CN102039040B - Baseball bat - Google Patents
Baseball bat Download PDFInfo
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- CN102039040B CN102039040B CN201010511741.8A CN201010511741A CN102039040B CN 102039040 B CN102039040 B CN 102039040B CN 201010511741 A CN201010511741 A CN 201010511741A CN 102039040 B CN102039040 B CN 102039040B
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- bat
- strengthening core
- hard material
- bamboo
- padded coaming
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- 239000000463 material Substances 0.000 claims abstract description 106
- 238000005728 strengthening Methods 0.000 claims abstract description 93
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 77
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 77
- 241001330002 Bambuseae Species 0.000 claims abstract description 77
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 77
- 239000011425 bamboo Substances 0.000 claims abstract description 77
- 241000565354 Fraxinus longicuspis Species 0.000 claims abstract 2
- 239000002184 metal Substances 0.000 claims description 27
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002994 raw material Substances 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 241000208140 Acer Species 0.000 claims description 11
- 241000723418 Carya Species 0.000 claims description 10
- 239000002131 composite material Substances 0.000 abstract description 4
- 239000002023 wood Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract 1
- 241000565391 Fraxinus mandshurica Species 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- 230000010354 integration Effects 0.000 description 9
- 239000000047 product Substances 0.000 description 7
- 239000007767 bonding agent Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 241001536352 Fraxinus americana Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000345998 Calamus manan Species 0.000 description 1
- 241000288673 Chiroptera Species 0.000 description 1
- 244000205754 Colocasia esculenta Species 0.000 description 1
- 235000006481 Colocasia esculenta Nutrition 0.000 description 1
- 206010021703 Indifference Diseases 0.000 description 1
- 241000758791 Juglandaceae Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 235000012950 rattan cane Nutrition 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Abstract
The invention provides a kind of baseball bat, there is the performance of the wooden bat be similar in the past and advantage also excellent in price and protection of resources.Described baseball bat is exactly the rectangular cross section of center configuration at cross section and runs through the strengthening core (21) at two ends, and around this strengthening core (21) stacked bamboo chip (33), described strengthening core (21) is for will be used for guaranteeing the structure of the hard material (23) of intensity together with these two kinds of wood combination of the padded coaming (24) for slowing down impact, composite construction is become by making strengthening core (21), the raising of rigidity and slowing down of impact can be realized simultaneously, obtain the use sense being similar to wooden bat.Therefore, the substitute that bat of the present invention can be used as wooden bat uses, thus can suppress the consumption of the scarce resources such as Japanese Ash, and can supply product at a low price to market stability.
Description
Technical field
The present invention relates to a kind of baseball bat used in baseball game.
Background technology
Load strong when the wooden bat used in hardball must can bear impact, the raw-material trees as this bat are confined to Japanese Ash, maple and American ash etc.But the place of production scope of these trees is narrow, and the time that growth needs is longer, so the situation of resource exhaustion recently increases the weight of, be in the condition being difficult to qurer supply wooden bat.In contrast, though metal ball bar can be produced in a large number and can supply at a low price, due to lightweight and the coefficient of resilience is also comparatively large, so unilaterally favourable to impact side, match is likely caused to carry out smoothly.Therefore, MLB Slam in Japan does not approve use metal ball bar, even if amateur baseball, arranges some restrictions sometimes yet.
As the substitute of wooden bat, can enumerate the various joint bats having binded wood chip or bamboo chip, the most universal is the overall bamboo bat be made up of bamboo chip.The raw material of bamboo bat normally grow up to large diameter mao bamboon, after the bamboo of felling being processed into the bamboo chip of elongated strip, being sticked together by these bamboo chips and manufacture the mother metal of square sectional, be finally finish-machined to regulation shape with lathe with bonding agent.In addition, except bamboo bat, from cross-section, only formed by bamboo chip by central part, the product being called composite bat having binded the sheet materials such as maple around this central part is also popularized.Structurally, the handle part of composite bat is entirely bamboo, but the periphery of striking portion is covered by the timber equal with wooden bat.
About technological development with a long history of bat, also a lot of patents etc. have been applied for up to now, be shown in following by case relevant to this case in these patents: wherein, the feature of patent document 1 (real bright No. 4262 publications of Japan Patent) runs through center to improve the intensity of bat at rattan wood; The feature of patent document 2 (real bright No. 63303 publications of Japan Patent) inserts iron staff at the center of bat to prevent from losing or improving intensity; Patent document 3 (real bright No. 379399 publications of Japan Patent) relates to the structure of bamboo bat, there is disclosed the collocation method etc. of bamboo chip; Patent document 4 (Japanese Patent Publication Sho 35-016213 publication) uses hard material and at two side bonds bamboo woods of this core to form striking portion to improve the screen resilience of bamboo bat at core.
Summary of the invention
Raw-material bamboo grows as bamboo bat is fast, the misgivings of also No Assets exhaustion, and bonding agent is also constantly improved in addition, thus also bonding plane will be caused to peel off because of impact or long term deterioration, and security aspect is also without any problem.But well-known bamboo is low relative to the rigidity of bending load, bamboo bat is overall when impacting absorbs impact in arciform distortion, is therefore also difficult to obtain flying distance, so less use in regulation game.In addition, the handle channel floor of described composite bat formed by bamboo, and in rigidity, difference is little compared with bamboo bat.
In addition, the proportion of described Japanese Ash or maple etc. is about 0.73, and the proportion of bamboo is about 0.68.Although these values can there are differences because of kind, the place of production or moisture ratio etc., the lightweight this point of bamboo can not change.Therefore, when forming product, if make shape identical, then one end of bamboo bat can be lighter, in addition, if make weight identical, one end of wooden bat can be comparatively thin, be difficult to make the shape of bamboo bat and wooden bat and weight all consistent, thus difference will inevitably be produced in use sense.In addition, the weight of hardball wooden bat is 900g to 910g in the slightly thin type being called " S2 type ".
In order to improve the intensity of bat, use the method for some core as patent document 1 has, but be difficult to the core of the circular cross-section of the document with surround this core periphery timber bonding plane on harmonious good apply pressure, thus adhesive strength is easily not enough.In addition, if patent document 2 is when being used as core by metal or resin etc., not being recognized as wooden bat, thus according to the various rules that match group is fixed, likely can being inhibited in regulation game and using.In addition, the entirety of the handle part of the bat of patent document 4 is made up of hard raw material, and except weight increases, impact during impact can be directly delivered to palm and cause use sense poor, therefore be mainly used in and swing etc. in exercise, be not suitable for using in play.
The present invention forms based on the exploitation of above-mentioned actual conditions, and it aims to provide a kind of baseball bat, has the performance of the wooden bat be similar in the past, and also excellent in price and protection of resources.
For solve described problem technical scheme 1 in the invention recorded be a kind of baseball bat, it is strengthening core to the center and rectangular cross section being positioned at described bat cross section, with this strengthening core of encirclement and the perimeter material of stacked bamboo chip cut by bonding and integrated formed mother metal and manufacture, described strengthening core extends through end from the front end of described bat, and is made up of hard material and these two kinds of raw material of padded coaming.
Baseball bat of the present invention is based on existing bamboo bat, and loads the strengthening core be made up of hard material and these two kinds of raw material of padded coaming in the inside of this bamboo bat.In addition, the cross section of strengthening core is defined as rectangle under the state of mother metal, and under the state forming product, does not all interrupt in midway and run through two ends from front end hard material and padded coaming to the handle end of described shank of described bat.But the center of strengthening core is without the need to completely the same with the center of bat.In addition, described mother metal refers to the raw-material rod in square sectional as bat, cuts and make final product with lathe to this mother metal.In addition, the cross section of described strengthening core refers to the face of the circular cross-section shape orthogonal with the length direction of mother metal or bat.
Load strengthening core to improve rigidity and the adjustment weight of bat.For this reason, strengthening core must use flexural rigidity higher than bamboo and proportion is greater than the raw material of bamboo.But, if improve rigidity merely, then there is impact and can not be absorbed but be delivered to handle thus the misgivings causing use sense to worsen.Therefore, strengthening core of the present invention be by the hard material being mainly used in improving rigidity be mainly used in absorbing the padded coaming impacted and combine performance to realize being similar to wooden bat.In addition, hard material and padded coaming are by bonding and shape all-in-one-piece strengthening core securely, and the cross sectional shape of hard material and padded coaming can not change along the length direction of mother metal, in arbitrary cross section, bi-material is all as golden Taro sugar stock is configured to same shape.But when being formed as bat product, also cutting in handle part (diameter the is about 25mm) outer rim to strengthening core that diameter is smaller sometimes and cross sectional shape is changed.
The bamboo chip being layered in the periphery of strengthening core is by the alongst splitting of the bamboo of felling and cuts into the sheet material of specific length, and with bamboo bat in the past and indifference, the end face of each bamboo chip is elongated rectangle and presents the outward appearance of strip.Adhesive-applying on the face that the area of this bamboo chip is larger, coincides with one another this face, after making it to combine closely, applies the duplexer that pressure and heat manufacture bamboo chip.Equally, the hard material strengthening core that manufacture square-section integrated with padded coaming is made with bonding agent.Then, at the surface application bonding agent of duplexer and strengthening core, both are configured to the after-applied pressure of structure that specifies and heat and complete mother metal to make duplexer and overall the formation integrally of strengthening core.
As above the cross section of strengthening core is defined as rectangular-shaped, pressure can be applied equably to the boundary face entirety of strengthening core and bamboo chip when manufacturing mother metal, so both eliminate the distortion of strengthening core or bamboo chip, also bonding agent can be made to penetrate into whole boundary face and realize ideal bonding, therefore, the load acting on bat periphery is positively delivered to strengthening core, and also prevent the generation of the be full of cracks caused because of poor attachment.In addition, because strengthening core runs through the two ends of bat not at interrupted midway, distortion when therefore improve the integral rigidity of bat thus inhibit impact, in addition because the proportion of strengthening core is greater than the proportion of bamboo, and make compared with pure bamboo bat, the weight applying the bat of this strengthening core increases, and owing to forming the effect of the padded coaming of strengthening core, use sense is also improved in addition.
What record in technical scheme 2 is the invention of structure limiting strengthening core, and the cross section of described strengthening core is an edge lengths is the rectangular-shaped of 30mm to 40mm, and described hard material is clamped in the opposite face of described padded coaming.
The square or rectangular cross section of described strengthening core to be an edge lengths be 30mm to 40mm, described hard material is configured in center, padded coaming so that the mode be clipped between its opposite face contacts with this hard material by this hard material, thus becomes the three-decker of clamping the hard material at center with two padded coamings.By forming this kind of structure, impact during impact had not only been slowed down by padded coaming but also had been delivered to hard material, and use sense thus can be made to improve.In addition, as the detailed content of the sectional dimension of hard material or padded coaming, all select optimum value at every turn.In addition, strengthening core length be more than 30mm, thus formed product time, whole handle part is made up of strengthening core.
What record in technical scheme 3 is also the invention of structure limiting strengthening core, described strengthening core is an edge lengths of cross section is the rectangular-shaped of 30mm to 40mm, and described hard material is configured in center, described padded coaming is configured to surround around described hard material.
The cross section of described strengthening core is length is on one side the square or rectangular of 30mm to 40mm, and described hard material is configured in center and described padded coaming is configured to surround the structure of this hard material periphery.In addition, if consider cementability, then hard material is preferably square-section, and in addition, the padded coaming surrounding hard material is formed by the combination of materials of the bar of two to about four, not for digging through the material at the center of a bar.By the strengthening core formed in this way, because hard material is surrounded completely by padded coaming, thus decapacitation slow down be delivered to hard material impact beyond, can also slow down from hard material transmission come impact.In addition, as the detailed content of the sectional dimension of hard material or padded coaming, select optimum value at every turn.
What record in technical scheme 4 is also the invention of structure limiting strengthening core, and described strengthening core is an edge lengths of cross section is the rectangular-shaped of 30mm to 40mm, and four small pieces be altogether made up of hard material and padded coaming are configured to windmill.
Described strengthening core is an edge lengths in cross section is the square or rectangular of 30mm to 40mm, and is that square or rectangular cross section is divided into four small pieces, and is arranged in the structure of windmill; What is called is arranged in windmill and refers to the central shaft of bat as small pieces are configured to rotational symmetric situation by initial point.Therefore, the cross section of each small pieces is square or rectangulars of 1/4th sizes in the cross section of strengthening core, and each small pieces are the double-deckers making hard material and padded coaming become face to contact.In addition, when small pieces are arranged in windmill, adjustment direction or be configured to make hard material be collected at center.By the strengthening core formed in this way, because hard material is distributed, and padded coaming clips each hard material, therefore impacts being dispersed to wider range.In addition, as the detailed content of the sectional dimension of hard material or padded coaming, select optimum value at every turn.
What record in technical scheme 5 is the raw-material invention limiting strengthening core, and described hard material uses Hickory or oak, and described padded coaming uses Japanese Ash or maple.Hickory is the broad leaf tree of primary growth at the Juglandaceae of Eastern North America, as timber for hard and resistance to shock loads is strong, from ancient times just for golf clubs.This Hickory proportion is in the dry state about 0.85, more great than the ratio of bamboo, and except can improving the rigidity of bat, weight also increases.In addition, oak (oak), though not as good as Hickory, also has suitable rigidity and proportion, and it is used in various toolholders etc.The aboundresources of Hickory or oak, acquired aspect does not have problems.
Padded coaming is used as raw-material Japanese Ash or the maple of wooden bat in the past.The excellent strength of Japan's Ash or maple, has the character moderately absorbing impact in addition, possesses as the ideal condition of bat.Therefore, by combining with described hard material, the raising of intensity can be contributed to, also can slow down the impact of being transmitted by hard material, and use sense being similar to wooden bat.In addition, though Japanese Ash or maple exist restriction as mentioned above in resource, in the present invention, its sectional area is less, therefore can use in the past discarded leftover pieces etc., thus can reduce expense.
Beneficial effect of the present invention:
As described in the invention of record in technical scheme 1, the center of bat is loaded by the strengthening core will be made up of hard material and padded coaming, and at the baseball bat of the stacked bamboo chip in the periphery of this strengthening core, the shortcoming of the flexibility of bamboo bat in the past can be overcome and obtain the rigidity being similar to wooden bat, in addition by strengthening core being formed as the double-decker of hard material and padded coaming, can slow down and impact and obtain the use sense being similar to wooden bat.In addition, because strengthening core uses proportion to be greater than the raw material of bamboo, so weight can be adjusted to about the 920g equal with wooden bat when not changing shape, also can use smoothly in the match of reality.
In addition, the hard material except padded coaming and the aboundresources of bamboo chip, can supply at a low price and high performance bat market stability.In addition, each inscape of strengthening core and bamboo chip is square-section, can apply pressure while carry out bonding process, each key element therefore can be made integrated securely, thus can prevent from the inner breakage started adjacent key element contact surface each other.In addition, strengthening core does not interrupt and is through to end from the front end of bat, and therefore also can guarantee the intensity of the handle part of reduced cross-sectional, durability also improves.In addition, bat of the present invention can continue to use the manufacturing process of bamboo bat in the past, with regard in this respect, also can suppress product price.
As described in the invention of record in technical scheme 2, by at center configuration hard material and the three-decker clipping the opposite face of this hard material with padded coaming forms strengthening core, due to by only stacked and bonding hard material and padded coaming simple step forms strengthening core, thus can product price be suppressed, impact can be slowed down expeditiously by clipping hard material with padded coaming in addition.
As described in the invention of record in technical scheme 3, by at center configuration hard material and the structure of surrounding the surrounding of this hard material with padded coaming forms strengthening core, because the surrounding of hard material covered by padded coaming, thus palm can not contact with hard material, can slow down impact.
As described in the invention of record in technical scheme 4, by use, four small pieces being bonded with hard material and padded coaming are arranged in windmill and form strengthening core, because hard material is distributed, and each hard material is clamped by padded coaming, therefore can slow down expeditiously and impact and diminish due to the sectional area of each padded coaming, thus also contribute to effective utilization of the leftover pieces of Japanese Ash etc.
As described in the invention recorded in technical scheme 5, by using Hickory or oak as hard material, and using Japanese Ash or maple as padded coaming, not only can reduce expense but also the bat of the performance being similar to wooden bat can be provided.In addition, the sectional area of the padded coaming of Japanese Ash or maple is used to be less than wooden bat in the past, therefore the leftover pieces etc. produced when manufacturing wooden bat can be used to be difficult to the part utilized up to now, and expense is less, can realize effective utilization of scarce resource.
Accompanying drawing explanation
Fig. 1 (A), (B), (C), (D) are the structure example of the baseball bat of technical scheme 2, Fig. 1 (A) is front view and left view, Fig. 1 (B) is B-B sectional view, Fig. 1 (C) is C-C sectional view, and Fig. 1 (D) is D-D sectional view;
Fig. 2 (A), (B) are the cross sections of the mother metal of the material of the baseball bat shown in Fig. 1, and Fig. 2 (A) is state diagram inscape be separated, and Fig. 2 (B) is by the state diagram of overall integration;
Fig. 3 (A), (B), (C), (D) are the structure example of the baseball bat of technical scheme 3, Fig. 3 (A) is front view and left view, Fig. 3 (B) is B-B sectional view, Fig. 3 (C) is C-C sectional view, and Fig. 3 (D) is D-D sectional view;
Fig. 4 (A), (B) are the cross sections of the mother metal of the material of the baseball bat shown in Fig. 3, and Fig. 4 (A) is state diagram inscape be separated, and Fig. 4 (B) is by the state diagram of overall integration;
Fig. 5 (A), (B), (C), (D) are the structure example of the baseball bat of technical scheme 4, Fig. 5 (A) is front view and left view, Fig. 5 (B) is B-B sectional view, Fig. 5 (C) is C-C sectional view, and Fig. 5 (D) is D-D sectional view;
Fig. 6 (A), (B) are the cross sections of the mother metal of the material of the baseball bat shown in Fig. 5, and Fig. 6 (A) is state diagram inscape be separated, and Fig. 6 (B) is by the state diagram of overall integration.
[explanation of symbol]
11a, 11b, 11c baseball bat
12a, 12b, 12c mother metal
21a, 21b, 21c strengthening core
22 small pieces
23 hard materials
24 padded coamings
31 perimeter material
32 duplexers
33 bamboo chips
Detailed description of the invention
Fig. 1 represents the structure example of the baseball bat 11a based on technical scheme 2, and Fig. 1 (A) is front view and left view, and Fig. 1 (B) is B-B sectional view, and Fig. 1 (C) is C-C sectional view, and Fig. 1 (D) is D-D sectional view.The strengthening core 21a in the rectangular cross section at the configuration Shi center of the baseball bat 11a shown in this figure runs through two ends, surrounds the outside of described strengthening core 21a by the perimeter material 31 being laminated with bamboo chip 33.The square sectional of the strengthening core 21a of this figure to be a leaf length be 36mm, and be the three-decker of the hard material 23 at center of clamping with upper and lower padded coaming 24.Hard material 23 is the materials of rectangular cross-sectional Hickory being made long limit 36mm, minor face 12mm, as shown in B-B sectional view, does not interrupt but runs through two ends.In addition, padded coaming 24 is the materials of rectangular cross-sectional Japanese Ash being made long limit 36mm, minor face 12mm, and upper and lower padded coaming does not all interrupt but runs through two ends.
The perimeter material 31 covering the outside of strengthening core 21a is multiple bamboo chip 33 is in addition bonding and formed.Bamboo chip 33 is by the elongated strip of the bamboo of felling along machine direction splitting, and the elongated rectangular interval of drawing oblique line in the outer rim of C-C sectional view represents a bamboo chip 33.In addition, certainly there is deviation in Shi Chang limit, the cross section 15mm of a bamboo chip 33, minor face about 5mm.In addition, bamboo is cylindric originally, and therefore bamboo chip 33 also bends strictly speaking, but the width of each bamboo chip 33 is very little compared with the diameter of former bamboo, therefore can regard as plane plate.As shown in C-C sectional view, adjacent bamboo chip 33 seamlessly touches each other, and the border of strengthening core 21a and bamboo chip 33 is touched similarly, thus overall integration.In addition, each bamboo chip 33 is be configured to length direction as far as possible along radial direction from end view.
In the handle part of the reduced cross-sectional of bat, as shown in D-D sectional view, entirety is only made up of strengthening core 21a.Therefore, the rigidity equal with wooden bat in the past can be guaranteed near handle, and owing to clamping hard material 23 with padded coaming 24, so the impact being delivered to palm is slowed down.In addition, as the raw material of hard material 23, except Hickory, can also be oak, in addition, as the raw material of padded coaming 24, except Japanese Ash or maple, can also be American ash, Manchurian ash or Ash.
Fig. 2 is the cross section of the mother metal 12a of the material of the baseball bat 11a shown in Fig. 1, and Fig. 2 (A) is state diagram inscape be separated, and Fig. 2 (B) is by the state diagram of overall integration.In addition, to be all similarly about 70mm at any part square for the cross sectional shape of mother metal 12a.Mother metal 12a is not once formed by each bamboo chip 33 bonding, but is first bonded to each other in the wider face of each bamboo chip 33 and makes duplexer 32.In order to prevent the poor attachment in rear step, make the surface smoothing of this duplexer 32.In addition, the hard material 23 and padded coaming 24 that form strengthening core 21a are processed as the cross sectional shape of regulation.Then, adhesive-applying on the surface of hard material 23, padded coaming 24 and duplexer 32 and make the integration of these materials, thus finally complete the mother metal 12a shown in Fig. 2 (B).
Fig. 3 represents the structure example of the baseball bat 11b based on technical scheme 3, and Fig. 3 (A) is front view and left view, and Fig. 3 (B) is B-B sectional view, and Fig. 3 (C) is C-C sectional view, and Fig. 3 (D) is D-D sectional view.The strengthening core 21b of the square-section at the configuration Shi center of the baseball bat 11b shown in this figure runs through two ends, and surrounds the outside of this strengthening core 21b by the perimeter material 31 of stacked bamboo chip 33.The square sectional of the strengthening core 21b of this figure to be a leaf length be 36mm, and the structure being the mode of the hard material 23 surrounding center is configured with padded coaming 24.Hard material 23 is made by Hickory while be the material of square sectional of 16mm, as shown in B-B sectional view, do not interrupt but run through two ends.In addition, padded coaming 24 is the combinations of four Japanese Ash being made the material of rectangular cross-sectional, and any padded coaming does not all interrupt but runs through two ends.In addition, perimeter material 31 is identical with described Fig. 1.
In the handle part of the reduced cross-sectional of bat, as shown in D-D sectional view, entirety is only made up of strengthening core 21b.Therefore, the rigidity equal with wooden bat in the past can be guaranteed near this handle, and owing to surrounding the surrounding of hard material 23 with padded coaming 24, so the impact being delivered to palm is slowed down.In addition, the raw material of hard material 23 or padded coaming 24 are identical with described Fig. 1.
Fig. 4 is the cross section of the mother metal 12b of material as the baseball bat 11b shown in Fig. 3, and Fig. 4 (A) is state diagram inscape be separated, and Fig. 4 (B) is by the state diagram of overall integration.In this figure also in the same manner as described Fig. 2, bamboo chip 33 is in addition bonding and manufacture duplexer 32, and the hard material 23 forming strengthening core 21b and padded coaming 24 are processed into the cross sectional shape of regulation.Then, hard material 23, padded coaming 24 and duplexer 32 surface application bonding agent and make the integration of these materials, thus finally complete the mother metal 12b shown in Fig. 4 (B).
Fig. 5 represents the structure example of the baseball bat 11c based on technical scheme 4, and Fig. 5 (A) is front view and left view, and Fig. 5 (B) is B-B sectional view, and Fig. 5 (C) is C-C sectional view, and Fig. 5 (D) is D-D sectional view.The strengthening core 21c of the square-section at the configuration Shi center of the baseball bat 11c shown in this figure runs through two ends, and surrounds the outside of this strengthening core 21c by the perimeter material 31 of stacked bamboo chip 33.The square sectional of the strengthening core 21c of this figure to be a leaf length be 36mm, and be to amount to four small pieces 22 and be configured to the structure of windmill.The square sectional of these small pieces 22 to be length be 18mm, and be by double-decker in addition bonding with padded coaming 24 for hard material 23, as shown in B-B sectional view, do not interrupt but run through two ends.In addition, each small pieces 22 are configured to hard material 23 and are collected at center, the large percentage in the outer rim of strengthening core 21c shared by padded coaming 24.In addition, perimeter material 31 is identical with described Fig. 1.
As shown in the C-C sectional view of Fig. 5 (C), each hard material 23 surrounded by padded coaming 24 and bamboo chip 33, thus can slow down impact expeditiously.In addition, in the handle part of reduced cross-sectional, as shown in the D-D sectional view of Fig. 5 (D) entirety only by strengthening core 21c form, and hard material 23 is collected at core, be only the part exposing the end face having hard material 23 at outer peripheral face, can not affect greatly use sense.
Fig. 6 is the cross section of the mother metal 12c of material as the baseball bat 11c shown in Fig. 5, and Fig. 6 (A) is state diagram inscape be separated, and Fig. 6 (B) is by the state diagram of overall integration.In this figure also in the same manner as described Fig. 2, bamboo chip 33 is in addition bonding and manufacture duplexer 32, and manufacture in advance form strengthening core 21c amount to four small pieces 22.Each small pieces 22 are double-decker in addition bonding with padded coaming 24 for the hard material 23 of square-section, but the sectional area of padded coaming 24 is larger.Then, four small pieces 22 will be amounted to and be arranged in windmill, and on the surface of small pieces 22 with duplexer 32 adhesive-applying and make these materials integrated, thus finally complete the mother metal 12c shown in Fig. 6 (B).
Claims (7)
1. a baseball bat, is characterized in that:
It is strengthening core (21a) to the center and rectangular cross section being positioned at described bat cross section, with this strengthening core of encirclement (21a) and the perimeter material (31) of stacked bamboo chip (33) cut by bonding and integrated formed mother metal (12a) and manufacture
Described strengthening core (21a) extends through end from the front end of bat, and by the hard material (23) for improving rigidity with form for these the two kinds of raw material of padded coaming (24) absorbing impact,
Described strengthening core uses flexural rigidity higher than bamboo and proportion is greater than the raw material of bamboo,
In the handle part of bat, entirety is only made up of described strengthening core,
In described strengthening core (21a), from the front end of bat to end, clamp described hard material (23) by the opposite face of described padded coaming (24).
2. baseball bat according to claim 1, is characterized in that:
Described strengthening core (21a) is an edge lengths of its cross section is the rectangular-shaped of 30mm to 40mm.
3. a baseball bat, is characterized in that:
It is strengthening core (21b) to the center and rectangular cross section being positioned at described bat cross section, with this strengthening core of encirclement (21b) and the perimeter material (31) of stacked bamboo chip (33) cut by bonding and integrated formed mother metal (12b) and manufacture
Described strengthening core (21b) extends through end from the front end of bat, and by the hard material (23) for improving rigidity with form for these the two kinds of raw material of padded coaming (24) absorbing impact,
Described strengthening core uses flexural rigidity higher than bamboo and proportion is greater than the raw material of bamboo,
In the handle part of bat, entirety is only made up of described strengthening core,
In described strengthening core (21b), from the front end of bat to end, described hard material (23) is configured in center, and described padded coaming (24) is configured to surround described hard material (23) around.
4. baseball bat according to claim 3, is characterized in that:
Described strengthening core (21b) is an edge lengths of its cross section is the rectangular-shaped of 30mm to 40mm.
5. a baseball bat, is characterized in that:
It is strengthening core (21c) to the center and rectangular cross section being positioned at described bat cross section, with this strengthening core of encirclement (21c) and the perimeter material (31) of stacked bamboo chip (33) cut by bonding and integrated formed mother metal (12c) and manufacture
Described strengthening core (21c) extends through end from the front end of bat, and by the hard material (23) for improving rigidity with form for these the two kinds of raw material of padded coaming (24) absorbing impact,
Described strengthening core uses flexural rigidity higher than bamboo and proportion is greater than the raw material of bamboo,
In the handle part of bat, entirety is only made up of described strengthening core,
In described strengthening core (21c), from the front end of bat to end, four small pieces (22) that amount to that will be made up of described hard material (23) and described padded coaming (24) are configured to windmill.
6. baseball bat according to claim 5, is characterized in that:
Described strengthening core (21c) is an edge lengths of cross section is the rectangular-shaped of 30mm to 40mm.
7. the baseball bat according to any one of claim 1 ~ 6, is characterized in that:
Described hard material (23) uses Hickory or oak, and described padded coaming (24) uses Japanese Ash or maple.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-244767 | 2009-10-23 | ||
| JP2009244767A JP5794757B2 (en) | 2009-10-23 | 2009-10-23 | Baseball bat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102039040A CN102039040A (en) | 2011-05-04 |
| CN102039040B true CN102039040B (en) | 2016-03-02 |
Family
ID=43905784
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010511741.8A Expired - Fee Related CN102039040B (en) | 2009-10-23 | 2010-10-19 | Baseball bat |
| CN2010205671531U Expired - Fee Related CN202028136U (en) | 2009-10-23 | 2010-10-19 | Bat for baseball |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205671531U Expired - Fee Related CN202028136U (en) | 2009-10-23 | 2010-10-19 | Bat for baseball |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5794757B2 (en) |
| CN (2) | CN102039040B (en) |
| HK (1) | HK1154822A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5794757B2 (en) * | 2009-10-23 | 2015-10-14 | 株式会社ロンウッド | Baseball bat |
| CN107174809A (en) * | 2017-04-17 | 2017-09-19 | 大连华弘体育用品有限公司 | A kind of spliced baseball bat and its manufacture method |
| KR200488118Y1 (en) * | 2018-02-12 | 2018-12-14 | 최은준 | Reinforcement hitting apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6010417A (en) * | 1998-05-15 | 2000-01-04 | Young Bat Co., Inc. | Baseball bat |
| CN2548669Y (en) * | 2002-06-18 | 2003-05-07 | 广西兴安丽木木业有限公司 | Wooden solid bat |
| CN1640639A (en) * | 2004-01-16 | 2005-07-20 | 包丽兰 | Bamboo-made baseball bat |
| CN202028136U (en) * | 2009-10-23 | 2011-11-09 | 荣木有限公司 | Bat for baseball |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1549803A (en) * | 1923-05-07 | 1925-08-18 | William C Rastetter | Ball bat |
| JPS525736Y2 (en) * | 1972-06-14 | 1977-02-05 | ||
| JPH0930277A (en) * | 1995-07-14 | 1997-02-04 | Toyota Auto Body Co Ltd | Shift lever boot fitting structure |
| JP3117370U (en) * | 2005-10-05 | 2006-01-05 | 道堅 羅 | Baseball bat structure |
-
2009
- 2009-10-23 JP JP2009244767A patent/JP5794757B2/en active Active
-
2010
- 2010-10-19 CN CN201010511741.8A patent/CN102039040B/en not_active Expired - Fee Related
- 2010-10-19 CN CN2010205671531U patent/CN202028136U/en not_active Expired - Fee Related
-
2011
- 2011-08-25 HK HK11109004.2A patent/HK1154822A1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6010417A (en) * | 1998-05-15 | 2000-01-04 | Young Bat Co., Inc. | Baseball bat |
| CN2548669Y (en) * | 2002-06-18 | 2003-05-07 | 广西兴安丽木木业有限公司 | Wooden solid bat |
| CN1640639A (en) * | 2004-01-16 | 2005-07-20 | 包丽兰 | Bamboo-made baseball bat |
| CN202028136U (en) * | 2009-10-23 | 2011-11-09 | 荣木有限公司 | Bat for baseball |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5794757B2 (en) | 2015-10-14 |
| JP2011087817A (en) | 2011-05-06 |
| HK1154822A1 (en) | 2012-05-04 |
| CN202028136U (en) | 2011-11-09 |
| CN102039040A (en) | 2011-05-04 |
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