JPH07103915B2 - Brake by-product deflector in wheel and disk brake assembly - Google Patents

Description

TECHNICAL FIELD The present invention relates to an assembly of a wheel and a disc brake and a deflector plate used therefor.

[Prior Art] One of the problems of disc brakes of automobiles, especially foreign cars, is
A large amount of by-products are generated during the braking operation and adhere to the outside of the wheel in the axial direction to form a surface layer that impairs the appearance of the automobile. Furthermore, overheating reduces braking efficiency,
Causes excessive friction.

Hibbard U.S. Pat. No. 2,851, entitled "Wheel Structure",
The invention of No. 131 relates to an assembly of an automobile wheel and an annular cover having a ventilation hole. The vent has matching scoops and louvers for delivering cooling air to the brake structure. The cover is essentially a deformed outer hub cap.

Hibbard U.S. Patent No. 2,94 entitled "Wheel Structure"
The invention of 0,555 (1960) relates to an assembly of an automobile wheel and an improved toroidal cover having vents for delivering cooling air to the brake structure, which is also essentially modified external It is a hub cap.

Rion's U.S. Pat. No. 3,028, entitled "Wheel Structure",
The invention of No. 936 (1962) relates to an exterior cover for a vehicle wheel that is decorative and also supplies cooling air to the brake assembly. A wheel cover of a type that is mounted by pressing and then pry open to remove is provided with a circumferential air scoop for cooling a wheel structure having an opening. But that too is essentially a deformed outer hubcap.

Bab Nash U.S. Pat. No. 4,005,768 (1977), entitled "Disc Brake Dust Shield," is a semicircular dust shield designed to protect disc brakes from road dust or water. There is. The shield has a hole with an annular lip that allows air to flow around the rotor and cools the rotor. The shield is a semi-circular, two-layer device integrally mounted adjacent to the inner surface of the brake. However, no member is provided in this device to protect the wheels from brake by-products.

Bottieri Canadian Patent No. 1,141,801 (1983), entitled "Shield Plates in Wheel and Disc Brake Assemblies," discloses a clamp between the wheel spider of an automobile and the disc brake rotor of that wheel. Thin metal deflector plate. This plate covers the inner side of the wheel spider in the axial direction and prevents by-products generated from the disc brake from adhering to the wheel and impairing its appearance. As such, it is designed to be invisible from the outside of the car.

Bottieri U.S. Pat. No. 4,484,667 (1984) is "shield plate for wheel and disc brake assembly".
The present invention relates to an improvement of Bottieri's Canadian Patent No. 1,141,801. This improvement has two features aimed at making it possible to more universally mount the same deflector shield on the wheels of different motor vehicles. That is, the universal mounting hole pattern and slits on the outer edge allow mounting of the same dust shield on several different wheels. This versatility of installations prevents brake by-products from sticking to the outside of the tire and reduces cost and consumer expense. This is also designed to be invisible to the car and outside.

However, none of the above prior art teaches a practical by-product deflector and cooling air scoop combination. The present invention is a dual-function byproduct deflector and cooling device designed to be invisible to the exterior of the vehicle.

SUMMARY OF THE INVENTION The present invention comprises a deflector plate and an air scoop in a known manner to prevent by-products from the brake from reaching the outside of the wheel and to direct cooling air to the brake. Brake by-product deflector that blows organisms off wheels.

According to a preferred embodiment of the invention, the deflector plate is clamped between the brake rotor and the axially outer side of the wheel spider. The deflector plate is spaced axially outward from the brake disc, covers the inside of the wheel (inside the spider), and prevents by-products generated by the braking action from reaching the outside of the wheel spider. Four
One or more slots are cut in the deflector plate to deliver cooling air to the brakes and act as an air scoop that blows brake by-products off the wheels.

The main object of the present invention is to improve by having a novel structure for directing the cooling air to the break while preventing the brake by-product from adhering to the appearance of the wheel by blowing the brake by-product off the wheel. To provide a by-product deflector.

In a first embodiment of the present invention there is provided a vehicle wheel having an annular tire support and a spider extending inwardly from the rim to the axle.

The spider has a plurality of holes inwardly isolated from the rim.
A disc brake having a caliper with a brake pad is axially inwardly separated from the spider, faces the spider, and is carried by a brake rotor clamped to the spider.

The brake disc generates a brake by-product on the side facing the spider due to the friction generated between the brake pad and the brake disc during the braking operation. An improvement of the present invention is to have a deflector plate clamped between the wheel spider and the brake caliber and the brake rotor temporally outside of the disc brake. The deflector plate blocks the axial inside of the wheel spider from the brake caliper and prevents friction-generated brake by-products from passing through the spider and out of the brake to the outer wheel portion of the spider.

Yet another improvement is to have four or more slots cut in the by-product deflector rotationally. These slots act as air scoops as the vehicle moves forward, thereby delivering cooling air to the brakes and blowing brake by-products from the wheels.

A second embodiment is Bottieri U.S. Pat. No. 4,484,667.
It is an improvement of the issue. This is a deflector plate with slits that extend inwardly from the deflector plate to provide flexible elastic fingers, which is also a good fit for wheels that may have inner diameters that differ from the nominal value. Can fit. The deflector plate has holes through which various numbers of studs pass, and the studs are fitted with nuts to clamp the wheels and deflector plate to the brake rotor. The improvement is that the deflector plate has four or more slots cut into it that act as air scoops that deliver cooling air to the brakes and blow the brake by-products off the wheels.

Other objects of the invention will be apparent from the following description and claims, with reference to the accompanying drawings, in which the same reference numerals are used for corresponding parts in the figures.

Examples The following examples of the invention will be described, but it should be noted that the invention is not limited to these particular examples, and other examples are possible. Also, the terminology used herein is for the purpose of describing the invention and is not limiting.

Referring to FIG. 3, the assembly of the present invention includes wheels and a disc brake of conventional shape. In FIG. 3, the right side is the outer side (the visible side) of the wheel in the axial direction. The wheel has an annular rim 10 for supporting inflated tires (not shown), and a spider 11 secured to the inside of the rim 10 and extending generally radially inwardly therefrom. The wheel spider has a central opening and extends spaced around the hub 13 of the opening brake rotor 14. The wheel spider also has a plurality of circumferentially spaced arcuate holes 11a for design and strength purposes. (Fig. 2).

Axial outside of wheel spider 11 (right side in Fig. 3)
In, the brake rotor carries a cap 15 that covers the end of a stub shaft (not shown) of the steering knuckle, on which the brake rotor is rotatably mounted by antifriction bearings. Inside the wheel spider 11 axially inward (left in FIG. 3), the brake rotor 14 has a cylindrical side wall 16 with a diameter substantially larger than the central opening 12. The cylindrical side wall 16 is integrally connected to the hub 13 by a flat annular wall 17 extending in the radial direction between the cylindrical side wall 16 and the hub 13.

A plurality of circumferentially spaced threaded studs 18 project axially outwardly from the radial wall 17 of the brake rotor.
These studs pass through corresponding holes 19 in the wheel spider 11. A nut 20 is screwed onto the stud 18 to secure the brake rotor 14 to the wheel.

A brake disc 21 is fixedly attached to a segment 22 having a slightly larger diameter, which is provided at the axially inner end of the cylindrical side wall 16 of the brake rotor 14.

The disc brake caliper 23 carries a friction pad which engages the brake disc 21 in a known manner. The brake caliper is mounted on the vehicle body in a non-rotating manner by suitable means, while the rim 10, the spreader 11, the brake rotor 14 and the brake disc 21 rotate together.

According to the invention, the disc-shaped deflector plate 24 shown in FIG. 1 is crimped between the spider 11 and the radial wall 17 of the brake rotor. Slots 40 are formed in the deflector plate 24 to form an air scoop that delivers cooling air to the brakes while the vehicle is running. The air also blows off brake by-products from the wheels. As shown in FIG. 3, the annular outer peripheral portion 25 of the deflector plate engages with the inner side of the annular outer peripheral portion 11b of the spider 11, where the outer peripheral portion 1 of the spider 1
1b is connected to the rim 10. The deflector plate 24 is formed with a plurality of openings 26 aligned with the openings 19 in the spider 11, through which the studs 18 on the brake rotor pass. The deflector plate 24 also has a circumferential central opening 27 through which the hub 13 of the brake rotor passes.

As shown in FIG. 3, the deflector plate 24 extends completely along the inner surface of the spider 11. Otherwise the spider 11 would be exposed to the wear debris created when applying the disc brakes. With the deflector plate,
It is prevented that the abrasion debris is scattered from the opening 11a of the spider and adheres to the wheel on the axially outer side of the spider.

FIG. 4 shows an enlarged view of the improvements of the present invention. Maximum depth approx. 1 /
Four or more 4 inch slots 40 are cut into the deflector plate to form a scoop. The direction of the slot opening is such that the rising portion of the scoop faces outward in the traveling direction of the wheel.

FIG. 5 shows a second embodiment of the present invention as an improvement on Bottieri U.S. Pat. No. 4,484,667.

According to the present invention, the slit 37 is formed in the outer segment 36 of the deflector plate. Slits 37 extend inwardly from the circumferential outer end 38 of the outer segmet 36 to provide a flexible to resilient arcuate finger 39. Finger 39
Thereby, it becomes easy to insert the deflector plate 25 into the wheel whose diameters are slightly different depending on the type.

Another important feature of this embodiment is that the seven holes 27-33 in the deflector plate have their respective arcuate dimensions, so that the deflector plate can be mounted on the wheels of some types of passenger cars. It is located so that you can.
For example, as shown in FIG. 5, the wheels are circumferentially arranged at intervals of 90 ° and the holes 27, 28, 30 of the deflector plate are arranged.
And 32 may have four wheel studs 18 extending therethrough. Another type of wheel is two besides four wheel studs
Has two guide pins. These guide pins are received in holes 29 and 33 in the deflector plate. Fig. 5 shows the holes arranged in the circumference of the deflector plate at 72 ° intervals.
Figure 5 shows a deflector plate attached to yet another wheel with five wheel studs passing through 27,28,29,31 and 32.

As is apparent from FIG. 5, holes 28 and 32 are equally arcuately spaced on opposite sides of hole 27 and each is sufficiently arcuate to extend from hole 27 to greater than 72 ° and less than 90 °. Have a length. Hole 29 is on the opposite side of hole 27 from hole 28
It is in the range of less than 72 °. The same applies to the relationship between the hole 31 and the hole 32. Hole 30 is located diametrically opposite hole 27.
Further, the hole 33 is located on the diametrically opposite side of the hole 29.

An improvement of the present invention is to have four or more slots 40 up to about 1/4 inch (about 6 mm) cut into the deflector plate to form a scoop. The direction of the hole is determined so that the rising portion of the scoop faces outward in the traveling direction of the wheels.

[Brief description of drawings]

1 is a perspective view of a deflector of the present invention, FIG. 2 is an external view of an assembly of a wheel and a disc brake equipped with the deflector of the present invention, and FIG. 3 is a line 3-- of FIG. Fig. 4 is a longitudinal section view of this assembly taken along line 3, and Fig. 4 is an enlarged view of the air slot, line 4-4 in Fig. 2.
Figure 5 is a cross-sectional view taken along Figure 5, Figure 5 is a perspective view of a second embodiment of the invention for use with the universally mounted dust shield of Bottieri U.S. Pat. No. 4,484,667, and Figure 6 is a schematic view of the invention. FIG. 7 is a partial vertical cross-sectional view showing a modified example of an assembly of wheels, a disc brake, and a deflector plate. 10 …… rim, 11 …… spider, 13 …… hub, 14 …… brake rotor, 18 …… stud, 21 …… brake disc, 23 …… caliper, 24 …… deflector plate, 26 …… hole, 27 ~ 33 …… holes, 40 …… slots.

Claims (5)

[Claims] 1. A wheel having (a) an annular tire support rim and a spider extending inwardly from the rim, the spider having a plurality of holes spaced inwardly from the rim,
(B) A caliper having a brake pad, a brake rotor clamped to the spider, and a disc brake that carries a brake disc axially inwardly separated from the spider and facing the spider. An assembly includes a deflector plate clamped between the spider and the brake rotor axially outside the brake disc, the deflector plate being radially outward from a clamp position with the brake rotor. Covering the inside of the spider in the axial direction, preventing brake by-products generated by friction from escaping from the brake to the portion of the wheel outside the spider, and supporting the tire on the deflector plate. A circle that slidably engages the inside of the wheel at the rim position It has Jogai end, and four or more slots cut in the deflector plate forming a Susupu outwardly facing automobile in the forward direction of the automobile,
An assembly characterized in that it allows air to flow through the slot and onto the brake, thereby blowing off by-products from the wheel and having mounting holes aligned with the proper alignment of the wheel studs. 2. A wheel having an annular tire support rim and a spider extending inwardly from the rim, the spider having a plurality of holes spaced inwardly from the rim, and b) a sub-car having a caliper equipped with a brake pad and a brake rotor clamped to the spider, for use with a disc brake that carries a brake disc axially inwardly separated from the spider and facing the spider. In the biological deflector, a central portion of the deflector is clamped to the spider and the brake rotor axially outside from the brake disc,
The deflector plate extends radially outward from the central portion, covers the axially inner side of the spider, and thereby prevents brake by-products generated by friction from adhering to the axially outer side of the spider, The deflector plate has a circumferential outer end that slidably engages the inside of the wheel at the position of the tire support rim, and the deflector plate has four or more slots cut into it to provide an automotive vehicle. Forming a scoop facing the outside of the vehicle in the forward direction, allowing air to flow through the slots and onto the brakes, thereby blowing off by-products and aligning the wheel studs with the proper alignment. A by-product deflector having a mounting hole. 3. The deflector plate according to claim 1 or 2, wherein four (a) axially projecting outward from the brake rotor for fixing the spider to the brake rotor. A deflector plate having holes arranged to selectively pass through the wheel studs, (b) five wheel studs, or (c) four wheel studs and two guide pins. 4. The deflector plate according to claim 3, wherein the holes are five arc-shaped holes located at intervals of 72 ° on the circumference, and two of the 25 holes, respectively. A deflector plate having two additional arcuate holes located opposite each other. 5. The deflector plate according to claim 1, wherein slits circumferentially spaced from each other extend inwardly from the outer end, and are continuous along the peripheral surface of the deflector plate. A deflector plate, characterized in that it provides flexible elastic fingers to the.