FIELD OF THE INVENTION

The present invention relates to isolating suspended loads techniques and in particular to, a system for isolating suspended loads from impact forces generated on wheel side in vehicles.

BACKGROUND OF THE INVENTION

In today’s world typically all mobility systems reduce reaction forces originating from impact forces by means of several suspending and dampening methods consisting of a combination of compression springs, hydraulic and pneumatic cylinders, torsion bars, struts, leaf springs etc.

Hydraulic and Pneumatic shock absorbers work on the principle of compression of fluids, working in conjunction with compression springs to reduce reaction forces acting on suspended parts of industrial systems and mobility system like Cars, two wheelers, railways, earth moving equipment, trucks, aeroplane landing and take-off etc.

Typically, compression springs and leaf springs etc, causes instability and unwanted movements on the suspended parts in uneven and oscillatory movement after the impact.

The torsion bars and struts are used for negotiating centrifugal forces, but these also intensify reaction forces acting on suspended system.

Moreover, number of existing solutions for mitigating impact forces involves dampening vertically of the resultant reaction forces. Hence, complete dampening is never achieved. Further, due to uneven surface of roads, tracks etc, parts of the mobility system are subjected to irregular reaction forces of high magnitude and in varied directions. In case of distributed suspension or shock absorbers, there are potential unequal reaction forces acting on individual shock absorbers - which gives rise to potential toppling moment.

None of the above-described methods provide sufficient traction force opposite to reaction force for ensuring continued contact of suspended load with surface on which it is moving.

Hence, there is a need to overcome above disadvantages and shortcomings of existing solutions to isolate suspended loads from impact forces generated on wheel side in vehicles.

OBJECT OF THE INVENTION

An object of the present invention is to provide a system for isolating suspended loads from impact forces generated on wheel side in vehicles.

Another object of the present invention is to provide a system for isolating suspended load from reaction forces generated due to impact loadings.

Yet another object of the present invention is to convert vertical reaction forces into horizontal rotary motion.

Yet another object of the present invention is to use the torsion spring within the limits of the bending angles of the arms to redirect the reaction forces due to Impact and store the impact energy as rotational energy.

Yet another object of the present invention is to convert vertical reaction forces into horizontal rotary motion by use of torsion springs at multiple locations and variable lengths.

Yet another object of the present invention is to use torsion spring wherein one arm of the torsion spring is connected to the reaction force end and other arm connected to suspended load end wherein it is fastened to withstand horizontal, vertical or oblique forces.

Yet another object of the present invention is to convert vertical reaction forces into horizontal rotary motion by use of torsion springs by absorbing instantaneous reaction forces into torsion spring stored energy and instantly releasing back the moment when reaction force ceases.

Yet another object of the present invention is to use of torsion springs of varying diameter wherein largest diameter is always at the reaction force end and smallest diameter is at suspended load end.

Yet another object of the present invention is to use of torsion springs of varying pitch wherein largest pitch shall be at reaction force side of the torsion spring.

Yet another object of the present invention is to use a torsion spring system having multiple arrangements, locations, spring rate and installed in series and or parallel arrangements.

Yet another object of the present invention is to use a torsion spring system to generate sufficient traction force to keep the wheels grounded.

Yet another object of the present invention is to utilize the system for isolating suspended loads from impact forces generated in relevant industrial applications.

Yet another object of the present invention is to provide a system for isolating suspended load from impact forces generated on wheel side in vehicles. The system comprising a torsion spring, a cylindrical mandrel, a suspended load and an axle. Yet another object of the present invention is to configure the torsion spring to absorb the reaction force in form of potential energy in the first portion of the torsion spring near to the axle to isolate the suspended load from impact forces.

Yet another object of the present invention to transfer generated kinetic energy back to the axle for faster traction and reduction of subsequent cycle of reaction force generation.

Yet another object of the present invention to isolate the suspended load from impact forces by varying value of cone diameter of the torsion spring, diameter of coil rod of the torsion spring and distance between coils of the torsion spring for designing the torsion spring alone or in combination.

SUMMARY OF THE PRESENT INVENTION

The present invention is described hereinafter by various embodiments. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiment set forth herein. Rather, the embodiment is provided so that this disclosure will be thorough and complete and will fully convey the scope of the invention to those skilled in the art.

Embodiments of the present invention aim to provide a system for isolating suspended loads from impact forces generated on wheel side in vehicles. The present invention employs torsion spring to change the direction of vertical or oblique impact forces to horizontal direction and also change the linear forces to rotary stored energy.

In accordance with an embodiment of the present invention, the system employs a torsion spring within the limits of the bending angles of the arms to withstand the reaction forces due to shock generated. The reaction force acts on the arm connected to the axle which produces bending moment in the arm. This bending moment transfers the force into rotational compressive force into the spring. Thus, the reaction force is dampened and as soon as the impact force disappears, the stored energy in the rotationally compressed torsion spring instantly releases the energy back to the axle by means of reverse force. This reverse force contributes towards better traction.

In accordance with an embodiment of the present invention, higher compression is achieved by using higher diameter and/or pitch in the same spring at the impact force end connected to the axle and comparatively minimal compression is achieved at the lower diameter and/or pitch of the spring which is connected to the suspended load end, thereby minimizing the reaction forces acting on the load.

Embodiment of the present invention discloses a system for isolating suspended load from impact forces generated on wheel side in vehicles is disclosed. The system comprising a torsion spring having a first arm and a second arm, a cylindrical mandrel provided axially inside the torsion spring, the cylindrical mandrel is supported on an axle by supporting rods, a suspended load which is connected with the second arm of the torsion spring and the axle is connected with the first arm of the torsion spring. Further, a reaction force generated during an impact is transferred from the axle to the torsion spring. Furthermore, the torsion spring is configured to absorb the reaction force in form of potential energy in a first portion of the torsion spring near to the axle to isolate the suspended load from impact forces. Thereafter, the potential energy in the torsion spring is released in opposite direction and converted into kinetic energy when the impact force ceases. Moreover, the generated kinetic energy is transferred back to the axle for faster traction and reduction of subsequent cycle of reaction force generation.

In accordance with an embodiment of the present invention, the suspended load is connected with the torsion spring at second arm using a first fastener to withstand horizontal, vertical and/or oblique forces on the suspended load.

In accordance with an embodiment of the present invention, parameters of the first portion of the torsion spring configured to capture the impact force acting on the torsion spring.

In accordance with an embodiment of the present invention, distance between coils of the torsion spring is more near to the axle as compared to distance between coils of the torsion spring near to the suspended load thereby isolating the suspended load from impact forces.

In accordance with an embodiment of the present invention, diameter of coil rod of the torsion spring is more near to the axle as compared to diameter of coil rod of the torsion spring near to the suspended load thereby isolating the suspended load from impact forces.

In accordance with an embodiment of the present invention, cone diameter of the torsion spring is more near to the axle as compared to cone diameter of the torsion spring near to the suspended load thereby isolating the suspended load from impact forces.

In accordance with an embodiment of the present invention, cone diameter of the torsion spring, diameter of coil rod of the torsion spring and distance between coils of the torsion spring can be varied for designing the torsion spring alone or in combination.

In accordance with an embodiment of the present invention, the torsion spring is employed in multiple arrangements, locations, spring rate and installed in series and/or parallel arrangements.

In accordance with an embodiment of the present invention, length of the first arm and the second arm is varied in length and direction. BRIEF DESCRIPTION OF DRAWINGS

So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may have been referred by examples, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only typical examples of this invention and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective examples.

These and other features, benefits, and advantages of the present invention will become apparent by reference to the following text figure, with like reference numbers referring to like structures across the views, wherein:

Fig. 1 illustrates a system for isolating suspended loads from impact forces generated on wheel side in vehicles, in accordance with an embodiment of the present invention;

Fig. 2 illustrates the system of figure 1 having varying distance between coils of the torsion spring, in accordance with an embodiment of the present invention;

Fig. 3 illustrates the system of figure 1 having varying diameter of coil rod of the torsion spring, in accordance with an embodiment of the present invention;

Fig. 4 illustrates an exemplary embodiment of the system of figure 1 , in accordance with an embodiment of the present invention;

Fig. 5 illustrates a plurality of torsion springs being arranged in parallel, in accordance with an embodiment of the present invention; and Fig. 6 illustrates a plurality of torsion springs being arranged in series, in accordance with an embodiment of the present invention.

DETAILED DESCRIPTION OF THE DRAWINGS

The present invention is described hereinafter by various embodiments with reference to the accompanying drawing, wherein reference numerals used in the accompanying drawing correspond to the like elements throughout the description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiment set forth herein. Rather, the embodiment is provided so that this disclosure will be thorough and complete and will fully convey the scope of the invention to those skilled in the art. In the following description, numeric values and ranges are provided for various aspects of the implementations described. These values and ranges are to be treated as examples only and are not intended to limit the scope of the invention In addition, a number of materials are identified as suitable for various facets of the implementations. These materials are to be treated as exemplary and are not intended to limit the scope of the invention.

It will be understood by those skilled in the art that the foregoing general description and the following detailed description are exemplary and explanatory of the invention and are not intended to be restrictive thereof.

The terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, Appearances of the phrase "in an embodiment", "in another embodiment" and similar language throughout this specification may, but not necessarily do, all refer to the same embodiment. As used throughout this description, the word "may" is used in a permissive sense (i.e. meaning having the potential to), rather than the mandatory sense, (i.e. meaning must). Further, the words "a" or "an" mean "at least one” and the word “plurality” means “one or more” unless otherwise mentioned. Furthermore, the terminology and phraseology used herein is solely used for descriptive purposes and should not be construed as limiting in scope.

The systems, methods, and examples provided herein are only illustrative and not intended to be limiting. The system for isolating suspended loads from impact forces generated on wheel side in vehicles of the present invention can be understood by way of following embodiments below:

Figure 1 illustrates a system (100) for isolating suspended loads from impact forces generated on wheel side in vehicles, in accordance with an embodiment of the present invention. As shown in figure 1 , the system (100) comprises, but not limited to, a torsion spring (1 10), a cylindrical mandrel (109), a suspended load (1 14) and an axle (102). The torsion spring is selected from a group comprising, but not limited to, a helical torsion spring, conical torsion spring. As shown in the figure 1 , the torsion spring (110) having a first arm (1 12) and a second arm (108). The length of the first arm (1 12) and the second arm (108) is varied in length and direction.

Further, the first arm (1 12) of the torsion spring (110) is connected with the axle (102). Furthermore, the suspended load (1 14) is connected with the second arm (108) of the torsion spring (1 10) by using a first fastener (1 16). The first fastener (1 16) is used to withstand horizontal, vertical and/or oblique forces on the suspended load (1 14). Also, as shown in the figure 1 , the cylindrical mandrel (109) is placed axially inside the torsion spring (1 10) to provide stability to the torsion spring (110). The cylindrical mandrel (109) is supported on the axle (1 18) by supporting rods (1 181 , 1 182).

In accordance with an additional or alternative embodiment of the present invention, the system (100) has varying diameter of coil rod of the torsion spring (1 10). As shown in figure 1 , diameter of coil rod of the torsion spring (110) is more near to the axle (102) as compared to diameter of coil rod of the torsion spring (110) near to the suspended load (114). The varying diameter of the coil rod isolates the suspended load (1 14) from impact forces. The difference in the diameter corresponding to spring rate enables absorption of impact forces in the first portion (1 101 ) of the torsion spring (1 10) thereby preventing impact forces from travelling to the suspended load (114).

Figure 2 illustrates a system (200) for isolating suspended loads (214) having varying distance between coils of the torsion spring (210), in accordance with an embodiment of the present invention. As shown in the figure 2, distance between coils of the torsion spring (210) is more near (218) to the axle (202) as compared to distance between coils of the torsion spring (210) near (218’) to the suspended load (214). The varying distance between the coils isolates the suspended load from impact forces. The varying distance between the coils corresponding to varying spring rate enables absorption of impact forces in the first portion (2101 ) of the torsion spring (210) thereby preventing impact forces from travelling to the suspended load (214).

Figure 3 illustrates a system (300) for isolating suspended load (314) having varying cone diameter of the torsion spring (310), in accordance with an embodiment of the present invention. As shown in the figure 3, the cone diameter of the torsion spring (310) is more near to the axle (302) as compared to cone diameter of the torsion spring (310) near to the suspended load (314). The varying cone diameter isolates the suspended load (314) from impact forces. The varying cone diameter corresponding to varying spring rate enables absorption of impact forces in the first portion (3101 ) of the torsion spring (310) thereby preventing impact forces from travelling to the suspended load (314).

Further, cone diameter of the torsion spring (310), diameter of coil rod of the torsion spring (1 10) and distance between coils of the torsion spring (210) can be varied for designing the torsion spring alone or in combination. Figure 4 illustrates an exemplary embodiment of the system of figure 1 , in accordance with an embodiment of the present invention. As shown in figure 4, the plurality of torsion spring (400A, 400B, 400C, 400D) are employed in multiple arrangements, locations, spring rate and installed in series and/or parallel arrangements. However, connected with a single suspended load (445). The structural features of the torsion spring and the arrangement with suspended is same as elaborated in the figures 1 to 3 and the same are not repeated here for sake of brevity.

Figure 5 illustrates a plurality of torsion springs (500A, 500B, 500C, 500D) being arranged in parallel, in accordance with an embodiment of the present invention. As shown in figure 5, the suspended load (555) is connected with the torsion springs (500A, 500B, 500C, 500D) arranged in parallel using respective second arms (542A, 542B, 542C, 542D) to respective axles (545A, 545B, 545C, 545D). However, connected with a single suspended load (5). The structural features of the torsion spring and the arrangement with suspended is same as elaborated in the figures 1 to 3 and the same are not repeated here for sake of brevity.

In addition, figure 6 illustrates a plurality of torsion springs (500A, 500B, 500C, 500D) being arranged in series, in accordance with an embodiment of the present invention. As shown in the figure 6, the torsion springs (500A, 500B, 500C, 500D) are connected with a suspended load at two points (555, 555’) using respective second arms (542A, 542B, 542C, 542D) to respective axles (545A, 545B, 545C, 545D).

The system for isolating suspended loads from impact forces generated on wheel side in vehicles disclosed in the present invention offers several advantages viz:

1 . Shock dampening by changing direction of Impact reaction force

2. No heat generation during shock diverting process

3. Higher efficiency. 4. Cheaper installation and material cost

5. Maximum isolation of impact forces acting on suspended load

6. Better traction to achieve higher acceleration

7. Lower maintenance cost and consumables

Although the foregoing description of the present invention has been shown and described with reference to particular embodiments and applications thereof, it has been presented for purposes of illustration by way of examples and description and is not intended to be exhaustive or to limit the invention to the particular embodiments and applications disclosed. The particular embodiments and applications were chosen and described to provide the best illustration of the principles of the invention and its practical application to thereby enable one of ordinary skill in the art to utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated. All such changes, modifications, variations, and alterations should therefore be seen as being within the scope of the present invention as determined by the appended claims when interpreted in accordance with the breadth to which they are fairly, legally, and equitably entitled.

Various modifications to these embodiments are apparent to those skilled in the art from the description and the accompanying drawings. The principles associated with the various embodiments described herein may be applied to other embodiments. Therefore, the description is not intended to be limited to the embodiments shown along with the accompanying drawings but is to be providing broadest scope of consistent with the principles and the novel and inventive features disclosed or suggested herein. Accordingly, the invention is anticipated to hold on to all other such alternatives, modifications, and variations that fall within the scope of the present invention and appended claims.