Method for withdrawal of a bearing from a gate mechanism

Patent metadata

Field	Value
Publication number	US-12038049-B2
Application number	US-202318315632-A
Country	US
Kind code	B2
Filing date	May 11, 2023
Priority date	May 3, 2021
Publication date	Jul 16, 2024
Grant date	Jul 16, 2024

Abstract

There are disclosed methods for withdrawal of a bearing from a gate mechanism including a mechanism housing, a carrier assembly, and discrete fasteners. The carrier assembly includes a carrier housing and a carrier bearing. The carrier bearing is supported for rotation within the carrier housing. The carrier housing has a carrier support mating with a receiving bore of the mechanism housing. The carrier housing has multiple flange fasteners aligning with housing fasteners and housing surfaces of the mechanism housing when the carrier housing mates with the receiving bore. Multiple discrete fasteners are removed from a first group of the flange fasteners aligned with the housing fasteners. The carrier assembly is displaced from the mechanism housing in response to inserting the plurality of discrete fasteners to a second group of the plurality of flange fasteners aligned with the plurality of housing surfaces.

First claim

What is claimed is:

1. A method of withdrawing of a bearing from a mechanism housing of a gate mechanism, the method comprising:
establishing a mechanism housing of the gate mechanism including a receiving bore, a plurality of housing fasteners, and a plurality of housing surfaces, the plurality of housing fasteners being located about a periphery of the receiving bore, and the plurality of housing surfaces located about the periphery of the receiving bore offset from the plurality of housing fasteners;
establishing a bearing carrier assembly including a carrier housing and a carrier bearing, the carrier bearing being supported within the carrier housing for rotation within the carrier housing, the carrier housing having a carrier support mating with the receiving bore, the carrier housing having a plurality of flange fasteners aligning with the plurality of housing fasteners and the plurality of housing surfaces when the carrier housing mates with the receiving bore;
removing a plurality of discrete fasteners from a first group of the plurality of flange fasteners aligned with the plurality of housing fasteners; and
displacing the bearing carrier assembly from the mechanism housing in response to inserting the plurality of discrete fasteners, removed from the first group of the plurality of flange fasteners, to a second group of the plurality of flange fasteners aligned with the plurality of housing surfaces.

2. The method as described in claim 1 , further comprising, before removing the plurality of discrete fasteners:
mating the carrier housing with the receiving bore;
aligning the plurality of flange fasteners with the plurality of housing fasteners and the plurality of housing surfaces; and
inserting the plurality of discrete fasteners to the first group of the plurality of flange fasteners aligned with the plurality of housing fasteners.

3. The method as described in claim 1 , wherein establishing the mechanism housing includes alternating in position the plurality of housing fasteners with the plurality of housing surfaces.

4. The method as described in claim 1 , wherein establishing the bearing carrier assembly includes maintaining the carrier bearing with a shoulder of the carrier housing on one side of the carrier housing and a removable retaining ring supported by a groove of the carrier housing on another side of the carrier housing.

5. The method as described in claim 1 , wherein inserting the plurality of discrete fasteners includes subjecting a linear force of a fastener surface of each discrete fastener of the plurality of discrete fasteners against the corresponding housing surface when the fastener head of the discrete fastener receives a rotational force.

6. The method as described in claim 1 , wherein inserting the plurality of discrete fasteners includes applying a first force by the plurality of discrete fasteners against the plurality of housing surfaces and a second force to the plurality of flange fasteners, the first force being a linear force substantially opposite to the second force.

Assignees

• Siemens Mobility Inc

Inventors

• Bohme Richard C

Classifications

• B61L29/04 Primary

  Gates for level crossings · CPC title

• F16C33/08

  Attachment of brasses, bushes or linings to the bearing housing · CPC title

• F16C2226/60

  with threaded parts, e.g. bolt and nut connections · CPC title

• F16C2226/74

  with snap-fit, e.g. by clips · CPC title

• F16C35/02

  in the case of sliding-contact bearings · CPC title