JPS6436718U

JPS6436718U -

Info

Publication number: JPS6436718U
Application number: JP13188287U
Authority: JP
Priority date: 1987-08-28
Filing date: 1987-08-28
Publication date: 1989-03-06

Description

[Brief explanation of the drawing]

第１図は本考案にかかる被加工対象物支持装置
を使用した状態の説明図、第２図は本支持装置の
分解した部品配置状態説明図、第３図は本支持装
置を組立てた状態の縦断面図、第４図イ、ロは同
じく要部縦断面図、第５図イ、ロ、ハは従来例に
おける被加工対象物支持装置の要部縦断面図であ
る。１：被加工対象物、２：基台、３：被加工対象
物支持装置、４：昇降ネジ、５：本体、６：ロツ
クナツト、７：雄ネジ部、８：支持面、９：挿入
孔、１０：ネジ部、１１：ネジ部、１２：上端、
１３：段部、１４：ネジ部、１５：ネジ部、１６
：挿入孔。 Figure 1 is an explanatory diagram of the workpiece support device according to the present invention in use, Figure 2 is an explanatory diagram of the disassembled parts arrangement of the support device, and Figure 3 is the assembled state of the support device. FIGS. 4A and 4B are longitudinal sectional views of a main part, and FIGS. 5A, 5B, and 5A are longitudinal sectional views of main parts of a conventional workpiece support device. 1: Workpiece, 2: Base, 3: Workpiece support device, 4: Elevating screw, 5: Main body, 6: Lock nut, 7: Male threaded part, 8: Support surface, 9: Insertion hole, 10: Threaded part, 11: Threaded part, 12: Upper end,
13: Stepped portion, 14: Threaded portion, 15: Threaded portion, 16
: Insertion hole.

Claims

[Scope of Claim for Utility Model Registration] A lifting screw having a threaded portion formed with a constant lead _l1 on its outer surface, and a lifting screw screwed into which the lifting screw is screwed and having the same lead _l1 as the lifting screw. A cylindrical support body having a threaded part made from a lead l2 on the upper outer surface of the cylindrical support body, which has a threaded part made from a lead _l2 different from the lifting screw on its inner surface, and a stepped part abutting the upper end of the main body on the inner surface of the cylindrical body. A lifting screw is screwed into the upper part of the stepped portion and has a threaded portion made of the same lead _l1 as the lifting screw,
and a lock nut having a threaded part made of the same lead _l2 as the threaded part on the upper outer surface of the main body into which the threaded part of the upper part of the main body is screwed under the step, and the lead of each of the threaded parts, l2. ₁ , l ₂ have a relationship of l ₁ > l ₂ .