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JP3571118B2 - Band type fastening member - Google Patents
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JP3571118B2 - Band type fastening member - Google Patents

Band type fastening member Download PDF

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Publication number
JP3571118B2
JP3571118B2 JP19025595A JP19025595A JP3571118B2 JP 3571118 B2 JP3571118 B2 JP 3571118B2 JP 19025595 A JP19025595 A JP 19025595A JP 19025595 A JP19025595 A JP 19025595A JP 3571118 B2 JP3571118 B2 JP 3571118B2
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JP
Japan
Prior art keywords
band
main body
engagement
fastening member
engaging
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JP19025595A
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Japanese (ja)
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JPH0942229A (en
Inventor
功 佐合
裕司 吉沢
完児 鈴木
三樹夫 丹羽
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Toyoda Koki KK
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Toyoda Koki KK
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Description

【0001】
【発明の属する技術分野】
本発明は、被締結部の外周に装着して、被締結部を締付けるバンド式締結部材に関するものである。
【0002】
【従来の技術】
従来、被締結部の外周に挿着して、被締結部を締付けるバンド式締結部材には、例えば、特公平1−22481号公報に示すものがある。
このものは、図12に示すように一枚の金属板を加工して帯状に形成され、略リング状に湾曲されたバンド本体1と、補助帯板2とから構成されている。
【0003】
前記バンド本体1の一端には係合凸部3が形成され、一方、他端には係合凸部3に係合する係合穴4が形成されており、これら係合凸部3と係合穴4とが係合されることによって、バンド本体1は無端状に構成される。
また、バンド本体1には、かしめ部5が形成されており、このかしめ部5を図略のかしめ工具でかしめることにより、図略の被締結部に対して締付力を付与するようになっている。
【0004】
前記補助帯板2はかしめ部5をかしめる際にかしめ部5に対応するバンド本体1の内周に挿入することによって、かしめ部5の内周への被締結部の噛み込みを防止するものである。
【0005】
【発明が解決しようとする課題】
従来では、バンド本体1の係合凸部3と係合穴4とを係合させるためには、係合凸部3の上から係合穴4を嵌め込むようにしなければならないため、両手を使う必要があり、作業性が悪いという問題があった。
また、係合凸部3に対して係合穴4を嵌め込んだだけでは、その状態を維持しようとする力が作用しないため、手を離すと外れてしまう恐れがある。
【0006】
従って、かしめ部5をかしめる時においても、係合凸部3と係合穴4との係合状態を支える必要があり、両手を使わなければならず、作業性が悪いという問題があった。
【0007】
【課題を解決するための手段】
本発明のバンド式締結部材は、上述した問題を解決するためになされたもので、請求項1に記載の発明では、帯状で両端を自由端としリング状に湾曲されたバンド本体と、帯状であって略円弧状に湾曲し前記バンド本体の一端から所定距離隔てた位置に一端が固着される帯板とを備え、前記バンド本体の一端に前記帯板の外周面に重合する重合部を設け、この重合部を前記帯板に対して所定の弾性力でもって当接するようにし、前記バンド本体の他端に係合部を設けるとともに、前記重合部に前記係合部と係合する係合穴を設け、前記係合部と前記係合穴とが係合した状態で前記バンド本体の他端を前記重合部の内周と前記帯板の外周とで挟持するように構成し、前記係合部と前記重合部との係合開始付近に前記バンド本体の他端の移動を案内保持する案内部を前記帯板に設けたバンド式締結部材において、前記バンド本体に所定の弾性力をもって外方に向かって湾曲した公差吸収部を設け、締付けが完了した状態で前記公差吸収部全体を両側側方から挟みこむ位置に位置する保護カバーを前記帯体の外周面にほぼ直角に屈曲して形成したことを特徴とするものである。
これによれば、締付作業性が向上することはもちろんのこと、被締結部材に対する締付が完了した状態で、保護カバーが公差吸収部を保護する位置に位置されるので、公差吸収部を飛び石などの外部変形要因から保護することができる。また、締付前の状態において、バンド本体の形状を安定させ、案内部にバンド本体の他端が案内されるまでの補助的な案内を行うため、さらに作業性が良い。
【0012】
【発明の実施の形態】
以下、本発明の実施の形態について図1乃至図11に基づいて説明する。
本実施例のバンド式締結部材は、例えば、ラックアンドピニオン型パワーステアリング装置において筒状のブーツBをギヤハウジングに取付けるためのものである。この締結部材は、図1,図2に示すように、帯状で両端を自由端としたバンド本体10と、帯状であって略円弧状に湾曲し前記バンド本体10の取付係合部16に一端に設けられた取付部21にて固着される帯板20とから構成されている。
【0013】
前記バンド本体10は、図5,図6に示すように、一枚の金属板を加工して帯状に形成されており、略リング状に湾曲されている。
このバンド本体10の一端には、外方に向けて所定角度屈曲されバンド締付け時にバンド本体10の他端と係合する係合屈曲部11が形成されている。
この係合屈曲部11から所定距離隔てた位置に周方向に伸びバンド本体10の表裏に貫通する長方形状の係合穴12が形成され、この係合穴12からさらに所定距離隔てた位置に内方に向けて湾曲する湾曲部13が形成されている。
【0014】
ここで、前記係合穴12と係合屈曲部11とが形成された部分は前記帯板20と重合する重合部14を構成しており、この重合部14の内周面は前記帯板20が前記バンド本体10に固着された状態で、前記湾曲部13によって所定の弾性力でもって前記帯板20の外周面に押接されるようになっている。
また、前記湾曲部13から所定距離隔てた位置には内方に向けて屈曲する段部15aが形成されており、この段部15aと前記湾曲部13との間には両側方から凹状に形成された前記取付係合部16が形成されている。
【0015】
前記段部15aの形成により、前記バンド本体10に前記帯板20が固着された状態では、前記バンド本体10の内周と前記帯板20の内周とは滑らかに連続した内周面となる。
一方、前記バンド本体10の他端から所定距離隔てた位置には前記係合穴12に係合する係合部17が形成されている。
【0016】
この係合部17から所定距離隔てた位置に、バンド式締結部材をペンチまたはプライヤ等の締付工具Tによって締付ける際に締付工具Tの一方の先端を係止する係止部18が形成されている。(図9乃至図11参照)
さらに、この係止部18から所定距離隔てた位置には、外方に向かってC状に湾曲する公差吸収部19が形成されている。この公差吸収部19によって、ブーツBの外周に対してバンド式締付部材における締付力(弾性力)を付与しているとともに、ブーツBの膨張収縮に対応し得るようになっている。
【0017】
前記係合部17には、前記重合部14の係合屈曲部11と係合して前記重合部14を外方に押し拡げながら前進する係合テーパ部17aと、バンド締付けが完了した状態で公差吸収部19の作用によってバンド式締結部材が拡げられた時に前記係合穴12に引っ掛かる係合突起部17bとが形成されている。
ここで、前記係合部17と前記係止部18はほぼ同一形状であって、各々はバンド本体10に互い違いとなる方向から形成されている。
【0018】
これら前記係合部17と前記係止部18は、図6の点線に示す形状に左右逆方向から加工された後に、各々側方からバンド本体10の外周面に対して直角に屈曲されることによって、バンド本体10の幅方向のほぼ中央に外周方向に伸びて設けられる。
このように前記係合部17と前記係止部18とが各々左右逆方向から屈曲されるため、屈曲時にバンド本体10に加わる屈曲荷重がほぼ左右均等となり、屈曲によるバンド本体1の変形を小さく抑えることができる。
【0019】
前記公差吸収部19からさらに所定距離隔てた位置には、段部15bが形成されており、この段部15bによってブーツBの外周面との間に形成された隙間に前記帯板20の他端が挿入されるようになっている。
前記帯板20の一端には、図7及び図8に示すように、前記バンド本体10に設けられた前記取付係合部16に固着される前記取付部21が設けられている。この取付部21はバンド本体10に対する取付け前の状態においては、図8の点線に示すように側方に突出した形状であり、この状態で、取付部21は帯板20と同一幅の所で屈曲されるとともに、帯板20の中央付近で両取付部21を帯板20の外周面に対して直角に屈曲されてかしめ重合されることによって、図3に示すように、バンド本体10に対して固着される。
【0020】
ここで、重合された取付部21は前記バンド本体10に設けられた前記係止部18と対となる他方の係止部22を構成している。
この係止部22から所定距離隔てた位置には、締付部材の締付け時に、前記バンド本体10の他端が前記重合部14と係合した際に、重合部14における弾性力によってバンド本体10の他端が帯板20の外周面上から逸脱しないように、バンド本体10の他端を案内保持する一対の案内部23が形成されている。
【0021】
この案内部23は、図8の点線に示すように帯板20の両側方に突出した状態から帯板20の幅と一致する位置で実線で示すように帯板20の外周面に対して直角に屈曲されて設けられる。
前記案内部23からさらに所定距離隔てた位置には、バンド締付けが完了した状態で前記公差吸収部19の全体を側方から挟むように位置され、前記公差吸収部19を飛び石等の外部変形要因が当たって弾性力が低下する等の悪影響が起こり得ないように、公差吸収部19を保護する一対の保護カバー24が設けられている。
【0022】
この保護カバー24は、前記案内部23と同様に、図8の点線に示すように帯板20の側方に突出した状態から帯板20の幅と一致する位置で実線に示すように帯板20の外周面に対して直角に屈曲されて設けられる。
また、この保護カバー24は図3,図4に示すように、バンド締付け前の状態において、前記バンド本体10の他端を前記帯板20上に保持している。これにより、前記バンド本体10の他端を前記案内部23までスムーズにかつ確実に案内移動させることができる。
【0023】
次に上述した構成における本発明の実施の形態を示すバンド式締結部材の締付け動作を説明する。
バンド締付前の状態では、図3に示すように、前記バンド本体10の他端は前記帯板20の外周面上に接触しており、一対の保護カバー24によって紙面に垂直な方向(バンド本体10の幅方向)を支持されており、バンド式締結部材は被締結部材であるブーツBの外径より大きい径の略リング状となっている。ここで、このバンド式締結部材はブーツBを挿入しない状態でバンド締付が完了した状態での内周径は、ブーツBの外径より小さく設定されている。
【0024】
この状態で、ブーツBの外周に締結部材を挿入する。
次に、締付工具Tによって、一対の係止部18,22を把持して、これら一対の係止部18,22が近づく方向に締付けを開始する。
そして、徐々に締付けられていくことによって、バンド本体10の他端は、図9に示すように、一対の保護カバー24に側方を案内されつつ帯板20の外周面上を滑って案内部11方向に移動される。
【0025】
さらに、締付けられると、バンド本体10の他端が案内部11に側方を案内される位置まで移動される。そして、側方を案内部11に案内されつつ、係合部17の係合テーパ部17aが係合屈曲部11の内周に係合して、両テーパ作用によって、図10に示すように、係合屈曲部11(重合部14)が湾曲部13による弾性作用に抗して外方に押し上げられる。
【0026】
ここで、帯板20の他端はブーツBの外周に摺接しながら移動し、徐々に公差吸収部19の内周と、ブーツBの外周との間を遮断する。これによって、公差吸収部19の内周にブーツBの外周が変形によって入り込むことを防止する。
さらに、締付けられると、図11に示すように、前記湾曲部13の弾性復帰力によって係合部17は係合穴12内に嵌まり込む。これは、前記湾曲部13の弾性力(スプリングバック)が作用するためである。これによってバンド本体10の他端は、重合部14の内周面と帯板20の外周面とによって弾性挟持される。
【0027】
一方、C状に湾曲した公差吸収部19が拡げられることによって、ブーツBの外周面に締付力が作用する。ここで、ブーツBに公差のバラツキがあったとしてもこの公差吸収部19によって吸収される。また、ブーツBの膨張収縮に対しても、つまり、挿着後のブーツ径の経時変化に対してもこの公差吸収部19おいて追従できる。
【0028】
この状態で、締付工具Tによる締付けを解除すると、締結部材による締付力に対してブーツBの外周において作用する反作用によって、締結部材が拡げられる。これによって、図1及び図2に示すように係合穴12には係合部17の係合突起部17bが引っ掛かり締付部材の拡がりが係止され、バンド締付が完了される。
【0029】
このバンド締付完了時には、保護カバー24は公差吸収部19を両側から挟み込む位置に位置され、飛び石等の外部変形要因から公差吸収部19を保護している。
また、前記公差吸収部19から所定距離隔てた位置に形成された段部15bが形成されていることによって、この段部15bによって形成されたブーツBの外周とバンド本体10の内周との隙間に帯板20が挿入され、バンド本体10の内周及び帯板20の内周とは滑らかに連続した内周面となる。
【0030】
以上のように、締付工具Tによるワンタッチクランプによって、片手で簡単にかつ確実にブーツBの締付を完了することができる。
【0031】
【発明の効果】
以上述べたように本発明の請求項1にかかる発明においては、締付けが完了した状態で前記公差吸収部全体を両側側方から挟みこむ位置に位置する保護カバーを前記帯体の外周面にほぼ直角に屈曲して形成したので、公差吸収部を飛び石等から保護することができ、外部要因によって公差吸収部の弾性力が変化することを防止できる。また、締付前の状態において、バンド本体の形状を安定させるとともに、案内部にバンド本体の他端が案内されるまでの補助的な案内を行うため、さらに作業性を向上させることができる。
【図面の簡単な説明】
【図1】本発明の実施の形態におけるバンド式締結部材の締結後の側面図である。
【図2】本発明の実施の形態におけるバンド式締結部材の締結後の平面展開図である。
【図3】本発明の実施の形態におけるバンド式締結部材の締結前の側面図である。
【図4】本発明の実施の形態におけるバンド式締結部材の締結前の平面展開図である。
【図5】バンド本体の締結前の側面図である。
【図6】バンド本体の締結前の平面展開図である。
【図7】帯板の締結前の側面図である。
【図8】帯板の締結前の平面展開図である。
【図9】本発明の実施の形態におけるバンド締結部材の締結作動状態である。
【図10】本発明の実施の形態におけるバンド締結部材の締結作動状態である。
【図11】本発明の実施の形態におけるバンド締結部材の締結作動状態である。
【図12】従来の締結部材の締結前における全体図である。
【符号の説明】
B ブーツ(被締結部材)
T 締付工具
10 バンド本体
11 案内部
12 係合穴
14 重合部
17 係合部
19 公差吸収部
20 帯板
24 保護カバー
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a band-type fastening member that is attached to an outer periphery of a fastened portion and tightens the fastened portion.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a band-type fastening member that is inserted into the outer periphery of a fastened portion and fastens the fastened portion, there is, for example, one disclosed in Japanese Patent Publication No. 1-24811.
As shown in FIG. 12, this is formed of a band by processing a single metal plate, and is constituted by a band main body 1 and a sub band 2 which are curved in a substantially ring shape.
[0003]
An engaging projection 3 is formed at one end of the band main body 1, while an engaging hole 4 that engages with the engaging projection 3 is formed at the other end. The band main body 1 is configured to be endless by being engaged with the mating hole 4.
The band body 1 is formed with a caulking portion 5. By caulking the caulking portion 5 with a caulking tool (not shown), a tightening force is applied to a portion (not shown). Has become.
[0004]
The auxiliary band plate 2 is inserted into the inner periphery of the band body 1 corresponding to the caulking portion 5 when the caulking portion 5 is caulked, thereby preventing the portion to be fastened from being caught in the inner periphery of the caulking portion 5. It is.
[0005]
[Problems to be solved by the invention]
Conventionally, in order to engage the engaging protrusion 3 of the band main body 1 with the engaging hole 4, it is necessary to fit the engaging hole 4 from above the engaging protrusion 3. There was a problem that it was necessary to use it and workability was poor.
Further, if the engaging hole 4 is merely fitted into the engaging convex portion 3, a force for maintaining the state does not act, so that there is a possibility that the engaging hole 4 may come off when the hand is released.
[0006]
Therefore, even when the caulking portion 5 is swaged, it is necessary to support the engagement between the engaging projections 3 and the engaging holes 4, and both hands must be used, resulting in poor workability. .
[0007]
[Means for Solving the Problems]
The band-type fastening member of the present invention has been made in order to solve the above-mentioned problem. In the invention according to claim 1, a band-shaped band body having both ends free ends and a ring-shaped curved body, A band plate that is bent in a substantially arc shape and has one end fixed at a position separated from the one end of the band main body by a predetermined distance, and provided at one end of the band main body with a superposed portion that is superposed on the outer peripheral surface of the band plate. The overlapping portion is brought into contact with the band plate with a predetermined elastic force, an engaging portion is provided at the other end of the band main body, and the engaging portion is engaged with the engaging portion at the overlapping portion. a hole provided, constitutes the other end of the band body in a state where said engaging portion and the engaging hole is engaged so as to sandwich between the outer periphery of the strip and the inner periphery of the overlapping portion, the engagement The movement of the other end of the band body is considered near the start of engagement between the joining portion and the overlapping portion. In a band-type fastening member provided with a guide portion to be held on the band plate, a tolerance absorbing portion curved outwardly with a predetermined elastic force is provided on the band main body, and the entirety of the tolerance absorbing portion in a state where tightening is completed. Is formed by bending the protective cover at a position sandwiching the side from both sides at substantially right angles to the outer peripheral surface of the band body.
According to this, not only the fastening workability is improved, but also in a state where the fastening to the member to be fastened is completed, the protective cover is located at the position for protecting the tolerance absorbing portion. It can be protected from external deformation factors such as stepping stones. Further, in the state before the fastening, the shape of the band main body is stabilized, and auxiliary guidance is performed until the other end of the band main body is guided by the guide portion, so that workability is further improved.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
The band-type fastening member according to the present embodiment is for attaching a cylindrical boot B to a gear housing in a rack and pinion type power steering device, for example. As shown in FIGS. 1 and 2, the fastening member includes a band-shaped band body 10 having free ends at both ends, and a band-shaped, substantially arcuately curved, attachment end portion 16 of the band body 10. And a band plate 20 fixed by a mounting portion 21 provided at the bottom.
[0013]
As shown in FIGS. 5 and 6, the band main body 10 is formed in a band shape by processing a single metal plate, and is curved in a substantially ring shape.
At one end of the band main body 10, an engagement bending portion 11 which is bent outward by a predetermined angle and engages with the other end of the band main body 10 when tightening the band is formed.
A rectangular engaging hole 12 extending in the circumferential direction and penetrating the front and back of the band main body 10 is formed at a position separated from the engaging bent portion 11 by a predetermined distance, and is formed at a position further separated from the engaging hole 12 by a predetermined distance. A curved portion 13 that curves toward the right is formed.
[0014]
Here, the portion where the engagement hole 12 and the engagement bent portion 11 are formed constitutes a superposed portion 14 that overlaps with the band plate 20, and the inner peripheral surface of the superposed portion 14 is the same as the band plate 20. Is fixed to the band main body 10 and pressed against the outer peripheral surface of the band plate 20 by the bending portion 13 with a predetermined elastic force.
Further, a step portion 15a which is bent inward is formed at a position separated by a predetermined distance from the bending portion 13, and a concave portion is formed between the step portion 15a and the bending portion 13 from both sides. The mounting engagement portion 16 is formed.
[0015]
When the band plate 20 is fixed to the band main body 10 due to the formation of the step portion 15a, the inner periphery of the band main body 10 and the inner periphery of the band plate 20 are smoothly continuous inner peripheral surfaces. .
On the other hand, an engagement portion 17 that engages with the engagement hole 12 is formed at a position separated from the other end of the band body 10 by a predetermined distance.
[0016]
At a position separated from the engaging portion 17 by a predetermined distance, a locking portion 18 for locking one end of the tightening tool T when the band-type fastening member is tightened by the tightening tool T such as pliers or pliers is formed. ing. (See FIGS. 9 to 11)
Further, a tolerance absorbing portion 19 curved outward in a C-shape is formed at a position separated from the locking portion 18 by a predetermined distance. The tolerance absorbing portion 19 applies a tightening force (elastic force) of the band-type tightening member to the outer periphery of the boot B, and can cope with expansion and contraction of the boot B.
[0017]
The engagement portion 17 includes an engagement taper portion 17a that engages with the engagement bent portion 11 of the overlap portion 14 and pushes the overlap portion 14 outward while moving forward. An engagement projection 17b is formed which is engaged with the engagement hole 12 when the band-type fastening member is expanded by the action of the tolerance absorbing portion 19.
Here, the engaging portion 17 and the locking portion 18 have substantially the same shape, and each is formed on the band body 10 from a direction which is alternated.
[0018]
The engaging portion 17 and the locking portion 18 are bent right and left from the sides to the outer peripheral surface of the band body 10 after being processed into the shape shown by the dotted line in FIG. Accordingly, the band body 10 is provided at substantially the center in the width direction so as to extend in the outer peripheral direction.
As described above, since the engaging portion 17 and the locking portion 18 are each bent from the left and right opposite directions, the bending load applied to the band body 10 at the time of bending becomes substantially right and left, and the deformation of the band body 1 due to bending is reduced. Can be suppressed.
[0019]
A step portion 15b is formed at a position further away from the tolerance absorbing portion 19 by a predetermined distance, and the other end of the strip plate 20 is inserted into a gap formed between the step portion 15b and the outer peripheral surface of the boot B. Is to be inserted.
As shown in FIGS. 7 and 8, the one end of the band plate 20 is provided with the mounting portion 21 fixed to the mounting engagement portion 16 provided on the band body 10. The mounting portion 21 has a shape protruding sideward as shown by a dotted line in FIG. 8 before the mounting portion 21 is mounted on the band body 10, and in this state, the mounting portion 21 has the same width as the band plate 20. As shown in FIG. 3, both the attachment portions 21 are bent at right angles to the outer peripheral surface of the band plate 20 and are caulked and overlapped in the vicinity of the center of the band plate 20. Is fixed.
[0020]
Here, the overlapped mounting portion 21 constitutes the other locking portion 22 that is paired with the locking portion 18 provided on the band main body 10.
At a position separated from the locking portion 22 by a predetermined distance, when the other end of the band main body 10 engages with the overlapping portion 14 when the fastening member is tightened, the elastic force of the overlapping portion 14 A pair of guide portions 23 for guiding and holding the other end of the band main body 10 is formed so that the other end of the band body 20 does not deviate from the outer peripheral surface of the band plate 20.
[0021]
The guide portion 23 is perpendicular to the outer peripheral surface of the band plate 20 as shown by a solid line at a position corresponding to the width of the band plate 20 from a state protruding to both sides of the band plate 20 as shown by a dotted line in FIG. It is provided to be bent.
At a position further away from the guide portion 23 by a predetermined distance, the entirety of the tolerance absorbing portion 19 is sandwiched from the side in a state where the band tightening is completed, and the tolerance absorbing portion 19 is externally deformed by a stepping stone or the like. A pair of protective covers 24 for protecting the tolerance absorbing portions 19 are provided so that adverse effects such as a decrease in the elastic force due to the contact may not occur.
[0022]
Like the guide portion 23, the protective cover 24 projects from the side of the strip 20 as shown by a dotted line in FIG. 20 is provided at a right angle to the outer peripheral surface.
As shown in FIGS. 3 and 4, the protective cover 24 holds the other end of the band main body 10 on the band plate 20 before the band is tightened. Thereby, the other end of the band main body 10 can be smoothly and reliably guided to the guide portion 23.
[0023]
Next, a fastening operation of the band-type fastening member according to the embodiment of the present invention in the above-described configuration will be described.
In a state before the band is tightened, as shown in FIG. 3, the other end of the band main body 10 is in contact with the outer peripheral surface of the band plate 20, and the pair of protective covers 24 is used to make a direction perpendicular to the paper surface (band). (The width direction of the main body 10), and the band-type fastening member has a substantially ring shape having a diameter larger than the outer diameter of the boot B as the member to be fastened. Here, the inner diameter of the band-type fastening member when the band tightening is completed without inserting the boot B is set smaller than the outer diameter of the boot B.
[0024]
In this state, the fastening member is inserted into the outer periphery of the boot B.
Next, the pair of locking portions 18 and 22 are gripped by the tightening tool T, and tightening is started in a direction in which the pair of locking portions 18 and 22 approach.
Then, by being gradually tightened, the other end of the band body 10 slides on the outer peripheral surface of the band plate 20 while being guided sideways by the pair of protective covers 24, as shown in FIG. It is moved in 11 directions.
[0025]
Further, when tightened, the other end of the band main body 10 is moved to a position where it is guided laterally by the guide portion 11. Then, while being guided laterally by the guide portion 11, the engagement taper portion 17a of the engagement portion 17 engages with the inner periphery of the engagement bent portion 11, and by the double taper action, as shown in FIG. The engagement bending portion 11 (the overlapping portion 14) is pushed outward against the elastic action of the bending portion 13.
[0026]
Here, the other end of the band plate 20 moves while sliding on the outer periphery of the boot B, and gradually shuts off between the inner periphery of the tolerance absorbing portion 19 and the outer periphery of the boot B. This prevents the outer periphery of the boot B from entering the inner periphery of the tolerance absorbing portion 19 due to deformation.
When further tightened, as shown in FIG. 11, the engagement portion 17 is fitted into the engagement hole 12 by the elastic return force of the bending portion 13. This is because the elastic force (spring back) of the bending portion 13 acts. Thus, the other end of the band body 10 is elastically held between the inner peripheral surface of the overlapping portion 14 and the outer peripheral surface of the band plate 20.
[0027]
On the other hand, the tightening force acts on the outer peripheral surface of the boot B by expanding the C-shaped tolerance absorbing portion 19. Here, even if there is a variation in the tolerance of the boot B, it is absorbed by the tolerance absorbing portion 19. Further, the tolerance absorbing section 19 can follow the expansion and contraction of the boot B, that is, the temporal change of the boot diameter after insertion.
[0028]
In this state, when the fastening by the fastening tool T is released, the fastening member is expanded by the reaction acting on the outer periphery of the boot B against the fastening force by the fastening member. As a result, as shown in FIGS. 1 and 2, the engaging projection 17b of the engaging portion 17 is caught in the engaging hole 12, and the expansion of the tightening member is locked, thereby completing the band tightening.
[0029]
When the band tightening is completed, the protective cover 24 is located at a position sandwiching the tolerance absorbing portion 19 from both sides, and protects the tolerance absorbing portion 19 from external deformation factors such as stepping stones.
In addition, since the step portion 15b is formed at a position separated from the tolerance absorbing portion 19 by a predetermined distance, the gap between the outer periphery of the boot B formed by the step portion 15b and the inner periphery of the band body 10 is formed. The band plate 20 is inserted into the inner peripheral surface of the band main body 10 and the inner periphery of the band plate 20.
[0030]
As described above, with the one-touch clamp using the tightening tool T, the tightening of the boot B can be completed easily and reliably with one hand.
[0031]
【The invention's effect】
As described above, in the invention according to claim 1 of the present invention, when the tightening is completed, the protection cover located at a position sandwiching the entire tolerance absorbing portion from both sides is substantially attached to the outer peripheral surface of the band body. Since it is formed to be bent at a right angle, the tolerance absorbing portion can be protected from stepping stones and the like, and the elastic force of the tolerance absorbing portion can be prevented from being changed by an external factor. Further, in a state before the tightening, the shape of the band main body is stabilized, and auxiliary guidance is performed until the other end of the band main body is guided by the guide portion, so that workability can be further improved.
[Brief description of the drawings]
FIG. 1 is a side view after a band type fastening member according to an embodiment of the present invention has been fastened.
FIG. 2 is an exploded plan view of the band-type fastening member according to the embodiment of the present invention after fastening.
FIG. 3 is a side view of the band type fastening member according to the embodiment of the present invention before fastening.
FIG. 4 is a developed plan view of the band-type fastening member according to the embodiment of the present invention before fastening.
FIG. 5 is a side view of the band main body before fastening.
FIG. 6 is a developed plan view of the band main body before fastening.
FIG. 7 is a side view of the strip before fastening.
FIG. 8 is an exploded plan view before fastening the strip.
FIG. 9 shows a fastening operation state of the band fastening member according to the embodiment of the present invention.
FIG. 10 shows a fastening operation state of the band fastening member according to the embodiment of the present invention.
FIG. 11 shows a fastening operation state of the band fastening member according to the embodiment of the present invention.
FIG. 12 is an overall view of a conventional fastening member before fastening.
[Explanation of symbols]
B boots (fastened member)
T Tightening tool 10 Band body 11 Guide part 12 Engagement hole 14 Overlap part 17 Engagement part 19 Tolerance absorption part 20 Strip 24 Protective cover

Claims (1)

帯状で両端を自由端としリング状に湾曲されたバンド本体と、帯状であって略円弧状に湾曲し前記バンド本体の一端から所定距離隔てた位置に一端が固着される帯板とを備え、前記バンド本体の一端に前記帯板の外周面に重合する重合部を設け、この重合部を前記帯板に対して所定の弾性力でもって当接するようにし、前記バンド本体の他端に係合部を設けるとともに、前記重合部に前記係合部と係合する係合穴を設け、前記係合部と前記係合穴とが係合した状態で前記バンド本体の他端を前記重合部の内周と前記帯板の外周とで挟持するように構成し、前記係合部と前記重合部との係合開始付近に前記バンド本体の他端の移動を案内保持する案内部を前記帯板に設けたバンド式締結部材において、前記バンド本体に所定の弾性力をもって外方に向かって湾曲した公差吸収部を設け、締付けが完了した状態で前記公差吸収部全体を両側側方から挟みこむ位置に位置する保護カバーを前記帯体の外周面にほぼ直角に屈曲して形成したことを特徴とするバンド式締結部材。A band body which has a band shape and both ends are free ends and is curved in a ring shape, and a band plate which has a band shape, is curved in a substantially arc shape, and has one end fixed to a position separated from one end of the band main body by a predetermined distance, An overlap portion is provided at one end of the band body to overlap the outer peripheral surface of the band plate, and this overlap portion is brought into contact with the band plate with a predetermined elastic force, and is engaged with the other end of the band body. A portion is provided, and an engagement hole for engaging the engagement portion is provided in the overlap portion, and the other end of the band main body is connected to the overlap portion with the engagement portion and the engagement hole engaged. A guide portion configured to be sandwiched between an inner periphery and an outer periphery of the band plate, and a guide portion for guiding and holding the movement of the other end of the band main body near the start of engagement between the engaging portion and the overlapping portion. In the band-type fastening member provided in the above, the band body is externally attached with a predetermined elastic force. Is provided, and a protective cover located at a position sandwiching the entire tolerance absorbing portion from both sides in a state where tightening is completed is formed by being bent substantially at right angles to the outer peripheral surface of the band body. band-type fastening member, characterized in that it has.
JP19025595A 1995-07-26 1995-07-26 Band type fastening member Expired - Fee Related JP3571118B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19025595A JP3571118B2 (en) 1995-07-26 1995-07-26 Band type fastening member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19025595A JP3571118B2 (en) 1995-07-26 1995-07-26 Band type fastening member

Publications (2)

Publication Number Publication Date
JPH0942229A JPH0942229A (en) 1997-02-10
JP3571118B2 true JP3571118B2 (en) 2004-09-29

Family

ID=16255101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19025595A Expired - Fee Related JP3571118B2 (en) 1995-07-26 1995-07-26 Band type fastening member

Country Status (1)

Country Link
JP (1) JP3571118B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010007752A (en) * 2008-06-26 2010-01-14 Jtekt Corp Boot band
US9624950B2 (en) * 2011-06-28 2017-04-18 Nhk Spring Co., Ltd. Boot band
CN111810498B (en) * 2020-08-27 2020-12-08 广东电网有限责任公司东莞供电局 A kind of electric power cement pole multifunctional hoop

Also Published As

Publication number Publication date
JPH0942229A (en) 1997-02-10

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