Gearbox gaskets

TWM688540UActive Publication Date: 2026-10-11HOBON TRAFFIC MATERIALS
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Patent Information

Application Number
TW115206036
Authority / Receiving Office
TW · TW
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2026-06-30
Publication Date
2026-10-11
Estimated Expiration
2036-06-29

Smart Images

  • Figure TWG2TB001916131_001
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    Figure TWG2TB001916131_002
  • Figure TWG2TB001916131_003
    Figure TWG2TB001916131_003
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Abstract

This invention, as a gearbox gasket, includes a fixed outer frame and an elastic inner ring. The fixed outer frame is a thin, ring-shaped piece made of a rigid material, and the elastic inner ring is engaged with the inner ring of the fixed outer frame. The fixed outer frame has a plurality of positioning holes corresponding to the mounting holes of the gearbox body and gearbox cover. The overall gearbox gasket structure is relatively stable and reliable. During installation, it can be directly locked onto the gearbox body through the fixed outer frame, preventing arbitrary displacement or slippage. It also prevents oil leakage due to deformation caused by uneven screw installation force. This not only facilitates installation but also helps improve the reliability of gearbox maintenance.
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Claims

1. A gearbox gasket for installation between the mating surfaces of a gearbox housing and a gearbox cover, wherein the mating surfaces of the gearbox housing and the gearbox cover are respectively provided with a plurality of mounting holes corresponding to the gearbox housing; the gearbox gasket includes: a fixed outer frame, which is a thin, ring-shaped piece made of a rigid material, the outer contour of which generally conforms to the outer contour of the mating surfaces of the gearbox housing and the gearbox cover; an elastic inner ring, which is a linear ring made of an elastic material, the elastic inner ring being engaged with the inner ring of the fixed outer frame in a shape whose inner ring contour does not exceed the inner ring contour of the mating surfaces of the gearbox housing and the gearbox cover; and the fixed outer frame is provided with a plurality of positioning holes respectively configured corresponding to the mounting holes.

2. The gearbox gasket as described in claim 1, wherein, The thickness of the elastic inner rubber ring is slightly greater than the thickness of the solid outer frame.

3. The gearbox gasket as described in claim 1, wherein, The elastic inner rubber ring is injection molded into the inner ring of the solid outer frame.

4. The gearbox gasket as described in claim 1, wherein, The thickness of the elastic inner rubber ring is slightly greater than the thickness of the solid outer frame sheet; the elastic inner rubber ring is injection molded into the inner ring of the solid outer frame sheet.

5. The gearbox gasket as described in any one of claims 1 to 4, wherein, The solid outer frame is machined from stainless steel.

6. The gearbox gasket as described in any one of claims 1 to 4, wherein, The solid outer frame is formed from graphite.

7. The gearbox gasket as described in any one of claims 1 to 4, wherein, The elastic inner rubber ring is manufactured by injection molding using a rubber mold.

8. The gearbox gasket as described in any one of claims 1 to 4, wherein, The solid outer frame is made of stainless steel, and the elastic inner rubber ring is made of rubber by injection molding.

9. The gearbox gasket as described in any one of claims 1 to 4, wherein, The solid outer frame is formed from graphite, and the elastic inner rubber ring is formed from a rubber mold by injection molding.