A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To eliminate trouble of nail pulling work in the demolition of a frame mold during the frame mold work in the construction industry.SOLUTION: In a nail exclusive for a frame mold, a neck 1a in consideration of a thickness of plywood has a step slightly larger than a diameter of a straight trunk and has its diameter gradually enlarging from there toward a head 1b, forming a taper, so that the nail is easily pulled out and is in an effective shape. During the demolition work of the frame mold, when a tip 1c of the nail is hit with a hammer in the state that the plywood 3 and a batten cleat 4 are separated and the nail remains at the plywood 3 side, the head 1b and the neck 1a forming the taper are instantly peeled off from the plywood 3, a contact point of the plywood 3 and the nail is only the surrounding area of the trunk of the nail, the nail can be pulled down without pausing, and when the tip 1c of the nail is pressed down to the surface of the plywood 3, there is no contact point between the plywood and the nail and it is in the state of being removed, so that the nail pulling work in the demolition work of the frame mold can be significantly shortened.SELECTED DRAWING: Figure 4
【課題】建設業の型枠工事で、型枠解体時の釘抜き作業の煩わしさがある。【解決手段】合板の厚みを考慮した首部１ａは、ストレートな胴部の径を僅かに上回る段差を設け、そこから頭部１ｂに向かって徐々に径を増し、テーパーを形成して、抜く時に抜き易く、効率の良い形状にした型枠専用釘である。型枠解体作業では、合板３と桟木４を分離して合板３側に型枠専用釘が残った状態で、釘の先端部１ｃを金槌で叩くと頭部１ｂとテーパーを形成する首部１ａが瞬時に合板３から剥離し、合板３と釘の接点は釘の胴部の周囲だけになり、一気に釘を押し下げる事が出来、合板３の面まで釘の先端部１ｃを押し下げると合板と釘の接点は無くなり、抜けた状態になるものであり、型枠解体時の釘抜き作業時間を大幅に短縮する事が出来る。【選択図】図４
To eliminate trouble of nail pulling work in the demolition of a frame mold during the frame mold work in the construction industry.SOLUTION: In a nail exclusive for a frame mold, a neck 1a in consideration of a thickness of plywood has a step slightly larger than a diameter of a straight trunk and has its diameter gradually enlarging from there toward a head 1b, forming a taper, so that the nail is easily pulled out and is in an effective shape. During the demolition work of the frame mold, when a tip 1c of the nail is hit with a hammer in the state that the plywood 3 and a batten cleat 4 are separated and the nail remains at the plywood 3 side, the head 1b and the neck 1a forming the taper are instantly peeled off from the plywood 3, a contact point of the plywood 3 and the nail is only the surrounding area of the trunk of the nail, the nail can be pulled down without pausing, and when the tip 1c of the nail is pressed down to the surface of the plywood 3, there is no contact point between the plywood and the nail and it is in the state of being removed, so that the nail pulling work in the demolition work of the frame mold can be significantly shortened.SELECTED DRAWING: Figure 4
【課題】建設業の型枠工事で、型枠解体時の釘抜き作業の煩わしさがある。【解決手段】合板の厚みを考慮した首部１ａは、ストレートな胴部の径を僅かに上回る段差を設け、そこから頭部１ｂに向かって徐々に径を増し、テーパーを形成して、抜く時に抜き易く、効率の良い形状にした型枠専用釘である。型枠解体作業では、合板３と桟木４を分離して合板３側に型枠専用釘が残った状態で、釘の先端部１ｃを金槌で叩くと頭部１ｂとテーパーを形成する首部１ａが瞬時に合板３から剥離し、合板３と釘の接点は釘の胴部の周囲だけになり、一気に釘を押し下げる事が出来、合板３の面まで釘の先端部１ｃを押し下げると合板と釘の接点は無くなり、抜けた状態になるものであり、型枠解体時の釘抜き作業時間を大幅に短縮する事が出来る。【選択図】図４
NAIL EXCLUSIVE FOR FRAME MOLD
型枠専用釘
NAKAJIMA SEIZO (author)
2021-03-18
Patent
Electronic Resource
Japanese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
/
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
MOLD FRAME, AND MOLD FRAME SYSTEM INCLUDING MOLD FRAME AND LIFTING DEVICE FOR LIFTING MOLD FRAME
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