EP0055656A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method of fastening a first shell to a second shell to form a sealed housing
Assignee: Bendix Corp
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Filing: 1981-12-17
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Granted: —
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Expires: 2001-12-17
Abstract
Abstract A method of fastening a first shell (10) to a second shell (12) to form a housing by crimping an annular wall (72) of the former over a radial flange (24) of the latter to axially compress therebetween a head (30) of a diaphragm (32) which is received within a circumferential groove adjacent said radial flange, thus sealing the interior of the housing from the surrounding environment. According to the invention, the annular wall (72) of the first shell (10) isifurther deformed as at (76) to radially compress the bead of the diaphragm into the groove of the second shell (12). For use particularly in the production of pneumatic servomotors for power braking systems.
Inventors
- 👤 Henry Dorsett
- 👤 Michael Earl Gatt
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 17:31
CPC Classifications
B; B23; B23P; B23P11/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49877; Y10T29/49908; Y10T29/49909; Y10T29/49913; Y10T29/49915; Y10T29/49917
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
206 words
A method of fastening a first shell (10) to a second shell (12) to form a housing by crimping a peripheral surface on the first shell around a peripheral surface on the second shell to axially compress therebetween a bead (30) of a diaphragm (32) to seal the interior of the housing from the surrounding environment, comprising the steps of placing on a fixture (16) the second shell which includes a circumferential radial groove (26) formed adjacent a radial flange (24) constituting its peripheral surface, positioning the bead of the diaphragm in said groove, placing over said bead the opened end of an annular wall (72) which forms the peripheral surface of the first shell to surround said second shell peripheral surface, moving the first shell axially toward the second shell until' ' the radial flange of the latter engages a stop on the former, and crimping said annular wall of the first shell over said radial flange of the second shell to hold said flange in engagement with said stop, characterized in that it further includes the step of deforming said annular wall of the first shell adjacent said stop to radially compress the bead of the diaphragm into the groove of the second shell.
Claim 2
Independent Claim
206 words
A method of fastening a first shell (10) to a second shell (12) to form a housing by crimping a peripheral surface on the first shell around a peripheral surface on the second shell to axially compress therebetween a bead (30) of a diaphragm (32) to seal the interior of the housing from the surrounding environment, comprising the steps of placing on a fixture (16) the second shell which includes a circumferential radial groove (26) formed adjacent a radial flange (24) constituting its peripheral surface, positioning the bead of the diaphragm in said groove, placing over said bead the opened end of an annular wall (72) which forms the peripheral surface of the first shell to surround said second shell peripheral surface, moving the first shell axially toward the second shell until' ' the radial flange of the latter engages a stop on the former, and crimping said annular wall of the first shell over said radial flange of the second shell to hold said flange in engagement with said stop, characterized in that it further includes the step of deforming said annular wall of the first shell adjacent said stop to radially compress the bead of the diaphragm into the groove of the second shell.
Claim 3
Dependent Claim
57 words
A method according to claim 1, characterized in that said deforming step consists of producing an annular groove (76) into the annular wall (72) of the first shell, said groove creating inside the shell a rib which extends into the bead (30) of the diaphragm to radially compress same into the groove (26) of the second shell.
Claim 4
Dependent Claim
70 words
A method according to claim 2, characterized in that said deforming step includes the steps of moving the crimped first and second shells to a second fixture (64), rotating said second fixture while moving a tool (68, 70) into engagement with the annular wall (72) of the first shell adjacent its stop, and applying a uniform force to said annular wall through the tool to produce said annular groove (76).
Claim 5
Independent Claim
30 words
A method according to any of claims 1 to 3, characterized in that the radial compression of the diaphragm bead (30) prevents relative rotation between the first and second shells.
References Cited (Backward Citations)
No citation records indexed.
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