JP2008298218A - Bolt looseness preventive structure - Google Patents

Bolt looseness preventive structure Download PDF

Info

Publication number
JP2008298218A
JP2008298218A JP2007146394A JP2007146394A JP2008298218A JP 2008298218 A JP2008298218 A JP 2008298218A JP 2007146394 A JP2007146394 A JP 2007146394A JP 2007146394 A JP2007146394 A JP 2007146394A JP 2008298218 A JP2008298218 A JP 2008298218A
Authority
JP
Japan
Prior art keywords
bolt
elastic body
female screw
screw hole
screwed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2007146394A
Other languages
Japanese (ja)
Other versions
JP4698636B2 (en
Inventor
Yasuyuki Suzuki
康之 鈴木
Yukihiro Takemoto
幸弘 竹本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KFC Ltd
Original Assignee
KFC Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KFC Ltd filed Critical KFC Ltd
Priority to JP2007146394A priority Critical patent/JP4698636B2/en
Publication of JP2008298218A publication Critical patent/JP2008298218A/en
Application granted granted Critical
Publication of JP4698636B2 publication Critical patent/JP4698636B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To easily and surely lock a bolt by preventing looseness, when installing, fastening and fixing various articles only by a bolt without using, for example, a nut, and even when the bolt does not project from the nut, in a bolt looseness preventive structure for preventing loosening or falling-off when the bolt for installing, fastening and fixing, for example, the various articles gradually loosens by vibration. <P>SOLUTION: This bolt looseness preventive structure is provided for preventing looseness of the bolt 1 screwed in a female screw hole (h). A thin diameter part 12 having a diameter smaller than a male screw part 11 of the bolt 1 is arranged in a tip part of the bolt 1. A spiral elastic body 2 threadedly engaging with the female screw hole (h) and brought into pressure contact with an inner surface of the female screw hole (h), is arranged around the thin diameter part 12. One end 2a of the spiral elastic body 2 is connected to and held by the thin diameter part 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、例えば各種物品等を取付けたり締付け固定するためのボルトが振動等で次第に緩んでガタついたり抜け落ちるのを防ぐためのボルト緩み止め構造に関する。   The present invention relates to a bolt loosening prevention structure for preventing, for example, bolts for attaching or tightening various articles and the like from gradually loosening due to vibration or the like and rattling or falling off.

従来、例えば各種の物品等を被取付部材に取付けたり締付け固定する場合には、被取付部材に形成した雌ねじ孔にボルトをねじ込んで各種物品を取付けたり、被取付部材に貫通させて設けたボルト挿通孔にボルトを挿通しナットをねじ込んで締付け固定すること等が行われている。ところが、上記のボルトやナットは振動等により時間の経過と共に次第に緩んでガタついたり脱落するおそれがある。   Conventionally, when, for example, various articles are attached to a member to be attached or tightened and fixed, a bolt is screwed into a female screw hole formed in the member to be attached, and various articles are attached, or bolts provided through the member to be attached. For example, a bolt is inserted into the insertion hole, and a nut is screwed and fixed. However, the bolts and nuts described above may gradually loosen over time due to vibration or the like and may rattle or fall off.

上記のボルトやナットの緩みを防止する手段として、従来は一般にスプリングワッシャを用いているが、そのスプリングワッシャと、それが当接するボルト頭部や被取付部材との接触面は、通常ほぼ平滑な面であるため摩擦抵抗が少なく、しかも長期間使用するとスプリングワッシャのばね力が次第に低下して上記接触面にすべりが生じ、ボルトが徐々に回動して緩みを生じる。そして一旦ボルトが緩んでしまうと、その後は殆ど抵抗なく自由に回動して脱落する等のおそれがある。   Conventionally, a spring washer is generally used as a means for preventing the above bolts and nuts from loosening. However, the contact surface between the spring washer and the bolt head or the member to be attached is usually almost smooth. Since this is a surface, the frictional resistance is small, and when it is used for a long period of time, the spring force of the spring washer gradually decreases, slipping occurs on the contact surface, and the bolt gradually turns to cause looseness. Once the bolt is loosened, there is a risk that it will rotate freely with little resistance and fall off.

そこで、上記のボルトやナットの緩みを更に確実に防止する手段として各種の緩み止め構造が提案されており、その一種として下記特許文献1,2のようにコイルばね等の螺旋状もしくはリング状の弾性体を用いることが提案されている。すなわち、上記文献1,2のものは被取付部材に貫通させて設けたボルト挿通孔にボルトを挿通してナットをねじ込み、そのナットから突出したボルトの先端部外周に螺旋状もしくはリング状の弾性体を嵌めて圧接させると共に、その弾性体を上記ナットの端面に当接させて、そのナットの回動を阻止し、それによってナットやボルトが緩むのを防止する構成である。   Therefore, various types of loosening prevention structures have been proposed as means for more reliably preventing the bolts and nuts from loosening. As one type, a helical or ring-like structure such as a coil spring as described in Patent Documents 1 and 2 below. It has been proposed to use an elastic body. That is, in the above-mentioned documents 1 and 2, a bolt is inserted into a bolt insertion hole provided through a member to be attached, and a nut is screwed, and a helical or ring-shaped elastic is formed on the outer periphery of the tip of the bolt protruding from the nut. The body is fitted and press-contacted, and the elastic body is brought into contact with the end face of the nut to prevent the nut from rotating, thereby preventing the nut and bolt from loosening.

しかし、上記のような緩み止め構造は、ボルトの先端部がナットから突出していない場合やナットを用いない場合などには適用することができない。例えば筒状の長ナット内にその長さ範囲内でボルトをねじ込んで各種物品を取付ける場合、或いは通常のナットを用いる場合でもそのナットからボルトの先端部が突出しない場合には適用できない。さらに例えば被取付部材に非貫通状態で形成した雌ねじ孔にボルトをねじ込んで各種物品を取付けるような場合には適用することができない。   However, the locking structure as described above cannot be applied when the tip of the bolt does not protrude from the nut or when the nut is not used. For example, this is not applicable when a bolt is screwed into a cylindrical long nut within the length range to mount various articles, or when a normal nut is used and the tip of the bolt does not protrude from the nut. Further, for example, the present invention cannot be applied to a case where various articles are attached by screwing a bolt into a female screw hole formed in a non-penetrating state in the attached member.

一方、上記のような場合、特にナットを用いることなくボルトのみで各種物品等を取付ける場合でも該ボルトの緩みを防止することのできる緩み止め構造としては下記特許文献3,4のように接着材やゴム等を用いるものが提案されている。すなわち、上記文献3はボルトの頭部等を接着材で固定するものであり、文献4はボルトの雄ねじ部に形成した母線方向の凹部に沿ってゴム等の摩擦係数の大きい部材を設けることによって該ボルトの回動抵抗を高め、それによってボルトの緩みを防止するものである。   On the other hand, in the above-described case, as a loosening prevention structure that can prevent loosening of the bolt even when various articles or the like are attached by using only the bolt without using a nut, an adhesive as described in Patent Documents 3 and 4 below. Those using rubber or rubber have been proposed. That is, the above document 3 is for fixing the head of the bolt with an adhesive, and the document 4 is by providing a member with a large coefficient of friction such as rubber along a recess in the generatrix direction formed on the male screw portion of the bolt. The rotation resistance of the bolt is increased, thereby preventing the bolt from loosening.

しかし上記いずれの場合にも長期間使用すると、接着材やゴムが劣化して、接着強度や摩擦力が次第に減退してボルトの緩み止め機能が低下するおそれがあり、耐候性や耐久性等に欠ける嫌いがある。また接着材を用いるものは、一度取付けると、取外しが困難もしくは不能となる等の不具合がある。   However, in any of the above cases, if used for a long period of time, the adhesive or rubber may deteriorate, and the adhesive strength and frictional force may gradually decline, which may reduce the bolt's locking function. I hate lacking. Also, those using adhesives have problems such as once being attached, it becomes difficult or impossible to remove.

特開2000−179525号公報JP 2000-179525 A 特開2004−316715号公報JP 2004-316715 A 特開平6−235413号公報JP-A-6-235413 特開2002−39139号公報JP 2002-39139 A

本発明は上記従来の問題点に鑑みて提案されたもので、例えばナットを用いることなくボルトのみで各種物品等を取付けたり締め付け固定する場合、或いはナットからボルトが突出しない場合でも、それらのボルトを簡単・確実に回り止め係止することのできるボルト緩み止め構造を提供することを目的とする。   The present invention has been proposed in view of the above-described conventional problems. For example, when various articles are attached or tightened with only bolts without using a nut, or even when the bolt does not protrude from the nut, those bolts are used. It is an object of the present invention to provide a bolt loosening prevention structure capable of easily and reliably locking the rotation.

上記の目的を達成するために本発明によるボルト緩み止め構造は、以下の構成としたものである。すなわち、雌ねじ孔にねじ込んだボルトが緩むのを防止するためのボルト緩み止め構造であって、上記ボルトの先端部に該ボルトの雄ねじ部よりも小径の細径部を設け、上記雌ねじ孔に螺合し該雌ねじ孔の内面に圧接する螺旋状の弾性体を上記細径部の周囲に配置すると共に、上記螺旋状弾性体の一端を上記細径部に連結保持させたことを特徴とする。   In order to achieve the above object, the bolt locking structure according to the present invention has the following configuration. That is, a bolt loosening prevention structure for preventing the bolt screwed into the female screw hole from being loosened, wherein a tip portion of the bolt is provided with a small diameter portion smaller than the male screw portion of the bolt, and the female screw hole is screwed. In addition, a spiral elastic body that is in pressure contact with the inner surface of the female screw hole is disposed around the small-diameter portion, and one end of the helical elastic body is connected to and held by the small-diameter portion.

なお、上記螺旋状弾性体の一端を上記細径部に連結保持させる手段としては、例えば上記ボルトの先端部に穴または溝等の凹部を形成し、その凹部に螺旋状弾性体の一端を挿入して連結保持させるようにすればよい。また上記螺旋状弾性体の他端に折曲部を設け、上記雌ねじ孔に螺合したボルトをねじ込み方向と反対方向に回動したとき上記折曲部が当接する当接係合部を上記ボルトに設けるようにしてもよい。   In addition, as means for connecting and holding one end of the spiral elastic body to the small diameter portion, for example, a recess such as a hole or a groove is formed at the tip of the bolt, and one end of the spiral elastic body is inserted into the recess. Then, it may be connected and held. Also, a bent portion is provided at the other end of the spiral elastic body, and the abutting engagement portion with which the bent portion abuts when the bolt screwed into the female screw hole is rotated in the direction opposite to the screwing direction is the bolt. You may make it provide in.

本発明によるボルト緩み止め構造は、上記のように構成したことによって、上記のボルトを雌ねじ孔にねじ込む際に、先ず、その先端部に設けた螺旋状弾性体を細径部と共に上記雌ねじ孔にねじ込み、引き続き、その螺旋状弾性体とともに上記ボルト自体の雄ねじ部を上記雌ねじ孔にねじ込むことで、上記螺旋状弾性体とボルトとを上記雌ねじ孔に連続的に螺合させる。その際、上記螺旋状弾性体の弾性変形により、小さなねじ込みトルクで容易に螺合させることができる。また上記雌ねじ孔にねじ込んだ螺旋状弾性体は雌ねじ孔の内面に圧接し、それによって上記螺旋状弾性体を介してそれと一体のボルトが振動等で回動するのが阻止され、それによって上記ボルトが緩むのを防止することができるものである。   Since the bolt locking structure according to the present invention is configured as described above, when the bolt is screwed into the female screw hole, first, the helical elastic body provided at the tip thereof is inserted into the female screw hole together with the small diameter portion. Next, by screwing the male screw portion of the bolt itself together with the helical elastic body into the female screw hole, the helical elastic body and the bolt are continuously screwed into the female screw hole. At this time, the helical elastic body can be easily screwed with a small screwing torque due to the elastic deformation of the helical elastic body. The helical elastic body screwed into the female screw hole is pressed against the inner surface of the female screw hole, thereby preventing the bolt integrated with the helical elastic body from rotating by vibration or the like, thereby preventing the bolt from rotating. Can be prevented from loosening.

また前記のように螺旋状弾性体の一端を上記細径部に連結保持させる手段として、上記ボルトの先端部に穴または溝等の凹部を形成し、その凹部に螺旋状弾性体の一端を挿入して連結保持させるようにすると、上記螺旋状弾性体を上記ボルトに簡単に連結保持させることができる。   Further, as described above, as a means for connecting and holding one end of the spiral elastic body to the small diameter portion, a concave portion such as a hole or a groove is formed at the tip of the bolt, and one end of the spiral elastic body is inserted into the concave portion. By connecting and holding, the helical elastic body can be easily connected and held to the bolt.

さらに上記螺旋状弾性体の他端に折曲部を設け、上記雌ねじ孔に螺合したボルトをねじ込み方向と反対方向に回動したとき上記折曲部が当接する当接係合部を上記細径部に設けると、上記雌ねじ孔に螺合したボルトを外す必要がある場合に、上記ボルトをねじ込み方向と反対方向に回動したとき、上記の折曲部が上記当接係合部に当接して上記螺旋状弾性体がやや縮径することで上記雌ねじ孔への圧接力が軽減され、それによって上記ボルトをねじ込み方向と反対方向に回動して取外すことが可能となる。   Further, a bent portion is provided at the other end of the spiral elastic body, and the abutting engagement portion with which the bent portion abuts when the bolt screwed into the female screw hole is rotated in the direction opposite to the screwing direction is provided in the thin elastic member. When it is necessary to remove the bolt screwed into the female screw hole, when the bolt is rotated in the direction opposite to the screwing direction, the bent portion contacts the abutting engagement portion. When the diameter of the spiral elastic body is reduced, the pressure contact force to the female screw hole is reduced, whereby the bolt can be rotated in the direction opposite to the screwing direction and removed.

以下、本発明によるボルト緩み止め構造を図に示す実施形態に基づいて具体的に説明する。図1(a)は本発明によるボルト緩み止め構造を備えたボルトの正面図、(b)はその側面図、図2(a)は上記のボルト緩み止め構造を構成する螺旋状弾性体をボルトから外した状態の分解斜視図、同図(b)は上記螺旋状弾性体をボルトに組付けた状態の斜視図である。   Hereinafter, a bolt locking structure according to the present invention will be specifically described based on an embodiment shown in the drawings. FIG. 1A is a front view of a bolt having a bolt loosening prevention structure according to the present invention, FIG. 1B is a side view thereof, and FIG. 2A is a spiral elastic body constituting the bolt loosening prevention structure. FIG. 4B is an exploded perspective view showing a state where the spiral elastic body is assembled to a bolt.

本実施形態のボルト緩み止め構造は、ボルト頭部1aと軸部1bとからなるボルト(特に図の場合は六角ボルト)1における上記軸部1bに形成した雄ねじ部11の先端部に、その雄ねじ部11よりも小径の細径部12を形成し、その細径部12の周囲に螺旋状弾性体2をルーズに嵌合配置したものである。   The bolt loosening prevention structure of the present embodiment has a male screw at the tip of the male screw portion 11 formed on the shaft portion 1b in a bolt (particularly a hexagon bolt in the figure) 1 comprising a bolt head portion 1a and a shaft portion 1b. A narrow-diameter portion 12 having a smaller diameter than the portion 11 is formed, and the helical elastic body 2 is loosely fitted around the thin-diameter portion 12.

その螺旋状弾性体2として、本実施形態においては既存のコイルばねを用いたもので、そのコイルばねよりなる螺旋状弾性体2は、上記ボルト1をねじ込む不図示の雌ねじ孔に螺合するように上記ボルト1の雄ねじ部11とほぼ同一ピッチの螺旋状に形成され、かつ上記雌ねじ孔に螺合させたとき該雌ねじ孔の内面に適度な圧力で圧接するように該内面よりもやや大径に形成されている。   In this embodiment, an existing coil spring is used as the spiral elastic body 2, and the spiral elastic body 2 made of the coil spring is screwed into a female screw hole (not shown) into which the bolt 1 is screwed. Are formed in a spiral shape having substantially the same pitch as the male threaded portion 11 of the bolt 1 and slightly larger in diameter than the inner surface so as to come into pressure contact with the inner surface of the female threaded hole with an appropriate pressure. Is formed.

上記螺旋状弾性体2は、その一端側を上記細径部12に連結保持させたもので、図の場合は上記細径部12の前側(ボルト先端側、以下本書では便宜上ボルト先端側を前側、ボルト頭部側を後側という)の端面に凹溝条よりなる凹部12aを形成し、その凹部12aに上記螺旋状弾性体2の一端側(図の場合は前端側)に設けた折曲部2aを挿入して係合保持させた構成である。上記凹部12aおよび折曲部2aは、図の場合はそれぞれ上記細径部12および螺旋状弾性体2のほぼ直径方向に設けたものであるが、その方向は適宜である。   The spiral elastic body 2 has one end connected to and held by the small-diameter portion 12, and in the case of the figure, the front side of the thin-diameter portion 12 (the bolt front side, hereinafter, the bolt front side is referred to as the front side for convenience in this document). A concave portion 12a made of a concave groove is formed on the end face of the bolt head side (rear side), and the bent portion 12a is bent on one end side (the front end side in the case of the figure) of the spiral elastic body 2. The portion 2a is inserted and held in engagement. In the case of the figure, the concave portion 12a and the bent portion 2a are provided substantially in the diameter direction of the small-diameter portion 12 and the spiral elastic body 2, respectively, but the directions are appropriate.

また上記螺旋状弾性体2の他端にも折曲部2bを設け、上記雌ねじ孔にねじ込んだボルトをねじ込み方向と反対方向に回動したとき上記折曲部2bが当接する当接係合部を上記ボルト1に設けたもので、図の場合は上記ボルト1の細径部12に、その接線方向と平行な面で切除した面取部12bを形成して、その面取部12bによる上記細径部12の欠円部内に上記折曲部2bを設けると共に、不図示の雌ねじ孔にねじ込んだボルト1を、そのねじ込み方向と反対方向に回動したとき上記折曲部2bが上記面取部12bに当接するようにしたものである。   Also, a bent portion 2b is provided at the other end of the spiral elastic body 2, and a contact engaging portion with which the bent portion 2b comes into contact when a bolt screwed into the female screw hole is rotated in a direction opposite to the screwing direction. In the case of the figure, a chamfered portion 12b is formed on the narrow diameter portion 12 of the bolt 1 by cutting it in a plane parallel to the tangential direction, and the chamfered portion 12b The bent portion 2b is provided in the notch circle portion of the small diameter portion 12, and the bent portion 2b is chamfered when the bolt 1 screwed into a female screw hole (not shown) is rotated in a direction opposite to the screwing direction. It is made to contact the part 12b.

上記の構成において、例えば図3に示すように各種物品A等を被取付部材Bに上記ボルト1で取付けるに当たっては、予め、そのボルト1の細径部12の外周に上記螺旋状弾性体2を嵌合配置すると共に、上記細径部12の先端部に形成した凹部12aに上記螺旋状弾性体2の一端折曲部2aを係合させる。   In the above configuration, for example, as shown in FIG. 3, when attaching various articles A or the like to the attached member B with the bolt 1, the spiral elastic body 2 is previously placed on the outer periphery of the small diameter portion 12 of the bolt 1. The one-end bent portion 2a of the spiral elastic body 2 is engaged with the concave portion 12a formed at the distal end portion of the small-diameter portion 12 while being fitted and arranged.

その状態で、上記被取付部材Bに形成した雌ねじ孔hに、上記螺旋状弾性体2とボルト1とを順にねじ込むもので、先ずボルト1の先端部に設けた螺旋状弾性体2をねじ込むに当たっては、その螺旋状弾性体2の前側の端部を上記雌ねじ孔hの開口側の端部に係合させながらボルト1をねじ込み方向に回動させればよい。その際、上記螺旋状弾性体2は上記ボルト1およびそれが螺合する上記雌ねじ孔hとほぼ同一ピッチで形成されているので、上記雌ねじ孔hにボルト1をねじ込む場合と全く同様の要領で上記螺旋状弾性体2を上記雌ねじ孔hにねじ込むことができる。   In this state, the helical elastic body 2 and the bolt 1 are screwed in order into the female screw hole h formed in the mounted member B. First, when the helical elastic body 2 provided at the tip of the bolt 1 is screwed. The bolt 1 may be rotated in the screwing direction while the front end portion of the spiral elastic body 2 is engaged with the opening end portion of the female screw hole h. At this time, since the helical elastic body 2 is formed at substantially the same pitch as the bolt 1 and the female screw hole h into which the bolt 1 is screwed, the procedure is exactly the same as when the bolt 1 is screwed into the female screw hole h. The spiral elastic body 2 can be screwed into the female screw hole h.

なお、上記螺旋状弾性体2は、それが接触する雌ねじ孔hの内面の径よりもやや大きく形成されているので、上記内面との接触摩擦力で回動抵抗が生じるが、上記螺旋状弾性体2は文字通り螺旋状の弾性体であるから、上記のねじ込み時には内方に撓んで上記の接触摩擦力および回動抵抗が軽減され、比較的容易にねじ込むことができる。特に上記実施形態のようにボルト1の先端部に設けた凹部12aに、螺旋状弾性体2の前端折曲部2aを係合させて回動させるようにすると、上記ボルト1が図4(a)の矢印の方向(同図はボルト1を先端側から見たもので、該ボルト1のねじ込み方向は図のように半時計方向)に回動したとき、螺旋状弾性体2の後側(図3で右側)を前側(図3で左側)が先導して引っ張る形で螺旋状弾性体2全体が巻き締められる傾向となる。そのため、上記螺旋状弾性体2は図4(a)の鎖線示の自由状態よりも同図実線示のようにやや縮径した状態となるので、更に容易にねじ込むことが可能となる。   The spiral elastic body 2 is formed to be slightly larger than the diameter of the inner surface of the female screw hole h with which the spiral elastic body 2 comes into contact. Since the body 2 is literally a spiral elastic body, it can be screwed in relatively easily by bending inwardly and reducing the contact frictional force and rotational resistance. In particular, when the front end bent portion 2a of the spiral elastic body 2 is engaged with the concave portion 12a provided at the tip portion of the bolt 1 as in the above embodiment and rotated, the bolt 1 is shown in FIG. ) (When the bolt 1 is viewed from the tip side, and the screw 1 is screwed in the counterclockwise direction as shown in the figure), the rear side of the spiral elastic body 2 ( The entire spiral elastic body 2 tends to be wound with the front side (left side in FIG. 3) leading and pulling the front side (right side in FIG. 3). For this reason, the spiral elastic body 2 is slightly reduced in diameter as shown by the solid line in FIG. 4A, and can be screwed more easily.

次に、上記のようにして雌ねじ孔h内に螺旋状弾性体2をねじ込んだところで引き続き上記ボルト1をねじ込み方向に回動すると、上記螺旋状弾性体2に続いてボルト1の先端部が上記雌ねじ孔h内にねじ込まれていく。その際、螺旋状弾性体2とボルト1の雄ねじのピッチを前記のようにほぼ同一に形成すだけでなく、それらの配置状態におけるピッチも前記図1および図3のように揃えるようにすると、上記雌ねじ孔hへの螺旋状弾性体2とボルト1のねじ込みを連続的にスムースに行うことができる。ただし、螺旋状弾性体2は多少弾性変形可能であり、また上記凹部12aと前端折曲部2aとの係合部には多少のずれが許容されるので、上記の配置状態や螺旋状弾性体2とボルト1の雄ねじのピッチに多少のずれがあっても支障はない。   Next, when the spiral elastic body 2 is screwed into the female screw hole h as described above and the bolt 1 is continuously rotated in the screwing direction, the distal end portion of the bolt 1 follows the spiral elastic body 2. It is screwed into the female screw hole h. At that time, not only the pitch of the helical elastic body 2 and the external thread of the bolt 1 is formed substantially the same as described above, but also the pitch in the arrangement state thereof is aligned as shown in FIG. 1 and FIG. The helical elastic body 2 and the bolt 1 can be screwed into the female screw hole h continuously and smoothly. However, the helical elastic body 2 can be somewhat elastically deformed, and a slight shift is allowed in the engaging portion between the concave portion 12a and the front end bent portion 2a. There is no problem even if there is a slight deviation in the pitch of the male thread of 2 and bolt 1.

そして上記のようにして螺旋状弾性体2とともにボルト1を雌ねじ孔hに所定の深さまでねじ込むことによって、前記の各種物品A等を被取付部材Bに取付けたり、上記ボルト1の頭部1aと上記被取付部材Bとの間に各種物品A等を挟んで締付け固定するもので、その締付け固定した状態において上記螺旋状弾性体2は前記図4(a)の状態よりも同図(b)のように拡径して不図示の雌ねじ孔hの内面に圧接し、それによって上記螺旋状弾性体2が雌ねじ孔hに対して回り止め係止されると共に、その螺旋状弾性体2を介して上記ボルト1の回動が阻止され、それによって該ボルト1の緩みが防止されるものである。   Then, by screwing the bolt 1 together with the spiral elastic body 2 into the female screw hole h to a predetermined depth as described above, the various articles A or the like are attached to the attachment member B, or the head 1a of the bolt 1 and Various articles A and the like are clamped and fixed between the mounted member B and the spiral elastic body 2 in the tightened and fixed state is the same as that of FIG. 4 (a) (b). The spiral elastic body 2 is locked against rotation with respect to the female screw hole h, and is pressed against the inner surface of the female screw hole h (not shown). Thus, the rotation of the bolt 1 is prevented, thereby preventing the bolt 1 from loosening.

なお、上記のようにして螺旋状弾性体2によりボルト1の緩みを防止した状態で、そのボルト1をねじ込み方向と反対方向に回動すると、通常は上記螺旋状弾性体2が拡径傾向となって雌ねじ孔hとの接触摩擦力が増大するため上記ボルト1の取外しは殆ど不可能であるが、上記実施形態においては前記のように螺旋状弾性体2の他端側にも折曲部2bを設け、その折曲部2bが当接する当接係合部として上記細径部12に面取部12bを設けたことによって上記ボルト1の取外しが可能である。   When the bolt 1 is rotated in the direction opposite to the screwing direction in the state in which the bolt 1 is prevented from being loosened by the spiral elastic body 2 as described above, the spiral elastic body 2 usually tends to expand in diameter. Since the contact frictional force with the female screw hole h is increased, the bolt 1 can hardly be removed. However, in the above embodiment, the bent portion is also formed on the other end side of the spiral elastic body 2 as described above. The bolt 1 can be removed by providing the chamfered portion 12b on the small-diameter portion 12 as a contact engaging portion with which the bent portion 2b abuts.

すなわち、図5(a)の矢印のようにボルト1をねじ込み方向と反対方向(図5はボルトを先端側から見ているので右方向)に回動しようとすると、螺旋状弾性体2が雌ねじ孔hの内面に圧接しているので手動では容易に回動することはできないが、工具等で上記ボルト1を強く回動すると、螺旋状弾性体2の雌ねじ孔hとの当接部は殆ど回動することなく、ボルト1が上記螺旋状弾性体2の一端折曲部2aを図5(b)のようにく字状に屈曲しながら徐々に回動する。そして上記ボルト1が所定角度回動したところでボルト細径部12の面取部12bが図5(b)のように螺旋状弾性体2の他端折曲部2bに当接する。   That is, when the bolt 1 is rotated in the direction opposite to the screwing direction as shown by the arrow in FIG. 5A (in FIG. 5, the bolt is viewed from the tip side, the right direction), the spiral elastic body 2 is turned into the female screw. Since it is in pressure contact with the inner surface of the hole h, it cannot be easily rotated manually. However, when the bolt 1 is strongly rotated with a tool or the like, the contact portion of the spiral elastic body 2 with the female screw hole h is almost non-existent. Without turning, the bolt 1 gradually turns while bending the one-end bent portion 2a of the spiral elastic body 2 into a square shape as shown in FIG. 5B. When the bolt 1 is rotated by a predetermined angle, the chamfered portion 12b of the bolt small diameter portion 12 comes into contact with the other end bent portion 2b of the spiral elastic body 2 as shown in FIG.

その状態で、上記ボルト1を引き続き同方向に回動すると、上記の一端折曲部2aが更に屈曲しながら、ボルト1の面取部12bを介して螺旋状弾性体2の他端折曲部2b側が同方向に回動する。その他端折曲部2bは前記図3においては螺旋状弾性体2の右端側にあって、その他端折曲部2b側がボルト1のねじ込み方向と反対方向に回動すると、上記螺旋状弾性体2は徐々に巻き締められる傾向となって縮径し、雌ねじ孔hとの接触摩擦力が軽減されて、その螺旋状弾性体2とともにボルト1をねじ込み方向と反対方向に回動して取外すことができるものである。   In this state, when the bolt 1 is continuously rotated in the same direction, the other end bent portion of the spiral elastic body 2 is bent through the chamfered portion 12b of the bolt 1 while the one end bent portion 2a is further bent. The 2b side rotates in the same direction. The other end bent portion 2b is on the right end side of the spiral elastic body 2 in FIG. 3, and when the other end bent portion 2b is rotated in the direction opposite to the screwing direction of the bolt 1, the spiral elastic body 2 is provided. Can be gradually tightened to reduce the diameter, the contact frictional force with the female screw hole h can be reduced, and the bolt 1 together with the spiral elastic body 2 can be rotated and removed in the direction opposite to the screwing direction. It can be done.

なお、上記実施形態は、螺旋状弾性体2として既存のコイルばねを用いたが、ボルト1を螺合する雌ねじ孔の径やピッチ等に応じて適宜調製したばね棒材等よりなる螺旋状の弾性体を用いてもよい。また図の場合は螺旋状弾性体2の一端折曲部2aを、ボルト1の細径部11bの先端に形成した凹溝条よりなる凹部11cに回り止め係合させるようにしたが、その凹部11cとして上記のような凹溝条の代わりに細径部11bの前端面または周面もしくは前記面取部に所望の方向の孔等を形成して、その孔等に上記の一端折曲部2aを係合させるようにしてもよい。さらに上記折曲部2aは上記のような凹部11cに単に挿入係合させるだけでなく、圧入嵌合してもよく、また必要に応じて上記螺旋状弾性体2をボルト1に対して接着材その他適宜の手段で一体的に固着するようにしてもよい。   In the above-described embodiment, an existing coil spring is used as the spiral elastic body 2, but a spiral rod made of a spring bar or the like appropriately prepared according to the diameter, pitch, etc. of the female screw hole into which the bolt 1 is screwed. An elastic body may be used. Further, in the case of the figure, the one-end bent portion 2a of the spiral elastic body 2 is rotated and engaged with the concave portion 11c formed of the concave groove formed at the tip of the small diameter portion 11b of the bolt 1. 11c is formed with a hole or the like in a desired direction on the front end surface or the peripheral surface of the narrow-diameter portion 11b or the chamfered portion instead of the concave groove as described above, and the one-end bent portion 2a is formed in the hole or the like. May be engaged. Furthermore, the bent portion 2a is not only simply inserted and engaged with the concave portion 11c as described above, but may be press-fitted, and the spiral elastic body 2 may be bonded to the bolt 1 as necessary. Alternatively, it may be fixed integrally by any appropriate means.

また上記実施形態は、雌ねじ孔hにねじ込んだボルト1をねじ込み方向と反対方向に回動したとき螺旋状弾性体2の他端折曲部2bが当接する当接係合部としてボルト1の細径部12に面取部12bを設けたが、上記細径部12の周囲に上記折曲部2bを含めて螺旋状弾性体2を挿入嵌合することが可能で、かつ上記ボルト1をねじ込み方向と反対方向に回動したとき螺旋状弾性体2の他端折曲部2bに当接して該折曲部2b側の端部を回動できるものであれば上記当接係合部の構成は適宜であり、また上記細径部12に限らず例えばボルト1の雄ねじ部の前端面その他ボルトの任意の位置に設けることができる。   Further, in the above-described embodiment, the bolt 1 is used as a contact engaging portion with which the other end bent portion 2b of the spiral elastic body 2 contacts when the bolt 1 screwed into the female screw hole h is rotated in the direction opposite to the screwing direction. Although the chamfered portion 12b is provided in the diameter portion 12, the helical elastic body 2 including the bent portion 2b can be inserted and fitted around the narrow diameter portion 12, and the bolt 1 is screwed. The structure of the abutting engagement portion as long as it can come into contact with the other end bent portion 2b of the spiral elastic body 2 and turn the end on the bent portion 2b side when rotated in the opposite direction. Is not limited to the small-diameter portion 12 and can be provided, for example, at the front end surface of the male screw portion of the bolt 1 or any other position of the bolt.

さらに上記実施形態は、被取付部材Bに横方向に形成した雌ねじ孔hに各種物品A等を取付けるようにしたが、図6のように被取付部材Bに縦方向に形成した雌ねじ孔hに各種物品A等を取付けるためのボルト1等にも適用可能であり、また図7のようにコンクリート等よりなる被取付部材Bに形成した縦または横方向の孔H内に有底筒状または筒状のボルトbを挿入して樹脂R等で固着し、そのボルトbに形成した雌ねじ孔hに各種物品A等を取付けるためのボルト1などにも適用できる。図7おいて、Wはワッシャである。   Further, in the above embodiment, various articles A and the like are attached to the female screw holes h formed in the lateral direction on the member to be attached B, but the female screw holes h formed in the vertical direction on the member to be attached B as shown in FIG. It can also be applied to bolts 1 etc. for attaching various articles A etc., and has a bottomed cylindrical shape or cylinder in a vertical or horizontal hole H formed in a member to be attached B made of concrete or the like as shown in FIG. It can also be applied to a bolt 1 or the like for inserting various articles A and the like into a female screw hole h formed in the bolt b by inserting a shaped bolt b and fixing it with a resin R or the like. In FIG. 7, W is a washer.

なお、上記図6および図7のようにボルト1に装着した螺旋状弾性体2を下側にして雌ねじ孔hにねじ込むものにあっては、そのねじ込む際に、上記螺旋状弾性体2の一端2aをボルト細径部12の凹部12aに単に係合させただけでは落下するおそれがある場合には、接着材や接着テープ等で固定するか、或いは前述のように、その他適宜の手段で一体的に固着するようにすればよい。また本発明は上記図6および図7のような構成に限らず各種の用途や構成のボルトにも適用可能であり、例えばナットを用いるもの、特に筒状の長ナットにボルトをねじ込み、そのボルトの先端がナットから突出しないような場合にも適用可能である。   6 and 7, when the helical elastic body 2 attached to the bolt 1 is screwed into the female screw hole h with the helical elastic body 2 on the lower side, one end of the helical elastic body 2 is inserted when the screw is screwed. If there is a risk of falling if the 2a is simply engaged with the recess 12a of the bolt small diameter portion 12, it may be fixed with an adhesive or an adhesive tape, or integrated by other appropriate means as described above. It is sufficient to fix them. The present invention is not limited to the configurations shown in FIGS. 6 and 7 and can be applied to bolts of various uses and configurations. For example, those using nuts, in particular, screwed bolts into cylindrical long nuts, and the bolts. The present invention is also applicable to the case where the tip of the nut does not protrude from the nut.

以上のように本発明によるボルト緩み止め構造は上記の構成であるから、被取付部材に形成した雌ねじ孔にボルトをねじ込む場合、或いはナットにボルトをねじ込む場合であって、そのボルトがナットから突出しない場合であっても上記ボルトの緩みを簡単・確実に防止することが可能となるもので、各種の被取付部材に各種物品等を取付けたり締付け固定する場合などに有効に適用することができるものである。   As described above, the bolt loosening prevention structure according to the present invention has the above-described configuration. Therefore, when the bolt is screwed into the female screw hole formed in the attached member or when the bolt is screwed into the nut, the bolt protrudes from the nut. Even if it is not, it will be possible to easily and reliably prevent the bolt from loosening, and can be effectively applied to various articles to be attached or fastened to various attachment members. Is.

(a)は本発明によるボルト緩み止め構造を備えたボルトの正面図、(b)はその側面図。(A) is a front view of the volt | bolt provided with the bolt loosening prevention structure by this invention, (b) is the side view. (a)は上記のボルト緩み止め構造を構成する螺旋状弾性体をボルトから外した状態の分解斜視図、(b)は上記螺旋状弾性体をボルトに組付けた状態の同上図。(A) is a disassembled perspective view of the state which removed the helical elastic body which comprises said bolt loosening prevention structure from the volt | bolt, (b) is the same figure of the state which assembled | attached the said helical elastic body to the volt | bolt. 本発明によるボルト緩み止め構造をもちいて被取付部材に各種物品等を取付けた状態の側面図。The side view of the state which attached various articles etc. to the to-be-attached member using the volt | bolt loosening prevention structure by this invention. (a)(b)はボルトをねじ込む状態の動作説明図。(A) (b) is operation | movement explanatory drawing of the state which screwed in a volt | bolt. (a)〜(c)はボルトを外す際の動作説明図。(A)-(c) is operation | movement explanatory drawing at the time of removing a volt | bolt. 縦方向の雌ねじ孔に各種物品等を取付ける場合の説明図。Explanatory drawing in the case of attaching various articles | goods etc. to the internal thread hole of a vertical direction. 雌ねじ孔を有する筒状のボルトを介して各種物品を取付ける場合の説明図。Explanatory drawing in the case of attaching various articles | goods via the cylindrical volt | bolt which has a female screw hole.

符号の説明Explanation of symbols

1 ボルト
1a 頭部
1b 軸部
11 雄ねじ部
12 細径部
12a 凹部
12b 面取部(当接係合部)
2 螺旋状弾性体
2a 一端折曲部
2b 他端折曲部
A 各種物品
B 被取付部材
h 雌ねじ孔
DESCRIPTION OF SYMBOLS 1 Bolt 1a Head 1b Shaft part 11 Male thread part 12 Narrow diameter part 12a Recessed part 12b Chamfering part (contact engagement part)
2 Helical elastic body 2a One end bent portion 2b Other end bent portion A Various articles B Mounted member h Female screw hole

Claims (3)

雌ねじ孔にねじ込んだボルトが緩むのを防止するためのボルト緩み止め構造であって、上記ボルトの先端部に該ボルトの雄ねじ部よりも小径の細径部を設け、上記雌ねじ孔に螺合し該雌ねじ孔の内面に圧接する螺旋状の弾性体を上記細径部の周囲に配置すると共に、上記螺旋状弾性体の一端を上記細径部に連結保持させたことを特徴とするボルト緩み止め構造。   A bolt loosening prevention structure for preventing the bolt screwed into the female screw hole from being loosened, and a small diameter portion smaller in diameter than the male screw portion of the bolt is provided at the tip of the bolt and screwed into the female screw hole. A helical elastic body that is in pressure contact with the inner surface of the female screw hole is disposed around the small-diameter portion, and one end of the helical elastic body is connected to and held by the small-diameter portion. Construction. 上記細径部の先端部に穴または溝等の凹部を形成し、その凹部に上記螺旋状弾性体の一端を挿入して連結保持させてなる請求項1に記載のボルト緩み止め構造。   The bolt loosening prevention structure according to claim 1, wherein a concave portion such as a hole or a groove is formed at a distal end portion of the small diameter portion, and one end of the spiral elastic body is inserted into the concave portion to be connected and held. 上記螺旋状弾性体の他端に折曲部を設け、上記雌ねじ孔にねじ込んだボルトをねじ込み方向と反対方向に回動したとき上記折曲部が当接する当接係合部を上記ボルトに設けてなる請求項1または2に記載のボルト緩み止め構造。   A bent portion is provided at the other end of the spiral elastic body, and a contact engaging portion is provided on the bolt, which abuts the bent portion when the bolt screwed into the female screw hole is rotated in a direction opposite to the screwing direction. The bolt loosening prevention structure according to claim 1 or 2.
JP2007146394A 2007-06-01 2007-06-01 Bolt locking structure Active JP4698636B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007146394A JP4698636B2 (en) 2007-06-01 2007-06-01 Bolt locking structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007146394A JP4698636B2 (en) 2007-06-01 2007-06-01 Bolt locking structure

Publications (2)

Publication Number Publication Date
JP2008298218A true JP2008298218A (en) 2008-12-11
JP4698636B2 JP4698636B2 (en) 2011-06-08

Family

ID=40171919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007146394A Active JP4698636B2 (en) 2007-06-01 2007-06-01 Bolt locking structure

Country Status (1)

Country Link
JP (1) JP4698636B2 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010058688A1 (en) 2008-11-21 2010-05-27 本田技研工業株式会社 Capacitor cooling device
KR101452280B1 (en) 2011-02-09 2014-10-21 노르마 저머니 게엠베하 Tension clamp
JP2014202314A (en) * 2013-04-08 2014-10-27 松本重工業株式会社 Locking bolt, fastener using the same and manufacturing method of locking bolt
KR101560737B1 (en) 2014-07-23 2015-10-15 황재필 Locking bolt
JP2017148041A (en) * 2016-02-24 2017-08-31 株式会社ドヨエンジニアリング Fishing reel with locking type reinforcement handle
KR101873190B1 (en) * 2018-05-14 2018-07-02 박홍욱 Construction Method Using Locking and Tapping Bolt
KR101928696B1 (en) * 2018-03-15 2018-12-12 박홍욱 Locking bolt
WO2019101760A1 (en) * 2017-11-23 2019-05-31 Böllhoff Verbindungstechnik GmbH Wire thread insert
KR20210090366A (en) * 2020-01-10 2021-07-20 주식회사 케이에스엘엔씨 A bolt having an anti-loosening spring
CN113669350A (en) * 2021-07-29 2021-11-19 河北光兴半导体技术有限公司 Anti-loosening bolt structure
CN115031591A (en) * 2022-05-27 2022-09-09 火箭派(太仓)航天科技有限公司 Gas cylinder installation assembly and method for rocket

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194117A (en) * 1983-04-20 1984-11-02 日本航空電子工業株式会社 Self-locking bolt
JPH01216112A (en) * 1988-02-24 1989-08-30 Arai Tekkosho:Kk Setscrew, nut and screwing device
JPH0311117U (en) * 1989-06-16 1991-02-04
JPH0722117U (en) * 1993-09-27 1995-04-21 正行 竹内 Bolt structure
JPH11125231A (en) * 1997-10-21 1999-05-11 Nishi Fastener:Kk Locking device for screw-fastened body

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194117A (en) * 1983-04-20 1984-11-02 日本航空電子工業株式会社 Self-locking bolt
JPH01216112A (en) * 1988-02-24 1989-08-30 Arai Tekkosho:Kk Setscrew, nut and screwing device
JPH0311117U (en) * 1989-06-16 1991-02-04
JPH0722117U (en) * 1993-09-27 1995-04-21 正行 竹内 Bolt structure
JPH11125231A (en) * 1997-10-21 1999-05-11 Nishi Fastener:Kk Locking device for screw-fastened body

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010058688A1 (en) 2008-11-21 2010-05-27 本田技研工業株式会社 Capacitor cooling device
KR101452280B1 (en) 2011-02-09 2014-10-21 노르마 저머니 게엠베하 Tension clamp
JP2014202314A (en) * 2013-04-08 2014-10-27 松本重工業株式会社 Locking bolt, fastener using the same and manufacturing method of locking bolt
US10060465B2 (en) 2014-07-23 2018-08-28 Jae Pil Hwang Anti-loosening bolt
CN106662139A (en) * 2014-07-23 2017-05-10 黄在必 Anti-loosening bolt
WO2016013863A1 (en) * 2014-07-23 2016-01-28 황재필 Anti-loosening bolt
KR101560737B1 (en) 2014-07-23 2015-10-15 황재필 Locking bolt
JP2017148041A (en) * 2016-02-24 2017-08-31 株式会社ドヨエンジニアリング Fishing reel with locking type reinforcement handle
CN111373163B (en) * 2017-11-23 2022-04-22 伯尔霍夫连接技术有限公司 Steel wire thread insert
WO2019101760A1 (en) * 2017-11-23 2019-05-31 Böllhoff Verbindungstechnik GmbH Wire thread insert
CN111373163A (en) * 2017-11-23 2020-07-03 伯尔霍夫连接技术有限公司 Steel wire thread insert
US11821454B2 (en) 2017-11-23 2023-11-21 Böllhoff Verbindungstechnik GmbH Wire thread insert
KR101928696B1 (en) * 2018-03-15 2018-12-12 박홍욱 Locking bolt
KR101873190B1 (en) * 2018-05-14 2018-07-02 박홍욱 Construction Method Using Locking and Tapping Bolt
KR102301404B1 (en) * 2020-01-10 2021-09-14 주식회사 케이에스엘엔씨 A bolt having an anti-loosening spring
KR20210090366A (en) * 2020-01-10 2021-07-20 주식회사 케이에스엘엔씨 A bolt having an anti-loosening spring
CN113669350A (en) * 2021-07-29 2021-11-19 河北光兴半导体技术有限公司 Anti-loosening bolt structure
CN115031591A (en) * 2022-05-27 2022-09-09 火箭派(太仓)航天科技有限公司 Gas cylinder installation assembly and method for rocket

Also Published As

Publication number Publication date
JP4698636B2 (en) 2011-06-08

Similar Documents

Publication Publication Date Title
JP4698636B2 (en) Bolt locking structure
JP2008223937A (en) Fastener
JP2010078139A (en) Locknut
JP5388290B2 (en) Fastening member
JP4939487B2 (en) Screw locking mechanism and shackle equipped with the mechanism
JP2014105797A (en) Reverse rotation preventive structure of screw body
JP2001059514A (en) Looseness preventing structure for bolt and nut
JP2004204867A (en) Lock device for screw
JP2012137174A (en) Loosening prevention bolt
JP2007064283A (en) Female screw body
JP2010019393A (en) Whirl stop device for tightening bolt
JP5340001B2 (en) Locking structure
JP6039515B2 (en) Screw body reverse rotation prevention structure
JP2009299854A (en) Nut for theft prevention
JP2009299704A (en) Nut looseness preventive clip
JP2007085383A (en) Screw locking structure
JP2004100952A (en) Locking tool for bolt and nut, and fastener for bolt
JP3037654U (en) Loosening prevention bolt
WO2016063431A1 (en) Fastener, fastening structure for fastener, hinge structure, and male fastener
JP2002039142A (en) Locking washer
KR20040078783A (en) Locking apparatus having an anti-unlockng structure
JP6231795B2 (en) Bolt / nut locking structure
JP6215601B2 (en) Bolt / nut locking structure
JP2002192433A (en) Pull stud mounting device
WO2017213519A1 (en) Bolt with safety device for a bolt head and a method for releasing the bolt

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100524

TRDD Decision of grant or rejection written
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110127

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110202

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110301

R150 Certificate of patent or registration of utility model

Ref document number: 4698636

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313117

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250