Spot-type disc brake with holding device for warning contact plug

• US 5,404,970 A
• Filed: 09/29/1993
• Issued: 04/11/1995
• Est. Priority Date: 04/10/1991
• Status: Expired due to Fees

• Current Assignee: Alfred Teves GmbH (ITT Automotive GmbH)
• Original Assignee: Alfred Teves GmbH (ITT Automotive GmbH)
• Inventors: Jungmann, Hermann, Guttich, Holger, Loffler, Josef, Fuchs, Elmar
• Primary Examiner(s): Oberleitner, Robert J.
• Assistant Examiner(s): Poon, Peter M.
• Application Number:
  US08/122,535
• Time in Patent Office: 559 Days
• Field of Search: 188/1.11, 188/73.35, 188/73.31, 116/208, 340/453, 340/454
• US Class Current: 188/1.11L
• CPC Class Codes: F16D 66/021 using electrical detection or indication means

Abstract

In a spot-type disc brake assembly with an electric friction lining warning device and a bleeder screw, a warning contact plug is supported at the brake caliper by using a holder. The holder is fixedly attached to the bleeder screw and has tongues that abut against the brake caliper. The tongues are a safeguard against the holder rotating relative to the caliper and position the warning contact plug on the brake.

Claims

1. A combination of a holder, a warning contact plug, and a bleeder screw for a spot-type disc brake, the combination comprising:

said holder shaped from a strip of spring metal sheet having two ends each bent over to U-shape, one of said ends being a fixing section and including at least one aperture lying generally within a plane normal to the direction of passage of the said bleeder screw therethrough and also including a securing tongue forming part of a wall of said aperture and positioned beside said aperture, said securing tongue angled off with respect to the plane within which said aperture lies, the other of said ends being configurated as an extending carrier arm for mounting the warning contact plug thereonto, said carrier arm having at least one angled-off supporting tongue.

2. The combination as claimed in claim 1, wherein said U-shaped end of said carrier arm has spring tongues jutting off laterally from said carrier arm and including apertures in which matching projections of the warning contact plug are lockable.

3. A holder for fixing a warning contact plug of an electric warning device indicating the wear of the friction lining at least one of brake pads of a spot-type disc brake also having a brake caliper, at least one friction lining wear sensor fixed to said at least one of brake pads and connected through at least one electric conductor to said warning contact plug, and a bleeded screw fixed on a projection of said brake caliper, said holder comprising:

a fixing section having an aperture for the passage of said bleeder screw and for being fastened by said bleeder screw to said brake caliper,

said fixing section including at least one securing tongue directly abutting against a lateral wall of said projection of said brake caliper; and

a carrier arm extending from said fixing section, bearing said warning contact plug,

said carrier am including at least one supporting tongue supporting said carrier arm at said brake caliper.

4. The holder as claimed in claim 3, wherein said supporting tongue is bent from said carrier arm in a direction to abut against said brake caliper.

5. The holder as claimed in claim 3, wherein said carrier arm has a U-shaped end and spring tongues extending laterally from said carrier arm, said spring tongues having apertures for receiving and locking thereinto matching projections of said warning contact plug.

6. The holder as claimed in claim 5, wherein said holder is made from a one-piece spring metal sheet.