JP4237427B2

JP4237427B2 - Umbrella handle mounting structure

Info

Publication number: JP4237427B2
Application number: JP2001224307A
Authority: JP
Inventors: 秀子松本; 愈鶴北
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-25
Filing date: 2001-07-25
Publication date: 2009-03-11
Anticipated expiration: 2021-07-25
Also published as: JP2003033210A

Description

【０００１】
【発明の属する技術分野】
本発明は、傘の軸杆と柄との取付構造に関するものである。
【０００２】
【従来の技術】
傘の軸杆に柄を取り付ける為の構造としては、柄に設けられた軸杆差し込み孔に軸杆を圧入して接着する圧入接着構造と、軸杆端部に螺軸部を形成しておき、柄のネジ孔に軸杆の螺軸部を螺入するネジ継ぎ構造とが知られている。
【０００３】
【発明が解決しようとする課題】
前者の圧入接着構造では、金属製軸杆の場合、柄との接着強度を高める為に、軸杆の柄取付端部の表面にローレット加工や糸巻きを施したり、或いはかしめて変形させておき、当該柄取付端部の表面に接着剤を塗布した状態で柄の軸杆差し込み孔にネジ込むように強く圧入して所定深さまで差し込む必要が有り、手間と多大の労力が必要であって、高齢の作業者では困難であった。又、接着剤が乾燥して所定の強度が出るまで出荷することが出来なかった。
【０００４】
一方、ネジ継ぎ構造では、作業そのものは簡単容易に行えるが、ネジ込み終了時の柄の向きが一定でないので直棒状の柄の取り付けに限定され、Ｕ字形等の方向性のある柄の取り付けには採用することが出来ないばかりでなく、柄と軸杆との嵌合深さが浅くなるので、使用時に柄と軸杆とのネジ嵌合部に集中する応力により、特に木製の柄の場合、当該柄のネジ孔が変形してがたつきが生じ易く、長期間の使用に耐え得ないという致命的な問題点がある。
【０００５】
【課題を解決するための手段】
本発明は上記のような従来の問題点を解消し得る傘の柄取付構造を提供することを目的とするものであって、その手段を後述する実施形態の参照符号を付して示すと、柄１には、軸杆差し込み孔３と、当該軸杆差し込み孔３の内周面と柄１の外周面との間で貫通する係止孔４とが設けられ、軸杆２のパイプ材で構成された柄取付端部２ａには、その外周面から出退自在で且つ当該柄取付端部２ａに内装した弾性体（Ｕ字形バネ材６）により突出方向に付勢された係止具５が設けられ、軸杆２の柄取付端部２ａを柄１の軸杆差し込み孔３に差し込んで前記係止具５を前記係止孔４に嵌合係止させて柄１と軸杆２とを結合させるようにした傘の柄取付構造において、前記軸杆２には、環状体１０が軸杆長さ方向に摺動自在に外嵌され、当該環状体１０が軸杆２と柄１の軸杆差し込み孔３との間の隙間に圧入された構成となっている。
【０００６】
上記構成の本発明を実施するについて、前記柄１の軸杆差し込み孔３には、その開口端から前記係止孔４の近傍位置まで、軸杆差し込み孔長さ方向と平行で前記係止孔４側が浅くなる係止具案内用傾斜溝９を形成することが出来る。
【０００７】
又、前記係止具５が軸杆２の柄取付端部２ａの周壁に設けられた係止具出退孔７から当該柄取付端部２ａ内に入り込むのを防止する係止具没入防止手段（スペーサー８）を併設することが出来る。この場合、係止具５を付勢する前記弾性体としてＵ字形バネ材６を使用し、当該Ｕ字形バネ材６の少なくとも一端外側に前記係止具５を取り付け、前記係止具没入防止手段として、前記Ｕ字形バネ材６の両端間が一定間隔以内に狭まるのを防止する弾性体製のスペーサー８を介装することが出来る。
【０００８】
又、前記環状体には、柄の端面に当接するフランジ部を設けることができるし、前記環状体は、先端側ほど薄肉に形成して、当該環状体の外周面が傾斜するように構成することができる。
【０００９】
前記係止孔４は柄１の外周面に開口しているので、この係止孔４の外側開口端より前記係止具５を押し込むことにより柄１と軸杆２とを離脱させることが出来るのであるが、前記係止孔４の外側開口端を閉塞するキャップ１７を装着することが出来る。
【００１０】
更に、軸杆２の柄取付端部２ａの長さに対し柄１の軸杆差し込み孔３の深さが深くて且つばらつきが有る場合は、当該柄１の軸杆差し込み孔３の奥端に弾性体１２を内装しておき、係止具５が係止孔４に係合する深さまで軸杆２の柄取付端部２ａを柄１の軸杆差し込み孔３に差し込んだとき、当該柄取付端部２ａが前記弾性体１２を圧縮するように構成することが出来る。
【００１１】
又、柄１が軸杆２の周りで自転することは係止具５と係止孔４との嵌合により防止されるが、この係止具５に応力集中するのを防止する為、柄１の軸杆差し込み孔３に内側に突出する突起１３を形成すると共に、軸杆２の柄取付端部２ａには、その先端から所要長さの凹入溝１４を軸杆長さ方向と平行に形成しておき、当該凹入溝１４と前記突起１３との嵌合により軸杆２と柄１との相対回転を防止するように構成することが出来る。
【００１２】
更に、前記係止孔４は柄１の外周面に開口しているので、当該係止孔４の加工が簡単になるが、この場合、当該柄１の軸杆２側の端部に軸杆長さ方向に摺動自在な玉留め１５が外嵌されるときは、当該玉留め１５が少なくとも後退非作用位置にあるとき、この玉留め１５により前記係止孔４の外側開口端が塞がれるように構成することが出来る。
【００１３】
以下に本発明の好適実施形態を添付図に基づいて説明すると、図１〜図３に於いて、１は合成樹脂製の柄であって、金属パイプ製の軸杆２の柄取付端部２ａを差し込む軸杆差し込み孔３を備えている。この軸杆差し込み孔３は、その奥端側が軸杆２の外径と略同一の内径を有し且つ開口端側が若干大径となる抜き勾配を有するものであり、奥端に近い側に半径方向に貫通する係止孔４を備えている。
【００１４】
軸杆２の柄取付端部２ａには、これを柄１の軸杆差し込み孔３の奥端付近まで差し込んだとき、前記係止孔４に嵌合する係止具５が設けられている。この係止具５は、軸杆２の柄取付端部２ａ内に挿入し得るＵ字形バネ材６（板バネを使用しているが、バネ線材を使用することも出来る）の一端外側に固着された円柱状ピンから成るもので、前記Ｕ字形バネ材６をその弾性に抗して両端間の間隔を狭めた状態で軸杆２の柄取付端部２ａ内に挿入し、当該軸杆２の柄取付端部２ａの周壁に設けられた係止具出退孔７に係止具５を前記Ｕ字形バネ材６の弾性復帰力で嵌合突出させている。
【００１５】
尚、前記Ｕ字形バネ材６の両端外側に係止具５を取り付け、軸杆２の柄取付端部２ａの直径方向両側に係止具５を突設させることも可能であるし、それぞれ前記Ｕ字形バネ材６等の弾性体で突出方向に付勢された、独立した複数の係止具５を設けることも出来る。これら複数の係止具５が設けられる場合、柄１の軸杆差し込み孔３には、各係止具５に対応して複数の係止孔４が設けられる。
【００１６】
前記Ｕ字形バネ材６の両端部間には、ゴム等から成るスペーサー８が介装されている。このスペーサー８は、Ｕ字形バネ材６の一端内側に接着等の適当な手段で固着されるもので、係止具５をＵ字形バネ材６の弾性に抗して係止具出退孔７の方へ押し込んだとき、当該スペーサー８がＵ字形バネ材６の両端部間の間隔が一定距離以内に狭まるのを規制することにより、前記係止具５が係止具出退孔７から軸杆２の柄取付端部２ａ内に外れてしまうのを防止する係止具没入防止手段を構成している。
【００１７】
柄１の軸杆差し込み孔３の内周面には、その開口端から前記係止孔４の近傍位置まで、軸杆差し込み孔３の長さ方向と平行で前記係止孔４側が浅くなる係止具案内用傾斜溝９が形成されている。又、軸杆２には、軸杆長さ方向に摺動自在に合成樹脂製環状体１０が外嵌されている。この環状体１０は、柄１の端面に当接するフランジ部１１を有し、当該フランジ部１１と先端１０ａとの間の薄肉部分１０ｂの外周面が、先端１０ａ側ほど薄肉となるように傾斜せしめられている。
【００１８】
軸杆２の柄取付端部２ａに柄１を取り付けるときは、図２及び図３Ａに示すように、軸杆２の柄取付端部２ａから突出している係止具５を、柄１側の係止具案内用傾斜溝９の最も深い開口端に嵌合させた状態で、軸杆２の柄取付端部２ａを柄１の軸杆差し込み孔３内に差し込む。この結果、係止具５は、柄１側の係止具案内用傾斜溝９によって内側へＵ字形バネ材６の弾性に抗して退入せしめられながら係止孔４に向かって移動することになる。そして、係止具５が係止孔４に対応する深さまで軸杆２の柄取付端部２ａが柄１の軸杆差し込み孔３内に差し込まれると、図１及び図３Ｂに示すように、係止具５がＵ字形バネ材６の弾性復帰力で係止孔４内に突出移動して嵌合する。この後、図２に示すように予め軸杆２に外嵌されている環状体１０を柄１側へ摺動移動させ、そのテーパー状の薄肉部分１０ｂの先端１０ａを柄１の軸杆差し込み孔３の開口端と軸杆２との間の環状の隙間に差し入れ、係る状態で、当該環状体１０のフランジ部１１が柄１の端面に当接するまで、更に環状体１０を強く柄１側に押し込んで、図１に示すように、そのテーパー状の薄肉部分１０ｂの全体を柄１の軸杆差し込み孔３の開口端と軸杆２との間の環状の隙間に圧入することにより、軸杆２に対する柄１の取り付けが完了する。
【００１９】
上記のようにして軸杆２に取り付けられた柄１は、軸杆２より抜けること及び軸杆２の周りで自転することは、係止具５と係止孔４との嵌合により防止されており、そして柄１の軸杆差し込み孔３が抜き勾配を有するものでありながら、当該軸杆差し込み孔３の開口端と軸杆２との間の環状の隙間が環状体１０によって埋められているので、軸杆２に対する柄１の振れは確実に防止されている。
【００２０】
又、柄１が破損したときや別デザインの柄１を使用したいとき等、柄１を交換する必要が生じたときは、柄１に表面に開口している係止孔４に細い棒状体を差し込む等して、当該係止孔４内の係止具５をＵ字形バネ材６の弾性に抗して押し込み、当該係止具５を係止孔４内から内側へ退入させる。このとき、係止具５を押し込み過ぎるのをスペーサー８が抵抗になって制限するので、簡単に係止具５が軸杆２内に外れてしまうことは避けられる。しかして、係止具５を係止孔４内から内側へ退入させた状態で柄１を軸杆２から抜き取る方向に引っ張れば、軸杆２の柄取付端部２ａより柄１を抜き取ることが出来る。この後、先に説明した取付方法により新しい柄１を軸杆２の柄取付端部２ａに取り付ければ良い。尚、前記スペーサー８は弾性体から成るから、軸杆２の柄取付端部２ａ内に係止具５を組み込むときは、係止具５及びＵ字形バネ材６を軸杆２の柄取付端部２ａ内に挿入し得る状態まで、スペーサー８を弾性に抗して強力に圧縮させるようにＵ字形バネ材６の両端間の間隔を狭めることが出来る。
【００２１】
尚、環状体１０を使用しないで、従来採用されていた方法、即ち、取り付け状態に於いて、柄１の軸杆差し込み孔３の開口端付近に位置する軸杆２の外周面に予め接着テープを巻き付けておく方法により、軸杆差し込み孔３の開口端と軸杆２との間の環状の隙間を埋めるようにしても良い。しかしながら、上記実施形態のようにフランジ部１１を有する環状体１０を使用するときは、当該フランジ部１１により柄１の端面に開口している係止具案内用傾斜溝９の端部を閉塞することも出来る。
【００２２】
図４は、柄１の軸杆差し込み孔３の深さが軸杆２の柄取付端部２ａの長さより長いが、その長さの差にばらつきが有る場合の好適な変形例を示している。即ち、柄１の軸杆差し込み孔３の奥端に、ゴム等の弾性体１２が内装され、係止具５が係止孔４に係合する深さまで軸杆２の柄取付端部２ａを柄１の軸杆差し込み孔３に差し込んだとき、当該柄取付端部２ａが前記弾性体１２を圧縮するようにしている。具体的に説明すると、図４に示すように、軸杆２の柄取付端部２ａを柄１の軸杆差し込み孔３に差し込む途中に於いて、係止具５と係止孔４との間の残距離Ｌ１が、このときの軸杆２の柄取付端部２ａの先端から弾性体１２までの残距離Ｄ２より大きいように構成されている。この構成により、軸杆２に柄１を取り付けた状態に於いて、当該軸杆２と柄１との間には、この両者を互いに離間させる方向に弾性体１２の圧縮反力が作用しているので、柄１の軸杆差し込み孔３の深さに多少のばらつきがあっても前記弾性体１２の圧縮反力が多少変化するだけで、がたつきなく柄１を軸杆２に取り付けることが出来る。
【００２３】
図５は、軸杆２と柄１との相対回転をより強力に防止する手段を組み込んだ変形例を示している。即ち、柄１の軸杆差し込み孔３には、内側に突出する突起１３が形成され、軸杆２の柄取付端部２ａには、その先端から所要長さの凹入溝１４が軸杆長さ方向と平行に形成され、当該凹入溝１４と前記突起１３との嵌合により軸杆２と柄１との相対回転、即ち、軸杆２を自転中心とする柄１の自転を防止するようにしている。尚、図示例では、直径方向２箇所に突起１３及び凹入溝１４を形成しているが、突起１３及び凹入溝１４は各１つでも良いし、各３つ以上でも良い。又、軸杆２側の凹入溝１４を、軸杆２の周壁を内側に凹入変形させて構成しているが、軸杆２の周壁にその先端から切欠き溝を形成し、当該切欠き溝を前記凹入溝１４とすることも出来る。勿論、柄１の軸杆差し込み孔３の全長にわたって連続する突条形の突起１３を設け、軸杆２の柄取付端部２ａには、その全長にわたって凹入溝１４を形成することも出来る。
【００２４】
軸杆２は、柄取付端部２ａを含めてその全長が１本の金属製パイプ材から構成されている場合の他、図６に示すように、木製の軸杆本体２ｂの先端に金属製パイプ材から成る柄取付端部２ａを接続して成るものであっても良い。
【００２５】
図７は、柄１の軸杆２側の端部に玉留め１５が装着されている場合の変形例を示している。玉留め１５は、柄１の軸杆２側の端部に外嵌固定された環状ベース１６に軸杆２の長さ方向に一定範囲内で摺動自在に外嵌された環状体から成るもので、閉じられた傘の軸杆２の周囲に集合された各支骨の先端部に対し外嵌する進出作用位置（図示の位置）と、後退させて各支骨の先端部から外れた後退非作用位置との間で、指先操作により移動せしめられるものであるが、図７Ａでは、環状ベース１６によって柄１側の係止孔４の外側開口端が塞がれる位置に当該係止孔４（軸杆２側の係止具５）が設けられている。従って、玉留め１５が進出作用位置（図示の位置）と後退非作用位置との何れの位置にあるときも、当該玉留め１５により前記係止孔４の外側開口端が塞がれることになる。又、図７Ｂでは、柄１側の係止孔４の外側開口端が環状ベース１６から外れており、玉留め１５を図示のように進出作用位置に移動させた状態では、係止孔４の外側開口端が露出し、玉留め１５を後退非作用位置に移動させた状態では、係止孔４の外側開口端が当該玉留め１５により塞がれるので、係止孔４を利用して係止具５を操作し、柄１を交換することが出来る。
【００２６】
以上の各変形例は、それぞれ組み合わせることが出来る。又、例えば図７Ａに示すように構成したり、係止孔４の外側開口端をパテ等の適当な固定栓で塞いでしまうか又は最初から柄１の表面には開口しない係止孔として、柄１の交換が出来ないように構成することも出来るが、柄１の表面に開口する係止孔４である場合、図１Ｂに仮想線で示すように、係止孔４の外側開口端に着脱自在なキャップ１７を装着しておくことも出来る。
【００２７】
【発明の効果】
本発明の傘の柄取付構造は以上のように実施し且つ使用することができるものであって、係る本発明の柄取付構造によれば、柄取付作業に際し、軸杆に対するローレット加工、接着剤塗布、糸巻施工、かしめ等の一切の補助作業無しに、単に柄の軸杆差し込み孔に軸杆の柄取付端部を差し込むだけで、軸杆に対し柄を、抜け止め及び相対回転出来ない状態に取り付けることが出来、柄取付作業の手間及び労力の大幅な軽減、延いてはコストダウンを図ることが出来、高齢者でも容易に傘の組立作業に従事させることが出来る。しかも、接着剤が乾燥しなければ集荷出来ないというような不都合も無いし、ネジ継ぎ構造のように柄のデザインが限定されたり、経年劣化で柄にがたつきが生じ易いというようなことも無い。又、柄側の係止孔が貫通しているので、この係止孔の外側開口端より係止具を押し込んで、一旦組み付けた柄を取り外すことが容易に出来るので、間違って取り付けた柄の交換や、破損した柄の取り替え、或いは別のデザインの柄との交換作業等も簡単容易に行える。更に本発明の構成によれば、柄が合成樹脂製で軸杆差し込み孔に抜き勾配が設けられる場合でも、柄をがたつきなく強固に取り付けることが出来、しかも、軸杆にテープを巻く等の作業に比べて作業性が良いし、柄からはみ出たテープが見栄えを悪くするようなことも無い。
【００２８】
尚、請求項２に記載の構成によれば、柄の軸杆差し込み孔に対し軸杆の柄取付端部を挿入するとき、係止具案内用傾斜溝により係止具を係止孔に自動的に導くことが出来、柄取付作業が一層容易になる。
【００２９】
又、請求項３に記載の構成によれば、軸杆に柄を組み付けるときや柄の交換の為に、係止具を軸杆の柄取付端部の表面から退入させるとき、誤って係止具を押し込み過ぎて軸杆の柄取付端部内に落ち込んでしまうことが無くなり、柄取付作業や柄の交換作業を一層容易に行える。この場合、請求項４に記載の構成によれば、係止具没入防止手段の構成が簡単になり、安価に実施出来る。
【００３０】
更に、請求項５に記載の構成によれば、軸杆に外嵌されている環状体を当該軸杆と柄の軸杆差し込み孔との間の隙間に圧入するとき、当該環状体が有するフランジ部が柄の端面に当接するまで強く柄側に押し込むことができるし、柄の軸杆差し込み孔に係止具案内用傾斜溝を設けている場合、この係止具案内用傾斜溝の端部を前記フランジ部で閉塞することもできる。
【００３１】
又、請求項７に記載の構成によれば、柄が合成樹脂製で軸杆差し込み孔に抜き勾配が設けられる場合でも、柄をがたつきなく強固に取り付けることが出来、しかも、軸杆にテープを巻く等の作業に比べて作業性が良いし、柄からはみ出たテープが見栄えを悪くするようなことも無い。
【００３２】
又、請求項８に記載の構成によれば、柄に設けられる軸杆差し込み孔の深さに多少のばらつきが有る場合でも、軸杆に対し柄をしっかりと組付けることが出来る。
【００３３】
又、請求項９に記載の構成によれば、柄と軸杆との間に作用する相対回転力を係止具のみで受け持たせる場合と比較して、係止具や係止孔の破損を防止し、耐用年数を永くすることが出来る。
【００３４】
更に、請求項１０に記載の構成によれば、係止孔は柄の外周面に開口しても良いので、当該係止孔の加工が簡単容易に行えるにもかかわらず、柄の軸杆側の端部に玉留めが装着されている場合、この玉留めが少なくとも後退非作用位置にあるとき、当該玉留めにより前記係止孔の外側開口端を塞ぐことが出来るので、キャップ等、係止孔の外側開口端を塞ぐ専用の手段を使用する必要がない。
【図面の簡単な説明】
【図１】Ａ図は傘の軸杆とこれに取り付けられた柄とを示す側面図であり、Ｂ図は軸杆と柄との取付構造を示す要部の縦断側面図である。
【図２】軸杆と柄との結合直前の状態を示す要部の縦断側面図である。
【図３】Ａ図は軸杆と柄との結合直前の状態を示す要部の横断面図であり、Ｂ図は同結合状態での要部の横断面図である。
【図４】第一変形例を示す要部の縦断側面図である。
【図５】Ａ図は第二変形例を示す要部の縦断側面図であり、Ｂ図は同要部の横断面図である。
【図６】第三変形例を示す要部の縦断側面図である。
【図７】Ａ図は第四変形例を示す要部の縦断側面図であり、Ｂ図は第五変形例を示す要部の縦断側面図である。
【符号の説明】
１合成樹脂製の柄
２金属パイプ製の軸杆
２ａ柄取付端部
３軸杆差し込み孔
４係止孔
５係止具
６Ｕ字形バネ材（弾性体）
７係止具出退孔
８ゴム等から成るスペーサー（係止具没入防止手段）
９係止具案内用傾斜溝
１０合成樹脂製環状体
１１フランジ部
１２ゴム等の弾性体
１３突起
１４凹入溝
１５玉留め[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for attaching an umbrella shaft and handle.
[0002]
[Prior art]
The structure for attaching the handle to the shaft shaft of the umbrella includes a press-fit adhesive structure in which the shaft rod is press-fitted into a shaft rod insertion hole provided in the handle, and a screw shaft portion is formed at the end of the shaft rod. A screw joint structure in which a screw shaft portion of a shaft rod is screwed into a screw hole of a handle is known.
[0003]
[Problems to be solved by the invention]
In the former press-fit adhesive structure, in the case of a metal shaft, in order to increase the adhesive strength with the handle, the surface of the handle attachment end portion of the shaft is subjected to knurling or bobbining, or crimped and deformed. It is necessary to press into the shaft shaft insertion hole of the handle in a state where an adhesive is applied to the surface of the handle attachment end, and to insert it to a predetermined depth, which requires labor and a great deal of labor. It was difficult for the workers. Moreover, it was not possible to ship until the adhesive was dried and had a predetermined strength.
[0004]
On the other hand, in the screw joint structure, the work itself can be performed easily and easily, but since the orientation of the handle at the end of screwing is not constant, it is limited to the attachment of a straight rod-like handle, for attaching a handle with a direction such as a U-shape. Not only can not be used, but also because the mating depth between the handle and the shaft rod becomes shallow, the stress concentrated on the screw fitting part between the handle and the shaft rod during use, especially in the case of a wooden handle There is a fatal problem that the screw hole of the handle is easily deformed and rattles easily and cannot be used for a long time.
[0005]
[Means for Solving the Problems]
An object of the present invention is to provide an umbrella handle mounting structure that can solve the conventional problems as described above, and the means thereof is shown with reference numerals of embodiments to be described later. The handle 1 is provided with a shaft rod insertion hole 3 and a locking hole 4 penetrating between the inner peripheral surface of the shaft rod insertion hole 3 and the outer peripheral surface of the handle 1. The configured handle attaching end 2a has a locking tool 5 that is urged in the protruding direction by an elastic body (U-shaped spring material 6) that is freely retractable from the outer peripheral surface of the handle attaching end 2a. Is inserted into the shaft rod insertion hole 3 of the handle 1 and the locking tool 5 is fitted and locked to the locking hole 4 so that the handle 1 and the shaft rod 2 in the handle mounting structure umbrella which is adapted to couple said the shaft rod 2, the annular member 10 is fitted slidably in the axial杆長direction, the annular body 0 has a configuration which is pressed into the gap between the shaft rod insertion hole 3 of the shaft rod 2 and the handle 1.
[0006]
In carrying out the present invention having the above-described configuration, the shaft hole insertion hole 3 of the handle 1 extends from the opening end to a position near the locking hole 4 in parallel with the shaft hole insertion hole length direction. It is possible to form the locking guide guiding inclined groove 9 whose side 4 is shallow.
[0007]
Moreover, the locking tool immersion preventing means for preventing the locking tool 5 from entering the handle mounting end portion 2a from the locking tool exit / retract hole 7 provided on the peripheral wall of the handle mounting end portion 2a of the shaft 2. (Spacer 8) can be added. In this case, a U-shaped spring material 6 is used as the elastic body for urging the locking tool 5, the locking tool 5 is attached to at least one outer side of the U-shaped spring material 6, and the locking tool immersion preventing means is provided. As described above, it is possible to interpose an elastic spacer 8 that prevents both ends of the U-shaped spring material 6 from narrowing within a predetermined interval.
[0008]
In addition, the annular body can be provided with a flange portion that comes into contact with the end face of the handle, and the annular body is formed so as to be thinner toward the tip side so that the outer peripheral surface of the annular body is inclined. be able to.
[0009]
Since the locking hole 4 opens on the outer peripheral surface of the handle 1, the handle 1 and the shaft rod 2 can be detached by pushing the locking tool 5 from the outer opening end of the locking hole 4. However, a cap 17 that closes the outer opening end of the locking hole 4 can be attached.
[0010]
Further, when the depth of the shaft rod insertion hole 3 of the handle 1 is deep and uneven with respect to the length of the handle attachment end portion 2a of the shaft rod 2, the depth of the shaft rod insertion hole 3 of the handle 1 is increased. When the elastic body 12 is housed and the handle attachment end 2a of the shaft 2 is inserted into the shaft insert hole 3 of the handle 1 to the depth at which the lock 5 is engaged with the lock hole 4, the handle is attached. The end 2a can be configured to compress the elastic body 12.
[0011]
In addition, the rotation of the handle 1 around the shaft rod 2 is prevented by the fitting of the locking tool 5 and the locking hole 4, but in order to prevent stress concentration on the locking tool 5, A projection 13 projecting inwardly from the shaft rod insertion hole 3 is formed, and a recess groove 14 having a required length from the tip of the handle attachment end portion 2a of the shaft rod 2 is parallel to the shaft rod length direction. In this case, the shaft rod 2 and the handle 1 can be prevented from rotating relative to each other by fitting the concave groove 14 and the projection 13 together.
[0012]
Further, since the locking hole 4 is opened on the outer peripheral surface of the handle 1, the processing of the locking hole 4 is simplified. In this case, a shaft rod is formed at the end of the handle 1 on the shaft rod 2 side. When the ball clasp 15 slidable in the length direction is externally fitted, when the ball clasp 15 is at least in the retracting non-operating position, the outer opening end of the locking hole 4 is blocked by the ball clasp 15. Can be configured.
[0013]
A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 to 3, reference numeral 1 denotes a handle made of a synthetic resin, and a handle attachment end 2a of a shaft 2 made of metal pipe. A shaft rod insertion hole 3 is provided. The shaft rod insertion hole 3 has a draft angle in which the back end side has an inner diameter substantially the same as the outer diameter of the shaft rod 2 and the opening end side is slightly larger in diameter, and the radius is closer to the side closer to the back end. A locking hole 4 penetrating in the direction is provided.
[0014]
The handle attachment end portion 2a of the shaft rod 2 is provided with a locking tool 5 that fits into the locking hole 4 when it is inserted to the vicinity of the back end of the shaft rod insertion hole 3 of the handle 1. This locking tool 5 is fixed to one end outer side of a U-shaped spring material 6 (which uses a leaf spring, but can also use a spring wire material) that can be inserted into the handle mounting end 2a of the shaft rod 2. The U-shaped spring member 6 is inserted into the handle attachment end portion 2a of the shaft rod 2 in a state where the distance between both ends is narrowed against its elasticity, and the shaft rod 2 A locking tool 5 is fitted and protruded by an elastic return force of the U-shaped spring material 6 in a locking tool retracting hole 7 provided on the peripheral wall of the handle attachment end 2a.
[0015]
In addition, it is also possible to attach the locking tool 5 to the both outer sides of the U-shaped spring material 6 and project the locking tool 5 on both sides in the diameter direction of the handle mounting end portion 2a of the shaft rod 2. It is also possible to provide a plurality of independent fasteners 5 urged in the protruding direction by an elastic body such as a U-shaped spring material 6. When the plurality of locking tools 5 are provided, the shaft 1 insertion hole 3 of the handle 1 is provided with a plurality of locking holes 4 corresponding to the locking tools 5.
[0016]
A spacer 8 made of rubber or the like is interposed between both end portions of the U-shaped spring material 6. This spacer 8 is fixed to the inner side of one end of the U-shaped spring material 6 by an appropriate means such as adhesion, and the locking tool 5 is locked against the elasticity of the U-shaped spring material 6. When the spacer 8 is pushed in, the spacer 8 restricts the distance between the both ends of the U-shaped spring material 6 from being narrowed within a certain distance, whereby the locking tool 5 is pivoted from the locking tool retracting hole 7. A locking tool immersion preventing means for preventing the hook 2 from coming off into the handle attaching end 2a is configured.
[0017]
On the inner peripheral surface of the shaft rod insertion hole 3 of the handle 1, the locking hole 4 side becomes shallower in parallel with the length direction of the shaft rod insertion hole 3 from the opening end to a position near the locking hole 4. A stopper guide inclined groove 9 is formed. A synthetic resin annular body 10 is externally fitted to the shaft rod 2 so as to be slidable in the shaft rod length direction. The annular body 10 has a flange portion 11 that comes into contact with the end surface of the handle 1, and is inclined so that the outer peripheral surface of the thin portion 10b between the flange portion 11 and the tip 10a becomes thinner toward the tip 10a side. It has been.
[0018]
When attaching the handle 1 to the handle attachment end 2a of the shaft 2, as shown in FIGS. 2 and 3A, the locking tool 5 protruding from the handle attachment end 2a of the shaft 2 is attached to the handle 1 side. The handle mounting end 2 a of the shaft rod 2 is inserted into the shaft rod insertion hole 3 of the handle 1 in a state of being fitted to the deepest opening end of the locking tool guide inclined groove 9. As a result, the locking tool 5 moves toward the locking hole 4 while being retracted against the elasticity of the U-shaped spring material 6 inwardly by the locking tool guiding inclined groove 9 on the handle 1 side. become. Then, when the handle attachment end portion 2a of the shaft rod 2 is inserted into the shaft rod insertion hole 3 of the handle 1 to a depth corresponding to the locking hole 4, as shown in FIGS. 1 and 3B, The locking tool 5 projects and fits into the locking hole 4 by the elastic restoring force of the U-shaped spring material 6. After that, as shown in FIG. 2, the annular body 10 that is externally fitted to the shaft 2 in advance is slid toward the handle 1, and the tip 10 a of the tapered thin portion 10 b is inserted into the shaft 1 insertion hole of the handle 1. 3 is inserted into the annular gap between the open end of the shaft 3 and the shaft 2, and in this state, the annular body 10 is further strongly moved toward the handle 1 until the flange portion 11 of the annular body 10 abuts the end face of the handle 1. As shown in FIG. 1, the taper-shaped thin portion 10b is pressed into the annular gap between the opening end of the shaft rod insertion hole 3 of the handle 1 and the shaft rod 2 as shown in FIG. The attachment of the handle 1 to 2 is completed.
[0019]
The handle 1 attached to the shaft rod 2 as described above is prevented from coming off from the shaft rod 2 and rotating around the shaft rod 2 by the fitting of the locking tool 5 and the locking hole 4. In addition, while the shaft rod insertion hole 3 of the handle 1 has a draft, an annular gap between the opening end of the shaft rod insertion hole 3 and the shaft rod 2 is filled with the annular body 10. Therefore, the movement of the handle 1 with respect to the shaft rod 2 is reliably prevented.
[0020]
When it is necessary to replace the handle 1 such as when the handle 1 is damaged or when it is desired to use a handle 1 with a different design, a thin rod-like body is attached to the locking hole 4 opened on the surface of the handle 1. By inserting the locking tool 5 in the locking hole 4 against the elasticity of the U-shaped spring material 6, the locking tool 5 is retracted inward from the locking hole 4. At this time, since the spacer 8 restricts the pushing of the locking tool 5 by the resistance, it is possible to prevent the locking tool 5 from being easily disengaged into the shaft 2. Thus, if the handle 1 is pulled in the direction in which the handle 1 is pulled out from the shaft rod 2 with the locking tool 5 retracted inward from the inside of the locking hole 4, the handle 1 can be extracted from the handle mounting end 2a of the shaft rod 2. I can do it. Thereafter, the new handle 1 may be attached to the handle attachment end 2a of the shaft 2 by the attachment method described above. Since the spacer 8 is made of an elastic body, when the locking tool 5 is assembled into the handle mounting end 2a of the shaft 2, the locking tool 5 and the U-shaped spring material 6 are connected to the handle mounting end of the shaft 2. The space between both ends of the U-shaped spring material 6 can be reduced so that the spacer 8 is strongly compressed against elasticity until it can be inserted into the portion 2a.
[0021]
It should be noted that an adhesive tape is previously applied to the outer peripheral surface of the shaft rod 2 located in the vicinity of the opening end of the shaft rod insertion hole 3 of the handle 1 in the attached state without using the annular body 10, that is, in the attached state. May be filled with an annular gap between the open end of the shaft rod insertion hole 3 and the shaft rod 2. However, when the annular body 10 having the flange portion 11 is used as in the above embodiment, the end portion of the locking tool guide inclined groove 9 opened on the end surface of the handle 1 is closed by the flange portion 11. You can also
[0022]
FIG. 4 shows a preferred modification example in which the depth of the shaft rod insertion hole 3 of the handle 1 is longer than the length of the handle attachment end 2a of the shaft rod 2, but there is a variation in the length. . That is, an elastic body 12 such as rubber is housed inside the shaft rod insertion hole 3 of the handle 1, and the handle attachment end 2 a of the shaft rod 2 is moved to a depth at which the locking tool 5 engages with the locking hole 4. When the handle 1 is inserted into the shaft insertion hole 3 of the handle 1, the handle attachment end 2 a compresses the elastic body 12. More specifically, as shown in FIG. 4, in the middle of inserting the handle attachment end 2 a of the shaft 2 into the shaft insertion hole 3 of the handle 1, it is between the locking tool 5 and the locking hole 4. The remaining distance L1 is larger than the remaining distance D2 from the tip of the handle mounting end 2a of the shaft rod 2 to the elastic body 12 at this time. With this configuration, when the handle 1 is attached to the shaft 2, a compression reaction force of the elastic body 12 acts between the shaft 2 and the handle 1 in a direction to separate the two from each other. Therefore, even if there is some variation in the depth of the shaft rod insertion hole 3 of the handle 1, the handle 1 can be attached to the shaft rod 2 without rattling only by changing the compression reaction force of the elastic body 12 slightly. I can do it.
[0023]
FIG. 5 shows a modification in which means for preventing the relative rotation between the shaft rod 2 and the handle 1 is more powerfully incorporated. That is, a protrusion 13 projecting inward is formed in the shaft rod insertion hole 3 of the handle 1, and a recess groove 14 having a required length from the tip is formed on the handle attachment end 2 a of the shaft rod 2. Relative rotation between the shaft rod 2 and the handle 1, that is, rotation of the handle 1 with the shaft rod 2 as the center of rotation is prevented by fitting the recessed groove 14 and the projection 13. I am doing so. In the illustrated example, the protrusions 13 and the recessed grooves 14 are formed at two locations in the diameter direction, but the number of the protrusions 13 and the recessed grooves 14 may be one or three or more. Further, the concave groove 14 on the shaft rod 2 side is formed by indenting and deforming the peripheral wall of the shaft rod 2 inward, but a notch groove is formed on the peripheral wall of the shaft rod 2 from its tip, The notched groove may be the recessed groove 14. Of course, it is also possible to provide a ridge-shaped protrusion 13 that continues over the entire length of the shaft rod insertion hole 3 of the handle 1, and to form a recessed groove 14 in the handle attachment end portion 2 a of the shaft rod 2 over the entire length thereof.
[0024]
As shown in FIG. 6, the shaft rod 2 is made of metal at the tip of the wooden shaft rod main body 2b, in addition to the case where the entire length including the handle attachment end portion 2a is composed of one metal pipe material. It may be formed by connecting the handle attaching end 2a made of a pipe material.
[0025]
FIG. 7 shows a modification in the case where the ball clamp 15 is attached to the end portion of the handle 1 on the shaft rod 2 side. The ball clamp 15 is formed of an annular body that is externally fitted to an annular base 16 that is fitted and fixed to the end of the handle 1 on the side of the shaft 2 so as to be slidable within a certain range in the length direction of the shaft 2. Then, the advancing action position (the position shown in the figure) that fits around the distal ends of the spans assembled around the shaft shaft 2 of the closed umbrella, and the retreats that are retracted and removed from the distal ends of the spans In FIG. 7A, the locking hole 4 is moved to a position where the outer opening end of the locking hole 4 on the handle 1 side is closed by the annular base 16. (Locking tool 5 on the shaft shaft 2 side) is provided. Accordingly, when the ball retainer 15 is in either the advanced operation position (shown position) or the reverse non-operation position, the outer open end of the locking hole 4 is blocked by the ball retainer 15. . Further, in FIG. 7B, the outer opening end of the locking hole 4 on the handle 1 side is disengaged from the annular base 16, and when the ball clamp 15 is moved to the advanced operation position as shown, In the state where the outer opening end is exposed and the ball retainer 15 is moved to the retracted non-operating position, the outer opening end of the locking hole 4 is blocked by the ball retaining 15. The handle 1 can be exchanged by operating the stopper 5.
[0026]
Each of the above modifications can be combined. Further, for example, as shown in FIG. 7A, the outer opening end of the locking hole 4 is closed with an appropriate fixing plug such as a putty, or as a locking hole that does not open on the surface of the handle 1 from the beginning. The handle 1 can be configured not to be exchanged. However, in the case of the locking hole 4 opening on the surface of the handle 1, as shown by a virtual line in FIG. A removable cap 17 can also be attached.
[0027]
【The invention's effect】
The handle mounting structure of the umbrella of the present invention can be implemented and used as described above. According to the handle mounting structure of the present invention, the knurling process and the adhesive for the shaft rod are performed during the handle mounting operation. Without any auxiliary work such as application, spooling, caulking, etc., simply inserting the handle attachment end of the shaft rod into the handle shaft insertion hole of the handle prevents the handle from coming off and rotating relative to the shaft rod. It can be attached to the handle, and the labor and labor of the handle attaching work can be greatly reduced, and the cost can be reduced. Even an elderly person can easily engage in the assembling work of the umbrella. In addition, there is no inconvenience that it can not be collected unless the adhesive is dried, the design of the handle is limited like a screw joint structure, and the handle is prone to rattling due to aging. No. In addition, since the locking hole on the handle side penetrates, it is easy to remove the handle once assembled by pushing the locking tool from the outer opening end of this locking hole. Replacement, replacement of a damaged handle, or replacement with a handle of another design can be easily and easily performed. Furthermore, according to the configuration of the present invention, even when the handle is made of synthetic resin and the draft is provided in the shaft rod insertion hole, the handle can be firmly attached without rattling, and the shaft can be wound with tape or the like. The workability is better than the above work, and the tape protruding from the handle does not deteriorate the appearance.
[0028]
According to the second aspect of the present invention, when the handle attachment end portion of the shaft rod is inserted into the shaft shaft insertion hole of the handle, the locking tool is automatically turned into the locking hole by the locking guide guiding inclined groove. The pattern can be guided more easily, and the handle can be attached more easily.
[0029]
Further, according to the structure of claim 3, when the handle is assembled to the shaft rod or when the locking tool is retracted from the surface of the shaft mounting end portion of the shaft rod for replacement of the handle, the engagement is mistakenly made. The stopper is not pushed in too much to fall into the handle attachment end portion of the shaft rod, and the handle attaching operation and the handle changing operation can be performed more easily. In this case, according to the structure of Claim 4, the structure of a locking tool immersion prevention means becomes simple and it can implement at low cost.
[0030]
Furthermore, according to the structure of claim 5, when the annular body that is externally fitted to the shaft rod is press-fitted into the gap between the shaft rod and the shaft shaft insertion hole, the flange that the annular body has Can be pushed strongly into the handle side until the part comes into contact with the end face of the handle, and when a locking tool guide inclined groove is provided in the handle shaft insertion hole, the end of this locking tool guide inclined groove Can be closed by the flange portion.
[0031]
Moreover, according to the structure of Claim 7, even when the handle is made of a synthetic resin and a draft angle is provided in the shaft rod insertion hole, the handle can be firmly attached without rattling, and the shaft rod can be attached to the shaft rod. The workability is better than the work of winding the tape, and the tape protruding from the handle does not deteriorate the appearance.
[0032]
Moreover, according to the structure of Claim 8, even when there is some dispersion | variation in the depth of the shaft rod insertion hole provided in a handle | steering_wheel, a handle | steering_wheel can be assembled | attached firmly with respect to a shaft rod.
[0033]
Moreover, according to the structure of Claim 9, compared with the case where the relative rotational force which acts between a handle | steering wheel and a shaft rod is received only by a locking tool, a locking tool or a locking hole is damaged. Can be prevented and the service life can be extended.
[0034]
Furthermore, according to the structure of the tenth aspect, the locking hole may be opened on the outer peripheral surface of the handle. When a ball clamp is attached to the end of the ball, when the ball clamp is at least in a non-retreating position, the outer opening end of the locking hole can be closed by the ball clamp, There is no need to use dedicated means to plug the outer open end of the hole .
[Brief description of the drawings]
FIG. 1A is a side view showing a shaft shaft of an umbrella and a handle attached thereto, and FIG. 1B is a longitudinal side view of a main part showing an attachment structure of the shaft rod and handle.
FIG. 2 is a longitudinal side view of a main part showing a state immediately before a shaft rod and a handle are combined.
FIG. 3A is a cross-sectional view of the main part showing a state immediately before the shaft rod and the handle are combined, and FIG. B is a cross-sectional view of the main part in the combined state.
FIG. 4 is a longitudinal side view of a main part showing a first modification.
FIG. 5A is a longitudinal side view of a main part showing a second modification, and FIG. B is a cross-sectional view of the main part.
FIG. 6 is a longitudinal side view of a main part showing a third modification.
FIG. 7A is a vertical side view of the main part showing a fourth modification, and FIG. 7B is a vertical side view of the main part showing a fifth modification.
[Explanation of symbols]
1 Handle made of synthetic resin 2 Shaft rod 2a made of metal pipe Handle mounting end 3 Shaft rod insertion hole 4 Locking hole 5 Locking tool 6 U-shaped spring material (elastic body)
7 Locking tool exit / retraction hole 8 Spacer made of rubber, etc.
9 Inclination groove 10 for guiding a locking tool 10 Synthetic resin annular body 11 Flange portion 12 Elastic body 13 such as rubber 13 Protrusion 14 Recessed groove 15 Ball clamp

Claims

The handle is provided with a shaft rod insertion hole and a locking hole penetrating between the inner peripheral surface of the shaft rod insertion hole and the outer peripheral surface of the handle, and the handle attachment end made of the shaft rod pipe material The hook is provided with a locking tool that is detachable from its outer peripheral surface and is urged in the protruding direction by an elastic body provided in the handle attachment end, and the handle attachment end of the shaft rod is connected to the handle shaft of the handle. In an umbrella handle mounting structure in which a handle and a shaft rod are joined by being inserted into an insertion hole and fitting and locking the locking tool into the locking hole, an annular body is attached to the shaft rod. An umbrella handle mounting structure that is slidably fitted in the lengthwise direction and the annular body is press-fitted into a gap between the shaft rod and the shaft shaft insertion hole .

A locking tool guide inclined groove that is parallel to the axial insertion hole length direction and shallows on the locking hole side is formed in the handle shaft insertion hole of the handle from the opening end to a position near the locking hole. The umbrella handle mounting structure according to claim 1.

A locking tool immersion preventing means for preventing the locking tool from entering into the handle mounting end portion from a locking tool exit / retraction hole provided in a peripheral wall of the handle mounting end portion of the shaft rod is provided. The umbrella handle mounting structure according to 1 or 2.

The elastic body is made of a U-shaped spring material, the locking tool is attached to at least one outer side of the U-shaped spring material, and the U-shaped spring material has an interval between both ends as a locking tool immersion preventing means. The umbrella handle mounting structure according to claim 3, wherein an spacer made of an elastic body that prevents narrowing is interposed.

The umbrella ring attachment structure according to any one of claims 1 to 4, wherein the annular body has a flange portion that comes into contact with an end face of the handle.

The umbrella ring attachment structure according to any one of claims 1 to 5, wherein the annular body is formed thinner toward a tip end side, and an outer peripheral surface of the annular body is inclined .

The umbrella handle attachment structure according to any one of claims 1 to 6, wherein a cap for closing an outer opening end of the locking hole is attached .

An elastic body is embedded at the back end of the handle shaft insertion hole of the handle, and when the handle attachment end of the shaft handle is inserted into the handle shaft insertion hole to the depth where the locking tool engages with the lock hole, handle attachment end is configured to compress the elastic body, the handle attachment structure umbrella according to any one of claims 1-7.

A protrusion projecting inward is formed in the shaft shaft insertion hole of the handle, and a recessed groove of a required length is formed in parallel to the shaft shaft length direction from the tip of the handle mounting end portion of the shaft shaft, and to prevent rotation of the handle to rotate about the shaft rod by fitting between the recessed groove and the projection, the handle attachment structure umbrella according to any one of claims 1 to 8.

The locking hole opens on the outer peripheral surface of the handle, and a ball clamp that is slidable in the shaft rod length direction is externally fitted to an end of the handle on the shaft rod side. The umbrella handle mounting structure according to any one of claims 1 to 9, wherein the outer opening end of the locking hole is closed by the ball clamp when in position.