Brakes – Wheel – Axially movable brake element or housing therefor
Patent
1998-05-29
2000-05-02
Schwartz, Chris
Brakes
Wheel
Axially movable brake element or housing therefor
188 715, 188264A, F16D 5542, F16D 65847
Patent
active
060560894
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a brake device comprising a number of brake discs, brake pads and brake pad holders being arranged for mutual co-operation after axial operation by means of actuators for braking, the brake pads being carried by the brake pad holders that are connected to a first frame member, ring shaped brake discs are carried by a second frame member, brake pad holders and brake discs being axially displaceable journalled relative to each other, wherein the two frame members are arranged to be braked relative to each other after actuation of axially acting actuators.
2. Description of the Related Art
Brakes for vehicles are usually categorised into drum brakes and disc brakes. Disc brakes are the most common brakes on passenger vehicles, due to their efficiency and flexibility, while deem brakes are more usually used on trucks and busses, thanks to their ability for large scaling, i.e. that the brakes may he designed with large dimensions, e.g. for the purpose of cooling and for good braking.
BRIEF SUMMARY OF THE INVENTION
The primary object of the present invention, is to provide a brake device according to the introductory part of claim 1, where the braking performance and the cooling performance are unchanged in spite of the small dimensions and the safe function of the brake. Said objects are achieved with a device in accordance with the present invention which is principally characterized in that there are a number of passages/openings provided in the frame member/brake housing of the brake for leading air internally to the brake and thereby providing air cooling of comprised brake parts.
The invention will in the following be further described as a number of preferred embodiments with reference to the accompanying drawings, in which:
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
FIG. 1 is a cross sectional view of a brake in an active braking condition,
FIG. 2 shows in a plan view the brake device with different parts in section,
FIG. 3 shows another embodiment of a brake with cooling, shown in cross section,
FIG. 4 shows in a plan view said brake in section along different section lines in FIG. 3, and
FIG. 5 shows different views of ventilation openings for a brake housing.
DETAILED DESCRIPTION OF THE INVENTION
A device 1 for a brake 2 which is primarily intended for use with vehicles like busses, trucks, lorries etc., but may also be used for other purposes, and comprising a number of brake discs 3, brake pads 4, and brake pad holders 5 that are adapted to co-operate with each other after axial 6 actuation of the brake 2 by means of actuator means 7 for braking, with said comprised parts being arranged in a special way.
To be precise, the brake pads 4 are carried by the brake pad holder 5, which is connected to a first frame member 8.
Moreover, ring shaped brake discs 3 are carried by a second frame member 9. In order to allow for sell adjustment of the active brake parts 3; 4, 5, said brake pad holders 5 alone with the there upon carried brake pads 4, and brake discs 3 are axially displaceable journalled 10 relative to each other. For this object, the two frame members 8, 9 are adapted to be braked relative to each other after actuation of axially acting actuators 7.
One of said two frame members 8, 9 is formed by a vehicle chassis 8, and the second frame member is formed by a rotatable drum 9 onto which for example a vehicle wheel is arranged to be attached efficiently and secure by means or wheel bolts 11 according to art and not disclosed in detail. The brake discs 3, the number of which may vary from a single up to a large number depending upon space and braking performance, are preferably connected to the drum 9. They are for this object received by the drum 9 with their respective outer circumference part 12 of the brake discs 3 in a number of axially running grooves 13.
Preferably, there are several grooves 13 in the form of splines distributed correspondingly along the external mantle surface 16 of
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Karlsson Gerth
Sundqvist Bengt Lennart
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