DESC:FIELD OF INVENTION

The present disclosure relates to dampers, and more particularly, to the propeller shaft dampers.

BACKGROUND OF THE INVENTION

A propeller shaft is a mechanical component that performs the function of transmitting the drive force generated by the engine to the axles in an automobile. While transmitting the drive force, the shaft is subjected to torque, rotation and shear stress, causing vibrations and noise. Propeller shaft dampers are components designed to reduce or eliminate the rotational vibrations and noise that thus result.

The propeller shaft dampers used in automobiles typically consist of the following components: a hub, an elastomer and a ring. Conventional propeller shaft dampers, represented in Figure 1, are circular in shape. Further, the elastomers used therein are segmented and are a result of the process of molding which takes place at the time of the manufacturing of the damper itself. Consequently, when the conventional dampers are subjected to excessive shear forces, the elastomer segments are unable to withstand the forces which cause the elastomer to shear and that results in damper failure.

Accordingly, there exists a need to provide the propeller shaft damper which overcomes abovementioned drawbacks.

OBJECTS OF THE INVENTION

It is an object of the present disclosure to provide a propeller shaft damper.

It is another object of the present disclosure to provide a process for manufacture of the propeller shaft damper.

It is yet another object of the present disclosure to provide a propeller shaft damper which is simple in construction and durable.

It is still another object of the present disclosure to provide a process for manufacture of the propeller shaft damper which is cost-efficient and time-efficient.

SUMMARY OF THE INVENTION

Accordingly, the present invention provides a propeller shaft damper. The propeller shaft damper includes at least one hub (102) having outer margin in the shape of a quadrilateral. The hub (102) includes a plurality of the holes adapted thereon for fitting the damper (100). The propeller shaft damper (100) further comprises at least one pre-molded elastomer (104) configured around the hub (102) forming a quadrilateral shape. In preferred embodiment, the pre-molded elastomer (104) is non-segmented. The propeller shaft damper (100) furthermore comprises at least one ring (106) having inner periphery in quadrilateral shape and outer periphery in circular shape. The ring (106) is configured around the elastomer (104). The hub (102), the elastomer (104) and the ring (106) of the propeller shaft damper (100) are assembled in rubber in compression type.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS

The present disclosure is explained with the help of the following non-limiting drawings.

Figure 1 illustrates a common embodiment of a conventional propeller shaft damper.

Figure 2 illustrates one embodiment of the propeller shaft damper (100) of the present disclosure.

¬DESCRIPTION OF THE INVENTION

In accordance with one aspect, the present disclosure provides a propeller shaft damper (100) for use in automobiles. In accordance with another aspect, the present disclosure provides a process of manufacture of the afore-stated propeller shaft damper (100) used in automobiles. The features, functionalities, raw material, components and conditions of operation, parameters and specifications of the product and process of the present disclosure include but are not limited to the disclosure herein below.

The propeller shaft damper (100) of the present disclosure aims to mitigate the afore-stated drawback. One embodiment of the propeller shaft damper of the present disclosure (100) is represented in Figure 2. The propeller shaft damper (100) of the present disclosure includes but is not limited to at at least one hub (102) having outer margin in the shape of a quadrilateral. The hub (102) includes a plurality of the holes adapted thereon for fitting the damper (100) to the shaft.

The propeller shaft damper (100) further comprises at least one pre-molded elastomer (104) configured around the hub (102) forming a quadrilateral shape. In preferred embodiment, the pre-molded elastomer (104) is non-segmented.

The propeller shaft damper (100) furthermore comprises at least one ring (106) having inner periphery in quadrilateral shape and outer periphery in circular shape. The ring (106) is configured around the elastomer (104). The hub (102), the elastomer (104) and the ring (106) of the propeller shaft damper (100) are snap fit together by compressed fitting.

The elastomer (104) of the propeller shaft damper of the present disclosure is non-segmented. Being non-segmented, the elastomer (104) is more durable than a segmented elastomer. Further, the elastomer (104) of the propeller shaft damper of the present disclosure is pre-molded. Pre- molded elastomers having specific, pre-determined dimensions are used in making the damper of the present disclosure (100). As the elastomers (104) are pre-molded, the damper (100) as a unit, becomes economical and the process of manufacture becomes time-efficient.

Even further, the elastomer (104) is in the shape of a quadrilateral which gives the elastomer the ability to withstand the excessive shear forces when subjected to vibrations. In one embodiment, the elastomer (104) is in the shape of a rectangle. The outer margin of the hub (102) is in the shape of a quadrilateral. In one embodiment, the outer margin of the hub (102) is in the shape of a rectangle. The inner margin of the ring (106) is in the shape of a quadrilateral. In one embodiment, the inner margin of the ring (106) is in the shape of a rectangle. The characteristic design of all the three components of the damper makes the damper robust and resistant to failure.

The process of manufacture of the propeller shaft damper of the present disclosure (100) includes but is not limited to the step of compressing pre-molded elastomers (104) at the time of manufacturing the damper of the present disclosure (100). Previously molded elastomers having specific, pre-determined dimensions are compressed at the time of manufacturing the damper as opposed to molding the elastomer at the time of manufacturing the damper. Further, the elastomer (104) is non-segmented. This makes the damper (100) more durable and withstand the excessive shear forces when subjected to vibrations.

The present disclosure, in another aspect, provides a kit for use as propeller shaft damper.

The embodiments described herein above are non-limiting. The foregoing descriptive matter is to be interpreted merely as an illustration of the concept of the present disclosure and it is in no way to be construed as a limitation. Description of terminologies, concepts and processes known to persons acquainted with technology has been avoided to preclude beclouding of the afore-stated embodiments.

TECHNICAL ADVANTAGES AND ECONOMIC SIGNIFICANCE

The technical advantages and economic significance of the propeller shaft damper (100) and process of manufacturing of the damper of the present disclosure include but are not limited to:
- the elastomer and therefore the damper is more durable
- use of pre-molded elastomers make the damper as a unit economical
- the process of manufacture of damper is time-efficient
- the characteristic design of the damper gives it the ability to withstand the excessive shear forces when subjected to vibrations.
- the characteristic design of all the three components of the damper makes the damper robust and resistant to failure.

,CLAIMS:We Claim:

1. A propeller shaft damper comprising:
at least one hub (102) having outer margin in the shape of a quadrilateral, the hub (102) having a plurality of the holes;
at least one pre-molded elastomer (104) configured around the hub(102) forming a quadrilateral shape, the pre-molded elastomer (104) is non-segmented; and
at least one ring (106) having inner periphery in quadrilateral shape and outer periphery in circular shape, the ring (106) configured around the elastomer (104) ,
wherein the hub (102), the elastomer (104) and the ring (106) are assembled in rubber in compression type.

2. The propeller shaft damper as claimed in claim 1, wherein the pre-molded elastomer (104) is compressed at the time of manufacturing the propeller shaft damper.

3. The propeller shaft damper as claimed in claim 1, wherein the elastomer (104) is in the shape of a rectangle.

4. The propeller shaft damper as claimed in claim 1, wherein the inner margin of the ring (106) is in the shape of a rectangle.

5. The propeller shaft damper as claimed in claim 1, wherein the outer margin of the hub (102) is in the shape of a rectangle.