JP6827071B2

JP6827071B2 - Baseball undershirt

Info

Publication number: JP6827071B2
Application number: JP2019110613A
Authority: JP
Inventors: 悠次郎江連; 小林　晃; 晃小林; 哲大岡野; 悌二田中
Original assignee: デサントジャパン株式会社
Priority date: 2019-05-28
Filing date: 2019-06-13
Publication date: 2021-02-10
Anticipated expiration: 2039-06-13
Also published as: JP2020196980A

Description

本発明は野球用アンダーシャツに関するものであり、詳細には、野球用のユニフォームや練習着の下に着用するアンダーシャツに関するものである。 The present invention relates to a baseball undershirt, and more particularly to an undershirt worn under a baseball uniform or training suit.

従来、野球用のユニフォームや練習着の下に着用されるアンダーシャツが知られている。野球用のアンダーシャツはプレイヤーの上半身の動きを妨げないことが望ましく、例えば特許文献１〜３には様々なスポーツ用アンダーシャツが開示されている。これらの特許文献に開示されるアンダーシャツは、伸縮性の高い生地から構成したり、身体の部位に応じて緊締力を変えたりすることで、所望の筋肉や関節の動きをサポートしたり、運動補助機能が高められている。 Conventionally, undershirts worn under baseball uniforms and training clothes have been known. It is desirable that the undershirt for baseball does not interfere with the movement of the upper body of the player. For example, Patent Documents 1 to 3 disclose various undershirts for sports. The undershirts disclosed in these patent documents are made of highly elastic fabrics, or by changing the tightening force according to the part of the body, to support the movement of desired muscles and joints, or to exercise. Auxiliary functions are enhanced.

特開２００１−４９５０８号公報Japanese Unexamined Patent Publication No. 2001-49508 特開２００４−４４０７０号公報Japanese Unexamined Patent Publication No. 2004-44070 特開２０１３−２５３３５１号公報Japanese Unexamined Patent Publication No. 2013-253351

上記のように、従来、機能性を高めたアンダーシャツが様々知られているが、なかでも野球では、ピッチングやスローイングなどの際に腕や肩周りをスムーズに動かせることが重要となる。本発明は前記事情に鑑みてなされたものであり、その目的は、腕を動かす動作をスムーズに行うことができる野球用アンダーシャツを提供することにある。 As mentioned above, various undershirts with enhanced functionality have been known in the past, but in baseball, it is important to be able to move the arms and shoulders smoothly during pitching and throwing. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a baseball undershirt capable of smoothly moving an arm.

前記課題を解決することができた本発明の野球用アンダーシャツとは、脇部に前半身側から後半身側にかけて延在する脇開き部が設けられた野球用アンダーシャツであって、脇開き部は、後半身側に存在している部分が前半身側に存在している部分よりも長いところに特徴を有する。本発明の野球用アンダーシャツは、脇部に脇開き部が形成されることにより、腕を上げた際に袖が腕の動きに追従しやすくなり、腕を上げる動作をスムーズに行うことができる。また、脇開き部が後半身側により長く形成されることにより、腕を前に出す動作をスムーズに行うことができる。そのため、ピッチングやスローイングなどの際に腕をスムーズに動かすことができる。 The baseball undershirt of the present invention that has been able to solve the above problems is a baseball undershirt in which a side opening extending from the front half body side to the second half body side is provided on the side portion. The portion is characterized in that the portion existing on the latter half body side is longer than the portion existing on the first half body side. In the baseball undershirt of the present invention, since the side opening is formed on the side, the sleeves can easily follow the movement of the arm when the arm is raised, and the movement of raising the arm can be smoothly performed. .. In addition, since the side opening portion is formed longer on the latter half of the body side, the movement of pushing the arm forward can be smoothly performed. Therefore, the arm can be moved smoothly during pitching and throwing.

脇開き部は、後半身側から前半身側に向かって身長方向の下方に延びるように形成されていることが好ましい。このように脇開き部が形成されていれば、腕を上げたり前に出す動作をした際に脇開き部が開いて、ピッチングやスローイングをよりスムーズに行うことができる。 The side opening portion is preferably formed so as to extend downward in the height direction from the latter half body side toward the front half body side. If the side opening portion is formed in this way, the side opening portion opens when the arm is raised or pushed forward, and pitching and throwing can be performed more smoothly.

脇部は、脇開き部より身長方向の上方に存在する第１脇パーツと、脇開き部より身長方向の下方に存在する第２脇パーツを有し、第１脇パーツと第２脇パーツによって脇開き部を形成することができる。この場合、第２脇パーツの上端部の外側に第１脇パーツの下端部が重ねられ、脇開き部は、第１脇パーツと第２脇パーツの重ね合わせ部に形成されていることが好ましい。このように脇開き部が形成されることにより、アンダーシャツの外側に着用するユニフォーム等に脇開き部が引っ掛かりにくくなり、腕を上げたり前に出す動作をスムーズに行いやすくなる。また、脇開き部を通して着用者の脇部が外側から見えにくくなり、アンダーシャツを着用した際の見栄えが良くなる。 The side part has a first side part existing above the side opening part in the height direction and a second side part existing below the side opening part in the height direction, and the first side part and the second side part A side opening can be formed. In this case, it is preferable that the lower end portion of the first side part is overlapped on the outside of the upper end portion of the second side part, and the side opening portion is formed in the overlapping portion of the first side part and the second side part. .. By forming the side opening portion in this way, the side opening portion is less likely to be caught by the uniform or the like worn on the outside of the undershirt, and it becomes easier to smoothly raise the arm or move it forward. In addition, the side portion of the wearer becomes difficult to see from the outside through the side opening portion, and the appearance when the undershirt is worn is improved.

第１脇パーツと第２脇パーツは、重ね合わせ部において、身幅方向の両側の接合部で互いに接合され、当該接合部間の長さが身長方向の下方にいくに従い短くなるように形成されていることが好ましい。このように第１脇パーツと第２脇パーツが形成されていれば、腕を上げたり前に出したり、あるいは腕を旋回させたりした際に、いずれの腕の角度方向においても第１脇パーツが腕の動きに引っ張られやすくなる。そのため、第１脇パーツの下端縁にしわが多数形成されたり、弛みが生じることが起こりにくくなり、第１脇パーツの下端縁が、外側に着用されるユニフォーム等に引っ掛かりにくくなる。 The first side part and the second side part are joined to each other at the joints on both sides in the width direction at the overlapping portion, and are formed so that the length between the joints becomes shorter toward the lower part in the height direction. It is preferable to have. If the first armpit part and the second armpit part are formed in this way, when the arm is raised, pushed forward, or the arm is swiveled, the first armpit part is formed in any of the angular directions of the arm. Is easily pulled by the movement of the arm. Therefore, a large number of wrinkles are less likely to occur on the lower end edge of the first side part or slack is less likely to occur, and the lower end edge of the first side part is less likely to be caught on the uniform or the like worn on the outside.

脇開き部が第１脇パーツと第２脇パーツの重ね合わせ部に形成される場合、第１脇パーツの下端縁は身長方向の上方に凸となる湾曲状に形成されていてもよい。このように第１脇パーツの下端縁が形成されることにより、第１脇パーツの下端縁がたるみにくくなり、アンダーシャツの脇部の見栄えが良くなる。また、第１脇パーツの下端縁が、外側に着用されるユニフォーム等により引っ掛かりにくくなる。この場合、さらに、第２脇パーツの上端縁が身長方向の下方に凸となる湾曲状に形成されていてもよく、これにより、着用者が脇を開いたときに、湾曲状の第１脇パーツの下端縁と第２脇パーツの上端縁によって脇開き部により広く開口が形成されやすくなり、脇開き部における通気性を高めることができる。また、ピッチングやスローイングの際、第１脇パーツと第２脇パーツの重ね合わせ部の身幅方向の両側に身長方向のせん断歪みが生じても、重ね合わせ部にしわや弛みが生じにくくなり、腕の旋回動作をスムーズに行いやすくなる。 When the side opening portion is formed in the overlapping portion of the first side part and the second side part, the lower end edge of the first side part may be formed in a curved shape that is convex upward in the height direction. By forming the lower end edge of the first side part in this way, the lower end edge of the first side part is less likely to sag, and the side part of the undershirt looks better. In addition, the lower end edge of the first side part is less likely to be caught by a uniform or the like worn on the outside. In this case, the upper end edge of the second armpit part may be further formed in a curved shape that is convex downward in the height direction, whereby when the wearer opens the armpit, the curved first armpit is formed. The lower edge of the part and the upper edge of the second side part make it easier for the side opening to form a wider opening, and the air permeability in the side opening can be improved. In addition, during pitching and throwing, even if shear strain in the height direction occurs on both sides of the overlapping portion of the first side part and the second side part in the width direction, wrinkles and slack are less likely to occur in the overlapping portion, and the arm It becomes easier to smoothly perform the turning operation of.

第１脇パーツは第１脇パーツの下端縁において折り返されていないか、第２脇パーツは第２脇パーツの上端縁において折り返されていないか、第１脇パーツは第１脇パーツの下端縁において折り返されておらず、かつ、第２脇パーツは第２脇パーツの上端縁において折り返されていないことが好ましい。これにより、脇開き部の近傍がごわつかずに柔軟に形成され、着用者がアンダーシャツを着用した際に脇部に違和感を覚えにくくなる。 The first side part is not folded back at the lower edge of the first side part, the second side part is not folded back at the upper edge of the second side part, or the first side part is the lower edge of the first side part It is preferable that the second side part is not folded back at the upper end edge of the second side part. As a result, the vicinity of the side opening portion is formed flexibly without being stiff, and when the wearer wears the undershirt, the side portion is less likely to feel uncomfortable.

上記のように第１脇パーツまたは第２脇パーツが形成される場合、第１脇パーツはフリーカット布地から構成され、第１脇パーツの端縁において折り返されていないか、第２脇パーツはフリーカット布地から構成され、第２脇パーツの上端縁において折り返されていないか、第１脇パーツはフリーカット布地から構成され、第１脇パーツの下端縁において折り返されておらず、かつ、第２脇パーツはフリーカット布地から構成され、第２脇パーツの上端縁において折り返されていないことが好ましい。このように第１脇パーツと第２脇パーツが構成されることにより、第１脇パーツの下端縁や第２脇パーツの上端縁でほつれが生じにくくなる。フリーカット布地は、ポリウレタン糸またはポリウレタン層を有しないものであることが好ましく、これにより、脇開き部の近傍のごわつきが抑えられ、脇部を軽量に形成することができる。 When the first side part or the second side part is formed as described above, the first side part is made of free-cut fabric and is not folded back at the edge of the first side part, or the second side part is It is composed of free-cut fabric and is not folded at the upper edge of the second side part, or the first side part is composed of free-cut fabric and is not folded at the lower edge of the first side part. It is preferable that the two side parts are made of free-cut fabric and are not folded back at the upper end edge of the second side part. By configuring the first side part and the second side part in this way, fraying is less likely to occur at the lower end edge of the first side part and the upper end edge of the second side part. The free-cut fabric preferably does not have a polyurethane thread or a polyurethane layer, which suppresses stiffness in the vicinity of the side opening and allows the side to be lightweight.

第１脇パーツは、第１脇パーツの下端縁の延在方向に沿った伸長応力が第１脇パーツの下端縁の延在方向に垂直な方向の伸長応力よりも大きいことが好ましい。このように第１脇パーツが構成されていれば、第１脇パーツは、第１脇パーツの下端縁の延在方向よりも、第１脇パーツの下端縁の延在方向に垂直な方向に対して伸長しやすくなる。脇部は、腕を上げ下ろしする際に、身長方向に対して特に負荷がかかるため、このように第１脇パーツが構成されていれば、腕を伸ばした方向に沿って第１脇パーツが伸長しやすくなり、腕をスムーズに動かしやすくなる。 It is preferable that the extension stress of the first side part along the extending direction of the lower end edge of the first side part is larger than the extension stress in the direction perpendicular to the extending direction of the lower end edge of the first side part. When the first side part is configured in this way, the first side part is in the direction perpendicular to the extending direction of the lower end edge of the first side part rather than the extending direction of the lower end edge of the first side part. On the other hand, it becomes easy to stretch. Since the armpits are particularly loaded in the height direction when raising and lowering the arms, if the first armpit parts are configured in this way, the first armpit parts extend along the direction in which the arms are extended. It will be easier to move your arm smoothly.

アンダーシャツは、胸部から腹部にかけて存在する前側パーツと、背骨に沿って存在する後側パーツと、脇部に第１脇パーツと第２脇パーツとを有し、第１脇パーツと第２脇パーツによって脇開き部が形成され、第１脇パーツにおける第１脇パーツの下端縁の延在方向に垂直な方向の伸長応力が、前側パーツと後側パーツの身長方向の伸長応力よりも大きいことが好ましい。このようにアンダーシャツが構成されていれば、腕を上げる動作をした際に、第１脇パーツよりも前側パーツと後側パーツの方が伸長しやすくなる。そのため、脇部や肩周りにおける突っ張り感が低減し、腕を上げる動作をスムーズに行いやすくなる。 The undershirt has a front part that exists from the chest to the abdomen, a rear part that exists along the spine, and a first side part and a second side part on the side, and the first side part and the second side part. The side opening is formed by the parts, and the extension stress in the direction perpendicular to the extending direction of the lower end edge of the first side part in the first side part is larger than the extension stress in the height direction of the front part and the rear part. Is preferable. If the undershirt is configured in this way, the front part and the rear part are more likely to extend than the first side part when the arm is raised. Therefore, the feeling of tension around the sides and shoulders is reduced, and it becomes easier to raise the arms smoothly.

アンダーシャツは、腕に沿って存在する袖パーツと、脇部に第１脇パーツと第２脇パーツとを有し、第１脇パーツと第２脇パーツによって脇開き部が形成され、第１脇パーツにおける第１脇パーツの下端縁の延在方向に垂直な方向の伸長応力が、袖パーツの身長方向の伸長応力よりも大きいことが好ましい。このようにアンダーシャツが構成されていれば、腕を上げたり前に出す動作をした際に、第１脇パーツよりも袖パーツの方が伸長しやすくなる。そのため、脇開き部が形成されていることと相まって、脇部や肩周りにおける突っ張り感が低減し、腕を動かす動作をスムーズに行いやすくなる。 The undershirt has a sleeve part that exists along the arm, a first side part and a second side part on the side, and the side opening part is formed by the first side part and the second side part, and the first side opening part is formed. It is preferable that the extension stress in the direction perpendicular to the extending direction of the lower end edge of the first side part in the side part is larger than the extension stress in the height direction of the sleeve part. If the undershirt is configured in this way, the sleeve parts are more likely to stretch than the first armpit parts when the arm is raised or pushed forward. Therefore, coupled with the formation of the side opening portion, the feeling of tension in the side portion and around the shoulder is reduced, and the movement of the arm can be smoothly performed.

本発明の野球用アンダーシャツは、脇部に脇開き部が形成されることにより、腕を上げた際に袖が腕の動きに追従しやすくなり、腕を上げる動作をスムーズに行うことができる。また、脇開き部が後半身側により長く形成されることにより、腕を前に出す動作をスムーズに行うことができる。そのため、ピッチングやスローイングなどの際に腕をスムーズに動かすことができる。 In the baseball undershirt of the present invention, since the side opening is formed on the side, the sleeves can easily follow the movement of the arm when the arm is raised, and the movement of raising the arm can be smoothly performed. .. In addition, since the side opening portion is formed longer on the latter half of the body side, the movement of pushing the arm forward can be smoothly performed. Therefore, the arm can be moved smoothly during pitching and throwing.

本発明の野球用アンダーシャツの一例を表し、アンダーシャツを前側から見た全体図を表す。An example of the baseball undershirt of the present invention is shown, and an overall view of the undershirt as viewed from the front side is shown. 図１に示した野球用アンダーシャツを後側から見た全体図を表す。The overall view of the baseball undershirt shown in FIG. 1 as viewed from the rear side is shown. アンダーシャツの脇部の平面図の一例を表す。An example of the plan view of the side part of the undershirt is shown. アンダーシャツの脇部の平面図の他の一例を表す。Another example of the plan view of the side of the undershirt is shown. アンダーシャツの脇部の平面図の他の一例を表す。Another example of the plan view of the side of the undershirt is shown.

本発明の野球用アンダーシャツについて、図面を参照して説明する。なお、本発明は図面に示された実施態様に限定されるものではない。図１〜図４には、本発明の野球用アンダーシャツの一例を示した。図１はアンダーシャツを前側から見た全体図を表し、図２はアンダーシャツを後側から見た全体図を表し、図３はアンダーシャツの脇部の平面図の一例を表し、図４および図５はアンダーシャツの脇部の平面図の他の例を表す。図１および図２では、アンダーシャツを構成する各パーツが一点鎖線で区分して表されている。 The baseball undershirt of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments shown in the drawings. 1 to 4 show an example of the baseball undershirt of the present invention. FIG. 1 shows an overall view of the undershirt as viewed from the front side, FIG. 2 represents an overall view of the undershirt as viewed from the rear side, FIG. 3 shows an example of a plan view of the side portion of the undershirt, and FIGS. FIG. 5 shows another example of a plan view of the side of the undershirt. In FIGS. 1 and 2, each part constituting the undershirt is represented by a alternate long and short dash line.

野球用アンダーシャツ１は袖を有する。アンダーシャツ１の袖の長さは特に限定されないが、本発明の効果がより奏効される点から袖は少なくとも肘まで延びていることが好ましく、前腕まで延びていることがより好ましい。アンダーシャツ１は、例えば五分袖、七分袖または長袖のシャツであることが好ましい。 The baseball undershirt 1 has sleeves. The length of the sleeves of the undershirt 1 is not particularly limited, but it is preferable that the sleeves extend to at least the elbows and more preferably the forearms from the viewpoint that the effects of the present invention are more effective. The undershirt 1 is preferably, for example, a half-sleeve, three-quarter-sleeve or long-sleeved shirt.

アンダーシャツ１は、複数のパーツを組み合わせて構成することができる。図面に示したアンダーシャツ１は、胸部から腹部に存在する前側パーツ２と、背骨に沿って存在する後側パーツ３とを有し、脇部に脇パーツ４，５が設けられている。脇パーツ４，５は、アンダーシャツ１の左右両側において、身幅方向に対し前側パーツ２と後側パーツ３の間に設けられる。腕には袖パーツ８が設けられている。図面に示したアンダーシャツ１では、袖パーツ８が腕から肩甲骨にかけて延在しているが、袖パーツ８は腕の付け根や肩まで延在し、肩甲骨まで延在しないものであってもよい。また、アンダーシャツ１は他の構成パーツを有するものであってもよい。各パーツは、編布、織布等の布地から構成されることが好ましく、当該布地は伸縮性を有することが好ましい。各パーツは、縫製、シームテープ、熱融着、接着剤等の公知の接合手段により、互いに接続することができる。縫製方法は特に限定されないが、縫合部分での引っ掛かりが少なくなる点から、フラットシーマ（４本針縫製）を採用することが好ましい。 The undershirt 1 can be configured by combining a plurality of parts. The undershirt 1 shown in the drawing has an anterior part 2 existing from the chest to the abdomen and a posterior part 3 existing along the spine, and side parts 4 and 5 are provided on the side. The side parts 4 and 5 are provided between the front part 2 and the rear part 3 in the width direction on both the left and right sides of the undershirt 1. A sleeve part 8 is provided on the arm. In the undershirt 1 shown in the drawing, the sleeve part 8 extends from the arm to the scapula, but the sleeve part 8 extends to the base of the arm and the shoulder and does not extend to the scapula. Good. Further, the undershirt 1 may have other constituent parts. Each part is preferably composed of a fabric such as a knitted fabric or a woven fabric, and the fabric is preferably elastic. The parts can be connected to each other by known joining means such as sewing, seam tape, heat fusion, adhesives and the like. The sewing method is not particularly limited, but it is preferable to use a flat seamer (four-needle sewing) from the viewpoint of reducing catching at the stitched portion.

アンダーシャツ１において、身長方向とは、着用者の頭から足にかけての方向に相当し、身幅方向とは、着用者の左右方向に相当する。アンダーシャツ１の身長方向と身幅方向は、着用者がアンダーシャツ１を着用した状態で定められる。身長方向に対しては上方と下方が定められ、身幅方向に対しては、身幅方向の中心線（着用者の左右方向の中心線に対応）を基準に、内方と外方が定められる。 In the undershirt 1, the height direction corresponds to the direction from the wearer's head to the feet, and the width direction corresponds to the wearer's left-right direction. The height direction and the width direction of the undershirt 1 are determined by the wearer wearing the undershirt 1. The upper and lower sides are defined in the height direction, and the inner and outer sides are defined in the width direction based on the center line in the width direction (corresponding to the center line in the left-right direction of the wearer).

アンダーシャツ１は前半身と後半身を有する。前半身と後半身は、アンダーシャツ１の体側部を身長方向に延びる境界線によって区分され、アンダーシャツ１を平面状に置いたときの前側部分を前半身とし、後側部分を後半身とする。前半身と後半身は、アンダーシャツ１を構成する各パーツとは無関係に規定される。 The undershirt 1 has a first half body and a second half body. The first half and the second half are separated by a boundary line extending in the height direction of the body side of the undershirt 1, and the front part when the undershirt 1 is placed on a flat surface is the front half and the back part is the second half. .. The first half and the second half are defined regardless of the parts that make up the undershirt 1.

アンダーシャツ１の脇部には、脇開き部６が設けられている。脇部は、袖の付け根の内側部分を含む部分、すなわち着用者の胴体と腕の接続部の内側部分を含む部分であり、例えば脇を閉じた状態で上腕（好ましくは上腕の上半分の部分）と体側部に挟まれた部分に相当する。脇部には、アンダーシャツ１の前半身側から後半身側にかけて脇開き部６が設けられている。具体的には、脇部は、脇開き部６より身長方向の上方に存在する第１脇パーツ４と、脇開き部６より身長方向の下方に存在する第２脇パーツ５を有し、第１脇パーツ４と第２脇パーツ５によって脇開き部６が形成されている。脇開き部６は脇部の少なくとも一部に形成され、例えば脇部から背中（特に肩甲骨）にかけて延在していてもよい。アンダーシャツ１は、脇開き部６において、アンダーシャツ１の内側の空間と外側の空間が連通する。 A side opening portion 6 is provided on the side portion of the undershirt 1. The armpit is the part including the inner part of the base of the sleeve, that is, the part including the inner part of the connection between the wearer's torso and the arm, for example, the upper arm (preferably the upper half of the upper arm) with the armpit closed. ) And the part sandwiched between the side of the body. A side opening portion 6 is provided on the side portion from the front half body side to the second half body side of the undershirt 1. Specifically, the side portion has a first side part 4 existing above the side opening portion 6 in the height direction, and a second side part 5 existing below the side opening portion 6 in the height direction. The side opening portion 6 is formed by the 1 side part 4 and the 2nd side part 5. The armpit opening 6 is formed in at least a part of the armpit, and may extend from the armpit to the back (particularly the scapula), for example. In the undershirt 1, the space inside the undershirt 1 and the space outside the undershirt 1 communicate with each other at the side opening portion 6.

脇開き部６は、前半身側から後半身側にかけて延在し、後半身側に存在している部分が前半身側に存在している部分よりも長くなっている。このように脇開き部６が形成されることにより、野球における様々な動作をスムーズに行うことができる。例えば脇開き部６を有しない場合は、腕を上げる動作の際に、袖が腕の動きにスムーズに追従せず、腕や肩周りが突っ張りやすくなる。しかし、脇部に脇開き部６が形成されることにより、腕を上げた際に袖が腕の動きに追従しやすくなり、腕を上げる動作をスムーズに行うことができる。また、脇開き部６が後半身側により長く形成されることにより、腕を前に出す動作をスムーズに行うことができる。そのため、アンダーシャツ１を着用することにより、特にピッチングやスローイングの動作をスムーズに行うことができる。また、肩周りの動きをスムーズにしつつ、脇部以外の箇所、例えば腕や胸部におけるサポート機能を好適に発揮させることが可能となる。 The side opening portion 6 extends from the front half body side to the second half body side, and the portion existing on the second half body side is longer than the portion existing on the front half body side. By forming the side opening portion 6 in this way, various movements in baseball can be smoothly performed. For example, when the side opening portion 6 is not provided, the sleeves do not smoothly follow the movement of the arm when the arm is raised, and the arm and the shoulder area are easily stretched. However, since the side opening portion 6 is formed on the side portion, the sleeve easily follows the movement of the arm when the arm is raised, and the movement of raising the arm can be smoothly performed. Further, since the side opening portion 6 is formed longer on the latter half of the body side, the movement of pushing the arm forward can be smoothly performed. Therefore, by wearing the undershirt 1, the pitching and throwing operations can be performed smoothly. In addition, it is possible to preferably exert the support function in a place other than the armpit, for example, the arm or the chest, while smoothing the movement around the shoulder.

脇開き部６は、肩甲骨またはその近傍まで延在していることが好ましい。これにより、肩周りを動かした際に肩甲骨の動きが阻害されにくくなり、特にピッチングやスローイングの際に腕を前に出す動作をスムーズに行いやすくなる。肩甲骨の近傍としては、肩甲骨から３ｃｍ以内が好ましく、２ｃｍ以内がより好ましく、１ｃｍ以内がさらに好ましい。 The side opening 6 preferably extends to or near the scapula. As a result, the movement of the scapula is less likely to be hindered when the shoulder circumference is moved, and it becomes easier to smoothly carry out the movement of pushing the arm forward especially during pitching or throwing. The vicinity of the scapula is preferably within 3 cm from the scapula, more preferably within 2 cm, and even more preferably within 1 cm.

脇開き部６は、アンダーシャツ１の前半身には長く形成されなくてよい。脇開き部６の前側は、例えば、乳頭よりも身幅方向の内方に延在しないことが好ましい。 The side opening portion 6 does not have to be formed long on the front body of the undershirt 1. It is preferable that the front side of the side opening portion 6 does not extend inward in the width direction of the nipple, for example.

脇開き部６の長さは、例えば４ｃｍ以上が好ましく、６ｃｍ以上がより好ましく、８ｃｍ以上がさらに好ましい。一方、脇開き部６の長さの上限については、２０ｃｍ以下が好ましく、１８ｃｍ以下がより好ましく、１５ｃｍ以下がさらに好ましい。前半身側に形成された脇開き部６の長さＬ１と後半身側に形成された脇開き部６の長さＬ２との比Ｌ１／Ｌ２は、肩周りの動きを広範囲にわたってスムーズにする点から、１０／９０以上が好ましく、２０／８０以上がより好ましく、またアンダーシャツ１の前半身側の見栄えを良くする点から、４５／５５以下が好ましく、４０／６０以下がより好ましい。 The length of the side opening portion 6 is, for example, preferably 4 cm or more, more preferably 6 cm or more, still more preferably 8 cm or more. On the other hand, the upper limit of the length of the side opening portion 6 is preferably 20 cm or less, more preferably 18 cm or less, and further preferably 15 cm or less. The ratio L1 / L2 of the length L1 of the side opening 6 formed on the front half of the body to the length L2 of the side opening 6 formed on the second half of the body makes the movement around the shoulders smooth over a wide range. Therefore, 10/90 or more is preferable, 20/80 or more is more preferable, and 45/55 or less is preferable, and 40/60 or less is more preferable from the viewpoint of improving the appearance of the front half of the undershirt 1.

脇開き部６は、身幅方向に平行に延びるように形成されていてもよく、身幅方向に対して斜めに延びるように形成されていてもよい。また、脇開き部６は、直線状に形成されていてもよく、曲線状に形成されていてもよい。脇開き部６が身幅方向に対して斜めに延びるように形成される場合、脇開き部６は、アンダーシャツ１の後半身側から前半身側に向かって身長方向の下方に延びるように形成されていてもよく、上方に延びるように形成されていてもよい。脇開き部６は、身幅方向に対して６０°以下の角度で延びることが好ましく、５０°以下がより好ましく、４０°以下がさらに好ましい。 The side opening portion 6 may be formed so as to extend parallel to the width direction of the body, or may be formed so as to extend obliquely with respect to the width direction of the body. Further, the side opening portion 6 may be formed in a straight line or in a curved shape. When the side opening portion 6 is formed so as to extend diagonally with respect to the width direction, the side opening portion 6 is formed so as to extend downward in the height direction from the latter half body side to the front half body side of the undershirt 1. It may be formed, or it may be formed so as to extend upward. The side opening portion 6 preferably extends at an angle of 60 ° or less with respect to the width direction, more preferably 50 ° or less, still more preferably 40 ° or less.

脇開き部６は、アンダーシャツ１の後半身側から前半身側に向かって身長方向の下方に延びるように形成されていることが好ましい。このように脇開き部６が形成されていれば、腕を上げたり前に出す動作をした際に、脇開き部６が開きやすくなり、ピッチングやスローイングの動作がよりスムーズになる。 It is preferable that the side opening portion 6 is formed so as to extend downward in the height direction from the latter half body side of the undershirt 1 toward the front half body side. If the side opening portion 6 is formed in this way, the side opening portion 6 can be easily opened when the arm is raised or pushed forward, and the pitching and throwing operations become smoother.

脇開き部６は、例えば図３に示すように、スリット状に形成することができる。この場合、第１脇パーツ４と第２脇パーツ５は、第１脇パーツ４の下端縁と第２脇パーツ５の上端縁とが平面視で互いに対向するように配置され、第１脇パーツ４の下端縁と第２脇パーツ５の上端縁の間のスリットが脇開き部６として機能する。脇開き部６がスリット状に形成される場合、スリットの両端部間の距離が脇開き部６の長さとなり、スリットの延在方向が脇開き部６の延在方向となる。 The side opening portion 6 can be formed in a slit shape, for example, as shown in FIG. In this case, the first side part 4 and the second side part 5 are arranged so that the lower end edge of the first side part 4 and the upper end edge of the second side part 5 face each other in a plan view, and the first side part The slit between the lower end edge of 4 and the upper end edge of the second side part 5 functions as the side opening portion 6. When the side opening portion 6 is formed in a slit shape, the distance between both ends of the slit is the length of the side opening portion 6, and the extending direction of the slit is the extending direction of the side opening portion 6.

脇開き部６は、図４に示すように、第２脇パーツ５の上端部の外側に第１脇パーツ４の下端部が重ねられ、第１脇パーツ４と第２脇パーツ５の重ね合わせ部７に形成されるものであってもよい。第１脇パーツ４の下端部は、第１脇パーツ４の下端縁を含み、第２脇パーツ５と重なる部分と規定され、第２脇パーツ５の上端部は、第２脇パーツ５の上端縁を含み、第１脇パーツ４と重なる部分と規定される。脇開き部６は、重ね合わせ部７において、第１脇パーツ４と第２脇パーツ５が身幅方向の両側の接合部で互いに接合され、その間で非接合とされることにより形成される。この場合、第１脇パーツ４の下端縁の非接合部分の両端部間の距離が脇開き部６の長さとなり、第１脇パーツ４の下端縁の非接合部分の延在方向が脇開き部６の延在方向となる。 As shown in FIG. 4, in the side opening portion 6, the lower end portion of the first side part 4 is overlapped on the outside of the upper end portion of the second side part 5, and the first side part 4 and the second side part 5 are overlapped. It may be formed in the part 7. The lower end of the first side part 4 is defined as a portion that includes the lower end edge of the first side part 4 and overlaps with the second side part 5, and the upper end of the second side part 5 is the upper end of the second side part 5. It is defined as a part that includes the edge and overlaps with the first side part 4. The side opening portion 6 is formed by joining the first side part 4 and the second side part 5 to each other at the joints on both sides in the width direction in the overlapping portion 7, and making them non-joined between them. In this case, the distance between both ends of the non-joined portion of the lower end edge of the first side part 4 is the length of the side opening portion 6, and the extending direction of the non-joined portion of the lower end edge of the first side part 4 is the side opening. It is the extending direction of the part 6.

図面には示されていないが、脇開き部６は、第１脇パーツ４の下端部の外側に第２脇パーツ５の上端部が重ねられ、第１脇パーツ４と第２脇パーツ５の重ね合わせ部に形成されるものであってもよい。この場合は、第２脇パーツ５の上端縁の非接合部分の両端部間の距離が脇開き部６の長さとなり、第２脇パーツ５の下端縁の非接合部分の延在方向が脇開き部６の延在方向となる。 Although not shown in the drawing, in the side opening portion 6, the upper end portion of the second armpit part 5 is overlapped on the outside of the lower end portion of the first armpit part 4, and the first armpit part 4 and the second armpit part 5 It may be formed in the overlapping portion. In this case, the distance between both ends of the non-joined portion of the upper end edge of the second side part 5 is the length of the side opening portion 6, and the extending direction of the non-joined portion of the lower end edge of the second side part 5 is the side. It is the extending direction of the opening portion 6.

脇開き部６は、図４に示すように、第２脇パーツ５の上端部の外側に第１脇パーツ４の下端部が重ねられ、第１脇パーツ４と第２脇パーツ５の重ね合わせ部７に形成されるものであることが好ましい。このように脇開き部６が形成されることにより、アンダーシャツ１の外側に着用するユニフォーム等に脇開き部６が引っ掛かりにくくなり、腕を上げたり前に出す動作をスムーズに行いやすくなる。また、脇開き部６を通して着用者の脇部が外側から見えにくくなり、アンダーシャツ１を着用した際の見栄えが良くなる。 As shown in FIG. 4, in the side opening portion 6, the lower end portion of the first side part 4 is overlapped on the outside of the upper end portion of the second side part 5, and the first side part 4 and the second side part 5 are overlapped. It is preferably formed in part 7. By forming the side opening portion 6 in this way, the side opening portion 6 is less likely to be caught on the uniform or the like worn on the outside of the undershirt 1, and it becomes easier to smoothly raise the arm or push it forward. Further, the side portion of the wearer becomes difficult to see from the outside through the side opening portion 6, and the appearance when the undershirt 1 is worn is improved.

図５には、図４に示した脇部の変形例を示した。図４では、第１脇パーツ４の下端縁と第２脇パーツ５の上端縁が直線状に形成されていたが、図５に示すように、第１脇パーツ４の下端縁は曲線状に形成されていてもよく、第２脇パーツ５の上端縁は曲線状に形成されていてもよい。なかでも、第２脇パーツ５の上端部の外側に第１脇パーツ４の下端部が重ねられて脇開き部６が形成される場合は、第１脇パーツ４の下端縁が身長方向の上方に凸となる湾曲状に形成されることが好ましい。このように第１脇パーツ４の下端縁が形成されることにより、第１脇パーツ４の下端縁がたるみにくくなり、アンダーシャツ１の脇部の見栄えが良くなる。また、第１脇パーツ４の下端縁が、外側に着用されるユニフォーム等により引っ掛かりにくくなる。なお、このように第１脇パーツ４の下端縁が曲線状に形成される場合、第１脇パーツ４の下端縁の非接合部分の両端部を結ぶ直線の延在方向が、第１脇パーツ４の下端縁の延在方向となり、また脇開き部６の延在方向となる。 FIG. 5 shows a modified example of the side portion shown in FIG. In FIG. 4, the lower end edge of the first side part 4 and the upper end edge of the second side part 5 are formed in a straight line, but as shown in FIG. 5, the lower end edge of the first side part 4 is curved. It may be formed, and the upper end edge of the second side part 5 may be formed in a curved shape. In particular, when the lower end portion of the first side part 4 is overlapped on the outer side of the upper end portion of the second side part 5 to form the side opening portion 6, the lower end edge of the first side part 4 is upward in the height direction. It is preferable that the shape is curved so as to be convex. By forming the lower end edge of the first side part 4 in this way, the lower end edge of the first side part 4 is less likely to sag, and the side portion of the undershirt 1 looks better. In addition, the lower end edge of the first side part 4 is less likely to be caught by a uniform or the like worn on the outside. When the lower end edge of the first side part 4 is formed in a curved shape in this way, the extending direction of the straight line connecting both ends of the non-joined portion of the lower end edge of the first side part 4 is the first side part. It is the extending direction of the lower end edge of 4, and is the extending direction of the side opening portion 6.

上記のように第１脇パーツ４の下端縁が身長方向の上方に凸となる湾曲状に形成される場合、第１脇パーツ４の下端縁の非接合部分の両端部を結ぶ直線の長さをＬ_1Hとし、第１脇パーツ４の下端縁上の点と当該直線との最大距離をＬ_1Vとすると、Ｌ_1VはＬ_1Hの０．０５倍以上が好ましく、０．１倍以上がより好ましく、また０．６倍以下が好ましく、０．５倍以下がより好ましく、０．４倍以下がさらに好ましい。 When the lower end edge of the first side part 4 is formed in a curved shape that is convex upward in the height direction as described above, the length of a straight line connecting both ends of the non-joined portion of the lower end edge of the first side part 4. was a L _IH, when the maximum distance between a point and the straight line on the lower edge of the first side part 4 and L _1V, L _1V is preferably at least 0.05 times the L _IH, more at least 0.1-fold It is preferable, 0.6 times or less is preferable, 0.5 times or less is more preferable, and 0.4 times or less is further preferable.

第２脇パーツ５の上端部の外側に第１脇パーツ４の下端部が重ねられて脇開き部６が形成される場合は、図５に示すように、第１脇パーツ４の下端縁が身長方向の上方に凸となる湾曲状に形成され、かつ、第２脇パーツ５の上端縁が身長方向の下方に凸となる湾曲状に形成されることも好ましい。このように第１脇パーツ４の下端縁と第２脇パーツ５の上端縁が形成されていれば、着用者が脇を開いたときに、湾曲状の第１脇パーツ４の下端縁と第２脇パーツ５の上端縁によって脇開き部６により広く開口が形成されやすくなり、脇開き部６における通気性を高めることができる。また、ピッチングやスローイングの際、第１脇パーツと第２脇パーツの重ね合わせ部の身幅方向の両側に身長方向のせん断歪みが生じても、重ね合わせ部にしわや弛みが生じにくくなり、腕の旋回動作をスムーズに行いやすくなる。さらに、第２脇パーツ５の上端縁が身長方向の下方に凸となる湾曲状に形成されることによって、第２脇パーツ５の上端縁が着用者の脇に接触しにくくなり、アンダーシャツ１の着用感をより高めることができる。この場合、脇開き部６を着用者の脇のより近くに設けることが可能となり、それにより脇部における通気性をより高めることができる。 When the lower end portion of the first side part 4 is overlapped on the outer side of the upper end portion of the second side part 5 to form the side opening portion 6, the lower end edge of the first side part 4 is formed as shown in FIG. It is also preferable that the upper end edge of the second side part 5 is formed in a curved shape that is convex upward in the height direction and is formed in a curved shape that is convex downward in the height direction. If the lower end edge of the first side part 4 and the upper end edge of the second side part 5 are formed in this way, the lower end edge and the first curved first side part 4 when the wearer opens the side. 2 The upper end edge of the side opening portion 5 makes it easier for the side opening portion 6 to form a wider opening, and the air permeability of the side opening portion 6 can be enhanced. In addition, during pitching and throwing, even if shear strain in the height direction occurs on both sides of the overlapping portion of the first side part and the second side part in the width direction, wrinkles and slack are less likely to occur in the overlapping portion, and the arm It becomes easier to smoothly perform the turning operation of. Further, since the upper end edge of the second side part 5 is formed in a curved shape that is convex downward in the height direction, the upper end edge of the second side part 5 is less likely to come into contact with the wearer's side, and the undershirt 1 It is possible to further enhance the wearing feeling of. In this case, the side opening portion 6 can be provided closer to the side of the wearer, whereby the air permeability in the side portion can be further enhanced.

上記のように第２脇パーツ５の上端縁が身長方向の下方に凸となる湾曲状に形成される場合、第２脇パーツ５の上端縁の非接合部分の両端部を結ぶ直線の長さをＬ_2Hとし、第２脇パーツ５の上端縁上の点と当該直線との最大距離をＬ_2Vとすると、Ｌ_2VはＬ_2Hの０．０５倍以上が好ましく、０．１倍以上がより好ましく、また０．６倍以下が好ましく、０．５倍以下がより好ましく、０．４倍以下がさらに好ましい。 When the upper end edge of the second side part 5 is formed in a curved shape that is convex downward in the height direction as described above, the length of a straight line connecting both ends of the non-joined portion of the upper end edge of the second side part 5. was a L _2H, and the maximum distance between a point and the straight line on the upper edge of the second side part 5 and L _2V, L _2V is preferably at least 0.05 times the L _2H, more at least 0.1-fold It is preferable, 0.6 times or less is preferable, 0.5 times or less is more preferable, and 0.4 times or less is further preferable.

上記では、第２脇パーツ５の上端部の外側に第１脇パーツ４の下端部が重ねられて脇開き部６が形成される場合において、第１脇パーツ４の下端縁が身長方向の上方に凸となる湾曲状に形成される態様、または、第１脇パーツ４の下端縁が身長方向の上方に凸となる湾曲状に形成され、かつ、第２脇パーツ５の上端縁が身長方向の下方に凸となる湾曲状に形成される態様を説明したが、アンダーシャツ１は、第１脇パーツ４の下端縁が直線状に形成され、第２脇パーツ５の上端縁が身長方向の下方に凸となる湾曲状に形成されてもよい。 In the above, when the lower end portion of the first side part 4 is overlapped on the outer side of the upper end portion of the second side part 5 to form the side opening portion 6, the lower end edge of the first side part 4 is upward in the height direction. The lower end edge of the first side part 4 is formed in a curved shape that is convex upward in the height direction, and the upper end edge of the second side part 5 is formed in the height direction. Although the mode in which the undershirt 1 is formed in a curved shape that is convex downward is described, in the undershirt 1, the lower end edge of the first side part 4 is formed in a straight line, and the upper end edge of the second side part 5 is in the height direction. It may be formed in a curved shape that is convex downward.

図面には示されていないが、第１脇パーツ４の下端部の外側に第２脇パーツ５の上端部が重ねられて脇開き部６が形成される場合は、第２脇パーツ５の上端縁が身長方向の下方に凸となる湾曲状に形成されることが好ましく、また第１脇パーツ４の下端縁が身長方向の上方に凸となる湾曲状に形成されることが好ましい。この場合は、第２脇パーツ５の上端縁の非接合部分の両端部を結ぶ直線の延在方向が、第２脇パーツ５の上端縁の延在方向となり、また脇開き部６の延在方向となる。 Although not shown in the drawing, when the upper end portion of the second side part 5 is overlapped on the outer side of the lower end portion of the first side part 4 to form the side opening portion 6, the upper end of the second side part 5 is formed. It is preferable that the edge is formed in a curved shape that is convex downward in the height direction, and it is preferable that the lower end edge of the first side part 4 is formed in a curved shape that is convex upward in the height direction. In this case, the extending direction of the straight line connecting both ends of the non-joined portion of the upper end edge of the second side part 5 is the extending direction of the upper end edge of the second side part 5, and the side opening portion 6 extends. It becomes the direction.

脇開き部６が、第２脇パーツ５の上端部の外側に第１脇パーツ４の下端部が重ねられた重ね合わせ部７に形成される場合、第１脇パーツ４と第２脇パーツ５は、重ね合わせ部７において身幅方向の両側で互いに接合された接合部間の長さが、身長方向の下方にいくに従い短くなるように形成されていることが好ましい。なお、第１脇パーツ４と第２脇パーツ５の接合部間の長さとは、第１脇パーツ４の下端縁の延在方向に対して平行な方向に対する長さを意味する。第１脇パーツ４の下端縁が曲線状に形成される場合は、第１脇パーツ４の下端縁の非接合部分の両端部を結ぶ直線の延在方向に対して平行な方向に対する長さを、第１脇パーツ４と第２脇パーツ５の接合部間の長さとする。このように第１脇パーツ４と第２脇パーツ５の重ね合わせ部７が形成されていれば、腕を上げたり前に出したり、あるいは腕を旋回させたりした際に、いずれの腕の角度方向においても第１脇パーツ４が腕の動きに引っ張られやすくなる。そのため、第１脇パーツ４の下端縁にしわが多数形成されたり、弛みが生じることが起こりにくくなり、第１脇パーツ４の下端縁が、外側に着用されるユニフォーム等に引っ掛かりにくくなる。 When the side opening portion 6 is formed in the overlapping portion 7 in which the lower end portion of the first side part 4 is overlapped on the outside of the upper end portion of the second side part 5, the first side part 4 and the second side part 5 are formed. Is preferably formed so that the length between the joints joined to each other on both sides in the width direction of the overlapping portion 7 becomes shorter toward the lower side in the height direction. The length between the joints of the first side part 4 and the second side part 5 means the length in the direction parallel to the extending direction of the lower end edge of the first side part 4. When the lower end edge of the first side part 4 is formed in a curved shape, the length in the direction parallel to the extending direction of the straight line connecting both ends of the non-joined portion of the lower end edge of the first side part 4 is set. , The length between the joints of the first side part 4 and the second side part 5. If the overlapping portion 7 of the first side part 4 and the second side part 5 is formed in this way, the angle of any arm when the arm is raised, put out forward, or the arm is swiveled. Also in the direction, the first side part 4 is easily pulled by the movement of the arm. Therefore, a large number of wrinkles are less likely to occur on the lower end edge of the first side part 4 and slack is less likely to occur, and the lower end edge of the first side part 4 is less likely to be caught on the uniform or the like worn on the outside.

第１脇パーツ４と第２脇パーツ５の重ね合わせ部７は、第１脇パーツ４の下端縁の延在方向に垂直な方向の長さ（最短長さ）が１ｃｍ以上であることが好ましく、２ｃｍ以上がより好ましく、３ｃｍ以上がさらに好ましい。このように重ね合わせ部７が形成されることにより、腕を動かした際に第２脇パーツ５の上端縁が露出しにくくなり、脇開き部６が、外側に着用されるユニフォーム等に引っ掛かりにくくなる。一方、第１脇パーツ４と第２脇パーツ５の重ね合わせ部７は、第１脇パーツ４の下端縁の延在方向に垂直な方向の長さ（最短長さ）が１２ｃｍ以下が好ましく、１０ｃｍ以下がより好ましく、８ｃｍ以下がさらに好ましい。これにより、脇開き部６における通気性を高めることができる。 The overlapping portion 7 of the first side part 4 and the second side part 5 preferably has a length (shortest length) of 1 cm or more in the direction perpendicular to the extending direction of the lower end edge of the first side part 4. 2 cm or more is more preferable, and 3 cm or more is further preferable. By forming the overlapping portion 7 in this way, the upper end edge of the second side part 5 is less likely to be exposed when the arm is moved, and the side opening portion 6 is less likely to be caught in a uniform or the like worn on the outside. Become. On the other hand, the overlapping portion 7 of the first side part 4 and the second side part 5 preferably has a length (shortest length) of 12 cm or less in the direction perpendicular to the extending direction of the lower end edge of the first side part 4. 10 cm or less is more preferable, and 8 cm or less is further preferable. Thereby, the air permeability in the side opening portion 6 can be enhanced.

第１脇パーツ４は、第１脇パーツ４の下端縁において折り返されていないことが好ましい。第２脇パーツ５は、第２脇パーツ５の上端縁において折り返されていないことが好ましい。これにより、脇開き部６の近傍がごわつかずに柔軟に形成され、着用者がアンダーシャツ１を着用した際に脇部に違和感を覚えにくくなる。この場合、第１脇パーツ４と第２脇パーツ５の少なくとも一方が上記のように形成されていることが好ましく、第１脇パーツ４と第２脇パーツ５の両方が上記のように形成されていることがより好ましい。 It is preferable that the first side part 4 is not folded back at the lower end edge of the first side part 4. It is preferable that the second side part 5 is not folded back at the upper end edge of the second side part 5. As a result, the vicinity of the side opening portion 6 is formed flexibly without being stiff, and when the wearer wears the undershirt 1, the side portion is less likely to feel uncomfortable. In this case, it is preferable that at least one of the first side part 4 and the second side part 5 is formed as described above, and both the first side part 4 and the second side part 5 are formed as described above. Is more preferable.

第１脇パーツ４が第１脇パーツ４の下端縁において折り返されずに形成される場合、第１脇パーツ４が布材から構成されていると、当該布材が第１脇パーツ４の下端縁でほつれるおそれがある。同様に、第２脇パーツ５が第２脇パーツ５の上端縁において折り返されずに形成される場合、第２脇パーツ５が布材から構成されていると、当該布材が第２脇パーツ５の上端縁でほつれるおそれがある。このような布材のほつれを防ぐため、第１脇パーツ４は下端縁にかがり縫いが施されていてもよく、第２脇パーツ５は上端縁にかがり縫いが施されていてもよい。これにより、第１脇パーツ４が下端縁で折り返されたり、第２脇パーツ５が上端縁で折り返される場合と比べて、脇開き部６の近傍のごわつきを低減することができる。 When the first side part 4 is formed at the lower end edge of the first side part 4 without being folded back, if the first side part 4 is composed of a cloth material, the cloth material is the lower end edge of the first side part 4. There is a risk of fraying. Similarly, when the second side part 5 is formed at the upper end edge of the second side part 5 without being folded back, if the second side part 5 is composed of a cloth material, the cloth material is the second side part 5. There is a risk of fraying at the upper edge of the cloth. In order to prevent such fraying of the cloth material, the first side part 4 may be overlocked on the lower end edge, and the second side part 5 may be overlocked on the upper end edge. As a result, it is possible to reduce the stiffness in the vicinity of the side opening portion 6 as compared with the case where the first side part 4 is folded back at the lower end edge and the second side part 5 is folded back at the upper end edge.

なお、第１脇パーツ４の下端縁や第２脇パーツ５の上端縁にかがり縫いが施される場合は、かがり縫いが施されない場合と比べると、脇開き部６の近傍の柔軟性がいくらか低下することは避けられない。従って、脇開き部６の近傍の柔軟性をより高める点から、第１脇パーツ４や第２脇パーツ５はフリーカット布地から構成されていることが好ましい。すなわち、第１脇パーツ４はフリーカット布地から構成され、第１脇パーツ４の端縁において折り返されていないことが好ましく、第２脇パーツ５はフリーカット布地から構成され、第２脇パーツ５の上端縁において折り返されていないことが好ましい。このように第１脇パーツ４と第２脇パーツ５が構成されることにより、第１脇パーツ４の下端縁や第２脇パーツ５の上端縁を切断縁から形成し、特にほつれ防止のための縫製加工を施さなくても、第１脇パーツ４の下端縁や第２脇パーツ５の上端縁で布材のほつれが生じにくくなる。また、脇開き部６の近傍での柔軟性を高めることができるため、アンダーシャツ１を着用した際に、着用者が脇部に違和感を覚えにくくなる。より好ましくは、アンダーシャツ１は、第１脇パーツ４がフリーカット布地から構成され、第１脇パーツ４の端縁において第１脇パーツ４が折り返されておらず、かつ、第２脇パーツ５がフリーカット布地から構成され、第２脇パーツ５の上端縁において第２脇パーツ５が折り返されないように形成される。 In addition, when the lower end edge of the first side part 4 and the upper end edge of the second side part 5 are overlocked, there is some flexibility in the vicinity of the side opening 6 as compared with the case where the overlock stitch is not applied. It is inevitable that it will decline. Therefore, it is preferable that the first side part 4 and the second side part 5 are made of free-cut fabric from the viewpoint of further increasing the flexibility in the vicinity of the side opening portion 6. That is, it is preferable that the first side part 4 is made of free-cut fabric and is not folded back at the edge of the first side part 4, the second side part 5 is made of free-cut cloth, and the second side part 5 is made of free-cut cloth. It is preferable that the upper edge of the cloth is not folded back. By configuring the first side part 4 and the second side part 5 in this way, the lower end edge of the first side part 4 and the upper end edge of the second side part 5 are formed from the cut edge, especially to prevent fraying. Even if the sewing process is not performed, the cloth material is less likely to fray at the lower end edge of the first side part 4 and the upper end edge of the second side part 5. Further, since the flexibility in the vicinity of the side opening portion 6 can be increased, the wearer is less likely to feel a sense of discomfort in the side portion when wearing the undershirt 1. More preferably, in the undershirt 1, the first side part 4 is made of a free-cut fabric, the first side part 4 is not folded back at the edge of the first side part 4, and the second side part 5 is Is made of free-cut fabric and is formed so that the second side part 5 is not folded back at the upper end edge of the second side part 5.

フリーカット布地とは、布地を切断した際の布地端の処理が不要な布地を意味する。フリーカット布地としては、例えば、弾性糸（例えばポリウレタン糸）を布地の編組織に編み込み、その編み込み構造によって布地端をほつれにくくしたもの；布地の編組織に融着糸を編み込み、熱処理を加えることによって、布地端をほつれにくくしたもの；布地に樹脂層（例えばポリウレタン層）を固着させることによって、布地端をほつれにくくしたもの；高密度編布や高密度織布から布地を構成することによって、布地端をほつれにくくしたもの等が挙げられる。なお、脇開き部６の近傍のごわつきを抑え、軽量に形成する点から、フリーカット布地はポリウレタン糸またはポリウレタン層を有しないことが好ましく、高密度編布または高密度織布から構成されることがより好ましい。 The free-cut fabric means a fabric that does not require treatment of the fabric edge when the fabric is cut. As a free-cut fabric, for example, an elastic yarn (for example, a polyurethane yarn) is knitted into a knitted structure of the fabric, and the knitted structure of the knitted fabric makes it difficult for the edges of the fabric to fray; By fixing the edge of the fabric to prevent it from fraying; by fixing a resin layer (for example, a polyurethane layer) to the fabric to prevent the edge of the fabric from fraying; by constructing the fabric from a high-density knitted fabric or a high-density woven fabric. Examples include those that prevent the edges of the fabric from fraying. The free-cut fabric preferably does not have a polyurethane yarn or a polyurethane layer, and is composed of a high-density knitted fabric or a high-density woven fabric, from the viewpoint of suppressing stiffness in the vicinity of the side opening portion 6 and forming a lightweight fabric. Is more preferable.

第１脇パーツ４は、第１脇パーツ４の下端縁の延在方向に沿った伸長応力が、第１脇パーツ４の下端縁の延在方向に垂直な方向の伸長応力よりも大きいことが好ましい。このように第１脇パーツ４が構成されていれば、第１脇パーツ４が、第１脇パーツ４の下端縁の延在方向よりも、第１脇パーツ４の下端縁の延在方向に垂直な方向に対して伸長しやすくなる。脇部は、腕を上げ下ろしする際に、身長方向に対して特に負荷がかかるため、このように第１脇パーツ４が構成されていれば、腕を伸ばした方向に沿って第１脇パーツ４が伸長しやすくなり、腕をスムーズに動かしやすくなる。 In the first side part 4, the extension stress along the extending direction of the lower end edge of the first side part 4 is larger than the extension stress in the direction perpendicular to the extending direction of the lower end edge of the first side part 4. preferable. If the first side part 4 is configured in this way, the first side part 4 is in the extending direction of the lower end edge of the first side part 4 rather than the extending direction of the lower end edge of the first side part 4. It is easy to extend in the vertical direction. Since the armpits are particularly loaded in the height direction when raising and lowering the arms, if the first armpit parts 4 are configured in this way, the first armpit parts 4 are along the direction in which the arms are extended. Is easier to stretch and the arm is easier to move smoothly.

第２脇パーツ５も、第１脇パーツ４と同じように、腕を伸ばした方向に沿って第２脇パーツ５が伸長しやすいことが好ましい。従って、第２脇パーツ５は、第２脇パーツ５の上端縁の延在方向に沿った伸長応力が、第２脇パーツ５の上端縁の延在方向に垂直な方向の伸長応力よりも大きいことが好ましい。このように第２脇パーツ５が構成されていれば、第２脇パーツ５は、第２脇パーツ５の下端縁の延在方向よりも、第２脇パーツ５の下端縁の延在方向に垂直な方向に対して伸長しやすくなる。 As for the second side part 5, it is preferable that the second side part 5 is easily extended along the direction in which the arm is extended, as in the case of the first side part 4. Therefore, in the second side part 5, the extension stress along the extending direction of the upper end edge of the second side part 5 is larger than the extension stress in the direction perpendicular to the extending direction of the upper end edge of the second side part 5. Is preferable. If the second side part 5 is configured in this way, the second side part 5 is in the extending direction of the lower end edge of the second side part 5 rather than the extending direction of the lower end edge of the second side part 5. It is easy to extend in the vertical direction.

上記に説明した第１脇パーツ４と第２脇パーツ５の伸長応力は、第１脇パーツ４または第２脇パーツ５を所定の方向に５０％伸長させた際の伸長応力として規定される。伸長応力は、測定対象となる試験片を引張試験機で引っ張り、その際の応力を測定することにより求める。具体的には、１インチ（２．５４ｃｍ）の幅で切り出した試験片を、つかみ間隔が１００ｍｍとなるように留め具間に固定する。そして、試験片を引張速度２００ｍｍ／分で引っ張りながら、留め具間の距離が１５０ｍｍになったときの応力を測定する。後述する前側パーツ２と後側パーツ３の伸長応力についても、同様にして求める。 The elongation stress of the first side part 4 and the second side part 5 described above is defined as the extension stress when the first side part 4 or the second side part 5 is extended by 50% in a predetermined direction. The elongation stress is obtained by pulling the test piece to be measured with a tensile tester and measuring the stress at that time. Specifically, a test piece cut out with a width of 1 inch (2.54 cm) is fixed between fasteners so that the gripping interval is 100 mm. Then, while pulling the test piece at a tensile speed of 200 mm / min, the stress when the distance between the fasteners reaches 150 mm is measured. The elongation stress of the front part 2 and the rear part 3, which will be described later, is also obtained in the same manner.

第１脇パーツ４を、第１脇パーツ４の下端縁の延在方向に沿って５０％伸長させたときの伸長応力をＦ_1Hとし、第１脇パーツ４を、第１脇パーツ４の下端縁の延在方向に垂直な方向に５０％伸長させたときの伸長応力をＦ_1Vとしたとき、Ｆ_1HはＦ_1Vの１．２倍以上が好ましく、１．５倍以上がより好ましい。一方、第１脇パーツ４は、伸長応力の異方性が強すぎないことが望ましいことから、Ｆ_1HはＦ_1Vの３．０倍以下が好ましく、２．５倍以下がより好ましい。 The extension stress when the first side part 4 is extended by 50% along the extending direction of the lower end edge of the first side part 4 is F _1H, and the first side part 4 is the lower end of the first side part 4. when the tensile stress at which the extending direction of the edge was extended 50% in a direction perpendicular to the F _1V, F _IH is preferably at least 1.2 times the F _1V, more preferably not less than 1.5 times. On the other hand, since it is desirable that the anisotropy of the elongation stress of the first side part 4 is not too strong, F _1H is preferably 3.0 times or less, more preferably 2.5 times or less of F _1V .

第２脇パーツ５を、第２脇パーツ５の下端縁の延在方向に沿って５０％伸長させたときの伸長応力をＦ_2Hとし、第２脇パーツ５を、第２脇パーツ５の下端縁の延在方向に垂直な方向に５０％伸長させたときの伸長応力をＦ_2Vとしたとき、Ｆ_2HはＦ_2Vの１．２倍以上が好ましく、１．５倍以上がより好ましく、また３．０倍以下が好ましく、２．５倍以下がより好ましい。 The extension stress when the second side part 5 is extended by 50% along the extending direction of the lower end edge of the second side part 5 is F _2H, and the second side part 5 is the lower end of the second side part 5. when the tensile stress at which the extending direction of the edge was extended 50% in a direction perpendicular to the F _2V, F _2H is preferably at least 1.2 times the F _2V, more preferably at least 1.5 times, also It is preferably 3.0 times or less, and more preferably 2.5 times or less.

Ｆ_1HとＦ_2Hの具体的な値としては、例えば、７．０Ｎ以上が好ましく、１０．０Ｎ以上がより好ましく、また２５．０Ｎ以下が好ましく、２０．０Ｎ以下がより好ましい。Ｆ_1VとＦ_2Vは、例えば、５．０Ｎ以上が好ましく、６．０Ｎ以上がより好ましく、また２０．０Ｎ以下が好ましく、１５．０Ｎ以下がより好ましい。 As specific values of F _1H and F _2H , for example, 7.0 N or more is preferable, 10.0 N or more is more preferable, 25.0 N or less is preferable, and 20.0 N or less is more preferable. For F _1V and F _2V , for example, 5.0 N or more is preferable, 6.0 N or more is more preferable, 20.0 N or less is preferable, and 15.0 N or less is more preferable.

第１脇パーツ４における第１脇パーツ４の下端縁の延在方向に垂直な方向の伸長応力は、前側パーツ２と後側パーツ３の身長方向の伸長応力よりも大きいことが好ましい。このようにアンダーシャツ１が構成されていれば、腕を上げる動作をした際に、第１脇パーツ４よりも前側パーツ２と後側パーツ３の方が伸長しやすくなる。そのため、脇部や肩周りにおける突っ張り感が低減し、腕を上げる動作をスムーズに行いやすくなる。 It is preferable that the extension stress in the direction perpendicular to the extending direction of the lower end edge of the first side part 4 in the first side part 4 is larger than the extension stress in the height direction of the front part 2 and the rear part 3. If the undershirt 1 is configured in this way, the front part 2 and the rear part 3 are more likely to extend than the first side part 4 when the arm is raised. Therefore, the feeling of tension around the sides and shoulders is reduced, and it becomes easier to raise the arms smoothly.

第１脇パーツ４における第１脇パーツ４の下端縁の延在方向に垂直な方向の伸長応力は、前側パーツ２と後側パーツ３の身幅方向の伸長応力よりも大きいことが好ましい。このようにアンダーシャツ１が構成されていれば、腕を前に出す動作をした際に、第１脇パーツ４よりも前側パーツ２と後側パーツ３の方が伸長しやすくなる。そのため、脇部や肩周りにおける突っ張り感が低減し、腕を前に出す動作をスムーズに行いやすくなる。 It is preferable that the extension stress in the direction perpendicular to the extending direction of the lower end edge of the first side part 4 in the first side part 4 is larger than the extension stress in the width direction of the front part 2 and the rear part 3. If the undershirt 1 is configured in this way, the front part 2 and the rear part 3 are more likely to extend than the first side part 4 when the arm is pushed forward. Therefore, the feeling of tension around the sides and shoulders is reduced, and it becomes easier to smoothly move the arm forward.

上記のように第１脇パーツ４における第１脇パーツ４の下端縁の延在方向に垂直な方向の伸長応力が、前側パーツ２と後側パーツ３の身長方向の伸長応力と身幅方向の伸長応力よりも大きい場合、前側パーツ２と後側パーツ３は、身長方向の伸長応力が身幅方向の伸長応力よりも大きいことが好ましい。ピッチングやスローイングでは、腕は特に前に強く出すように動かすため、そのような動作をよりスムーズに行えるようにすることが好ましい。そのため、前側パーツ２と後側パーツ３が、身長方向の伸長応力が身幅方向の伸長応力よりも大きくなるように構成されていれば、前側パーツ２と後側パーツ３は身幅方向により伸長しやすくなり、脇開き部６が設けられることと相まって、腕を前に向かってよりスムーズに動かしやすくなる。 As described above, the extension stress in the direction perpendicular to the extending direction of the lower end edge of the first side part 4 in the first side part 4 is the extension stress in the height direction and the extension in the width direction of the front part 2 and the rear part 3. When the stress is larger than the stress, it is preferable that the extension stress in the height direction of the front part 2 and the rear part 3 is larger than the extension stress in the width direction. In pitching and throwing, the arm is moved so as to push forward particularly strongly, and it is preferable to make such a movement smoother. Therefore, if the front part 2 and the rear part 3 are configured so that the extension stress in the height direction is larger than the extension stress in the width direction, the front part 2 and the rear part 3 are more likely to extend in the width direction. Therefore, coupled with the provision of the side opening portion 6, it becomes easier to move the arm forward more smoothly.

第２脇パーツ５も、上記のように構成されていることが好ましい。すなわち、第２脇パーツ５における第２脇パーツ５の上端縁の延在方向に垂直な方向の伸長応力は、前側パーツ２と後側パーツ３の身長方向の伸長応力よりも大きいことが好ましい。また、第２脇パーツ５における第２脇パーツ５の上端縁の延在方向に垂直な方向の伸長応力は、前側パーツ２と後側パーツ３の身幅方向の伸長応力よりも大きいことが好ましい。 The second side part 5 is also preferably configured as described above. That is, it is preferable that the extension stress of the second side part 5 in the direction perpendicular to the extending direction of the upper end edge of the second side part 5 is larger than the extension stress in the height direction of the front part 2 and the rear part 3. Further, it is preferable that the extension stress of the second side part 5 in the direction perpendicular to the extending direction of the upper end edge of the second side part 5 is larger than the extension stress in the width direction of the front part 2 and the rear part 3.

前側パーツ２を身長方向に沿って５０％伸長させたときの伸長応力をＦ_3Vとし、後側パーツ３を身長方向に沿って５０％伸長させたときの伸長応力をＦ_4Vとしたとき、Ｆ_1V（またはＦ_2V）はＦ_3VとＦ_4Vの１．１倍以上が好ましく、１．２倍以上がより好ましく、また２．５倍以下が好ましく、２．０倍以下がより好ましい。前側パーツ２を身幅方向に沿って５０％伸長させたときの伸長応力をＦ_3Hとし、後側パーツ３を身幅方向に沿って５０％伸長させたときの伸長応力をＦ_4Hとしたとき、Ｆ_1V（またはＦ_2V）はＦ_3HとＦ_4Hの１．５倍以上が好ましく、２．０倍以上がより好ましく、また８．０倍以下が好ましく、６．０倍以下がより好ましい。Ｆ_3VはＦ_3Hの１．５倍以上が好ましく、１．８倍以上がより好ましく、また６．０倍以下が好ましく、５．０倍以下がより好ましい。Ｆ_4VはＦ_4Hの１．５倍以上が好ましく、１．８倍以上がより好ましく、また６．０倍以下が好ましく、５．０倍以下がより好ましい。 When the elongation stress when the front part 2 is extended by 50% along the height direction is F _3V, and when the extension stress when the rear part 3 is extended by 50% along the height direction is F _4V , it is F. _1V (or F _2V ) is preferably 1.1 times or more, more preferably 1.2 times or more, more preferably 2.5 times or less, and more preferably 2.0 times or less of F _3V and F _4V . When the elongation stress when the front part 2 is extended by 50% along the width direction is F _3H, and when the extension stress when the rear part 3 is extended by 50% along the width direction is F _4H , it is F. _1V (or F _2V ) is preferably 1.5 times or more, more preferably 2.0 times or more, more preferably 8.0 times or less, and more preferably 6.0 times or less of F _3H and F _4H . F _3V is preferably 1.5 times or more, more preferably 1.8 times or more, more preferably 6.0 times or less, and more preferably 5.0 times or less of F _3H . F _4V is preferably 1.5 times or more, more preferably 1.8 times or more, more preferably 6.0 times or less, and more preferably 5.0 times or less of F _4H .

Ｆ_3VとＦ_4Vの具体的な値としては、例えば、２．０Ｎ以上が好ましく、３．０Ｎ以上がより好ましく、また１２．０Ｎ以下が好ましく、１０．０Ｎ以下がより好ましい。Ｆ_3HとＦ_4Hは、例えば、１．０Ｎ以上が好ましく、１．５Ｎ以上がより好ましく、また８．０Ｎ以下が好ましく、６．０Ｎ以下がより好ましい。 As specific values of F _3V and F _4V , for example, 2.0N or more is preferable, 3.0N or more is more preferable, 12.0N or less is preferable, and 10.0N or less is more preferable. For F _3H and F _4H , for example, 1.0 N or more is preferable, 1.5 N or more is more preferable, 8.0 N or less is preferable, and 6.0 N or less is more preferable.

第１脇パーツ４における第１脇パーツ４の下端縁の延在方向に垂直な方向の伸長応力は、袖パーツ８の身長方向（すなわち腕の延在方向）の伸長応力よりも大きいことが好ましい。このようにアンダーシャツ１が構成されていれば、腕を上げたり前に出す動作をした際に、第１脇パーツ４よりも袖パーツ８の方が伸長しやすくなる。そのため、脇開き部６が形成されていることと相まって、脇部や肩周りにおける突っ張り感が低減し、腕を動かす動作をスムーズに行いやすくなる。 The extension stress of the first side part 4 in the direction perpendicular to the extension direction of the lower end edge of the first side part 4 is preferably larger than the extension stress in the height direction of the sleeve part 8 (that is, the extension direction of the arm). .. If the undershirt 1 is configured in this way, the sleeve part 8 is more likely to extend than the first side part 4 when the arm is raised or pushed forward. Therefore, in combination with the formation of the side opening portion 6, the feeling of tension in the side portion and around the shoulder is reduced, and the movement of the arm can be smoothly performed.

第２脇パーツ５も、上記のように構成されていることが好ましい。すなわち、第２脇パーツ５における第２脇パーツ５の上端縁の延在方向に垂直な方向の伸長応力は、袖パーツ８の身長方向の伸長応力よりも大きいことが好ましい。 The second side part 5 is also preferably configured as described above. That is, it is preferable that the extension stress of the second side part 5 in the direction perpendicular to the extending direction of the upper end edge of the second side part 5 is larger than the extension stress in the height direction of the sleeve part 8.

袖パーツ８を身長方向に沿って５０％伸長させたときの伸長応力をＦ_5Vとしたとき、Ｆ_1V（またはＦ_2V）はＦ_5Vの１．５倍以上が好ましく、２．０倍以上がより好ましく、また８．０倍以下が好ましく、６．０倍以下がより好ましい。Ｆ_5Vの具体的な値としては、例えば、１．０Ｎ以上が好ましく、１．５Ｎ以上がより好ましく、また８．０Ｎ以下が好ましく、６．０Ｎ以下がより好ましい。 When the elongation stress when the sleeve part 8 is extended by 50% along the height direction is F _5V , F _1V (or F _2V ) is preferably 1.5 times or more of F _5V , and 2.0 times or more. More preferably, 8.0 times or less is preferable, and 6.0 times or less is more preferable. As a specific value of F _5V , for example, 1.0 N or more is preferable, 1.5 N or more is more preferable, 8.0 N or less is preferable, and 6.0 N or less is more preferable.

前側パーツ２と後側パーツ３の身長方向の伸長応力は、袖パーツ８の身長方向の伸長応力よりも大きいことが好ましい。このようにアンダーシャツ１が構成されていれば、腕を上げたり前に出す動作をした際に、前側パーツ２や後側パーツ３よりも袖パーツ８の方が伸長しやすくなる。そのため、腕を動かす動作、特に肘を曲げ伸ばしする動作をよりスムーズに行いやすくなる。Ｆ_3V（またはＦ_4V）はＦ_5Vの１．５倍以上が好ましく、１．８倍以上がより好ましく、また６．０倍以下が好ましく、５．０倍以下がより好ましい。 It is preferable that the extension stress of the front part 2 and the rear part 3 in the height direction is larger than the extension stress of the sleeve part 8 in the height direction. If the undershirt 1 is configured in this way, the sleeve part 8 is more likely to stretch than the front part 2 and the rear part 3 when the arm is raised or pushed forward. Therefore, it becomes easier to move the arm, particularly to bend and stretch the elbow more smoothly. F _3V (or F _4V ) is preferably 1.5 times or more, more preferably 1.8 times or more, more preferably 6.0 times or less, and more preferably 5.0 times or less of F _5V .

アンダーシャツ１を構成する各パーツは、編布または織布から構成されることが好ましい。編布の編組織は特に限定されず、公知の編組織を採用すればよい。編布の編組織としては、平編、ゴム編、両面編、ハーフ編等が挙げられる。織布の織組織は特に限定されず、公知の織組織を採用すればよい。織布の織組織としては、平織、綾織、朱子織等が挙げられる。より好ましくは、アンダーシャツ１を構成する各パーツは編布から構成される。 Each part constituting the undershirt 1 is preferably made of a knitted cloth or a woven cloth. The knitting structure of the knitted fabric is not particularly limited, and a known knitting structure may be adopted. Examples of the knitting structure of the knitted fabric include flat knitting, rubber knitting, double-sided knitting, and half knitting. The woven structure of the woven fabric is not particularly limited, and a known woven structure may be adopted. Examples of the weaving structure of the woven fabric include plain weave, twill weave, satin weave and the like. More preferably, each part constituting the undershirt 1 is composed of a knitted fabric.

１：野球用アンダーシャツ
２：前側パーツ
３：後側パーツ
４：第１脇パーツ
５：第２脇パーツ
６：脇開き部
７：重ね合わせ部
８：袖パーツ 1: Undershirt for baseball 2: Front part 3: Rear part 4: 1st side part 5: 2nd side part 6: Side opening part 7: Overlapping part 8: Sleeve part

Claims

A baseball undershirt with a side opening that extends from the front to the second half of the body.
The side opening portion is formed so as late moiety present only side rather long than moiety present in front body half side, extending below the height direction from the second half body side before half-body side Undershirt for baseball that is characterized by being .

A baseball undershirt with a side opening that extends from the front to the second half of the body.
The side portion has a first side part existing above the side opening portion in the height direction and a second side part existing below the side opening portion in the height direction, and the first side part and the second side part. The side opening is formed by the side parts,
The lower end portion of the first side part is overlapped on the outside of the upper end portion of the second side part, and the side opening portion is formed in the overlapping portion of the first side part and the second side part .
The side opening portion is a baseball undershirt characterized in that the portion existing on the second half body side is longer than the portion existing on the front half body side .

The first side part and the second side part is, in the superposed section, are joined to each other on both sides of the junction of the body width direction, in claim 2 in which the length between the junction is shortened as it goes below the height direction The listed baseball undershirt.

The baseball undershirt according to claim 2 or 3 , wherein the lower end edge of the first side part is formed in a curved shape that is convex upward in the height direction.

The baseball undershirt according to claim 4 , wherein the upper end edge of the second side part is formed in a curved shape that is convex downward in the height direction.

A baseball undershirt with a side opening that extends from the front to the second half of the body.
The side portion includes a first side part which is present above the height direction from the side opening portion, a second side part that is present in the body height direction below the said side opening portion, the first side part and the second The side opening is formed by the side parts,
The first side part is not folded back at the lower edge of the first side part, the second side part is not folded back at the upper edge of the second side part, or the first side part is the lower edge of the first side part The second side part is not folded back at the upper edge of the second side part, and is not folded back .
The side opening portion is a baseball undershirt characterized in that the portion existing on the second half body side is longer than the portion existing on the front half body side .

The first side part is made of free-cut fabric and is not folded at the edge of the first side part, or the second side part is made of free-cut fabric and is not folded at the top edge of the second side part. Or, the first side part is made of free-cut fabric and is not folded back at the lower edge of the first side part, and the second side part is made of free-cut fabric at the upper edge of the second side part. The baseball undershirt according to claim 6 , which is not folded back.

The baseball undershirt according to claim 7 , wherein the free-cut fabric does not have a polyurethane thread or a polyurethane layer.

A baseball undershirt with a side opening that extends from the front to the second half of the body.
The side portion includes a first side part which is present above the height direction from the side opening portion, a second side part that is present in the body height direction below the said side opening portion, the first side part and the second The side opening is formed by the side parts,
In the side opening portion, the portion existing on the latter half body side is longer than the portion existing on the front half body side.
The first side part, baseball tensile stress along the extending direction of the lower edge of the first side parts being larger than the tensile stress in the direction perpendicular to the extending direction of the lower edge of the first side part Undershirt for.

A baseball undershirt with a side opening that extends from the front to the second half of the body.
The undershirt includes an anterior part existing from the chest to the abdomen, a posterior part existing along the spine, a first armpit part existing above the armpit opening in the height direction, and an armpit opening. It has a second side part that exists below the part in the height direction, and a side opening part is formed by the first side part and the second side part.
In the side opening portion, the portion existing on the latter half body side is longer than the portion existing on the front half body side.
A baseball undershirt characterized in that the extension stress in the direction perpendicular to the extending direction of the lower end edge of the first side part in the first side part is larger than the extension stress in the height direction of the front part and the rear part.

A baseball undershirt with a side opening that extends from the front to the second half of the body.
The undershirt has a sleeve part that exists along the arm, a first side part that exists above the side opening in the height direction, and a second that exists below the side opening in the height direction. It has side parts, and the side opening part is formed by the first side part and the second side part.
In the side opening portion, the portion existing on the latter half body side is longer than the portion existing on the front half body side.
A baseball undershirt characterized in that the extension stress of the first side part in the direction perpendicular to the extending direction of the lower end edge of the first side part is larger than the extension stress in the height direction of the sleeve part.