JPH0477065U

JPH0477065U -

Info

Publication number: JPH0477065U
Application number: JP12111590U
Authority: JP
Priority date: 1990-11-19
Filing date: 1990-11-19
Publication date: 1992-07-06
Anticipated expiration: 2005-11-19
Also published as: JP2523642Y2

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係る密封装置の半裁
断面図、第２図は同密封装置の装着方法を示す半
裁断面図、第３図は本考案の他の実施例に係る密
封装置の半裁断面図、第４図は同密封装置の装着
方法を示す半裁断面図、第５図ないし第１０図は
それぞれ従来例に係る密封装置の半裁断面図、第
１１図は第１０図の密封装置の装着方法を示す半
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……Ｏリング、７……壁部、８……Ｄリン
グ、９……円弧面、１０……突起、１１……ピス
トン、１２……シリンダ、１３……装着溝、１４
……底壁、１５，１７……側壁、１６……分割面
。 FIG. 1 is a half-cut sectional view of a sealing device according to an embodiment of the present invention, FIG. 2 is a half-cut sectional view showing a method of installing the same sealing device, and FIG. 3 is a half-cut sectional view of a sealing device according to another embodiment of the present invention. 4 is a half-cut sectional view showing a method of installing the same sealing device, FIGS. 5 to 10 are half-cut sectional views of conventional sealing devices, and FIG. 11 is a half-cut sectional view of the sealing device shown in FIG. 10. FIG. DESCRIPTION OF SYMBOLS 1... Seal ring, 2... Sliding surface, 3... Taper, 4... Packing, 5... Backup spring, 6... O-ring, 7... Wall, 8... D-ring, 9... ...Circular surface, 10...Protrusion, 11...Piston, 12...Cylinder, 13...Mounting groove, 14
... Bottom wall, 15, 17 ... Side wall, 16 ... Dividing surface.

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 with a taper 3 on one end in the direction, a packing 4 made of a rubber-like elastic material arranged on the outer circumferential 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. 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
and a D-ring 8 made of a rubber-like elastic material, with its arcuate surface 9 disposed on the outer circumferential side,
A sealing device characterized in that a protrusion 10 is provided on the outer peripheral surface of the back-up spring 5 and is aligned with the D-ring 8 in the axial direction. 2. In a sealing device that is installed in an annular mounting groove formed on the opposing peripheral surface of one of two members that move relatively, 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 disposed on the inner circumferential side of the seal ring 1, and the other axial end side and 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 D-ring 8 made of a rubber-like elastic material, which is disposed on the inner circumferential side of the D-ring 8 and whose arcuate surface 9 is disposed on the inner circumferential side;
A sealing device characterized in that a protrusion 10 is provided on the inner circumferential surface of the back-up spring 5 and is aligned with the D-ring 8 in the axial direction. 3. Item 1 or 2, characterized in that the back-up spring 5 is provided with a wall portion 7 that covers one end side of the seal ring 1 and the packing 4 in the axial direction.
Sealing device as described in section.