Jack assembly for raising and lowering vehicles

The various embodiments herein provide a jack assembly for raising and lowering the vehicles. The assembly comprises a base sheet mounted with two lower arms, a retentive sheet mounted with two upper arms and two shafts. The two upper arms are pivotably connected to the lower arms respectively through the two shafts. A wire rope is passed over a groove provided on a plurality of pulleys rotatably mounted on one of the two shafts. A spanner and a jack handle are provided respectively on the two shafts. When the jack handle is pulled up, the two ends of wire ropes move towards each other to make the two shafts to approach towards each other thereby displacing the lower arms and upper arms to lift the retentive sheet for raising the vehicles with a single pull movement of the jack handle.

BACKGROUND

1. Technical Field

The embodiments herein generally relates to a jack assembly for raising and lowering a vehicle. The embodiments herein more particularly relate to a one beat jack assembly to raise the vehicles.

2. Description of the Related Art

Often, there exists hassle for serious injury involved with jacking up a vehicle along the side of the road. There can be trouble in getting the jack assembled and placing the jack under the frame or axle of a vehicle. There also exists a possibility of injuring the hands or fingers of an operator while operating the jack. Moreover, there involves a safety concern of a vehicle falling off the jack, while the tire is being changed during a raising or lowering operation of the vehicle.

Hence there is a need for a jack assembly for raising and lowering a body without a need for providing a large amount of force from an individual to operate the jack assembly.

The abovementioned shortcomings, disadvantages and problems are addressed herein and which will be understood by reading and studying the following specification.

OBJECTS OF THE EMBODIMENTS

The primary object of the embodiments herein is to provide a jack assembly for raising or lowering body of a vehicle with a single movement of the jack.

Another object of the embodiments herein is to provide a jack assembly without requiring a large amount of force from an individual to operate the jack assembly.

Yet another object of the embodiments herein is to provide a jack assembly which is used under all parts of a vehicle body without any body force or proficiency.

SUMMARY

The various embodiments herein provide a jack assembly for raising and lowering a vehicle. The jack assembly comprises at least two shafts, a base sheet and a retentive sheet. At least two upper arms are fastened to the retentive sheet and at least two lower arms are fastened to the base sheet. A spanner is provided on one of the at least two shafts. A plurality of pulleys are provided on one of the at least two shafts. A groove is provided on each of the plurality of pulleys. A jack handle or closed holder lever is provided on one of the at least two shafts. A plurality of wire ropes is passed over each of the plurality of pulleys. When the jack handle is pulled up, the two ends of wire ropes are moved towards each other and the at least two shafts are moved to approach each other thereby displacing the at least two lower arms and the at least two upper arms to lift the retentive sheet to raise the vehicles with a single pull movement of the jack handle.

According to one embodiment herein, a first end of the wire ropes is attached to the spanner and a second end of the wire ropes passed over the groove in the pulleys is fastened to the jack handle. The jack assembly also includes a moving part. A hole is provided in the jack assembly through which the moving part moves. A winding regulation screw is provided in the moving part. A tail piece is attached to one of the at least two shafts associated with the jack handle and provided with an opening. The second end of the wire ropes is attached by a girth to the tailpiece through the opening. The at least two shafts comprises either a shift or ball bearing for easy movement of the at least two upper arms and the at least two lower arms in the jack assembly. A plurality of rakes are provided on one of the at least two shafts.

A first hole is provided at one end of the at least two upper arms for placing the shift or the ball bearing. A second hole is provided at another end of each of the at least two upper arms for fastening each of the at least two upper arms to the retentive sheet. The at least two upper arms are fastened to the retentive sheet through at least two junction pins respectively.

A third hole is provided at one end of each of the at least two lower arms for placing the shift or the ball bearing and a fourth hole is provided at another end of each of the at least two lower arms for fastening each of the at least two upper arms to the base sheet. The at least two lower arms are fastened to the base sheet through at least two junction pins respectively.

The at least two upper arms are a first upper arm and a second upper arm and the at least two lower arms are a first lower arm and a second lower arm. The first upper arm and the first lower arm are attached to each other and pivoted on one of the at least two shafts. The second upper arm and the second lower arm are attached to each other and pivoted on one of the at least two shafts. Each of the at least two upper arms and each of the at least two lower arms are provided with at least two holes.

The jack assembly further comprises a first spring and a second spring. The second spring is a closed holding spring. A handle forming junction for the first spring and the second spring is provided in the jack assembly. A closed holding handle is attached to the first spring and to one of the at least two junction pins associated with the lower arms. The second spring is attached to the closed holding handle and to one of the at least two pins associated with the upper arms.

Further, the jack assembly comprises a rattle assembly, a rattle lock, a third spring and a retentive holder. A rattle is arranged with the rattle lock. The third spring collector spring is provided in the rattle lock. According to one embodiment, the third spring is a collector spring. One end of the third spring is attached to the rattle lock and the other end of the third spring is attached to the closed holding handle. The rattle lock is connected to the retentive holder through a retentive holding pin.

According to the embodiments herein, a jack assembly is provided with different numbers of pulleys for achieving different powers. The power of the jack assembly depends on the number of pulleys provided in the jack assembly. For example, in the jack assembly involving a single pulley, the power of each pulley is equal to 2 regardless of the power of the jack handle and then the power of jack assembly is equal to 3 (1+2=3). Further considering the power of the jack handle, the power of jack assembly is equal to 30 (1+2×10=30). Thus, it is understood easily that the power of jack assembly including two pulleys is equal to 50 (2×2+1×10=50) based on the above principle. Similarly the power of jack assembly including three pulleys is equal to 90 (2×2×2+1×10=90), the power of jack assembly including four pulleys is equal to 170 (2×2×2×2+1×10=170) and the power of jack assembly including five pulleys is equal to 330 (2×2×2×2×2+1×10=330).

According to the embodiments herein, the jack assemblies involving high power are used in heavy vehicles. The numbers of pulleys vary considerably between a single pulley to seven pulleys depending on the power required by the jack assembly. According to requirement of the size and power of the jack assembly the length of the wire ropes vary considerably in the jack assembly. The selection of the tailpiece with respect to the size depends on the power and size required in the jack assembly. According to the embodiments herein, a sling or a hoop and rope is provided on the pulleys instead of wire ropes.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The various embodiments herein provide a jack assembly for raising and lowering a vehicle. The jack assembly comprises at least two shafts, a base sheet a retentive sheet. A spanner is provided on one of the at least two shafts. The assembly also includes at least two upper arms fastened to the retentive sheet and at least two lower arms fastened to the base sheet. A plurality of pulleys are provided on one of the at least two shafts. A groove is provided on each of the plurality of pulleys. A jack handle is provided on one of the at least two shafts and a plurality of wire ropes are provided on each of the plurality of pulleys. When the jack handle is pulled the wire ropes associated with each of the plurality of the pulleys moves and the at least two shafts approaches each other further, the at least two upper arms fastened to the retentive sheet are lifted for raising the vehicles with a single pull of the jack handle.

According to one embodiment herein first end of the wire ropes is attached to the spanner and second end of the wire ropes is attached to the groove is fastened to the jack handle. The jack assembly also includes a moving part. A hole is provided in the jack assembly through which the moving part moves. A winding regulation screw is provided in the moving part. A tail piece is attached to one of the at least two shafts associated with the jack handle. First end of the wire ropes is attached to the spanner and second end of the wire ropes is attached by a girth to the tailpiece through an opening provided in the tailpiece. The at least two shafts comprises one of a shift or ball bearing for easy movement of the at least two upper arms and the at least two lower arms in the jack assembly. A plurality of rakes are provided on one of the at least two shafts

A first hole is provided at one end of the at least two upper arms for placing the shift or the ball bearing. A second hole is provided at another end of each of the at least two upper arms for fastening each of the at least two upper arms to the retentive sheet. The at least two upper arms are fastened to the retentive sheet through at least two junction pins respectively.

A third hole is provided at one end of each of the at least two lower arms for placing the shift or the ball bearing and a fourth hole is provided at another end of each of the at least two lower arms for fastening each of the at least two upper arms to the base sheet. The at least two lower arms are fastened to the base sheet through at least two junction pins respectively.

The at least two upper arm are a first upper arm and a second upper arm and the at least two lower arms are a first lower arm and a second lower arm. The first upper arm and the first lower arm are attached to each other and pivoted on one of the at least two shafts. The second upper arm and the second lower arm are attached to each other and pivoted on one of the at least two shafts. Each of the at least two upper arms and each of the at least two lower arms are provided with at least two holes.

The jack assembly further comprises a first spring and a second spring. The second spring is a closed holding spring. A handle forming junction for the first spring and the second spring is provided in the jack assembly. The first spring is attached to a closed holding handle and one of the at least two pins associated with the lower arms. The second spring is attached to a closed holding handle and one of the at least two pins associated with the upper arms.

Further, the jack assembly comprises a rattle assembly, a rattle lock, a third spring and a retentive holder. A rattle is arranged with the rattle lock. The third spring collector spring is provided in the rattle lock. According to one embodiment, the third spring is a collector spring. One end of the third spring is attached to the rattle lock and the other end of the third spring is attached to the closed holding handle. The rattle lock is connected to the retentive holder through a retentive holding pin.

According to the embodiments herein, a jack assembly is provided with different numbers of pulleys for achieving different powers. The power of the jack assembly depends on the number of pulleys provided in the jack assembly. For example, in the jack assembly involving a single pulley, the power of each pulley is equal to 2 regardless of the power of the jack handle and then the power of jack assembly is equal to 3 (1+2=3). Further considering the power of the jack handle, the power of jack assembly is equal to 30 (1+2×10=30). Thus, it is understood easily that the power of jack assembly including two pulleys is equal to 50 (2×2+1×10=50) based on the above principle. Similarly the power of jack assembly including three pulleys is equal to 90 (2×2×2+1×10=90), the power of jack assembly including four pulleys is equal to 170 (2×2×2×2+1×10=170) and the power of jack assembly including five pulleys is equal to 330 (2×2×2×2×2+1×10=330).

According to the embodiments herein, the jack assemblies involving high power are used in heavy vehicles. The numbers of pulleys vary considerably between a single pulley to seven pulleys depending on the power required by the jack assembly. According to requirement of the size and power of the jack assembly the length of the wire ropes vary considerably in the jack assembly. The selection of the tailpiece with respect to the size depends on the power and size required in the jack assembly. According to the embodiments herein, a sling or a hoop and rope is provided on the pulleys instead of wire ropes.

FIG. 1illustrates a side view of a jack assembly according to one embodiment herein. With respect toFIG. 1, the jack assembly1is placed under a vehicle body33on a ground34and fixed to the vehicle body34. The jack assembly includes a first upper arm28aand a second upper arm28battached to a retentive sheet4. The first upper arm28ais attached to the retentive sheet4through a pin9and the second upper arm28bis attached to the retentive sheet4through the pin10. The retentive sheet includes a moving part6adapted to maneuver through a hole5. The moving part6is provided with a winding regulation screw31in form of a thread which is been attached to the vehicle body providing height adjustment for the jack assembly1during raising and lowering the vehicle body. At least one of the first upper arm and the second lower arm used are of same size.

The jack assembly1is remained stable in position until the retentive sheet4along with the part6is completely attached to the vehicle body. Also, the jack assembly includes a first lower arm28cand a second lower arm28d. The first lower arm28cand the second lower arm28dare pivoted to a base sheet2through pin7and pin8. The base sheet2is placed under the vehicle body33on the ground34. The first upper arm28aand the first lower arm28care attached to each other and pivoted on a shaft21. Similarly the second upper arm28band the second lower arm28dare attached to each other and pivoted on a shaft21a. The arms28a,28b,28cand28dprovided with bumps28eprovided on the arms which enables the arms28a,28b,28cand28dto move up equally during movement of the jack assembly. The shaft21and shaft21aare intermediate shafts provided in the jack assembly.

The jack assembly1further includes a jack handle25(as shown inFIG. 4), a plurality of pulleys26(as shown inFIG. 8) on each of the shaft21and shaft21a. The other end of the shaft21and21ais attached to a tail piece (as shown in4). The tail piece19includes a hole20(as shown inFIG. 10) for holding a plurality of wire ropes. When the jack handle25(as shown inFIG. 4) is pulled for the first time, the shaft21revolves which in turn causes the tail piece19to revolve and pull the wire ropes. Following the revolving action of the tail piece19, the pulley26moves, and the shaft21and the shaft21aapproach each other wresting the arms28a,28b,28c, and28d. Further due to wresting of the arms28a,28b,28c,28d, the base sheet2and the retentive sheet4recedes from each other causing the jack assembly to rise.

The jack assembly also includes a spring11, a closed holding spring12, a handle13and a closed holding handle14. The spring11is attached to the pin8and the closed holding handle14to keep the jack assembly1closed. The closed holding spring12is attached to the pin10and the closed holding handle14of the jack assembly1from both sides. The handle13forms a junction for the spring11and the closed holding spring12. Further, the jack assembly1includes a rattle assembly comprising of a rattle lock16, a rattle17associated with the rattle lock16and a collector spring15associated with the rattle lock16.

The collector spring15is attached to the lock16and the closed holding handle14from two ends. When the jack handle25(as shown inFIG. 4) is pulled, the shaft21revolves which in turn revolves the rattle17thereby stopping the movement of the jack handle25which in turn stops the rotation of the rattle17. The rattle lock16fixes the jack assembly1by fixing the rattle17in its place. Furthermore when the closed holding handle14recedes the collector spring gets activated. When the jack handle25is pulled second time the rattle lock16rises and releases the rattle17and brings the jack assembly1to its initial position.

FIG. 2illustrates a side view of a jack assembly without a rattle assembly according to one embodiment herein. With respect toFIG. 2, the jack assembly1is placed under a vehicle body33on a ground34and attached to the vehicle body. One movement jack assembly1includes a first upper arm28aand a second upper arms28a28battached to a retentive sheet4. The first upper arm28aand second upper arm28bare attached to the retentive sheet4through pin9and pin10. The retentive sheet includes part6moving through a hole5. The part6is provided with a winding regulation screw31in form of a thread which is been attached to the vehicle body providing height adjustment for the jack assembly during rising and lowering the vehicle body.

The jack assembly is remained stable in position until the part6is completely attached the vehicle body. Also, the jack assembly includes a first lower arm28cand a second lower arm28d. The first lower arm28cand the second lower arm28dare attached or pivoted to a base sheet2through pin7and pin8. The base sheet2on the ground34is placed lower the vehicle body33. The first upper arm28aand the first lower arm28care attached to each other and pivoted on a shaft21a, similarly the second upper arm28band the second lower arm28dare attached to each other and pivoted on a shaft21a. Bumps28eprovided on the arms28a,28b,28cand28dhelp arms go up equally during movement of the jack assembly.

FIG. 3illustrates a top view of jack assembly according to one embodiment herein. With respect toFIG. 3, the jack assembly1includes a first upper arm28aattached to a retentive sheet4. The first upper arm28aand second upper arm28bare attached to the retentive sheet4through pin9and pin10(as shown inFIG. 1). The retentive sheet includes part6moving through a hole5(as shown inFIG. 1).

The figure includes pulley26attached to a shaft18associated with the jack handle25(as shown inFIG. 1). The jack assembly also includes a rattle lock16, a rattle17associated with the rattle lock16. The rattle17forming the part of the rattle lock16is connected to the shaft18. The rattle lock16is attached to holder base of the jack handle25through a retentive holding pin30. The jack assembly is remained stable in position until the part6is completely attached the vehicle body.

FIG. 4illustrates side view of jack assembly along with jack handle according to one embodiment herein. With respect toFIG. 4the jack assembly1includes a first upper arm28aand a second upper arms28a28battached to a retentive sheet4. The first upper arm28aand second upper arm28bare attached to the retentive sheet4through pin9and pin10. The retentive sheet includes part6moving through a hole5. The part6is provided with a winding regulation screw31in form of a thread which is been attached to the vehicle body providing height adjustment for the jack assembly during rising and lowering the vehicle body.

The jack assembly is remained stable in position until the part6is completely attached the vehicle body. Also, the jack assembly includes a first lower arm28cand a second lower arm28d. The first lower arm28cand the second lower arm28dare attached or pivoted to a base sheet2through pin7and pin8. The base sheet2on the ground34is placed under the vehicle body33. The first upper arm28aand the first lower arm28care attached to each other and pivoted on a shaft21a, similarly the second upper arm28band the second lower arm28dare attached to each other and pivoted on a shaft21a. Bumps28eprovided on the arms28a,28b,28cand28dhelp arms go up equally during movement of the jack assembly.

Further the jack assembly1includes a jack handle25(as shown inFIG. 4), plurality of pulleys26(as shown inFIG. 8) on each of the shaft21and shaft21a. The other end of the shaft21and21ais attached to a tail piece19(as shown in4). The tail piece19includes a hole20(as shown inFIG. 10) for holding plurality of wire ropes. When the jack handle25(as shown inFIG. 4) is pulled for the first time the shaft21revolves which in turn causes the tail piece19to revolve and pull the wire ropes. Following the revolving action of the tail piece19the pulley26moves and the shaft21and the shaft21aapproach each other wresting the arms28a,28b,28c, and28d. Further due to wresting of the arms28a,28b,28c,28dthe base sheet2and the retentive sheet4recedes from each other causing the jack assembly to rise.

The jack assembly also includes a spring11, a closed holding spring12, a handle13and a closed holding handle14. The spring11is attached to the pin8and the closed holding handle14keeping the jack assembly1closed. The one end of the spring is attached to the pin10and other end of the spring is attached to the closed holding handle14of the jack assembly. The handle13forms junction for the spring11and the closed holding spring12. Further, the jack assembly1includes a rattle assembly comprising of a rattle lock16, a rattle17associated with the rattle lock16, a collector spring15associated with the rattle lock16.

The collector spring15is attached to the lock16and the closed holding handle14from two ends. When the jack handle25(as shown inFIG. 4) is pulled the shaft21revolves which in turn revolves the rattle17stopping the jack handle25Following the stopping action of the jack handle25the rattle17also stops. The rattle lock16fixes the jack assembly1by fixing the rattle17in its place. Furthermore when the closed holding handle14recedes the collector spring gets activated. When the jack handle25is pulled second time the rattle lock16rises and releases the rattle17bringing the jack assembly1to its initial position. The rattle lock16is attached to holder base of the jack handle25through a pin30. The jack assembly is remained stable in position until the part6is completely attached the vehicle body.

FIG. 5illustrates a top view of jack assembly according to one embodiment herein. With respect toFIG. 5W, the jack assembly1includes a first upper arm28aand a second upper arm28battached to a retentive sheet4(as shown inFIG. 1). The first upper arm28aand second upper arm28bare attached to the retentive sheet4through pin9and pin10(as shown inFIG. 1). The retentive sheet includes part6moving through a hole5(as shown inFIG. 1). A retentive jack holder3is fixed on the base sheet2through pins7and8(as shown inFIG. 1).

The figure includes a rake21bwhich provided instead of a pulley26a. in various embodiments of the present invention the total number of rakes created on the shaft21depends on need of a user. With creating of each of the rake21bthe number of usage of pulleys26in the jack assembly1reduces. The jack assembly also includes a rattle lock16, a rattle17associated with the rattle lock16. The rattle17forming the part of the rattle lock16is connected to a shaft18of jack handle25. The rattle lock16is connected to the retentive holder3through the pin30. The jack assembly is remained stable in position until the part6is completely attached the vehicle body. The figure also shows a tail piece19. The tail piece19includes a hole20(as shown inFIG. 10) for holding plurality of wire ropes.

FIG. 6illustrates side view of jack assembly according to one embodiment herein. With respect toFIG. 6. The jack assembly1is placed under a vehicle body33on a ground34and attached to the vehicle body. One movement jack assembly1includes a first upper arm28aand a second upper arms28a28battached to a retentive sheet4. The first upper arm28aand second upper arm28bare attached to the retentive sheet4through pin9and pin10. The retentive sheet includes part6moving through a hole5. The part6is provided with a winding regulation screw31in form of a thread which is been attached to the vehicle body providing height adjustment for the jack assembly during rising and lowering the vehicle body. A retentive jack holder3is fixed on the base sheet2through pins7and8.

The jack assembly is remained stable in position until the part6is completely attached the vehicle body. Also, the jack assembly includes a first lower arm28cand a second lower arm28d. The first lower arm28cand the second lower arm28dare attached or pivoted to a base sheet2through pin7and pin8. The base sheet2on the ground34is placed under the vehicle body33. The first upper arm28aand the first lower arm28care attached to each other and pivoted on a shaft21a, similarly the second upper arm28band the second lower arm28dare attached to each other and pivoted on a shaft21a. Bumps28eprovided on the arms28a,28b,28cand28dhelp arms go up equally during movement of the jack assembly.

Further the jack assembly1includes a jack handle25, two shafts a shaft21and shaft21a. Each of the shaft21and21aincludes a shift22for easy movements of the upper arms28a,28band lower arms28cand28d. The other end of the shaft21and21ais attached to a tail piece19. The tail piece19includes a hole20(as shown inFIG. 10) for holding plurality of wire ropes. When the jack handle25is pulled for the first time the shaft21revolves which in turn causes the tail piece19to revolve and pull the wire ropes. Following the revolving action of the tail piece19the rake21b(as shown inFIG. 5) moves, and the shaft21and the shaft21aapproach each other wresting the arms28a,28b,28c, and28d. Further due to wresting of the arms28a,28b,28c,28dthe base sheet2and the retentive sheet4recedes from each other causing the jack assembly1to rise.

The jack assembly also includes a spring11, a closed holding spring12, a handle13and a closed holding handle14. The spring11is attached to the pin8and the closed holding handle14keeping the jack assembly1closed. The spring is attached to the pin10and the closed holding handle14of the jack assembly1from both sides. The handle13forms junction for the spring11and the spring12. Further, the jack assembly1includes a rattle assembly comprising of a rattle lock16, a rattle17associated with the rattle lock16, a collector spring15associated with the rattle lock16. The rattle lock16is connected to the retentive holder3through the pin30.

The collector spring15is attached to the rattle lock16and the closed holding handle14from two ends. When the jack handle25is pulled the shaft21revolves which in turn revolves the rattle17stopping the jack handle25. Following the stopping action of the jack handle25the rattle17also stops. The rattle lock16fixes the jack assembly1by fixing the rattle17in its place. Furthermore when the closed holding handle14recedes the collector spring gets activated. When the jack handle25is pulled second time the rattle lock16rises and releases the rattle17bringing the jack assembly1to its initial position.

FIG. 7illustrates a side view of jack assembly including a bent retentive holder according to one embodiment herein. With respect toFIG. 7. The jack assembly1is placed under a vehicle body33on a ground34and attached to the vehicle body. One movement jack assembly1includes a first upper arm28aand a second upper arms28a28battached to a retentive sheet4. The first upper arm28aand second upper arm28bare attached to the retentive sheet4through pin9and pin10. The retentive sheet includes part6moving through a hole5. The part6is provided with a winding regulation screw31in form of a thread which is been attached to the vehicle body providing height adjustment for the jack assembly during rising and lowering the vehicle body. A bent retentive jack holder3is fixed on the base sheet2through pins7and8.

The jack assembly is remained stable in position until the part6is completely attached the vehicle body. Also, the jack assembly includes a first lower arm28cand a second lower arm28d. The first lower arm28cand the second lower arm28dare attached or pivoted to a base sheet2through pin7and pin8. The base sheet2on the ground34is placed under the vehicle body33. The first upper arm28aand the first lower arm28care attached to each other and pivoted on a shaft21a, similarly the second upper arm28band the second lower arm28dare attached to each other and pivoted on a shaft21a. Bumps28eprovided on the arms28a,28b,28cand28dhelp arms go up equally during movement of the jack assembly.

Further the jack assembly1includes a jack handle25, two shafts a shaft21and shaft21a. Each of the shaft21and21aincludes a shift22for easy movements of the upper arms28a,28band lower arms28cand28d. The other end of the shaft21and21ais attached to a tail piece19. The tail piece19includes a hole20(as shown inFIG. 10) for holding plurality of wire ropes. When the jack handle25is pulled for the first time the shaft21revolves which in turn causes the tail piece19to revolve and pull the wire ropes. Following the revolving action of the tail piece19the rake21b(as shown inFIG. 5) moves, and the shaft21and the shaft21aapproach each other wresting the arms28a,28b,28c, and28d. Further due to wresting of the arms28a,28b,28c,28dthe base sheet2and the retentive sheet4recedes from each other causing the jack assembly1to rise.

The jack assembly also includes a spring11, a closed holding spring12, a handle13and a closed holding handle14. The spring11is attached to the pin8and the closed holding handle14keeping the jack assembly1closed. The closed holding spring12is attached to the pin10and the closed holding handle14of the jack assembly1from both sides. The handle13forms junction for the spring11and the closed holding spring12. Further, the jack assembly1includes a rattle assembly comprising of a rattle lock16, a rattle17associated with the rattle lock16, a collector spring15associated with the rattle lock16. The rattle lock16is connected to the bent retentive holder3through a retentive holding pin30.

The collector spring15is attached to the lock16and the closed holding handle14from two ends. When the jack handle25is pulled the shaft21revolves which in turn revolves the rattle17stopping the jack handle25. Following the stopping action of the jack handle25the rattle17also stops. The rattle lock16fixes the jack assembly1by fixing the rattle17in its place. Furthermore when the closed holding handle14recedes the collector spring gets activated. When the jack handle25is pulled second time the rattle lock16rises and releases the rattle17bringing the jack assembly1to its initial position.

FIG. 8illustrates front and top view of pulley26provided in a jack assembly1(as shown inFIG. 1) according to one embodiment herein.

FIG. 9illustrates a side view of rattle and a rattle lock provided in a jack assembly according to one embodiment herein. With respect toFIG. 9the rattle lock16includes a rattle17. The rattle lock16includes two holes29aand29b. A retentive holder3(as shown inFIG. 6andFIG. 7) is attached to the rattle lock16through a retentive holding pin30by inserting the retentive holding pin30into the hole29a.

FIG. 10illustrates side view of ends of tailpiece included in the jack assembly according to one embodiment herein. With respect to theFIG. 10the tail piece19a hole20for holding plurality of wire ropes. A hole24is provided in the tailpiece19for holding the tailpiece on a shaft18(as shown inFIG. 6).

FIG. 11illustrates side view of one of upper arms or lower arms included in a jack assembly according to one embodiment herein. With respect toFIG. 11the arm28includes a hole28gfor placing a shift22and ball bearing (as shown inFIG. 12) in the jack assembly. A hole28his provided in the arm28for attaching the arm to one of a base sheet2or a retentive sheet4(as shown inFIG. 1).

FIG. 12illustrates two shafts, ball bearing and shift included in a jack assembly according to one embodiment herein. The figure includes a shaft21, a shift22associated with the shaft21, a ball bearing23, and a rake21bprovided on the shaft21. A jag1cis provided for holding the shaft21in place and keeping the wire ropes apart.

FIG. 13illustrates front view of retentive handle included in a jack assembly according to one embodiment herein. The retentive handle includes hole27for attaching the retentive handle3to a shaft18(as shown inFIG. 6).

Although the embodiments herein are described with various specific embodiments, it will be obvious for a person skilled in the art to practice the invention with modifications. However, all such modifications are deemed to be within the scope of the claims.

It is also to be understood that the following claims are intended to cover all of the generic and specific features of the embodiments described herein and all the statements of the scope of the embodiments which as a matter of language might be said to fall there between.