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A platform for research: civil engineering, architecture and urbanism
HOLE DRILLING BIT FOR DECK PLATE, AND HOLE DRILLING METHOD THROUGH DECK PLATE
PROBLEM TO BE SOLVED: To provide a hole drilling bit that enhances ease of drilling, reduces costs, and curtails cutting time and reduces labor significantly, the hole drilling bit being compact and of a simple structure that enhances portability and ease of handling.SOLUTION: A hole drilling bit for a deck plate includes: one shaft part 2 having an upper member 2u on an upper side and a lower member 2d on a lower side, the upper member being held by a chuck part Hc of a power hammer H and the lower member having a protruded part 2ds formed at a lower edge; and a pair of right and left blade parts 3p, 3q formed integrally by plate members Pm, Pme having at least partially triangular surface parts 3ps, 3qs formed on the lower member 2d to protrude on both right and left sides of the lower member 2d, having protrusions 3pd, 3qd formed at a lower end and disposing the 3pd, 3qd at the lower end close to the protruded part 2ds of the lower member 2d, the triangular surface part becoming wider toward the upper side.SELECTED DRAWING: Figure 1
【課題】 実施の容易性及び低コスト性を高めるとともに、切断時間の大幅な短縮と大幅な労力軽減を実現し、また、単純構造かつ小型形状にして携帯性及び取扱性を高める。【解決手段】 動力ハンマＨのチャック部Ｈｃに保持されるアッパ部位２ｕを上側に有し、かつ下端に尖形部２ｄｓを形成したロア部位２ｄを下側に有する一本のシャフト部２と、ロア部位２ｄに設け、かつこのロア部位２ｄの左右両側に突出するとともに、下端部３ｐｄ，３ｑｄを尖形に形成し、当該下端部３ｐｄ，３ｑｄをロア部位２ｄにおける尖形部２ｄｓ近傍に配することにより、上側へ行くに従って漸次広幅となる三角面状部３ｐｓ，３ｑｓを少なくとも一部に有するプレート材Ｐｍ，Ｐｍｅにより形成した左右一対のブレード部３ｐ，３ｑとを一体に設ける。【選択図】 図１
HOLE DRILLING BIT FOR DECK PLATE, AND HOLE DRILLING METHOD THROUGH DECK PLATE
PROBLEM TO BE SOLVED: To provide a hole drilling bit that enhances ease of drilling, reduces costs, and curtails cutting time and reduces labor significantly, the hole drilling bit being compact and of a simple structure that enhances portability and ease of handling.SOLUTION: A hole drilling bit for a deck plate includes: one shaft part 2 having an upper member 2u on an upper side and a lower member 2d on a lower side, the upper member being held by a chuck part Hc of a power hammer H and the lower member having a protruded part 2ds formed at a lower edge; and a pair of right and left blade parts 3p, 3q formed integrally by plate members Pm, Pme having at least partially triangular surface parts 3ps, 3qs formed on the lower member 2d to protrude on both right and left sides of the lower member 2d, having protrusions 3pd, 3qd formed at a lower end and disposing the 3pd, 3qd at the lower end close to the protruded part 2ds of the lower member 2d, the triangular surface part becoming wider toward the upper side.SELECTED DRAWING: Figure 1
【課題】 実施の容易性及び低コスト性を高めるとともに、切断時間の大幅な短縮と大幅な労力軽減を実現し、また、単純構造かつ小型形状にして携帯性及び取扱性を高める。【解決手段】 動力ハンマＨのチャック部Ｈｃに保持されるアッパ部位２ｕを上側に有し、かつ下端に尖形部２ｄｓを形成したロア部位２ｄを下側に有する一本のシャフト部２と、ロア部位２ｄに設け、かつこのロア部位２ｄの左右両側に突出するとともに、下端部３ｐｄ，３ｑｄを尖形に形成し、当該下端部３ｐｄ，３ｑｄをロア部位２ｄにおける尖形部２ｄｓ近傍に配することにより、上側へ行くに従って漸次広幅となる三角面状部３ｐｓ，３ｑｓを少なくとも一部に有するプレート材Ｐｍ，Ｐｍｅにより形成した左右一対のブレード部３ｐ，３ｑとを一体に設ける。【選択図】 図１
HOLE DRILLING BIT FOR DECK PLATE, AND HOLE DRILLING METHOD THROUGH DECK PLATE
デッキプレート用穴空けビット及びデッキプレートの穴空け方法
TOKUNAGA TOSHIRO (author)
2016-05-16
Patent
Electronic Resource
Japanese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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