of the hitting portion.

The hitting portion region of the core material may have a configuration in which the other side surface facing the other side in the first direction of the hitting portion has a shape different from that of one side surface.

The elastic body includes a tubular main body portion and a surface layer portion that covers the surface of the main body portion, and the thick-walled portion may be formed by making a part of the main body portion relatively thick.

In this case, the main body of the elastic body may be urethane foam resin.

One side surface of the hitting portion region may be configured to be located on the other side of the first direction with respect to the center of the hitting portion.

The hitting portion region may be formed in a hollow shape, and one side portion constituting one side surface may be thinner than the other portion.

[Bat structure]
FIG. 1 is a vertical cross-sectional view showing a bat according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view of FIG. 1 according to line II-II. FIG. 3 is a perspective view showing the core material of the bat of FIG. FIG. 4 is a bottom view of the core material of FIG. In addition, in FIG. 3 and FIG. 4, the grip end is omitted.

The bat 1 of this embodiment is used for ball games such as baseball and softball. The bat includes a core material 3 and an elastic body 5 attached to the core material.

The core material 3 is a hollow rod-shaped body made of fiber reinforced plastic (FRP). In this embodiment, carbon fiber reinforced plastic (CFRP) is used as the FRP. The material of the core material 3 is not limited to FRP, and metal, wood, or the like can be used. Further, the core material 3 may have a solid rod shape.

The wall thickness of the core material 3 is set to be substantially uniform as a whole. However, the wall thickness of the core material 3 can be partially thinned or thickened.

The core material 3 includes a grip portion 7, a ball striking portion region 9, and a head portion 11 from the base end side to the tip end side.

The grip portion 7 is a cylindrical portion gripped by the batter. A grip end 7a projecting in the radial direction is integrally provided at the base end of the grip portion 7. A ball striking portion region 9 is integrally provided at the tip of the grip portion 7.

The hitting portion region 9 is a part of the core material 3 constituting the hitting portion 13 together with the elastic body 5. The hitting portion region 9 of this embodiment has a shape that is asymmetrical between one side and the other side in the first direction with respect to the center O of the hitting portion 13 in the cross section. The first direction is the left-right direction in FIG.

The hitting portion region 9 has one side surface 15 facing one side in the first direction of the hitting portion 13 and another side surface 17 facing the other side in the first direction of the hitting portion 13.

One side surface 15 of the ball striking portion region 9 of this embodiment is formed in a plane shape along a second direction intersecting the first direction in the cross section. As a result, one side surface 15 has a flat surface portion 15a along the second direction.

The second direction is the vertical direction shown in FIG. The second direction of this embodiment is orthogonal to the first direction, but it does not have to be orthogonal as long as it intersects the first direction.

The flat surface portion 15a makes it possible to catch the ball B (see FIGS. 5 and 6) on the surface when the ball is hit by the hitting portion 13. Therefore, the length L of the flat surface portion 15a along the second direction is preferably long.

In this embodiment, the length L of the flat surface portion 15a is set to be larger than the outer diameter R of the ball striking portion 13. However, the length L of the flat surface portion 15a is not limited, and may be set smaller than the outer diameter R of the ball striking portion 13.

Further, one side surface 15 of this embodiment has a hyperelliptic shape, and is also an elliptical shape having a major axis r1 in the second direction.

The major axis r1 of one side surface 15 coincides with the diameter r3 of the other side surface 17. The minor diameter r2 of one side surface 15 coincides with the diameter r4 of the grip portion 7, and is about 1/3 of the major diameter r1. Therefore, the amount of protrusion of the hitting portion 13 from the center O in the first direction of the one side surface 15 is smaller than that of the other side surface 17.

The minor diameter r2 of one side surface 15 may be smaller or larger than the diameter r4 of the grip portion 7 depending on the thickness of the thick portion 5a of the elastic body 5 described later. Further, the length relationship between the minor axis r2 and the major axis r1 of one side surface 15 can be appropriately set according to the thickness of the thick portion 5a of the elastic body 5.

The other side surface 17 of the hitting portion region 9 is formed in an arc shape in the cross section. Therefore, the other side surface 17 has a shape different from that of the one side surface 15. The other side surface 17 of this embodiment is formed in a semicircular shape along the outer circumference of the ball striking portion 13. The shape of the other side surface 17 can be appropriately set as long as the hitting portion region 9 is asymmetrical between one side and the other side in the first direction with respect to the center O of the hitting portion 13 in the cross section.

The shape of the hitting portion region 9 of this embodiment gradually increases in cross section toward the tip end side of the bat 1. The other side surface 17 of the hitting portion region 9 is formed in a tapered shape. On the tip side of the hitting portion region 9, the shape of the hitting portion region 9 in the cross section becomes substantially constant, and the transition to the head portion 11 integrally occurs.

The head portion 11 is formed in a disk shape. The head portion 11 bulges in the radial direction with respect to the hitting portion region 9. The outer diameter of the head portion 11 is substantially the same as the outer diameter R of the hitting portion 13.

The elastic body 5 is attached to the hitting portion region 9, and constitutes the hitting portion 13 together with the hitting portion region 9 as described above. The elastic body 5 deforms together with the ball B at the time of hitting the ball, suppresses the amount of deformation of the ball B, and applies a repulsive force to the ball B. The elastic body 5 of this embodiment includes a main body portion 19 and a surface layer portion 21.

The main body 19 is a hollow cylinder and is made of a foamed polyurethane resin or the like which is a thermoplastic elastomer. The material of the main body 19 is not limited as long as it can be deformed together with the ball B at the time of hitting the ball.

The outer diameter of the main body 19 of this embodiment gradually increases from the base end side to the tip end side, and the outer diameter becomes substantially constant on the tip end side as in the ball striking portion region 9 of the core material 3. The surface 19a of the main body 19 is covered with the surface layer 21.

The surface layer portion 21 protects the main body portion 19 and is formed in the shape of a cylindrical film made of a thermoplastic resin or the like. The surface layer portion 21 of this embodiment is made of a polyurethane film and is integrally provided on the surface 19a of the main body portion 19. The material of the surface layer portion 21 is not limited as long as it can be deformed together with the ball B as the elastic body 5. Further, the surface layer portion 21 can be omitted.

The elastic body 5 has an outer peripheral shape that is symmetrical between one side and the other side in the first direction. Further, the elastic body 5 has a relative thick portion 5a according to the asymmetrical shape of the hitting portion region 9 of the core material 3.

The thick portion 5a is provided adjacent to one side surface 15 of the ball striking portion region 9 of the core material 3 in the first direction. The thickness of the thick portion 5a in the first direction is larger than that of the relative thin portion 5b. The thin-walled portion 5b is provided adjacent to the other side surface 17 of the ball striking portion region 9 of the core material 3 in the first direction.

The thick portion 5a of the present embodiment is thick in the first direction because the amount of protrusion of one side surface 15 from the center O of the ball striking portion 13 in the first direction is smaller than the amount of protrusion of the other side surface 17. Is formed in. As a result, the thick portion 5a fills the difference in the amount of protrusion between the one side and the other side of the core material 3, and the outer peripheral shape of the ball striking portion 13 is symmetrical between the one side and the other side in the first direction. It is designed to have a unique shape.

The thick portion 5a of this embodiment is configured by making a part of the main body portion 19 of the elastic body 5 relatively thick. However, the thick portion 5a may be configured by making a part of the surface layer portion 21 relatively thick.

The elastic body 5 is fixed by adhesion or the like while covering the entire ball striking portion region 9 of the core material 3. As a result, the bat 1 can be provided with the elastic body 5 in the entire area of the sweet region 24 having a substantially constant outer diameter and the tapered region 26 whose outer diameter gradually increases toward the tip end side. It should be noted that a recess may be provided in a part of the ball striking portion region, and an elastic body may be provided only in the recess.

The elastic body 5 attached to the ball striking portion region 9 is positioned on the tip end side by the head portion 11 and on the base end side by the collar 23.

The collar 23 is formed in a cylindrical shape and is formed of a polyurethane foam resin or the like which is a thermoplastic elastomer. The outer diameter of the collar 23 gradually increases from the base end to the tip end, and transitions to the elastic body 5 without a step. As a result, the collar 23 fills the space between the elastic body 5 and the core material 3.

[Bat action]
5 and 6 are conceptual diagrams showing the relationship between the bat 1 and the ball B at the time of hitting a ball, FIG. 5 shows a case where the angle of the hit ball is increased, and FIG. 6 shows a case where the angle of the hit ball is decreased.

In the bat 1 of the present embodiment, the angle of the hit ball can be adjusted according to the direction of one side surface 15 of the hitting portion region 9 of the core material 3. The angle is an angle with respect to the horizontal direction. A large angle means that the angle with respect to the horizontal direction is larger than 0 degrees, and a small angle means that the angle with respect to the horizontal direction is smaller than 0 degrees.

When increasing the angle of the hit ball, as shown in FIG. 5, one side surface 15 of the hitting portion region 9 of the core material 3 is inclined upward with respect to the horizontal direction. When the ball B is hit by the hitting portion 13 in this state, the ball B is captured by one side surface 15 of the hitting portion region 9 via the elastic body 5.

Therefore, the ball B is launched at a large angle according to the direction of one side surface 15. At this time, in the bat 1 of the present embodiment, since one side surface 15 of the hitting portion region 9 extends above and below the center O of the hitting portion 13, the ball B can be reliably caught by the one side surface 15 and the hitting failure can be suppressed.

Further, when the ball B is launched, the repulsive force of the elastic body 5 can be applied to the ball B. In particular, in this embodiment, since the repulsive force of the elastic body 5 can be increased by the thick portion 5a, the flight distance of the hit ball can be improved.

Moreover, in this embodiment, the center of gravity G of the hitting portion 13 is deviated to one side with respect to the center O in the first direction by the thick portion 5a. Therefore, when one side surface 15 of the hitting portion region 9 is inclined upward with respect to the horizontal direction, the center of gravity G of the hitting portion 13 is located above the center O.

As a result, the ball B is more likely to hit the hitting portion 13 below the center of gravity G. When the ball B hits the hitting portion 13 below the center of gravity G, the hitting portion 13 rotates in the direction opposite to that of the ball B to give the ball B a backspin.

Therefore, in the present embodiment, when it is desired to increase the angle of the hit ball, it is easy to increase the spin amount of the backspin, which is advantageous for improving the flight distance, and the flight distance can be easily improved.

On the other hand, when it is desired to reduce the angle of the hit ball, as shown in FIG. 6, one side surface 15 of the hitting portion region 9 of the core material 3 is inclined downward with respect to the horizontal direction. When the ball B is hit by the hitting portion 13 in this state, the ball B captured by the one side surface 15 is launched at a small angle according to the direction of the one side surface 15.

Also at this time, the ball B can be reliably caught by one side surface 15 to suppress hitting damage, and the repulsive force of the elastic body 5 can be increased by the thick portion 5a, so that the ball can be hit strongly and quickly.

Moreover, in this embodiment, when one side surface 15 of the hitting portion region 9 is inclined downward with respect to the horizontal direction, the center of gravity G of the hitting portion 13 is located below the center O. As a result, the ball B tends to hit the hitting portion 13 above the center of gravity G, and the spin amount of the backspin can be easily reduced contrary to the above. Therefore, when it is desired to reduce the angle of the hit ball, the backspin, which is disadvantageous for making a strong and fast hit ball, can be reduced to make the hit ball stronger and faster.

Further, if the bat 1 of the present embodiment is used so as to catch the ball B on the other side surface 17 of the ball striking portion region 9 of the core material 3, the repulsive force is reduced by the thin portion 5b of the elastic body 5, and the core material 3 is used. You can get a feeling of hitting.

[Effect of Example 1]
As described above, in the bat 1 of the present embodiment, the hitting portion region 9 of the core material 3 has a shape that is asymmetrical between one side and the other side in the first direction with respect to the center O of the hitting portion 13 in the cross section. One side surface 15 facing one side in the first direction is formed in an elliptical shape having a major axis in the second direction intersecting the first direction or in a planar shape along the second direction, and the elastic body 5 is the first. It has a symmetrical outer peripheral shape on one side and the other side in the direction, and has a relative thick wall adjacent to one side surface of the hitting portion region in the first direction according to the asymmetric shape of the hitting portion region 9 of the core material 3. It has a part 5a.

Therefore, in the present embodiment, the thick portion 5a can be provided in a part of the elastic body 5 according to the asymmetrical shape of the ball striking portion region 9 of the core material 3, so that the elastic body 5 can suppress the increase in weight. Can be thickened.

Further, in this embodiment, the angle of the hit ball can be adjusted according to the direction of one side surface 15 of the hitting portion region 9 of the core material 3.

Further, in the present embodiment, since the center of gravity of the hitting portion 13 is displaced to one side in the first direction, the position of the center of gravity of the hitting portion 13 is moved up and down according to the direction of one side surface 15 of the hitting portion region 9. The amount of spin of the ball B can be adjusted by varying.

In particular, when it is desired to increase the angle of the hit ball according to the direction of one side surface 15 of the hitting portion region 9, it is possible to increase the advantageous backspin, and when it is desired to decrease the angle of the hitting ball, it is possible to decrease the disadvantageous backspin. it can.

The hitting portion region 9 of the core material 3 has a shape in which the other side surface 17 facing the other side in the first direction of the hitting portion 13 has a shape different from that of the one side surface 15. Therefore, in this embodiment, the hitting portion region 9 can be easily formed into an asymmetrical shape between one side and the other side in the first direction. Further, by forming the other side surface 17 into an arc shape, the repulsive force against the ball B on the flat side surface 15 can be improved.

The elastic body 5 includes a tubular main body portion 19 and a surface layer portion 21 that covers the surface 19a of the main body portion 19, and the thick-walled portion 5a is configured by making a part of the main body portion 19 relatively thick. Has been done. Therefore, in this embodiment, damage to the elastic body 5 can be suppressed.

Moreover, when the main body portion 19 is made of urethane foam resin, the elastic body 5 having the thick portion 5a can be easily formed by foaming and curing the urethane foam resin inside the surface layer portion 21. it can.

FIG. 7 is a cross-sectional view of the bat according to the second embodiment of the present invention. FIG. 8 is a perspective view showing the core material of the bat of FIG. 7. FIG. 9 is a bottom view of the core material of FIG. In the second embodiment, the same reference numerals are given to the configurations corresponding to the first embodiment, and duplicate description will be omitted. Further, in FIGS. 8 and 9, the grip end is omitted.

The bat 1 of this embodiment is obtained by changing the shape of the core material 3 in the cross section of the hitting portion region 9 with respect to the first embodiment. Others are the same as in Example 1.

That is, the shape of the hitting portion region 9 in the cross section is formed in an elliptical shape. One side surface 15 and the other side surface 17 of the hitting portion region 9 have symmetrical shapes in the cross section. The center Q of the hitting portion region 9 is eccentric to the other side in the first direction with respect to the center O of the hitting portion 13. As a result, the hitting portion region 9 has a shape that is asymmetrical between one side and the other side in the first direction with respect to the center O of the hitting portion 13 in the cross section.

In such Example 2, the same action and effect as in Example 1 can be obtained.

Further, in this embodiment, the center Q of the hitting portion region 9 of the core material 3 is eccentric to the other side in the first direction with respect to the center O of the hitting portion 13. Therefore, while simplifying the shape by making the shape of one side surface 15 and the other side surface 17 of the hitting portion region 9 the same, the hitting portion region 9 is formed on one side and the other side in the first direction with respect to the center O of the hitting portion 13. It can be made into an asymmetrical shape.

FIG. 10 is a vertical cross-sectional view showing a bat according to the third embodiment of the present invention in which the grip portion is omitted. FIG. 11 is a cross-sectional view of the bat of FIG. 10 according to XI-XI. In the third embodiment, the same reference numerals are given to the configurations corresponding to the second embodiment, and duplicate description will be omitted.

The bat 1 of this embodiment is obtained by changing the shape of the core material 3 in the cross section of the hitting portion region 9 with respect to the second embodiment. Others are the same as in Example 2.

That is, the shape of the ball striking portion region 9 in the cross section is formed into an elliptical shape having a thickness smaller in the first direction than in the second embodiment. Also in this embodiment, one side surface 15 and the other side surface 17 of the ball striking portion region 9 have symmetrical shapes in the cross section.

Further, the center Q of the hitting portion region 9 is eccentric with respect to the center O of the hitting portion 13. The amount of eccentricity of the center Q with respect to the center O gradually increases from the proximal end side to the distal end side, and becomes substantially constant in the sweet region 24.

As a result, one side surface 15 of the hitting portion region 9 is located on the other side of the first direction with respect to the center O of the hitting portion 13 at least in the sweet region 24. In this embodiment, the ball striking portion region 9 is located on the other side of the first direction with respect to the center O of the ball striking portion 13.

Due to this configuration, the hitting portion region 9 does not have a portion located on one side of the first direction of the hitting portion 13 with respect to the center O, but one side of the hitting portion 13 with respect to the center O in the cross section. And the other side are asymmetric.

Therefore, even in Example 3, the same effects as in Examples 1 and 2 can be obtained.

Further, in this embodiment, one side surface 15 of the hitting portion region 9 of the core material 3 is located on the other side of the first direction with respect to the center O of the hitting portion 13. Therefore, the bat 1 of the present embodiment can easily transmit the force to the ball B even if the meet point of the ball B is shifted to the rear of the batter.

FIG. 12 is a cross-sectional view of the bat according to the fourth embodiment of the present invention. In the fourth embodiment, the components corresponding to the first embodiment are designated by the same reference numerals, and duplicate description will be omitted.

In the bat 1 of this embodiment, one side portion 25 constituting one side surface 15 of the ball striking portion region 9 of the core material 3 is thinner than the other portions in the bat 1 of the present embodiment. Others are the same as in Example 1.

In this embodiment, since one side surface 15 of the hitting portion region 9 bends more than the other portion when hitting a ball, the repulsive force can be improved. As a result, in this embodiment, it is possible to improve the flight distance of the hit ball.

In addition, even in Example 4, the same action and effect as in Example 1 can be obtained.

FIG. 13 is a cross-sectional view of the bat according to the fifth embodiment of the present invention. In the fifth embodiment, the components corresponding to the first embodiment are designated by the same reference numerals, and duplicate description will be omitted.

The bat 1 of this embodiment is a thin-walled portion 5b in which the portion of the elastic body 5 adjacent to the other side surface 17 of the ball striking portion region 9 is composed of only the surface layer portion 21 as compared with the first embodiment. Others are the same as in Example 1.

Even in such Example 5, the same action and effect as in Example 1 can be obtained.

Further, if the bat 1 of the present embodiment is used so as to catch the ball B on the other side surface 17 of the hitting portion region 9 of the core material 3, it is possible to obtain a hitting feeling close to that of the core material 3 alone.

1 Bat 3 Core material 5 Elastic body 5a Thick part 9 Hitting part area 13 Hitting part 15 One side surface 17 Other side surface 19 Main body part 19a Surface 21 Surface layer part 25 One side part

Claims (7)

A bat including a core material having a hitting portion region and a hitting portion composed of an elastic body attached to the hitting portion region.
The hitting portion region of the core material has a shape that is asymmetrical between one side in the first direction and the other side with respect to the center of the hitting portion in the cross section, and one side surface facing one side in the first direction is the said. It is formed in an elliptical shape having a major axis in the second direction intersecting the first direction or in a planar shape along the second direction.
The elastic body has an outer peripheral shape that is symmetrical between one side and the other side in the first direction, and is one of the hitting portion regions in the first direction according to the asymmetric shape of the hitting portion region of the core material. Has relative thick walls adjacent to the sides,
bat. The bat according to claim 1.
The center of the hitting portion region of the core material is eccentric to the other side in the first direction with respect to the center of the hitting portion.
bat. The bat according to claim 1 or 2.
The hitting portion region of the core material has a shape in which the other side surface of the hitting portion facing the other side in the first direction is different from that of the one side surface.
bat. The bat according to any one of claims 1 to 3.
The elastic body includes a tubular main body portion and a surface layer portion that covers the surface of the main body portion, and the thick-walled portion is formed by making a part of the main body portion relatively thick.
bat. The bat according to claim 4.
The main body is made of urethane foam resin.
bat. The bat according to any one of claims 1 to 5.
One side surface of the hitting portion region is located on the other side of the first direction with respect to the center of the hitting portion.
bat. The bat according to any one of claims 1 to 6.
The hitting portion region is formed in a hollow shape, and one side portion constituting the one side surface is thinner than the other portion.
bat.

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