BICYCLE BRAKE CALIPER CENTERING TOOL

Abstract

The invention relates to a bicycle brake caliper centering device consisting of a frame support (1) which has at each end a vertical hole (2) with respect to the ground, coinciding with the holes in the frame (3) for fixing the brake caliper (4), and in its body, three horizontal holes parallel to each other, one of them central (5) and the others, one on each side of the central hole (6), where the holes on each side of the central hole have a sliding bushing (7) in which a guide shaft (8) is inserted, while in the central hole there is an adjusting screw (9).A caliper bracket (13) has a shape similar to the frame bracket, although with stems (14) at its ends, which are threaded onto the brake caliper, said caliper bracket being positioned parallel to the frame bracket, and has holes (15) coinciding with the horizontal holes of the frame bracket, the central hole of the caliper bracket being a threaded hole (16).

Description

BICYCLE BRAKE CALIPER CENTERING TOOL OBJECT OF THE INVENTION The present invention, as indicated in the title, relates to a device designed to center the brake calipers with respect to the disc on bicycles, without the need to act directly on the brake caliper. The object of this invention is to provide a previously unknown solution to several problems that will be discussed later. Primarily, the aim is to achieve a final result that allows for a precise and reliable system for regulating the positioning of the brake pads against the discs, thus providing the best possible braking performance during the lifespan of the brake pads. The device in question provides essential novel features and notable advantages over the means known and used for the same purposes in the current state of the art. In the world of cycling, every detail counts to ensure a smooth and safe ride. However, there's one problem that plagues many cyclists, both amateur and experienced: the lack of a brake caliper truing tool. This small but crucial device can mean the difference between efficient braking and a constant headache. Here are some of the most annoying inconveniences that arise when this component is missing: A) Uneven wear of the brake pads: Without a caliper truing tool, the brake pads may not align correctly with the brake rotor. This can lead to uneven pad wear, where one part wears down faster than another. The result is reduced pad life and the need for more frequent replacements, which is both costly and inconvenient for the rider. B) Tedious caliper centering with each pad change: When changing brake pads, the cumbersome process of centering the brake caliper on the disc arises. This process involves manually adjusting the caliper's position to ensure proper contact between the pads and the disc. Without a caliper truing tool, this process can be tedious and time-consuming, which isn't ideal for cyclists who want a quick and efficient solution. C) Noise friction of the pads on the disc: Another common problem that arises from a lack of proper wheel alignment is the noisy rubbing of the brake pads against the disc. When the pads are not aligned correctly, they can rub unevenly against the brake disc, producing an annoying squeal or whine during braking. This noise is not only irritating for the cyclist but can also attract unwanted attention, especially in urban or residential areas. These drawbacks affect both the performance and the riding experience of the cyclist. From premature brake pad wear to annoying brake squeal, these problems can discourage even the most dedicated rider. Therefore, having a proper wheel truing tool not only improves braking efficiency but also contributes to a more enjoyable and trouble-free cycling experience. The device proposed by the invention fully and satisfactorily solves the problem described above, providing a series of advantageous and novel features, without any reduction in its performance in other aspects. The present invention has its field of application in the sector of bicycle devices. BACKGROUND OF THE INVENTION In the state of the art we find some documents related to the sector of the invention in question, although none of them fulfill the same function or provide the same advantageous characteristics. In document ES 0 427 673 A1 we find an improvement in a disc brake, characterized in that it comprises a rotating disc for mounting on a wheel, a flat friction surface on one side of said disc, a non-rotating brake support body, a friction member arranged along said disc, an arm connected to said friction member and mounted on said support body to pivot said arm towards said friction surface and to move it away from it and displace said friction member so that it engages with said disc in a direction substantially the same as the direction of rotation of said disc, whereby the rotation of the disc will increase the pressure of said friction member against said friction surface of the disc referred to. Document ES 2190316 A1 provides a disc brake comprising a disc, a brake caliper, two rocker arms, two brake pads, a hydraulic circuit capable of transmitting hydraulic pressure, and two hydraulic pistons movable in the same direction but opposite senses, each hydraulic piston acting on a first end of the corresponding rocker arm, which transmits the hydraulic pressure to the brake pads. Each rocker arm has a brake pad fixed to it, allowing rotation. The brake pads are completely outside the brake caliper. This disc brake can be used on motor vehicles, such as motorcycles, and bicycles. Document ES 2404150 A1 discloses a disc brake assembly for a vehicle comprising an inner support and an outer ring coupled via inclined surfaces. The inner support has first arms, each with a first bearing surface. The outer ring has second arms, each with a second bearing surface complementary to the first bearing surface. The bearing surfaces are coupled together, joining the arms, and have at least one portion forming a non-zero angle with the corresponding radial direction. Although we find in these and other existing documents in the state of the art patents related to bicycles and brake discs, no invention provides an effective solution like the product that is intended to be protected, leaving the previously mentioned drawbacks unresolved. Thus we see that until now there was no known system that, due to its novel characteristics, solves the aforementioned problems, both in terms of the cited documents and other traditional inventions or systems found in the state of the art. Taking into consideration the cases mentioned and analyzing the combined arguments, the invention proposed in this document leads to a final result that provides significant differentiating aspects compared to the current state of the art, and where a series of advances are provided in the elements already known with their corresponding advantages. In particular: - It provides a precise and reliable system for adjusting the positioning of the brake pads relative to the discs. - Provides the best possible braking performance throughout the lifespan of the brake pads. - Prevents uneven wear of brake pads. - It saves the user from the tedious manual centering by acting directly on the clamp. - Prevents friction between the pads and the disc. - It does not require an electronic system, but is completely mechanical. - It's a simple system to use. - It has great durability. - The brake caliper is not bolted directly to the frame, thus avoiding possible troublesome and costly breakages. DESCRIPTION OF THE INVENTION Thus, the present invention comprises the following elements: A frame support with a vertical hole at each end, aligned with the holes in the frame for mounting the brake caliper, and three parallel horizontal holes in its body, one central and the other two on either side of the central hole. The holes on either side of the central hole have a sliding sleeve into which a guide shaft is inserted, while the central hole contains an adjusting screw. The area containing the horizontal holes is covered by a retaining cap secured with screws, except for one hole in the cap that provides access to the adjusting screw. A caliper bracket, whose shape is similar to the frame bracket, although with stems at its ends, which are threaded onto the brake caliper, positioned parallel to the frame bracket, and which has holes coinciding with the horizontal holes of the frame bracket, the central hole of the caliper bracket being a threaded hole. For installation, the frame support is attached to the frame through its holes at its ends, then the sliding bushings are inserted into the horizontal holes on each side of the central hole, as well as the adjusting screw in the central hole, and then the area of ​​the horizontal holes is covered with the retaining cap. Next, the guide pins are inserted and the clamp bracket is positioned parallel to the frame bracket. Thus, both the adjustment screw and the guide pins run from the frame bracket to the clamp bracket. The caliper bracket is attached to the brake caliper thanks to its ends with threaded stems. Once this entire system is fixed, the bicycle wheel with its disc and sprocket is placed, partially inserting the disc into the center of the brake caliper. Using an appropriate tool, adjust the adjustment screw that extends from the frame mount to the threaded center hole of the caliper bracket. Turning the adjustment screw one way or the other will cause the caliper bracket, and therefore the brake caliper, to move axially, either closer to or further from the frame mount, thus centering the disc relative to the brake caliper. This way, the difficult and annoying task of directly working on the brake caliper to center it is avoided; instead, centering is done simply by turning the adjustment screw to properly position the brake caliper. BRIEF DESCRIPTION OF THE DRAWINGS For a better understanding of this descriptive document, a drawing is included which, by way of non-limiting example, describes a preferred embodiment of the invention: Figure 1.- Perspective view of the parts that constitute the invention. Figure 2.- Elevation view of the invention installed on a bicycle. The following numbered elements are highlighted in these figures: 1. Picture support. 2. Vertical holes of the picture support. 3. Bicycle frame. 4. Brake caliper. 5. Central hole of the picture support. 6. Side holes with respect to the central hole of the frame. 7. Sliding bushing. 8. Guide shaft. 9. Adjustment screw. 10. Retaining cap. 11. Retaining cap fixing screws. 12. Access hole to the adjustment screw present in the retaining cap. 13. Clamp support. 14. Clamp support rods. 15. Horizontal holes. 16. Threaded center hole. PREFERRED EMBODIMENT OF THE INVENTION A preferred embodiment of the proposed invention comprises the following elements: a frame support (1) having at each end a vertical hole (2) aligned with the holes in the frame (3) for attaching the brake caliper (4), and in its body, three parallel horizontal holes, one central (5) and the others one on each side of the central hole (6). The holes on each side of the central hole have a sliding sleeve (7) into which a guide shaft (8) is inserted, while the central hole contains an adjusting screw (9). The area containing the horizontal holes is covered by a retaining cap (10) properly secured with fixing screws (11), with the exception of a hole in the cap (12) that provides access to the adjusting screw. A caliper bracket (13), whose shape is similar to the frame bracket, although with stems (14) at its ends, which are threaded to the brake caliper, positioned parallel to the frame bracket, and which has holes (15) coinciding with the horizontal holes of the frame bracket, the central hole of the caliper bracket being a threaded hole (16).

Claims

1.- Bicycle brake caliper centering device, characterized by being constituted from a frame support (1) which has at each of its ends a vertical hole (2) with respect to the ground, coinciding with the holes in the frame (3) for fixing the brake caliper (4), and in its body, three horizontal holes parallel to each other, one of them central (5) and the others, one on each side of the central hole (6), where the holes on each side of the central hole have a sliding bushing (7) in which a guide shaft (8) is inserted, while in the central hole there is an adjustment screw (9), while the area in which the horizontal holes are located is covered by a retaining cap (10) duly fixed with fixing screws (11), with the exception of a hole present in the cap (12), while there is a caliper support (13), whose shape is similar to the frame support,although with stems (14) at its ends, which are threaded to the brake caliper, said caliper bracket being positioned parallel to the frame bracket, and having holes (15) coinciding with the horizontal holes of the frame bracket, the central hole of the caliper bracket being a threaded hole (16).

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