JP3159036B2

JP3159036B2 - Nail connection

Info

Publication number: JP3159036B2
Application number: JP04054796A
Authority: JP
Inventors: 治利柴田
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 1996-02-02
Filing date: 1996-02-02
Publication date: 2001-04-23
Anticipated expiration: 2016-02-02
Also published as: JPH09210029A

Description

【発明の詳細な説明】【０００１】【発明の属する技術分野】本発明は、複数の釘が装着さ
れる釘の連結体に関する。【０００２】【従来の技術】従来、複数の釘が装着される釘の連結体
の構造としては、図５に示されるようなものがある。連
結体２０は、長尺のベルト体２１と、釘２３の頭部２３
ａ側及び先端側２３ｃで釘２３の胴部２３ｂを保持する
釘保持部２２とを備えている。釘保持部２２は、ベルト
体２１の長手方向両縁部で、ベルト体２１に対して一体
的に形成されている。釘保持部２２には、胴部２３ｂと
当接して釘２３を保持する円形状の保持孔２４と、釘保
持部２２に釘２３を装着する際に、胴部２３ｂが挿入さ
れる挿入溝２５とが設けられている。【０００３】挿入溝２５は、保持孔２４と連設し、釘保
持部２２の外縁部２２ａに達するよう穿設されている。
又、挿入溝２５は、外縁部２２ａ側の幅が胴部２３ｂの
径と略等しくなっており、保持孔２４との連設部分の幅
が胴部２３ｂの径の１／２〜１／３程度となっている。
ベルト体２１及び釘保持部２２は、可撓性の軟質性樹脂
等で形成されており、保持孔２４の径は、胴部２３ｂの
径よりもやや小さくなっている。【０００４】釘保持部２２に釘２３を装着する場合、胴
部２３ｂが挿入溝２５を通過する際に、挿入溝２５及び
保持孔２４は一旦押し広げられる方向に変形する。そし
て、胴部２３ｂが保持孔２４に嵌め込まれると、釘保持
部２２は元の形状に戻ろうとする。この結果、頭部２３
ａ側及び先端２３ｃ側で釘２３の胴部２３ｂが、保持孔
２４の壁面に挟持され、連結体２０に釘２３が保持され
ることとなる。尚、釘２３は、ベルト体２１に沿って傾
斜状に並列して保持されている。【０００５】【発明が解決しようとする課題】しかしながら、作業者
が、図５のように釘２３が装着された連結体２０を持ち
運ぶ、或いは釘打機に装填する際、連結体２０自身が撓
んで、頭部２３ａ側の胴部２３ｂを保持する釘保持部２
２と、先端２３ｃ側の胴部２３ｂを保持する釘保持部２
２との相対位置が、所定の位置からずれてしまう場合が
ある。そして、各釘保持部２２の相対位置のずれによっ
て、釘２３の胴部２３ｂが、挿入溝２５を通過して釘保
持部２２から外れてしまう恐れがあった。特に、先端２
３ｃ側の釘保持部２４で、撓みによる変形が大きくな
り、胴部２３ｂが釘保持部２２から外れやすくなるとい
う問題があった。【０００６】又、釘２３の胴部２３ｂには、環状或いは
螺旋状の溝が切ってあるものがある。この環状或いは螺
旋状の溝は、釘打機によって壁面等に打ち込まれた釘２
３が、該壁面等から引き抜けないようにするために設け
られる。しかしながら、胴部２３ｂに上記のような溝が
切られた釘２３を、ベルト体２１に沿って傾斜した状態
で連結体２０に装着すると、保持孔２４の壁面の縁端部
には、溝の山の部分と接触する部分と、溝の谷の部分に
嵌まり込む部分とが生じる。この結果、連結体２０に装
着される釘２３の安定が悪くなり、釘打機で釘２３を打
ち込む際に不具合が生じるという問題がある。【０００７】【課題を解決するための手段】以上のような問題解決の
ために、本発明では、長尺ベルト体の長手方向両縁部
に、釘の頭部側及び釘の先端側で釘の胴部を保持する一
対の釘保持部が連設される可撓性の釘の連結体におい
て、上記釘保持部には釘の胴部を保持する保持孔が設け
られ、前記先端側保持部の前記保持孔は釘の胴部を部分
的に押圧保持するよう形成されると共に保持された釘に
負荷が掛かった時には応力集中を生じさせるように設け
られ、この先端側保持部には、釘保持部の外縁に向かっ
て延設される肉薄部が設けられ、上記応力集中により該
肉薄部が破断し得るようにしたことを特徴とするもので
ある。この発明によれば、保持孔に釘の胴部を挿入した
ときの該保持孔自身の撓みによって、釘の胴部を保持孔
のみで保持することができる。そして釘の胴部に環状或
いは螺旋状の溝が刻まれているものであっても、保持孔
が釘の胴部を部分的に押圧して保持するので、保持孔の
壁面が上記溝の谷の部分或いは溝の山の部分と接触する
面積が少なくなり、釘は保持孔に安定した状態で保持さ
れる。【０００８】【０００９】【００１０】【００１１】【実施の形態】以下、図面に基づいて本発明を説明す
る。図１は、本発明の第１の実施の形態の連結体の形状
を示す斜視図である。連結体１は、可撓性の樹脂素材等
で形成されており、長尺のベルト体２と、ベルト体２の
長手方向両縁端部でベルト体２と一体的に成形される釘
保持部３とによって構成される。この釘保持部３によっ
て、釘４の頭部４ａ側の胴部４ｂ或いは先端４ｃ側の胴
部４ｂが保持される（以下、釘４の頭部４ａ側の胴部４
ｂを保持する釘保持部３を頭部側保持部３ａと記載し、
釘４の先端４ｃ側の胴部４ｂを保持する釘保持部３を先
端側保持部３ｂと記載する）。尚、頭部側保持部３ａ及
び先端側保持部３ｂによって胴部４ｂが保持された釘４
は、ベルト体２に対して傾斜した状態になる。【００１２】図２は、第１の実施の形態の連結体の先端
側保持部３ｂの形状を示す平面図である。先端側保持部
３ｂには、保持孔５と、保持孔５の１つの角部５ａから
先端側保持部３ｂの外縁部に設けられたノッチ部９に向
かって延設される肉薄部６とが設けられている。又、側
方の外縁部には、各々切欠部１７ａが刻まれている。【００１３】保持孔５は、釘４の胴部４ｂと部分的に接
触するよう、矩形形状に開口している。そして、肉薄部
６と連設する角部５ａは鋭角になっており、角部５ａと
対向する位置の保持孔５の開口縁部には、切欠部１７ｂ
が穿設されている。その他の角部５ｂには丸みが付けら
れている。又、肉薄部６は、断面Ｖ字状の溝が先端側保
持部３ｂの両面に刻まれることで構成される。【００１４】図３は、第１の実施の形態の連結体の頭部
側保持部３ａの形状を示す平面図である。頭部側保持部
３ａには、保持孔７と、保持孔７から頭部側保持部３ａ
の外縁部に設けられるノッチ部１０に向かって延設され
るスリット８とが設けられている。保持孔７の開口の形
状は、従来の連結体の場合と同様、釘４の胴部４ｂの径
よりもやや小さな径を有する円形状となっている（以
下、単に保持孔７を円形孔７と記載する）。尚、頭部側
保持部３ａにも、先端側保持部３ｂと同様の切欠部１７
ａ、１７ｂが穿設されている。【００１５】図１乃至図３の連結体１に釘４を装着する
場合、釘４の先端４ｃが、先ず頭部側保持部３ａの円形
孔７に挿入される。そして、釘４の胴部４ｂが円形孔７
を通過すると、円形孔７の壁面が胴部４ｂによって押し
拡げられ、スリット８の部分で頭部側保持部３ａに間隙
が生じる。このように変形した頭部側保持部３ａは、頭
部側保持部３ａ自体の弾性によって元の形状に戻ろうと
するので、釘４の胴部４ｂは円形孔７の壁面で挟持され
た状態で円形孔７を通過することとなる。【００１６】円形孔７を通過した釘４の先端４ｃは、先
端側保持部３ｂの保持孔５に挿入され、その後釘４の胴
部４ｂが保持孔５を順次通過する。胴部４ｂが保持孔５
を通過する際、上記円形孔７を通過するとき同様、保持
孔５の壁面が胴部４ｂによって押し拡げられ、保持孔５
の形状が変形する。保持孔７の部分で変形した先端側保
持部３ｂは、先端側保持部３ｂ自体の弾性によって元の
形状に戻ろうとするので、釘４の胴部４ｂは保持孔５の
壁面においても挟持された状態で円形孔７を通過するこ
ととなる。そして、釘４の頭部４ａが頭部側保持部３ａ
と当接すると連結体１への釘４の装着が完了する。【００１７】次に連結体１に装着された釘４を、釘打機
の打ち込みによって、連結体１から離脱させる場合、先
ず釘４の頭部４ａ上面に負荷が掛かって、釘４の頭部４
ａの下面が頭部側保持部３ａを押圧する。頭部側保持部
３ａが押圧されると、釘４の胴部４ｂを挟持する円形孔
７の壁面が更に押し拡げられ、スリット８の部分で頭部
側保持部３ａに生じる間隙も拡げられる。【００１８】このような状態になると、円形孔７の切欠
部１７ｂと外縁部の切欠部１７ａとの間で、頭部側保持
部３ａ自体が折れ曲がりやすくなり、頭部側保持部３ａ
はスリット８を境として、矢印方向に押し拡げられる。
そして、円形孔７とスリット８との連設部分において、
上記間隙の幅が胴部４ｂの径と同等となるまで拡げられ
ると、釘４の胴部４ｂがこの間隙を通過し、釘４は頭部
側保持部３ａから離脱する（図３において２点鎖線で示
す）。【００１９】釘４が頭部側保持部３ａを離脱すると、釘
４の胴部４ｂが先端側保持部３ｂを通過し、頭部４ａ下
面が先端側保持部３ｂと当接する。先端側保持部３ｂと
当接した頭部４ａ下面が先端側保持部３ｂを押圧し、保
持孔５の角部５ａに応力集中が生じると、角部５ａの先
端に亀裂が生じる。この亀裂は、頭部４ａ下面による先
端側保持部３ｂへの押圧力が増大するに従って、肉薄部
６に沿って拡大する。そして、上記亀裂が切欠部９に達
すると、先端側保持部３ｂは、肉薄部６の部分で破断す
る。【００２０】肉薄部６の部分で先端側保持部３ｂが破断
した後、頭部４ａ下面によって先端側保持部３ｂに負荷
が掛かると、上記頭部側保持部３ａの場合と同様、切欠
部１７ａ、１７ｂの作用によって破断部分が押し拡げら
れる。そして、保持孔５と破断部分との連設部分におい
て、破断部分の間隙が胴部４ｂの径と同等となるまで拡
げられると、釘４の胴部４ｂが破断部分を通過し、釘４
は先端側保持部３ｂから離脱する（図２において２点鎖
線で示す）。これによって、釘４の連結体１からの離脱
が完了する。【００２１】尚、図１乃至図３の実施の形態の連結体１
において、頭部側保持部３ａで釘４の先端４ｃ側の胴部
４ｂを保持し、先端側保持部３ｂで釘４の頭部４ａ側の
胴部４ｂを保持するようにしてもよい。或いは、釘保持
部３の形状を先端側保持部３ｂと同じ形状に統一して釘
４を保持するようにしてもよい。図１乃至図３のように
連結体１を構成することで、連結体１には、釘４だけで
なくネジを装着することもできる。【００２２】又、保持孔の形状についても、釘の胴部と
保持孔の壁面とが部分的に接触できる形状であれば、本
実施の形態のような形状に限るものではない。更に本実
施の形態の連結体を形成する材質についても、可撓性の
ある材質であれば樹脂素材に限る必要はない。【００２３】図４は、本発明の第２の実施の形態の釘の
連結体の形状を示す平面図である。本実施の形態におい
ても、連結体１を構成するベルト体２と釘保持部１１と
は可撓性の樹脂素材で形成されている。そして、ベルト
体２の長手方向縁端部でベルト体２と一体的に形成され
る釘保持部１１には、開口部の形状が略十字型となって
いる保持孔１２が設けられる。【００２４】釘保持部１１には、十字形状の保持孔１２
の１つの先端から釘保持部１１の外縁部１１ｅに向かっ
て延設される肉薄部１３が設けれられている。又、肉薄
部１３と連設する保持孔１２の端部は鋭角となっている
（以下、肉薄部１３と連設する保持孔１２の端部を鋭角
部１４と記載する）。【００２５】又、鋭角部１４と釘保持部１１の外縁部と
の間の肉薄部１３には、抜き孔１５が穿設されており、
抜き孔１５には２つの角部１６が設けられている。この
とき、一方の角部１６の先端は、鋭角部１４の先端と対
峙しており、他方の角部１６の先端は、釘保持部１１の
外縁部１１ｅと対峙している。【００２６】釘保持部１１の保持孔１２に装着された釘
４ｂを釘打機によって打ち込むと、上記第１の実施の形
態と同様の作用によって、先ず鋭角部１４の先端に亀裂
が生じる。この亀裂は肉薄部１３に沿って拡がり、鋭角
部１４と対峙する角部１６に達する。この結果、保持孔
１２と抜き孔１５との間で釘保持部１１が破断する。【００２７】次に釘保持部１１の外縁部１１ｅと対峙す
る角部１６の先端に亀裂が生じる。この亀裂も又、肉薄
部１３に沿って拡がり、外縁部１１ｅに達する。これに
よって、釘保持部１１は、保持孔１２と外縁部１１ｅと
の間で破断することとなる。以下、上記第１の実施の形
体と同様、破断部分の間隙が拡がり、この破断部分を釘
４ｂの胴部が通過することで、釘４ｂが釘保持部１１か
ら離脱する。尚、抜き孔１５を第１の実施の形態の釘保
持部３に設けるようにしてもよい。【００２８】【発明の効果】以上のように本発明によれば、釘の連結
体の釘保持部に釘の胴部と部分的に接触する保持孔を設
けることで、保持孔に釘の胴部を挿入したときの該保持
孔自身の撓みによって、釘の胴部を保持孔のみで保持す
ることができる。このため、作業者が釘の連結体を持ち
運ぶ或いは釘打機に釘の連結体を装填する際に、釘が釘
保持部から外れることがなくなり、釘打機に装填された
釘を打ち込む際の不具合が解消される。【００２９】又、保持孔に角部を設けると共に、釘保持
部に該角部から釘保持部の外縁部に向かって延設される
肉薄部を設けことで、保持孔に胴部が保持された釘を釘
打機で打ち込む際に釘に負荷が掛かると、保持孔の角部
の応力集中によって肉薄部との連設部分の保持孔の角部
に亀裂が生じやすくなり、更に角部に生じた亀裂は、肉
薄部に沿って拡がりやすくなる。その結果、釘保持部
は、釘の打ち込み時には肉薄部に沿って破断しやすくな
る。そして、破断後の釘保持部は、保持孔の開口縁部の
上記角部と対向する位置、及び釘保持部の側方外縁部に
設けられた切欠部によって折れ曲がりやすくなる。その
ため、上記破断が生じた部分の間隙を釘の胴部が通過で
きる程度に押し拡げるために釘打機に必要な負荷が軽減
され、連結体からの釘の離脱が容易になる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nail connector having a plurality of nails mounted thereon. 2. Description of the Related Art Conventionally, there is a structure as shown in FIG. 5 for a structure of a connected body of nails on which a plurality of nails are mounted. The connecting body 20 includes a long belt body 21 and a head 23 of a nail 23.
a nail holding portion 22 for holding a body portion 23b of the nail 23 on the a side and the tip side 23c. The nail holding portions 22 are formed integrally with the belt body 21 at both longitudinal edges of the belt body 21. The nail holding portion 22 has a circular holding hole 24 for holding the nail 23 in contact with the body portion 23b, and an insertion groove 25 into which the body portion 23b is inserted when the nail 23 is mounted on the nail holding portion 22. Are provided. [0005] The insertion groove 25 is provided so as to be continuous with the holding hole 24 and is formed so as to reach the outer edge 22 a of the nail holding portion 22.
The width of the insertion groove 25 on the outer edge portion 22a side is substantially equal to the diameter of the body portion 23b, and the width of a portion connected to the holding hole 24 is １／ to ３ of the diameter of the body portion 23b. It has become about.
The belt body 21 and the nail holding portion 22 are formed of a flexible soft resin or the like, and the diameter of the holding hole 24 is slightly smaller than the diameter of the body portion 23b. When the nail 23 is mounted on the nail holder 22, when the trunk 23b passes through the insertion groove 25, the insertion groove 25 and the holding hole 24 are once deformed in a direction in which they are pushed and spread. Then, when the body 23b is fitted into the holding hole 24, the nail holding portion 22 attempts to return to the original shape. As a result, the head 23
The body 23b of the nail 23 is sandwiched between the wall surfaces of the holding holes 24 on the a side and the tip 23c side, and the nail 23 is held by the connecting body 20. The nails 23 are held in parallel in an inclined manner along the belt body 21. [0005] However, when an operator carries the connector 20 having the nails 23 mounted thereon as shown in FIG. 5 or loads the connector into a nailing machine, the connector 20 is bent. And a nail holder 2 for holding a trunk 23b on the side of the head 23a.
2 and a nail holder 2 for holding a trunk 23b on the tip 23c side
In some cases, the relative position with respect to 2 may deviate from a predetermined position. Then, there is a possibility that the body portion 23b of the nail 23 may pass through the insertion groove 25 and come off from the nail holding portion 22 due to a shift in the relative position of each nail holding portion 22. In particular, tip 2
In the nail holding portion 24 on the 3c side, there is a problem that the deformation due to the bending becomes large, and the trunk portion 23b is easily detached from the nail holding portion 22. [0006] Some nails 23b of the nail 23 have an annular or spiral groove. This annular or spiral groove is used for a nail 2 driven into a wall or the like by a nailing machine.
3 is provided so as not to be pulled out from the wall surface or the like. However, when the nail 23 having the above-described groove formed in the body 23b is attached to the connecting body 20 in a state of being inclined along the belt body 21, the edge of the wall surface of the holding hole 24 has the groove. There is a portion that contacts the peak and a portion that fits into the groove valley. As a result, there is a problem that the stability of the nail 23 attached to the connecting body 20 is deteriorated, and a problem occurs when the nail 23 is driven by the nailing machine. In order to solve the above problems, according to the present invention, a nail is provided at both ends of a long belt in the longitudinal direction at the head side of the nail and at the tip side of the nail. a pair of nail holding portion for holding the body portion in the coupling body of flexible nails that are continuously provided, and in the above nail holder is provided with holding holes for holding the body of the nail, the tip-side holding portion The holding hole is formed so as to partially press and hold the body of the nail, and is provided so as to cause stress concentration when a load is applied to the held nail.
The distal end side holding portion is provided with a thin portion extending toward the outer edge of the nail holding portion, and the thin portion can be broken by the stress concentration. . According to the present invention , the nail body can be held only by the holding hole due to the bending of the holding hole itself when the nail body is inserted into the holding hole. Even if the nail has a ring-shaped or spiral groove formed in the trunk, the holding hole partially presses and holds the nail body, so that the wall surface of the holding hole has a valley of the groove. The area in contact with the portion or the crest of the groove is reduced, and the nail is stably held in the holding hole. [0010] The present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the shape of the connector according to the first embodiment of the present invention. The connecting member 1 is formed of a flexible resin material or the like, and has a long belt member 2 and a nail holding portion formed integrally with the belt member 2 at both longitudinal ends of the belt member 2. And 3. The body 4b on the head 4a side or the body 4b on the tip 4c side of the nail 4 is held by the nail holding portion 3 (hereinafter, the body 4b on the head 4a side of the nail 4).
The nail holding part 3 holding b is described as a head side holding part 3a,
The nail holder 3 that holds the body 4b on the tip 4c side of the nail 4 is referred to as a tip holder 3b). The nail 4 whose body 4b is held by the head side holding part 3a and the tip side holding part 3b.
Is inclined with respect to the belt body 2. FIG. 2 is a plan view showing the shape of the distal end side holding portion 3b of the connector according to the first embodiment. The distal end side holding portion 3b, and the holding hole 5, and a thin portion 6 which extends towards one of the notch portions 9 from the corner 5a provided on the outer edge of the distal retaining portion 3b of the holding hole 5 Is provided. Further, the outer edges of the side, each notch 17a are engraved. The holding hole 5 has a rectangular shape so as to partially contact the body 4b of the nail 4. The corner 5a connected to the thin portion 6 has an acute angle, and a notch 17b is formed at the opening edge of the holding hole 5 at a position facing the corner 5a.
Are drilled. The other corners 5b are rounded. The thin portion 6 is formed by forming a groove having a V-shaped cross section on both surfaces of the distal-end-side holding portion 3b. FIG. 3 is a plan view showing the shape of the head side holding portion 3a of the connector according to the first embodiment. The head side holding part 3a has a holding hole 7 and a head side holding part 3a
And a slit 8 extending toward a notch portion 10 provided at the outer edge portion . The shape of the opening of the holding hole 7 is a circular shape having a diameter slightly smaller than the diameter of the body portion 4b of the nail 4 as in the case of the conventional connector (hereinafter, the holding hole 7 is simply referred to as the circular hole 7). Described). The notch 17 similar to the tip-side holding portion 3b is also provided in the head-side holding portion 3a.
a, 17b are drilled. When the nail 4 is mounted on the connecting body 1 shown in FIGS. 1 to 3, the tip 4c of the nail 4 is first inserted into the circular hole 7 of the head side holding portion 3a. The torso 4b of the nail 4 has a circular hole 7
, The wall surface of the circular hole 7 is pushed and expanded by the body portion 4 b, and a gap is generated in the slit 8 at the head side holding portion 3 a. The head-side holding portion 3a thus deformed attempts to return to the original shape by the elasticity of the head-side holding portion 3a itself, so that the body 4b of the nail 4 is held in the wall of the circular hole 7. It will pass through the circular hole 7. The tip 4c of the nail 4 that has passed through the circular hole 7 is inserted into the holding hole 5 of the tip-side holding portion 3b, and then the trunk 4b of the nail 4 sequentially passes through the holding hole 5. The body 4b is the holding hole 5
When passing through the circular hole 7, the wall surface of the holding hole 5 is pushed and expanded by the body
Is deformed. The tip side holding portion 3b deformed at the portion of the holding hole 7 tends to return to the original shape by the elasticity of the tip side holding portion 3b itself, so that the body 4b of the nail 4 is also held on the wall surface of the holding hole 5. It passes through the circular hole 7 in this state. Then, the head 4a of the nail 4 is attached to the head side holding portion 3a.
When the contact is made, the attachment of the nail 4 to the connector 1 is completed. Next, when the nail 4 attached to the connecting body 1 is separated from the connecting body 1 by driving of a nailing machine, a load is first applied to the upper surface of the head 4a of the nail 4, and the head of the nail 4 4
The lower surface of a presses the head side holding portion 3a. When the head-side holding part 3a is pressed, the wall surface of the circular hole 7 that holds the body part 4b of the nail 4 is further expanded, and the gap generated in the head-side holding part 3a at the slit 8 is also expanded. In such a state, the head-side holding portion 3a itself is easily bent between the notch portion 17b of the circular hole 7 and the notch portion 17a of the outer edge, and the head-side holding portion 3a
Is spread in the direction of the arrow with the slit 8 as a boundary.
Then, in the continuous portion of the circular hole 7 and the slit 8,
When the width of the gap is increased until the width of the gap becomes equal to the diameter of the body 4b, the body 4b of the nail 4 passes through the gap, and the nail 4 separates from the head side holding part 3a (two points in FIG. 3). Indicated by a dashed line). When the nail 4 separates from the head side holding part 3a, the trunk part 4b of the nail 4 passes through the tip side holding part 3b, and the lower surface of the head part 4a contacts the tip side holding part 3b. When the lower surface of the head 4a in contact with the distal-side holding portion 3b presses the distal-side holding portion 3b and stress concentrates on the corner 5a of the holding hole 5, a crack occurs at the tip of the corner 5a. This crack expands along the thin portion 6 as the pressing force of the lower surface of the head 4a on the distal end side holding portion 3b increases. Then, when the crack reaches the notch 9, the tip-side holding portion 3 b breaks at the thin portion 6. After the distal end holding portion 3b is broken at the thin portion 6, when a load is applied to the distal end holding portion 3b by the lower surface of the head 4a, the notch portion 17a is formed similarly to the case of the head side holding portion 3a. , 17b expands the broken portion. When the gap between the broken portion and the continuous portion between the holding hole 5 and the broken portion is expanded until the gap between the broken portion becomes equal to the diameter of the body portion 4b, the body portion 4b of the nail 4 passes through the broken portion and the nail 4
Is detached from the distal end side holding portion 3b (shown by a two-dot chain line in FIG. 2). Thereby, the detachment of the nail 4 from the connector 1 is completed. The connecting member 1 of the embodiment shown in FIGS.
In the above, the torso 4b on the head 4a side of the nail 4 may be held by the head side holding portion 3a while holding the torso 4b on the tip 4c side of the nail 4 by the head side holding portion 3a. Alternatively, the nail 4 may be held by unifying the shape of the nail holding portion 3 into the same shape as the distal end holding portion 3b. By configuring the connecting body 1 as shown in FIGS. 1 to 3, not only the nail 4 but also a screw can be attached to the connecting body 1. Also, the shape of the holding hole is not limited to the shape as in the present embodiment as long as the body of the nail can partially contact the wall surface of the holding hole. Further, the material forming the connecting body of the present embodiment is not limited to a resin material as long as it is a flexible material. FIG. 4 is a plan view showing a shape of a connected body of nails according to a second embodiment of the present invention. Also in the present embodiment, the belt body 2 and the nail holding portion 11 constituting the connecting body 1 are formed of a flexible resin material. The nail holding portion 11 formed integrally with the belt body 2 at the longitudinal edge of the belt body 2 is provided with a holding hole 12 whose opening has a substantially cross shape. The nail holding portion 11 has a cross-shaped holding hole 12.
A thin portion 13 is provided extending from one of the ends toward the outer edge 11e of the nail holding portion 11. The end of the holding hole 12 connected to the thin portion 13 has an acute angle (hereinafter, the end of the holding hole 12 connected to the thin portion 13 is referred to as an acute portion 14). A cutout hole 15 is formed in the thin portion 13 between the sharp portion 14 and the outer edge of the nail holding portion 11.
The cutout hole 15 is provided with two corner portions 16. At this time, the tip of one corner 16 faces the tip of the acute corner 14, and the tip of the other corner 16 faces the outer edge 11 e of the nail holder 11. When the nail 4b attached to the holding hole 12 of the nail holding portion 11 is driven by a nailing machine, a crack is first generated at the tip of the acute angle portion 14 by the same operation as in the first embodiment. The crack spreads along the thin portion 13 and reaches a corner 16 which faces the acute corner 14. As a result, the nail holding portion 11 is broken between the holding hole 12 and the hole 15. Next, a crack is formed at the tip of the corner 16 which faces the outer edge 11e of the nail holder 11. This crack also spreads along the thin portion 13 and reaches the outer edge 11e. As a result, the nail holding portion 11 is broken between the holding hole 12 and the outer edge 11e. Hereinafter, similarly to the first embodiment, the gap of the broken portion is widened, and the body of the nail 4b passes through the broken portion, whereby the nail 4b is separated from the nail holding portion 11 . In addition, the hole 15 may be provided in the nail holder 3 of the first embodiment. As described above, according to the present invention, the nail holding portion of the nail connecting member is provided with the holding hole which is in partial contact with the nail body, so that the nail body is provided in the holding hole. Due to the bending of the holding hole itself when the part is inserted, the body of the nail can be held only by the holding hole. For this reason, when the worker carries the connected body of nails or loads the connected body of nails into the nailing machine, the nails do not come off from the nail holding portion, and when the nail loaded into the nailing machine is driven. The defect is eliminated. Further, by providing a corner portion in the holding hole and providing a thin portion extending from the corner portion toward the outer edge of the nail holding portion in the nail holding portion, the trunk portion is held in the holding hole. If a load is applied to the nail when driving the nail with a nailing machine, cracks are likely to occur at the corners of the holding holes in the portion connected to the thin portion due to stress concentration at the corners of the holding holes, and further at the corners. The generated crack is likely to spread along the thin portion. As a result, the nail holding portion is easily broken along the thin portion when driving the nail. Then, the nail holding portion after being broken is easily bent by a position facing the corner portion of the opening edge of the holding hole and a cutout provided at a lateral outer edge of the nail holding portion. Therefore, the load required for the nailing machine is reduced to push the gap of the fractured portion to the extent that the body of the nail can pass through, and the nail can be easily detached from the connector.

【図面の簡単な説明】【図１】第１の実施の形態の釘の連結体の形状を示す斜
視図である。【図２】釘の先端側で釘の胴部を保持する釘保持部の形
状を示す平面図である。【図３】釘の頭部側で釘の胴部を保持する釘保持部の形
状を示す平面図である。【図４】第２の実施の形態の釘の連結体の形状を示す平
面図である。【図５】従来の釘の連結体の形状を示す斜視図である。【符号の説明】１連結体２ベルト体３、１１釘保持部４釘４ａ頭部４ｂ胴部４ｃ先端５、１２保持孔５ａ角部６、１３肉薄部１７ａ、１７ｂ切欠部BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a shape of a nail connector according to a first embodiment. FIG. 2 is a plan view showing a shape of a nail holding portion that holds a body portion of the nail at a tip end side of the nail. FIG. 3 is a plan view showing a shape of a nail holding portion that holds a body portion of the nail on the head side of the nail. FIG. 4 is a plan view showing a shape of a connected body of nails according to a second embodiment. FIG. 5 is a perspective view showing the shape of a conventional nail connector. [Description of Signs] 1 Connecting body 2 Belt body 3, 11 Nail holding part 4 Nail 4a Head 4b Trunk part 4c Tip 5, 12 Holding hole 5a Corner part 6, 13 Thin part 17a, 17b Notch

Claims

(57) [Claims] A pair of nail holding parts for holding the nail body at the head side of the nail and the tip side of the nail may be continuously provided on both longitudinal edges of the long belt body. In the flexible nail connector, the nail holding portion is provided with a holding hole for holding a body portion of the nail, and the distal end side holding portion has
The holding hole is formed so as to partially press and hold the body of the nail, and is provided so as to cause stress concentration when a load is applied to the held nail.
(3) A nail connector according to (1), wherein a thin portion extending toward an outer edge of the nail holding portion is provided, and the thin portion can be broken by the stress concentration.