A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide an openable driving nail capable of increasing restoration elastic force in a closing direction and increasing friction force occurring between a soft building material and a nail shaft, to improve pull-out strength resistance.SOLUTION: An openable driving nail 1 has a pair of nail shafts 2 whose cross section is formed into a semicircular shape, and a belt-like thin plate 3, wherein the belt-like thin plate 3 is interposed between the nail shaft 2 arrayed so that their flat surface sides 2a are opposite to each other, the nail shafts 2 and the belt-like thin plate 3 are connected by a head part 4a, and the other end side of the nail shafts 2 is a tapered surface 2d for opening. The nail shaft 2 take the shape of curving along a lengthwise direction so that the mutual flat surface sides 2a are separate at an intermediate point in the lengthwise direction.SELECTED DRAWING: Figure 1
【課題】閉脚方向への復元弾性力を増大させ、軟質建材と釘軸の間に生じる摩擦力を大きくすることで、耐引き抜き強度を向上させた開脚式打ち込み釘を提供する。【解決手段】断面半円状となる一対の釘軸２と帯状薄板３を有し、平坦面側２ａが対向するように並列させた両釘軸２間に帯状薄板３を介在させ、両釘軸２と帯状薄板３を頭部４ａで結合し、両釘軸２の他端側を開脚用のテーパ面２ｄとした開脚式打ち込み釘１において、前記両釘軸２に、互いの平坦面側２ａが長さ方向の中間部で離開するように、長さ方向に沿って湾曲するような形付けを付与した。【選択図】図１
To provide an openable driving nail capable of increasing restoration elastic force in a closing direction and increasing friction force occurring between a soft building material and a nail shaft, to improve pull-out strength resistance.SOLUTION: An openable driving nail 1 has a pair of nail shafts 2 whose cross section is formed into a semicircular shape, and a belt-like thin plate 3, wherein the belt-like thin plate 3 is interposed between the nail shaft 2 arrayed so that their flat surface sides 2a are opposite to each other, the nail shafts 2 and the belt-like thin plate 3 are connected by a head part 4a, and the other end side of the nail shafts 2 is a tapered surface 2d for opening. The nail shaft 2 take the shape of curving along a lengthwise direction so that the mutual flat surface sides 2a are separate at an intermediate point in the lengthwise direction.SELECTED DRAWING: Figure 1
【課題】閉脚方向への復元弾性力を増大させ、軟質建材と釘軸の間に生じる摩擦力を大きくすることで、耐引き抜き強度を向上させた開脚式打ち込み釘を提供する。【解決手段】断面半円状となる一対の釘軸２と帯状薄板３を有し、平坦面側２ａが対向するように並列させた両釘軸２間に帯状薄板３を介在させ、両釘軸２と帯状薄板３を頭部４ａで結合し、両釘軸２の他端側を開脚用のテーパ面２ｄとした開脚式打ち込み釘１において、前記両釘軸２に、互いの平坦面側２ａが長さ方向の中間部で離開するように、長さ方向に沿って湾曲するような形付けを付与した。【選択図】図１
OPENABLE DRIVING NAIL
開脚式打ち込み釘
WAKAI TAKEMASA (author)
2019-01-31
Patent
Electronic Resource
Japanese
IPC:
F16B
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES
,
Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS