JPH0475274U

JPH0475274U -

Info

Publication number: JPH0475274U
Application number: JP11950690U
Authority: JP
Priority date: 1990-11-15
Filing date: 1990-11-15
Publication date: 1992-06-30

Description

[Brief explanation of the drawing]

第１図および第２図はそれぞれ本考案の実施例
に係る密封装置の半裁断面図、第３図ないし第７
図はそれぞれ従来例に係る密封装置の半裁断面図
である。１……シールリング、２……摺動面、３……テ
ーパ、４……パツキン、５……バツクアツプリン
グ、６……ベロー、７……シート（密封部）、８
……隙間、１１……ピストン、１２……シリンダ
、１３……装着溝、１４……底壁。 1 and 2 are half-cut sectional views of a sealing device according to an embodiment of the present invention, and FIGS. 3 to 7 respectively.
Each figure is a half-cut sectional view of a sealing device according to a conventional example. 1... Seal ring, 2... Sliding surface, 3... Taper, 4... Packing, 5... Back spring, 6... Bellow, 7... Seat (sealing part), 8
... Gap, 11 ... Piston, 12 ... Cylinder, 13 ... Mounting groove, 14 ... Bottom wall.

Claims

[Claims for Utility Model Registration] 1. In a sealing device installed in an annular mounting groove formed on the opposing peripheral surface of one of two members that move relative to each other, the axis of the sliding surface 2 relative to the other member A seal ring 1 made of synthetic resin and having a taper 3 on one end in the direction, a packing 4 made of a rubber-like elastic material arranged on the outer peripheral side of the seal ring 1, and a seal ring 1 and a packing 4 made of a rubber-like elastic material in the axial direction and other directions of the seal ring 1 and the packing 4. A back-up spring 5 made of metal or synthetic resin that covers the end side and the outer circumferential side, and the back-up spring 5
A bellows 6 made of metal or synthetic resin, which is airtightly arranged on the outer circumferential side of the bellows 6 and has an annular shape and expands and contracts in the radial direction, and a bellows 6 made of a rubber-like elastic material that seals between the bellows 6 and the bottom wall of the mounting groove. A sealing device characterized by having a sealing portion 7. 2. In a sealing device that is mounted in an annular mounting groove formed on the opposing peripheral surface of one of two members that move relative to each other, a taper 3 is provided at one end in the axial direction of the sliding surface 2 relative to the other member. A seal ring 1 made of a synthetic resin, a packing 4 made of a rubber-like elastic material arranged on the inner circumferential side of the seal ring 1, and a seal ring 1 and a packing 4 made of a rubber-like elastic material arranged on the other axial end side and the inner circumferential side of the seal ring 1 and the packing 4. A back-up spring 5 made of metal or synthetic resin to cover, and the back-up spring 5
A bellows 6 made of metal or synthetic resin, which is airtightly arranged on the inner peripheral side of the ring and has an annular shape and expands and contracts in the radial direction, and a rubber-like elastic material that seals between the bellows 6 and the bottom wall of the mounting groove. A sealing device characterized by having a sealing part 7 made of.