| 摘要 |
<p>PURPOSE:To enable inexpensive and easy forming in a short time by forming lock grooves on a plate body in a rectangular shape through press working and by winding it once so as to form a cylinder body. CONSTITUTION:In a first process, a groove 4 in the groove width corresponding to the diameter of a pin 21 is formed by press working on a sheet steel body 1 whose long side part dimension is a circumference dimension of a socket main cylinder body 15 and whose short side part dimension is in the axial direction of the main cylinder body 15. This groove 4 is made of two parts of an inclined long hole 2 and a hole 3. Also, a projecting part 5, a recess part 6 and a circle hole 7 are formed on the plate 1 by press working at the same time. Next in a second process, both end side parts of the above plate 1 are opposed to each other, and the projecting part 5 and the recess part 6 are engaged with each other so as to form a single wound cylinder body 8. In a third process, the cylinder body 8 is closely fit into a circumferential groove 13 of a socket adapter 10, and an outer cylinder 12 is caulked to be engaged with the hole 7 so as to connect the cylinder body 8 to the adapter 10 in a body. In a fourth process, the socket main cylinder body 15 is rotatably and slidably fitted into the adapter 10. In a fifth process, the pin 21 is studded against the main cylinder body 15 through the grooves 4 and 4.</p> |
