JPH0932826A - Set screw for construction board - Google Patents
Set screw for construction boardInfo
- Publication number
- JPH0932826A JPH0932826A JP18547395A JP18547395A JPH0932826A JP H0932826 A JPH0932826 A JP H0932826A JP 18547395 A JP18547395 A JP 18547395A JP 18547395 A JP18547395 A JP 18547395A JP H0932826 A JPH0932826 A JP H0932826A
- Authority
- JP
- Japan
- Prior art keywords
- set screw
- thread
- board
- tip
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Dowels (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、石膏ボード、抄造繊維
石膏ボード、石膏繊維板、ケイ酸カルシューム板等の各
種建築用ボードを下地面に固定したり、重ねたボード同
志を固定するのに用いられる止め螺子に関する。BACKGROUND OF THE INVENTION The present invention is for fixing various building boards such as gypsum board, papermaking fiber gypsum board, gypsum fiber board, calcium silicate board, etc. to the base surface or fixing the stacked boards. Regarding the set screw used.
【0002】[0002]
【従来の技術】石膏ボードを例に取ると、これは防火
性、遮音性及び施工性等の観点から内装材として盛んに
使用されている。石膏ボードの下地面への取り付けは止
め螺子を用いて行われるのが一般的であり、又ボードの
積層を強固に一体化するのにも止め螺子が用いられる。
内装の仕上げが石膏ボードの上から施されるクロス貼り
やペンキ塗りにより行われるために、止め螺子はその頭
が石膏ボードの表面よりも幾分引っ込む程にねじ込ま
れ、引っ込んだ個所に石膏パテを塗ってボードの表面が
平滑に処理されるのが普通である。2. Description of the Related Art Taking a gypsum board as an example, it is widely used as an interior material from the viewpoint of fireproofness, sound insulation and workability. The gypsum board is generally attached to the ground surface by using a set screw, and the set screw is also used to firmly integrate the laminated board.
Since the interior finish is done by applying cloth or painting on the gypsum board, the set screw is screwed in so that its head retracts somewhat from the surface of the gypsum board, and the plaster putty is put in the recessed part. The surface of the board is usually smoothed by painting.
【0003】[0003]
【発明が解決しようとする問題点】止め螺子を石膏ボー
ドにねじ込むと、止め螺子の螺施ネジ山の作用で石膏ボ
ードのコアをなす石膏がキリ粉として止め螺子の進入方
向と反対方向に移動され、つまり、せり上げられ、ボー
ド面を構成する表面材の盛り上がりや毛羽立ちを生じさ
せる欠点があった。通常、パテによる平滑処理に先立っ
て、このような盛り上がり部分や毛羽立ちを取り除く必
要があった。他のボードについても、在来の止め螺子を
使用する限り、同様な問題があった。本発明の目的は、
ボードの表面材の盛り上がりや毛羽立ちを生じさせるこ
となく、止め螺子の頭をボードの表面と面一になるよう
に具合良くねじ込むことができる建築用ボードの止め螺
子を提供することにある。[Problems to be Solved by the Invention] When the set screw is screwed into the gypsum board, the plaster forming the core of the gypsum board moves in the direction opposite to the entering direction of the set screw as milling powder due to the action of the screw thread of the set screw. That is, there is a drawback in that the surface material that is lifted up causes swelling and fluffing of the surface material that constitutes the board surface. Usually, it was necessary to remove such raised portions and fluff before the smoothing treatment with putty. Other boards had similar problems as long as they used conventional setscrews. The purpose of the present invention is
An object of the present invention is to provide a set screw for a construction board, which can be screwed in properly so that the head of the set screw is flush with the surface of the board without causing swelling or fluffing of the surface material of the board.
【0004】[0004]
【問題点を解決するための手段】この目的は、ネジ山付
部分と、頭とを有する止め螺子において、ネジ山付部分
の先端には、ボードの表面材へ切り込み且つこれを削り
取る切削部が形成され、頭の下部分をネジ山付部分に向
かう円錐形としこの円錐形部分に複数刃を形成し、頭に
はその円錐形部分と頭の周囲との間に平らな環状押さえ
面を形成してなることを特徴とする建築用ボードの止め
螺子を提供することによって達成される。止め螺子はそ
の先端に、ボードの表面材へ切り込み且つこれを削り取
るようになった角錐部が形成される。別の例では、止め
螺子の先端に円錐部が形成され、該円錐部には、ボード
の表面材へ切り込み且つこれを削り取るように構成され
た刃が形成される。その刃には単なる突起状のものも含
み、表面材を削り取れれば良い。さらに別の例では、ネ
ジ山が止め螺子の先端まで続き、該先端部には、ボード
の表面材へ切り込み且つこれを削り取るように取るよう
になった刃を構成する切欠き部が形成される。The object of the present invention is to provide a set screw having a threaded portion and a head, and at the tip of the threaded portion, a cutting portion for cutting into the surface material of the board and scraping it off. Formed, the lower part of the head is conical towards the threaded part and multiple blades are formed in this conical part, and the head has a flat annular pressing surface between the conical part and the periphery of the head It is achieved by providing a set screw for a construction board, characterized in that The set screw has a pyramid portion formed at the tip thereof so as to be cut into the surface material of the board and scraped off. In another example, a conical portion is formed at the tip of the set screw, and the conical portion is formed with a blade configured to cut into and scrape the surface material of the board. The blade may include a simple protrusion, and the surface material may be scraped off. In yet another example, the threads continue to the tip of the set screw, where the tip is formed with a notch that constitutes a blade adapted to cut into and scrape the surface material of the board. .
【0005】尚、切欠き部の位置は、先端部及び/又は
主ネジ山付部分でよい。また、切欠き部は切削部の先端
部から必ずしも切欠くことはなく、先端から少なくとも
1mm離して切欠くことにより、最突端の強度低下をきた
さず、石膏ボード面さらには該ボードを止めつける下地
材へのくい込みがよく、切欠きによる強度低下は螺子の
進入の弊害にはならない。ネジ山付部は、その形成が切
削部又はその先端のどちらから始まってもよく、これよ
り頭下の円錐部まで設けられた主ネジ山だけでもよい。
さらに、ネジ山付部は、頭下の円錐部と主ネジ山との間
に、主ネジ山のピッチより小さいピッチの副ネジ山を設
けることができる。即ち、副ネジ山の螺施状の傾斜は主
ネジ山の傾斜より小さくなる。また、該副ネジ山を二条
ネジ山にすることができ、さらにまた、副ネジ山の傾斜
を主ネジ山の傾斜と同じにし且つ二条ネジ山とすること
ができる。以上のいずれかにすることにより、螺子が石
膏ボードへ進入するときに、副ネジ山は主ネジ山による
表面材と石膏のせり上りを押さえ、表面材等が頭下の円
錐部にある複数の刃に有効に当たるようになり、切削効
果をより高め、表面材の盛り上がりは抑制されることに
なる。The position of the notch may be the tip and / or the portion with the main screw thread. Further, the cutout portion is not necessarily cut out from the tip of the cutting portion, and at least from the tip.
By notching at a distance of 1 mm, the strength at the most apex is not lowered, and the plaster board surface and further the base material for fixing the board are well bited, and the strength reduction due to the notch does not hinder the penetration of the screw. The threaded portion may be formed from either the cutting portion or the tip thereof, and may be only the main thread provided up to the conical portion below this.
Further, the threaded portion can be provided with a sub-thread having a pitch smaller than the pitch of the main thread between the conical portion below the head and the main thread. That is, the thread-like inclination of the auxiliary thread is smaller than the inclination of the main thread. Further, the sub-thread can be a double thread, and further, the inclination of the sub-thread can be the same as the inclination of the main thread and can be a double thread. By doing either of the above, when the screw enters the gypsum board, the sub-thread suppresses the surface material and plaster from rising due to the main thread, and the surface material, etc. The blade is effectively hit, the cutting effect is further enhanced, and the swelling of the surface material is suppressed.
【0006】また、ネジ山付部分を、頭下の円錐部と主
ネジ山との間に主ネジ山の径より小さい径をなすネジ山
の無い胴部のみを設けた構成とすることができる。こう
することにより、主ネジ山でせり上る石膏は胴部の周囲
の空間に入り、表面材の盛り上がりは一層抑制される。
そしてさらに、主ネジ山を二条ネジ山にすることができ
る。尚、主ネジ山が一条ネジ山のときは木下地やボード
類同志の止め付けの保持力向上に効果があるが、下地が
鋼製のときは、主ネジ山を二条ネジ山とすることによ
り、螺子によるボードの鋼材への留め付け作業はより容
易になる効果がある。Further, the threaded portion may be configured such that only a body portion having no thread having a diameter smaller than the diameter of the main thread is provided between the conical portion below the head and the main thread. . By doing so, the gypsum rising by the main screw thread enters the space around the body, and the rise of the surface material is further suppressed.
Furthermore, the main thread can be a double thread. It should be noted that when the main screw thread is a single thread, it is effective in improving the holding force of the wood base and the board and the like, but when the base is made of steel, the main thread is a double thread. There is an effect that the work of fastening the board to the steel material with the screw becomes easier.
【0007】[0007]
【作用】石膏ボードを下地面に固定するに当たって、本
発明による止め螺子をドライバーを使って石膏ボードに
ねじ込むと、最初に先端のキリ状の刃により石膏ボード
の表面材料へ切り込んで該材料を粉状に削り取り、次い
で、石膏ボードの芯に進入して、通常の如く主ネジ山は
コアを構成する石膏の中を進む。この際、その部分の石
膏はキリ粉としてネジ山の石膏への進入方向と反対方向
に移動され、その結果、石膏ボードの表面より徐々にキ
リ粉が排出されるが、表面材は一部の石膏のキリ粉の外
部への放出を依然として押さえ続ける。螺子の石膏ボー
ドへの更なる進入により主ネジ山によりせり上がる石膏
を主ネジ山のピッチより小さい副ネジ山が押さえるか、
副ネジ山のところがネジ山の無い主ネジ山の径より小さ
い胴部のみであれば、主ネジ山よりせり上がる石膏は胴
部の周囲の空間に入る。この際、いずれも石膏のせり上
げを少なくし、せり上がる石膏は頭下の円錐部にある刃
に有効に確実に当たるようになり、その刃はせり上がる
石膏を切削せしめ、そして、表面材の盛り上げを抑制す
る。次いで、頭の円錐部分はその刃が螺子のねじ込み回
転により表面材及びその下の石膏を削り落しながら、残
りの表面材及び石膏をボード内に押し込むが、それでも
切り残りの表面材部分は、頭の平らな押さえ面でボード
上に押さえられる。When the gypsum board is fixed to the ground surface, the set screw according to the present invention is screwed into the gypsum board using a screwdriver. First, the tip-shaped blade cuts into the surface material of the gypsum board to powder the material. It is then scraped off, then enters the core of the gypsum board, and the lead screw threads through the gypsum that makes up the core, as usual. At this time, the gypsum of that part is moved as a milling powder in the direction opposite to the direction of entry of the screw thread into the gypsum, and as a result, the milling powder is gradually discharged from the surface of the gypsum board, but the surface material is partially The release of gypsum powder from the outside continues to be suppressed. Whether the sub-thread smaller than the pitch of the main screw holds down the plaster rising by the main screw as the screw further enters the gypsum board,
If the sub-thread is only the body that is smaller than the diameter of the main thread without the thread, the gypsum rising from the main thread enters the space around the body. At this time, in each case, the plaster rise is reduced, and the rising plaster effectively hits the blade in the conical portion below the head effectively, and the blade causes the rising plaster to be cut, and the surface material is raised. Suppress. Then, the conical part of the head pushes the rest of the surface material and plaster into the board while the blade scrapes off the surface material and the plaster underneath by the screwing rotation of the screw, but the remaining surface material part is still cut. It is pressed on the board by the flat pressing surface of.
【0008】[0008]
【実施例】図1を参照すると、本発明による止め螺子
は、ネジ山付部分1と、ドライバーのための十字溝を上
面に備えた頭2とを有する。ネジ山付部分1は、止め螺
子の石膏ボードの表面材への切り込みを容易にするため
に、止め螺子の先端に切削部3である角錐部3Aを備え
る。角錐部3Aは三角錐乃至八角錐のものでよいが、図
示のように、四角錐であるのが好ましい。ネジ山付部分
1は、この角錐部3Aから形成されている主ネジ山4
と、該主ネジ山4の終りと頭2との間に形成された副ネ
ジ山5とからなる。副ネジ山5は二条ネジとなってお
り、副ネジ山5の長さは主ネジ山の長さのほぼ1/4程
度であるのが好ましい。また、該二条ネジ山の一方のネ
ジ山のピッチは主ネジ山のピッチと同じであり、二条ネ
ジ山の他方のネジ山は前記一方のネジ山間の中央に形成
される。副ネジ山と主ネジ山の高さは両方とも等しい。DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, a set screw according to the invention has a threaded portion 1 and a head 2 with a cross groove for the driver on its upper surface. The threaded portion 1 includes a pyramidal portion 3A, which is a cutting portion 3, at the tip of the set screw in order to facilitate cutting of the set screw into the surface material of the gypsum board. The pyramidal portion 3A may be a triangular pyramid or an octagonal pyramid, but as shown, it is preferably a quadrangular pyramid. The threaded portion 1 is a main thread 4 formed from the pyramid portion 3A.
And a sub-thread 5 formed between the end of the main thread 4 and the head 2. The sub-thread 5 is a double thread, and the length of the sub-thread 5 is preferably about 1/4 of the length of the main thread. The pitch of one thread of the double thread is the same as the pitch of the main thread, and the other thread of the double thread is formed in the center between the one thread. The heights of the secondary and primary threads are equal.
【0009】頭2の下部分をネジ山付部分に向かう円錐
形としこの円錐形部分6には、その円錐面に沿って複数
の刃7が形成され、又、頭には、その円錐形部分6と頭
の周囲との間に平らな環状押さえ面8が形成される。ネ
ジ山の径は下地材の種類によって異なるが、3.5 mm乃至
5.5 mm である。円錐形部分6の円錐角度は40°乃至
100°、好ましくは60°乃至90°であり、40°
以下ではキリ粉等を押し込み難く、又100°以上では
刃によるボード材料の削り落しが容易でなく、頭がボー
ドに入り込み難い。刃7は高さが0.1mm乃至 1 mm であ
り、その数は少なくとも2つであるが、図示した実施例
では、図2で分かるように、12個である。環状押さえ
面8は幅が 0.2 mm 乃至 1mm 、好ましくは最適な押え
込みを果たすために 0.5 mm である。The lower part of the head 2 is conical towards the threaded part, this conical part 6 being provided with a plurality of blades 7 along its conical surface and the head being conical part thereof. A flat annular holding surface 8 is formed between 6 and the periphery of the head. The diameter of the screw thread varies depending on the type of base material, but 3.5 mm to
It is 5.5 mm. The cone angle of the conical portion 6 is between 40 ° and 100 °, preferably between 60 ° and 90 °, 40 °
If it is below, it is difficult to push in dust and the like, and if it is 100 ° or more, it is not easy to scrape off the board material with a blade, and the head is difficult to get into the board. The blades 7 have a height of 0.1 mm to 1 mm, the number of which is at least two, but in the illustrated embodiment it is twelve, as can be seen in FIG. The annular holding surface 8 has a width of 0.2 mm to 1 mm, preferably 0.5 mm for optimum holding.
【0010】本発明による止め螺子をドライバーを使っ
て石膏ボードにねじ込んで下地面に進入させ、これによ
って石膏ボードを下地面に固定する。この際、角錐部3
Aが先ず石膏ボードの表面材へ切り込んでこれを粉状に
削り取り、かくして、表面材の毛羽立ちを抑制すると共
に主ネジ山4の石膏ボードの表面材へのねじ込みを容易
にする。主ネジ山4はかかるねじ込みによりボードに進
入して、コアを構成する石膏の中を進む。主ネジ山4の
ねじ込み回転により、その部分の石膏はキリ粉となって
ネジ山の石膏への進入方向と反対方向に移動され、キリ
粉は外部へ放出されるが、一部のキリ粉が石膏ボードの
表面材を徐々に盛り上げる。しかし、副ネジ山5がボー
ドの盛り上がり部分に達し、螺子の石膏ボードへの更な
る進入により副ネジ山5は石膏ボードにねじ込まれる。
この際、副ネジ山は、盛り上がった表面材をそれ以上大
きくせり上がらせることがない。次いで、頭2の円錐部
6は、その刃7が螺子の回転によりリーマーとして働い
て、表面材及びその下の石膏を削り落しながら、それら
をボード内に押し込む。刃による材料の削り落しは先に
述べた円錐部分の適度な角度設定によりボードの中へ大
変円滑に入り込む。切り残りの表面材部分は、頭2がボ
ードの表面と面一になるまで止め螺子が一杯に締め付け
られたとき、頭2の平らな押さえ面8でボード上に押さ
えられ、決して螺子の頭からはみ出すことがない。The set screw according to the present invention is screwed into the gypsum board by using a screwdriver so that the gypsum board is inserted into the base surface, and thereby the gypsum board is fixed to the base surface. At this time, the pyramid part 3
First, A cuts into the surface material of the gypsum board and grinds it into powder, thus suppressing fuzzing of the surface material and facilitating screwing of the main screw thread 4 into the surface material of the gypsum board. The main thread 4 enters the board by such screwing, and advances through the plaster forming the core. When the main screw thread 4 is screwed and rotated, the gypsum in that portion becomes milled powder and is moved in the direction opposite to the direction in which the thread thread enters the plaster, and the milled powder is released to the outside, but some milled powder is released. Gradually raise the surface material of the gypsum board. However, the sub-thread 5 reaches the raised part of the board, and the sub-thread 5 is screwed into the gypsum board by the further entry of the screw into the gypsum board.
At this time, the sub-thread does not cause the raised surface material to rise further. Then, the conical portion 6 of the head 2 pushes them into the board while the blade 7 acts as a reamer by the rotation of the screw to scrape off the surface material and the plaster below it. The scraping off of the material by the blade enters into the board very smoothly by setting the proper angle of the conical portion as described above. The rest of the surfacing material is pressed onto the board by the flat retaining surface 8 of the head 2 when the set screw is fully tightened until the head 2 is flush with the surface of the board, never from the head of the screw. It does not stick out.
【0011】図3及び4は止め螺子の先端部の別の構成
の実施例を示し、この例では、止め螺子の先端に円錐部
3Bが形成され、該円錐部には、刃3Cを構成する半裁
部3Dが形成されている。さらに別の実施例を図5及び
6に示し、この例では、止め螺子の先端に円錐部3Bが
形成され、ネジ山はこの円錐部まで続き、該円錐部に
は、刃3bを構成する切欠き部3cが形成されている。
さらにまた別の実施例を図7及び8に示し、この例で
は、止め螺子の先端の、切削部に円錐部3Bが形成さ
れ、該円錐部に刃3aが複数形成されている。いずれの
実施例においても、刃がボードの表面材へ切り込み且つ
これを削り取る働きをする。図9は主ネジ山付部の他の
実施例を示し、この例では、角錐部3と主ネジ山4との
間にネジ山の無い主ネジ山の径より小さい胴部9が形成
されている。この場合、主ネジ山4でせり上がる石膏は
胴部9の周囲の空間に入り、表面材の盛り上がりは抑制
される。3 and 4 show an embodiment of another structure of the tip of the set screw. In this example, a cone 3B is formed at the tip of the set screw, and a blade 3C is formed in the cone. The half-cut portion 3D is formed. Yet another embodiment is shown in FIGS. 5 and 6, in which a conical part 3B is formed at the tip of the set screw, the thread continues to this conical part, in which conical part the blade 3b is formed. The notch 3c is formed.
Yet another embodiment is shown in FIGS. 7 and 8. In this example, a conical portion 3B is formed in the cutting portion at the tip of the set screw, and a plurality of blades 3a are formed in the conical portion. In either embodiment, the blade serves to cut into and scrape the surface material of the board. FIG. 9 shows another embodiment of the main threaded portion. In this example, a body portion 9 having no thread and smaller than the diameter of the main thread is formed between the pyramid 3 and the main thread 4. There is. In this case, the gypsum rising by the main screw thread 4 enters the space around the body 9 and the rise of the surface material is suppressed.
【0012】[0012]
【発明の効果】本発明による止め螺子は上記のように構
成され、ボードに対して上述のように作用するので、止
め螺子のボードへのねじ込み中、ボードのコアのせり上
がりを抑制して、ボード面の螺子周辺の盛り上がりや、
表面材を毛羽立たせるような不都合を悉く防止すること
ができる利点を有する。Since the set screw according to the present invention is constructed as described above and acts on the board as described above, it is possible to prevent the core of the board from rising while the set screw is screwed into the board. The swell around the screw on the board surface,
There is an advantage that it is possible to prevent the inconvenience of fluffing the surface material.
【図1】本発明による止め螺子の側面図である。FIG. 1 is a side view of a set screw according to the present invention.
【図2】図1のII−II線における拡大断面図である。FIG. 2 is an enlarged sectional view taken along line II-II of FIG.
【図3】本発明による止め螺子の先端部の別の構成を示
す部分斜視図である。FIG. 3 is a partial perspective view showing another configuration of the tip portion of the set screw according to the present invention.
【図4】図3に示す止め螺子の先端部の側面図である。FIG. 4 is a side view of a tip portion of the set screw shown in FIG.
【図5】本発明による止め螺子の先端部のさらに別の構
成を示す部分斜視図である。FIG. 5 is a partial perspective view showing still another configuration of the tip portion of the set screw according to the present invention.
【図6】図5に示す止め螺子の先端部の正面図である。FIG. 6 is a front view of a tip portion of the set screw shown in FIG.
【図7】本発明による止め螺子のさらに別の構成を示す
側面図である。FIG. 7 is a side view showing still another configuration of the set screw according to the present invention.
【図8】図7のVIII−VIII線における断面図である。FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7;
【図9】本発明による止め螺子のさらに別の構成を示す
側面図である。FIG. 9 is a side view showing still another configuration of the set screw according to the present invention.
1 ネジ山付部分 2 頭 3 切削部 4 主ネジ山 5 二条ネジ山 6 円錐部分 7 刃 8 環状押さえ面 9 胴部 1 Part with screw thread 2 Head 3 Cutting part 4 Main screw thread 5 Double thread screw 6 Conical portion 7 Blade 8 Annular pressing surface 9 Body
Claims (9)
において、ネジ山付部分の先端には、ボードの表面材へ
切り込み且つこれを削り取る切削部が形成され、頭の下
部分をネジ山付部分に向かう円錐形としこの円錐形部分
に複数刃を形成し、頭にはその円錐形部分と頭の周囲と
の間に平らな環状押さえ面を形成してなることを特徴と
する建築用ボードの止め螺子。1. A set screw having a threaded portion and a head, wherein a cutting portion which cuts into and scrapes the surface material of the board is formed at the tip of the threaded portion, and the lower portion of the head is screwed. A construction characterized by a conical shape facing the mountain portion and forming a plurality of blades on this conical portion, and forming a flat annular pressing surface on the head between the conical portion and the periphery of the head Screws for board.
し、ボードの表面材へ切り込み且つこれを削り取るよう
になっている請求項1記載の建築用ボードの止め螺子。2. The set screw for a construction board according to claim 1, wherein the cutting portion at the tip of the set screw has a pyramidal shape, and is cut into the surface material of the board and scraped off.
し、該円錐部には、ボードの表面材へ切り込み且つこれ
を削り取るように構成された刃が形成されている請求項
1記載の建築用ボードの止め螺子。3. The cutting portion at the tip of the set screw has a conical shape, and the conical portion is formed with a blade configured to cut into and scrape the surface material of the board. Set screw for building board.
端部及び/又は主ネジ山付部には、ボード表面材へ切り
込み且つこれを削り取るようになった刃を構成する切欠
き部が形成されている請求項1記載の建築用ボードの止
め螺子。4. The screw thread continues to the tip of the set screw, and the tip portion and / or the main screw threaded portion has a notch portion which constitutes a blade for cutting into and scraping the board surface material. The set screw for a building board according to claim 1, which is formed.
かれていることを特徴とする請求項4記載の建築用ボー
ドの止め螺子。5. The set screw for a building board according to claim 4, wherein the notch is notched slightly apart from the tip.
形成された主ネジ山と、該主ネジ山の終りと頭下の円錐
部との間に形成された主ネジ山のピッチより小さい副ネ
ジ山とからなることを特徴とする請求項1乃至5記載の
建築用ボードの止め螺子。6. The threaded portion is formed by a main thread formed from the cutting portion or the tip thereof and a pitch of the main thread formed between the end of the main thread and the conical portion below the head. 6. The set screw for a building board according to claim 1, wherein the set screw comprises a small auxiliary screw thread.
徴とする請求項6記載の建築用ボードの止め螺子。7. The set screw for a building board according to claim 6, wherein the auxiliary thread is a double thread.
ジ山の終りと、頭下の円錐部との間に、主ネジ山の径よ
り小さい径をなすネジ山の無い胴部を有する請求項1乃
至5記載の建築用ボードの止め螺子。8. A body without a thread having a diameter smaller than the diameter of the main thread is provided between the end of the main thread formed from the cutting portion or the tip thereof and the conical portion below the head. Item 1. A set screw for a construction board according to any one of items 1 to 5.
徴とする請求項1乃至6及び8記載の建築用ボードの止
め螺子。9. The set screw for a building board according to claim 1, wherein the main screw thread is a double thread.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18547395A JP3875989B2 (en) | 1995-07-21 | 1995-07-21 | Building board set screw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18547395A JP3875989B2 (en) | 1995-07-21 | 1995-07-21 | Building board set screw |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0932826A true JPH0932826A (en) | 1997-02-04 |
JP3875989B2 JP3875989B2 (en) | 2007-01-31 |
Family
ID=16171388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18547395A Expired - Lifetime JP3875989B2 (en) | 1995-07-21 | 1995-07-21 | Building board set screw |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3875989B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005035996A1 (en) * | 2003-10-07 | 2005-04-21 | Muro Corporation | Wood screw for building |
JP2008014344A (en) * | 2006-07-03 | 2008-01-24 | Noda Corp | Fastener |
JP2009544905A (en) * | 2006-07-26 | 2009-12-17 | エー・ヨット・オー・テー・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディート・ゲゼルシャフト | Hole forming and thread forming screws |
CN105179414A (en) * | 2015-10-23 | 2015-12-23 | 无锡市华晨标准件有限公司 | Auto-drilling-and-chambering self-tapping screw |
JP2016191441A (en) * | 2015-03-31 | 2016-11-10 | 林雅侖 | Fastening member |
CN107906104A (en) * | 2017-11-06 | 2018-04-13 | 沈大年 | A kind of self drilling tapping screw |
-
1995
- 1995-07-21 JP JP18547395A patent/JP3875989B2/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005035996A1 (en) * | 2003-10-07 | 2005-04-21 | Muro Corporation | Wood screw for building |
JP2008014344A (en) * | 2006-07-03 | 2008-01-24 | Noda Corp | Fastener |
JP4630239B2 (en) * | 2006-07-03 | 2011-02-09 | 株式会社ノダ | Fastener |
JP2009544905A (en) * | 2006-07-26 | 2009-12-17 | エー・ヨット・オー・テー・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディート・ゲゼルシャフト | Hole forming and thread forming screws |
JP2016191441A (en) * | 2015-03-31 | 2016-11-10 | 林雅侖 | Fastening member |
CN105179414A (en) * | 2015-10-23 | 2015-12-23 | 无锡市华晨标准件有限公司 | Auto-drilling-and-chambering self-tapping screw |
CN107906104A (en) * | 2017-11-06 | 2018-04-13 | 沈大年 | A kind of self drilling tapping screw |
Also Published As
Publication number | Publication date |
---|---|
JP3875989B2 (en) | 2007-01-31 |
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