CA1178901A - Segmented flexible hub - Google Patents

Segmented flexible hub

Info

Publication number
CA1178901A
CA1178901A CA000388853A CA388853A CA1178901A CA 1178901 A CA1178901 A CA 1178901A CA 000388853 A CA000388853 A CA 000388853A CA 388853 A CA388853 A CA 388853A CA 1178901 A CA1178901 A CA 1178901A
Authority
CA
Canada
Prior art keywords
hub
wheel
bight portion
flange
disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000388853A
Other languages
French (fr)
Inventor
Robert B. Morris
Paul F. Czerniewski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trane US Inc
Original Assignee
American Standard Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Standard Inc filed Critical American Standard Inc
Application granted granted Critical
Publication of CA1178901A publication Critical patent/CA1178901A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/123—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1316—Structure radially segmented
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1328—Structure internal cavities, e.g. cooling channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/134—Connection
    • F16D2065/1344—Connection permanent, e.g. by casting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/134—Connection
    • F16D2065/1348—Connection resilient
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/134—Connection
    • F16D2065/1392—Connection elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples

Abstract

(Case No. 7078) ABSTRACT OF THE DISCLOSURE
A bell-shaped, radially segmented flexible hub to which a brake disc may be secured. The hub is provided with a radially outwardly directed flange for securing the hub to the wheel and on which flange the segments are integrally formed, each segment having a bight portion providing the flexibility, the hub having either a hole formed in each segment or a space between the adjoining segments through which a tool may be inserted for tightening or loosening bolts which secure the hub to the wheel.

Description

-``- 1~7~39~1 High thermal gradients encountered with brake discs create a problem of disc failure due to fracturing. To avoid this problem, thermal expansion and contraction must be accom-modated, such as by providing a flexible hub member on which the disc is mounted. These hub members may be bell-shaped, with the flexure occurring at the bight. The hubs are normally bolted to or cast integrally with the disc, and mounted either by bolting to the wheel or by a press fit on the wheel axle.

SUMMARY OF THE INVEN~ION
The object of the present invention is to provide a flexible bell-type hub that is cast integrally with the disc and bolted to the wheel and is provided with access means for reaching the bolts where very limited space exists between the wheel and disc.
Briefly, the invention provides a flexible bell-shaped hub for mounting a brake disc on a car wheel carried on an axle, all rotatable with each other, said hub having a bight portion projecting axially away from the car wheel, and a radially outwardly turned peripheral flange removably and con-centrically secured to the wheel in facing relation to said bight portion, said bight portion having its inner periphery secured to an internal web of the disc and being provided with a plurality of equiangularly spaced, axially disposed openings through which access may be had to bolts by which said flange is secured to the car wheel, and said hub being formed by a plurality of equiangularly spaced, axially disposed segments having a bight portion formed thereon between one end connected integrally to said flange and the other end connected integrally with said web.
Because of the out-turned flange very little access space to the bolts is ,...

Ql available, and, therefore, an access space is formed at each sector of the segmented hub to pro~ide access to the bolts.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a plan view, partly in outline and partly in section, of a segmented bell-shaped flexible hub embodying the invention.
Fig. 2 is an elevational view, in section, taken along line II-II of the hub shown in Fig. 1.
Fig. 3 i8 a plan view, in outline, of a modified embodi-1~ ment of the hub shown in Fig. 1.
Fig. 4 is an elevational view, in section, taken alongline IV-IV of the h~b shown in Fig. 3.
Fig. 5 is a fragmentary sectionalized view, designated PRIOR ART, of a presently known bell-shaped flexible hub.

DESCRIPTION AND OPERATION
As shown in Figs. 1 and 2, a brake disc 1 is secured to a car wheel 2, for rotation therewith, by a flexible hub 3.
m e outer periphery of hub 3 i8 formed with a plurality of dovetail sections 4 which are cast integrally with a center web 5 of disc 1~
Hub 3 is formed by a plurality of a~ially disposed segments 6 each having a bight 7 and all unitarily joined by an outwardly turned central bolting flange 8 by which the hub is secured to the wheel 2. A plurality of bolts 9, only one of which is shown, secure the hub 3, and consequently disc 1, to wheel 2. As may be seen in Fig. 2 of the drawings, there is little access space between the outwardly turned ~ '~

bolting flange 8 and the inner peripheral portion of disc 1, as compared to the space available on a presently known hub 10 having an inwardly turned bolting flange 11, as shown in Fig. 5 of the drawings.
According to the invention and as shown in Fig. 2, the bight 7 of each segment 6 of hub 3 projects axially away from wheel 2 oppositely to the form of the hub 10 shown in Fig. 5.
This form of hub 3, therefore, provides greater hub flexibility than hub 10, but less space for accessibility to bolt 9. In further accordance with the invention and in order to provide access to bolts 9, a radially disposed space 12 is provided between each adjoining segments 6 to permit a tool, such as a socket wrench, for example, to be inserted therethrough for fiecuring or removing ~aid bolts.
The embodiment shown in Figs~ 3 and 4 of the drawings differs from that shown in Figs. 1 and 2 in that a bell-shaped hub 13 is provided with a plurality of axially disposed holes 14 aligned with each bolt 9 and through which access may be had to said bolts for installation or removal.
Disc 1 is provided with a plurality of angularly spaced radial fins 15 between a pair of axially spaced-apart outer parallel friction rings 16 for dissipating heat therefrom generated during braking action.
Wheel 2 is secured on a vehicle axle 17 for rotation therewith.

Claims (2)

The embodiments of the invention in which an ex-clusive property or privilege is claimed are defined as follows:
1. A flexible bell-shaped hub for mounting a brake disc on a car wheel carried on an axle, all rotatable with each other, said hub having a bight portion projecting axially away from the car wheel, and a radially outwardly turned peripheral flange removably and concentrically se-cured to the wheel in facing relation to said bight portion, said bight portion having its inner periphery secured to an internal web of the disc and being provided with a plurality of equiangularly spaced, axially disposed openings through which access may be had to bolts by which said flange is secured to the car wheel, and said hub being formed by a plurality of equiangularly spaced, axially disposed seg-ments having a bight portion formed thereon between one end connected integrally to said flange and the other end connected integrally with said web.
2. A flexible bell-shaped hub, as set forth in claim 1, wherein said openings are formed between each pair of ad-jacent segments.
CA000388853A 1980-12-15 1981-10-27 Segmented flexible hub Expired CA1178901A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21633680A 1980-12-15 1980-12-15
US216,336 1980-12-15

Publications (1)

Publication Number Publication Date
CA1178901A true CA1178901A (en) 1984-12-04

Family

ID=22806650

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000388853A Expired CA1178901A (en) 1980-12-15 1981-10-27 Segmented flexible hub

Country Status (4)

Country Link
BR (1) BR8107936A (en)
CA (1) CA1178901A (en)
GB (1) GB2090636A (en)
ZA (1) ZA815739B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4501346A (en) * 1982-03-05 1985-02-26 General Signal Corporation Disc brake assembly
FR2797929B1 (en) * 1999-08-27 2001-11-30 Peugeot Citroen Automobiles Sa BRAKE DISC WITH FRICTION RING AND HOLDING PARTS THEREOF IN BOWL FORM
DE10346343B4 (en) * 2003-10-06 2007-07-26 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake disc attachable to a wheel hub
DE102012110454B3 (en) * 2012-10-31 2014-03-13 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Connection of a shaft brake disk of a rail vehicle with a vehicle-side connection element
DE102015110104A1 (en) * 2015-06-24 2016-12-29 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Brake disc device for a vehicle

Also Published As

Publication number Publication date
BR8107936A (en) 1982-09-14
ZA815739B (en) 1982-08-25
GB2090636A (en) 1982-07-14

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Legal Events

Date Code Title Description
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