JPH0432489Y2 - - Google Patents

Description

【考案の詳細な説明】 （産業上の利用分野） この考案は発泡コンクリートのような弾性の少
ない基材に対して、引抜きに対する保持力が強
く、かつ、打込み後、釘頭部に軸方向に直角な力
を作用させることにより容易に頭部を離脱させる
ことができる特殊釘に関する。[Detailed explanation of the invention] (Industrial application field) This invention has a strong holding force against pull-out for base materials with low elasticity such as foamed concrete, and also has a strong hold on the nail head in the axial direction after driving. This invention relates to a special nail whose head can be easily removed by applying a right-angled force.

（従来の技術） 従来、発泡コンクリートのような弾性の少ない
基材に対して、引抜きに対する保持力の強い釘と
しては、釘脚体が複数本に分割され、打込み後複
数本の脚体が先端側で互いに開いた状態で保持さ
れるような構成のもの、または、脚体が角軸で、
軸側面にほぼ全長にわたつてテーパを付けた構成
としたものが使用されていた。(Prior art) Conventionally, nails with strong holding power against pull-out for base materials with low elasticity, such as foamed concrete, have been divided into multiple nail legs, and after driving, the nail legs are separated from each other at the tip. Those configured so that they are held open from each other at the sides, or whose legs are square shafts,
The shaft side was tapered over almost the entire length.

（考案が解決しようとする問題点） しかし、上記従来の釘はいずれにせよ、弾性の
少ない基材に対して強い保持力を確保するために
は、基材に打込まれる脚体の長さが必要となり、
短かい脚体ではほとんどその効果を有しない。一
方、打込み完了後、補修等の都合により釘を除去
する必要が生じた場合で、釘頭部の上方部に引抜
きに対する障害があるため、軸方向の力を加えて
引抜くことが困難な場合は、頭部の横方向から釘
軸に対し直角な力を加えることにより、釘を無理
に曲げながら除去し、釘によつて留められていた
不要部材を取り除くことがある。しかるに、上記
従来の釘は、保持力の必要性から脚体を短かい構
成とはできず、長くせざるを得ないため、打込ま
れた釘を頭部に釘軸に対し直角な力を加えること
だけで除去しようとしても頭部近くの釘軸がまげ
られるだけでそれ以上の引抜き又は除去は不能と
なり釘頭部の上方部の障害物を取り除いて軸方向
の引抜き力を加えない限り、不要部材の除去がで
きないという欠点を有していた。(Problem that the invention aims to solve) However, in any case, in order to ensure strong holding force against base materials with little elasticity, the length of the leg body driven into the base material must be is required,
Short legs have almost no effect. On the other hand, if it is necessary to remove the nail after completion of driving for repair or other reasons, and it is difficult to pull it out by applying axial force because there is an obstacle to pulling it out above the nail head. By applying force perpendicular to the nail axis from the lateral direction of the head, the nail is removed while being forcibly bent, and unnecessary parts held by the nail are sometimes removed. However, the conventional nails mentioned above cannot have short legs due to the need for holding force, and have to be made long. If you try to remove the nail by just applying it, it will only bend the nail shaft near the head, making it impossible to pull it out or remove it any further, unless you remove the obstruction above the nail head and apply a pulling force in the axial direction. This had the disadvantage that unnecessary parts could not be removed.

この考案は、従来の釘がもつ以上の欠点を取り
除いた、引抜きに対する保持力が強く、かつ、打
込み後釘頭部に軸方向に直角な力を作用させるこ
とにより容易に頭部を離脱させることができる特
殊釘を提供することを目的とする。 This design eliminates the drawbacks of conventional nails, has a strong holding force against pulling out, and allows the head to be easily removed by applying a force perpendicular to the axial direction to the nail head after driving. The purpose is to provide special nails that can.

（問題点を解決するための手段） この技術的課題を解決する本考案の技術的手段
は、弾性を有するパイプ体で構成されかつ基部側
を頂点とする錐状窪み２が基部側から先端に亘つ
て形成された脚体１と、頭部５と軸部６とを有す
る頭部体４とを備え、頭部体４の軸部６外周に、
環状の切欠凹部７が周方向に設けられ、軸部６の
切欠凹部７より頭部５側は脚体１の基部内径より
大径の大径部８とされ、軸部６の切欠凹部７より
先端側は脚体１の基部内径と略同一径の小径部９
とされ、脚体１の基部側端面が大径部８の切欠凹
部７側の端面に環状に接当するように、前記脚体
１の基部が頭部体４の小径部９に外嵌固着されて
いる点にある。(Means for Solving the Problem) The technical means of the present invention for solving this technical problem is that the conical depression 2 is formed of an elastic pipe body and has the apex at the base side, extending from the base side to the tip. The head body 4 has a leg body 1 formed over the entire length, a head body 5 and a shaft part 6, and on the outer periphery of the shaft part 6 of the head body 4,
An annular notch recess 7 is provided in the circumferential direction, and a large diameter portion 8 on the side of the head 5 from the notch recess 7 of the shaft 6 has a larger diameter than the inner diameter of the base of the leg 1; The tip side has a small diameter portion 9 having approximately the same diameter as the base inner diameter of the leg body 1.
The base of the leg 1 is externally fitted and fixed to the small diameter portion 9 of the head body 4 so that the end surface of the base of the leg 1 contacts the end surface of the large diameter portion 8 on the notch recess 7 side in an annular manner. It is in the point that it is.

（作用） この釘は脚体１が、基部側を頂点とする錐状窪
み２を有するパイプ体のため、発泡コンクリート
のような弾性の少ない基材に打込まれた場合、基
材が錐状窪みに圧縮されて挟持されることと、パ
イプ体により構成した脚体１の弾性効果により強
い保持力が得られる。打込み後、釘の除去が必要
となつた場合において、軸方向に引抜きが不可能
な状態下で、頭部５に軸方向に直角に作用する力
を加えることにより、頭部体４の軸部６は円周方
向に切欠凹部７を有するため、その切欠凹部７よ
り曲げられ、さらに、脚体１を受けている軸部６
と脚体１とのてこの作用により破断が起こり、頭
部体４が離脱する。打込みに際しては、脚体１の
基部側端面が切欠凹部７より頭部５側の大径部８
の切欠凹部７側の端面に圧接して、ここで受けら
れているため、打込時に作用する力は切欠凹部７
には影響を与えず支障なく打込める。(Function) The leg 1 of this nail is a pipe body with a conical depression 2 with the apex at the base side, so when it is driven into a base material with low elasticity such as foamed concrete, the base material becomes conical. A strong holding force can be obtained by being compressed and held in the recess and by the elastic effect of the leg body 1 made of a pipe body. When it becomes necessary to remove the nail after driving, the shank of the head body 4 can be removed by applying a force acting perpendicularly to the axial direction on the head 5 under conditions in which it is impossible to pull out the nail in the axial direction. 6 has a notched recess 7 in the circumferential direction, and is bent from the notched recess 7, and furthermore, the shaft 6 that receives the leg 1
A break occurs due to the lever action between the head body 4 and the leg body 1, and the head body 4 is separated. When driving, the base side end surface of the leg 1 is located at the large diameter portion 8 closer to the head 5 than the notch recess 7.
Since it is in pressure contact with the end face on the notch recess 7 side and is received there, the force that acts during driving is applied to the notch recess 7.
It can be typed without any problem without affecting.

従つて、例えば第３図乃至第４図に示すように
この特殊釘を平瓦１１を止めるための瓦釘の用途
として便利に使用できる。即ち、第３図乃至第５
図は屋根に順次積重ねるように配置した多数の五
角形状の平瓦１１を本考案の特殊釘を利用して止
めている場合において、そのうちの破損した平瓦
１１ａを取換える際の作業工程を示している。ま
ず第３図に示す如く細長い平板状の工具１２の先
端部１３側を平瓦１１ａの下側に差し込み、平瓦
１１ａを止めた特殊釘を工具１２の先端部１３で
数回突き上げて浮かせる。さらに第４図に示す如
く工具１２を破損した平瓦１１の上側に差しか
え、浮いた釘の頭部５を工具１２の先端部１３で
引つ掛け、この状態で工具１２を手前に張り、或
いは工具１２の基部側の断部１４を矢印ａで示す
如くハンマー等で叩いて、頭部体４を抜き取る。
そして、その後は破損した平瓦１１ａを屋根から
抜き取り、第５図に示す如く新しい平瓦１１ｂを
差し込めばよいのである。なお、新しい平瓦１１
ｂはその下面に塗布した接着剤１５等によつて接
着すればよい。 Therefore, for example, as shown in FIGS. 3 and 4, this special nail can be conveniently used as a tile nail for fixing flat roof tiles 11. That is, Figures 3 to 5
The figure shows the work process for replacing a damaged flat tile 11a when a large number of pentagonal flat tiles 11 arranged in a stacked manner on a roof are fastened using the special nails of the present invention. It shows. First, as shown in FIG. 3, the tip 13 side of an elongated flat tool 12 is inserted under the flat tile 11a, and the special nail holding the flat tile 11a is pushed up several times with the tip 13 of the tool 12 to float it. Furthermore, as shown in FIG. 4, place the tool 12 above the damaged flat tile 11, hook the floating nail head 5 with the tip 13 of the tool 12, and in this state tension the tool 12 toward you. Alternatively, the head body 4 is removed by hitting the cut portion 14 on the base side of the tool 12 with a hammer or the like as shown by arrow a.
After that, all that is required is to remove the damaged flat tile 11a from the roof and insert a new flat tile 11b as shown in FIG. In addition, new flat tiles 11
b may be adhered with adhesive 15 or the like applied to its lower surface.

（実施例） 以下、本考案を図示の実施例に従つて説明する
と、第１図及び第２図において、１は脚体で、弾
性を有するパイプ体で構成され、基部側を頂点と
する錐状窪み２が基部側から先端に亘つて折曲形
成されている。(Embodiment) The present invention will be described below according to the illustrated embodiment. In FIGS. 1 and 2, 1 is a leg body, which is a cone made of an elastic pipe body, and whose apex is on the base side. A shaped depression 2 is formed by bending from the base side to the tip end.

４は頭部５と軸部６とを有する頭部体で、軸部
６外周には環状の切欠凹部７が周方向に設けられ
ている。軸部６の切欠凹部７より頭部４側は脚体
１の基部内径より大径の大径部８とされ、軸部６
の切欠凹部７より先端側は脚体１の基部内径と略
同一径の小径部９とされている。 Reference numeral 4 denotes a head body having a head 5 and a shaft portion 6, and an annular notch recess 7 is provided on the outer periphery of the shaft portion 6 in the circumferential direction. The side of the head 4 from the notch recess 7 of the shaft 6 is a large diameter portion 8 that has a larger diameter than the inner diameter of the base of the leg 1.
The distal end side of the notched recess 7 is a small diameter portion 9 having approximately the same diameter as the inner diameter of the base portion of the leg body 1 .

前記脚体１の基部は頭部体４の小径部９に外嵌
され、脚体１の基部側端面が大径部８の切欠凹部
７側の端面に環状に接当した状態で、脚体１の基
部と小径部９とはかしめ、溶接、ろう付け等によ
つて互いに固着されている。 The base portion of the leg body 1 is fitted onto the small diameter portion 9 of the head body 4, and the leg body The base portion 1 and the small diameter portion 9 are fixed to each other by caulking, welding, brazing, or the like.

（考案の効果） この考案に係る特殊釘は、発泡コンクリートの
ような弾性の少ない基材に対して、打込むだけで
強い保持力を有すると共に、打込み完了後、補修
等の都合により釘を除去する必要が生じ、しか
も、頭部５の上方部に引抜きに対する障害物があ
るために軸方向の力を加えて引抜くことが困難な
場合では、頭部５に横方向から釘軸に対して直角
な力を加えることにより容易に頭部体４を切欠凹
部７で切断して脚体１及び基材から離脱させるこ
とができる。したがつて、頭部５の上方部に存す
る必要物体を破壊させずして不要部材を取り除く
ことができるという効果をもたらす。(Effects of the invention) The special nail according to this invention has a strong holding power just by driving it into a base material with low elasticity such as foam concrete, and the nail can be removed for repairs etc. after driving is completed. If it becomes necessary to pull out the nail by applying force in the axial direction because there is an obstacle in the upper part of the head 5, it is difficult to pull it out by applying force in the axial direction. By applying a right-angled force, the head body 4 can be easily cut at the notch recess 7 and separated from the leg body 1 and the base material. Therefore, it is possible to remove unnecessary members without destroying the necessary objects present above the head 5.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図及び第２図は本考案の一実施例を示し、
第１図は斜視図、第２図は側断面図である。第３
図乃至第５図は具体的な使用例及びその作用説明
用の斜視図である。 １……脚体、２……錐状窪み、４……頭部体、
５……頭部、６……軸部、７……切欠凹部、８…
…大径部、９……小径部。 1 and 2 show an embodiment of the present invention,
FIG. 1 is a perspective view, and FIG. 2 is a side sectional view. Third
Figures 5 through 5 are perspective views for explaining specific usage examples and their effects. 1... Leg body, 2... Cone-shaped depression, 4... Head body,
5...Head, 6...Shaft, 7...Notch recess, 8...
...Large diameter part, 9...Small diameter part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 弾性を有するパイプ体で構成されかつ基部側を
頂点とする錐状窪み２が基部側から先端に亘つて
形成された脚体１と、頭部５と軸部６とを有する
頭部体４とを備え、頭部体４の軸部６外周に、環
状の切欠凹部７が周方向に設けられ、軸部６の切
欠凹部７より頭部５側は脚体１の基部内径より大
径の大径部８とされ、軸部６の切欠凹部７より先
端側は脚体１の基部内径と略同一径の小径部９と
され、脚体１の基部側端面が大径部８の切欠凹部
７側の端面に環状に接当するように、前記脚体１
の基部が頭部体４の小径部９に外嵌固着されてい
ることを特徴とする特殊釘。 A leg body 1 made of an elastic pipe body and having a conical recess 2 with the apex at the base side formed from the base side to the tip, and a head body 4 having a head portion 5 and a shaft portion 6. An annular notch recess 7 is provided in the circumferential direction on the outer periphery of the shaft 6 of the head body 4, and a portion of the shaft 6 closer to the head 5 than the notch recess 7 has a diameter larger than the inner diameter of the base of the leg 1. The distal end side of the notch recess 7 of the shaft portion 6 is a small diameter portion 9 having approximately the same diameter as the base inner diameter of the leg body 1, and the end surface of the base side of the leg body 1 is a notch recess 7 of the large diameter portion 8. The leg body 1 is placed in annular contact with the side end surface.
A special nail characterized in that the base of the nail is externally fitted and fixed to the small diameter part 9 of the head body 4.