JPH01113606U

JPH01113606U -

Info

Publication number: JPH01113606U
Application number: JP939288U
Authority: JP
Priority date: 1988-01-27
Filing date: 1988-01-27
Publication date: 1989-07-31

Description

[Brief explanation of the drawing]

第１図はねじ体であるタツピンねじの正面図、
第２図および第３図は本考案の一実施例を示し、
第２図は締結体と被締結体の縦断面図、第３図は
ねじ体を用いて締結体と被締結体を締結したねじ
止め構造の縦断面図、第４図および第５図は本考
案の互いに異なる従来例を示し、ねじ体を用いて
締結体と被締結体を締結したねじ止め構造の縦断
面図である。１……締結体、３……被締結体、４……ねじ下
孔部、Ｎ……ねじ体（タツピンねじ）、ｄ……不
完全ねじ部、５……下孔。 Figure 1 is a front view of a tatsupin screw, which is a screw body.
2 and 3 show an embodiment of the present invention,
Figure 2 is a longitudinal cross-sectional view of the fastening body and the fastened body, Figure 3 is a vertical cross-sectional view of a screw fastening structure in which the fastening body and the fastened body are fastened using a screw body, and Figures 4 and 5 are the main parts. FIG. 3 is a vertical cross-sectional view of a screw fastening structure in which a fastening body and a fastened body are fastened using a screw body, showing conventional examples of different designs. 1... Fastened body, 3... Body to be fastened, 4... Threaded hole portion, N... Threaded body (Tatsu pin screw), d... Incomplete threaded portion, 5... Prepared hole.

Claims

[Scope of utility model registration request]

A fastened body made of a thin plate is overlaid with a fastened body made of a thin plate, and a screw body is screwed into a screw hole provided in the fastened body from the fastened body to form an internal thread and tightened. In cases where the total thickness of the plate and the object to be fastened is smaller than the length of the incomplete thread under the neck of the threaded object, or the value is so close that sufficient thread strength of the threaded object cannot be obtained, the above-mentioned object to be fastened A screw fastening structure characterized by a screw hole portion of the body protruding to a position where it engages with the threaded portion of the screw body.