U-shaped spring

Abstract

This utility model pertains to mechanical engineering. The technical result of this utility model is the creation of a U-shaped spring with increased strength due to the absence of a cutout for placing a wheel on one flat part, thereby increasing the strength of this flat part, and also due to the fact that the flat parts are thicker than the semicircular part. 5 clauses, 4 figs.

Description

[0001] The utility model relates to the field of mechanical engineering, namely to U-shaped springs and can be used in vehicles.

[0002] The closest approximation to the claimed utility model is the U-shaped spring described in U.S. Patent Application No. 20110266366, published October 3, 2011. It is shaped like the letter U and has upper and lower horizontal flat sections connected by a semicircular section. The flat sections have spring attachment elements and cutouts for wheel placement, while the semicircular section is designed to deform when a load is applied to the spring. This U-shaped spring is selected as the prototype for the claimed utility model.

[0003] The disadvantages of the U-shaped spring of the prototype are insufficient strength, due to the presence of two cutouts for placing the wheel on both flat parts.

[0004] The technical result of the utility model is to increase the creation of a U-shaped spring of increased strength, due to the absence of a cutout for placing a wheel on one flat part, while increasing the strength of this flat part, and also due to the fact that the flat parts have a greater thickness than the semicircular part.

[0005] The technical result achieved is by creating a U-shaped spring, made in the shape of the Latin letter U, and has upper and lower horizontal flat parts connected by a semicircular part, wherein the flat parts have elements for fastening, the lower flat part additionally has a cutout for placing a wheel, and the semicircular part is made with the possibility of deformation when a load occurs on the spring, wherein the flat parts have a greater thickness than the semicircular part.

[0006] In a preferred embodiment of the U-shaped spring, the flat parts are arranged parallel to each other or at an angle to each other.

[0007] In a preferred embodiment of the U-shaped spring, the fastening elements are formed in the form of holes, with the possibility of accommodating fastening bolts.

[0008] In a preferred embodiment of the U-shaped spring, the fastening elements on the upper flat portion are arranged opposite the fastening elements on the lower flat portion.

[0009] In a preferred embodiment of the U-shaped spring, the fastening elements located on the upper flat part are configured to fasten the spring, and the fastening elements located on the upper flat part are configured to fasten the wheel.

[0010] In a preferred embodiment, the U-shaped spring is made of a material selected from a set of materials containing metal, plastic and a composite material made by layering sheets of fiberglass, or basalt fabric, or carbon fabric into a prepared form with the application of a binding element in the form of resin.

[0011] For a better understanding of the claimed utility model, a detailed description with relevant graphic materials is provided below.

[0012] Fig. 1 - general view of a U-shaped spring, made according to the utility model.

[0013] Fig. 2 - U-shaped spring made according to the utility model: a) front view; b) side view; c) top view.

[0014] Fig. 3 - a variant of using a U-shaped spring together with a motor-wheel, made according to the utility model.

[0015] Fig. 4 - a variant of the implementation of a U-shaped spring with flat parts located at an angle to each other, made according to the utility model.

[0016] Elements:

[0017] 1 - U-shaped spring;

[0018] 2 - upper flat part;

[0019] 3 - lower flat part;

[0020] 4 - semicircular part;

[0021] 5 - elements for fastening the spring;

[0022] 6 - elements for fastening the wheel;

[0023] 7 - cutout for placing the wheel;

[0024] 8 - stroke limiter;

[0025] 9 - wheel.

[0026] Let us consider an embodiment of the proposed U-shaped spring (Fig. 1-4). The U-shaped spring 1 is made in the shape of the Latin letter U, and has upper and lower horizontal flat parts 2 and 3, connected by a semicircular part 4. When a load occurs on the spring 1, due to the deformation of the semicircular part 4, the flat parts 2 and 3 begin to converge towards each other, ceasing to be parallel, therefore the flat parts 2 and 3 are made not parallel to each other, but at a slight angle to compensate for the deformation of the spring 1 under load in a static position (Fig. 4). The upper flat part 2 has elements 5 for fastening the spring 1 to the vehicle body. The lower flat part 3 has elements 6 for fastening the wheel. Elements 5, 6 for fastening are made in the form of holes with the possibility of accommodating fastening bolts. Elements 5, 6 for fastening on the upper flat part are located opposite the elements for fastening on the lower flat part.The lower flat part 3 has a cutout 7 for the wheel. The semicircular part 4 deforms when the spring is loaded.

[0027] The upper and lower flat parts 2 and 3 are thicker than the semicircular part 4. This can improve the strength of the upper and lower flat parts 2 and 3, and also improve the elasticity of the semicircular part 4.

[0028] Spring 1 is made of a composite material, layered with sheets of fiberglass, basalt, or carbon fiber in a prepared mold, with a resin binder applied. This increases the strength of spring 1.

[0029] Spring 1 can be used together with wheel 9, which is attached to the lower flat part 3 of spring 1, and also together with travel limiter 8, which prevents excessive deformation of spring 1 and its collision with wheel 9 when the load is higher than the calculated one (Fig. 3).

[0030] Fig. 4 shows a possible variant of the cross-section of spring 1 without load, with the expectation that under a static load spring 1 will be deformed to a working shape in which flat parts 2 and 3 will become parallel to each other.

[0031] The proposed utility model allows for increased compactness of a leaf spring suspension. In cases of limited space, a U-shaped leaf spring 1 can be used, in which the frame mounting elements 5 and the wheel mounting elements 6 are located one above the other on the flat parts of the leaf spring 1, with damping achieved by deformation of the semicircular part 4. In this case, the lower flat part 3, to which the wheel 9 is attached, has a cutout 7 for accommodating the wheel 9. In this case, the dimensions of the leaf spring 1 may slightly exceed those of the wheel 9, allowing for greater compactness.

[0032] Although the above-described embodiment of the claimed utility model was set out for the purpose of illustrating the claimed utility model, it is clear to specialists that various modifications, additions and substitutions are possible that do not depart from the scope and meaning of the claimed utility model, as disclosed in the attached formula of the utility model.

Claims

1. A U-shaped spring, made in the shape of the Latin letter U, has upper and lower horizontal flat parts connected by a semicircular part, wherein the flat parts have fastening elements, the lower flat part additionally has a cutout for placing a wheel, and the semicircular part is made with the possibility of deformation when a load occurs on the spring, wherein the flat parts have a greater thickness than the semicircular part.

2. A U-shaped spring according to claim 1, characterized in that the flat parts are located parallel to each other or at an angle to each other.

3. A U-shaped spring according to paragraph 1, characterized in that the fastening elements are made in the form of holes, with the possibility of placing fastening bolts.

4. A U-shaped spring according to claim 1, characterized in that the fastening elements on the upper flat part are located opposite the fastening elements on the lower flat part.

5. A U-shaped spring according to claim 1, characterized in that the fastening elements located on the upper flat part are designed with the possibility of fastening the spring, and the fastening elements located on the upper flat part are designed with the possibility of fastening the wheel.

6. A U-shaped spring according to claim 1, characterized in that it is made from a material selected from a set of materials containing metal, plastic and a composite material made by layering sheets of fiberglass, or basalt fabric, or carbon fabric into a prepared form with the application of a binding element in the form of resin.

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