ELASTIC MOTOR

Abstract

The elastic motor comprises annular-shaped elastic member, supported by means of a first bracket assembly consisting of a supporting bracket positioned between a first pressing bracket and a second pressing bracket for carrying out the straining of said first elastic member, the brackets being fixed on a base plate, on a circular path according to the projection of the circumference of the elastic member, wherein the distance between the second pressing bracket and the supporting bracket is bigger than the distance between the first pressing bracket and the supporting bracket. The first and the second pressing bracket are provided with some adjusting screws whose rotation determines the translation of a threaded bushing connected with balancers, determining the movement thereof and the straining of said first elastic member and the movement thereof from the second pressing bracket towards the first pressing bracket.

Claims

1-5. (canceled)

6. Elastic motor characterized in that it comprises at least a first annular-shaped elastic member (6), supported by means of at least a first bracket assembly (2, 10, 11) consisting of a supporting bracket (2) located between a first pressing bracket (10) and a second pressing bracket (11) for carrying out the straining of said at least first elastic member (6), the brackets (2, 10, 11) being fixed on a base plate (1), on a circular path according to the projection of the circumference of the elastic member (6), wherein the distance between the second pressing bracket (11) and the supporting bracket (2) is bigger than the distance between the first pressing bracket (10) and the supporting bracket (2) and wherein the supporting bracket (2) comprises at least a first shaft (4) with a supporting projection (5) of said at least first elastic member (6) and each pressing bracket (10, 11) comprises at least a first shaft (9) provided with a pressing projection (8) that presses said at least one first elastic member (6) against the opposite face of the elastic member (6) abutting on the supporting projection (5), those first shafts (9) belonging to the first pressing bracket (10), respectively to the second pressing bracket (11), being fixed in a first balancer (12) of the second pressing bracket (11), respectively in another first balancer (13) of the first pressing bracket (10), pivoting about a shaft (14) fixed in the second pressing bracket (11), respectively in the first pressing bracket (10), and some adjusting screws (16), one for the second pressing bracket (11), respectively another one for the first pressing bracket (10) whose rotation results in translation of a threaded bushing (15) connected to those first balancers (12, 13), causing the movement of said first balancers (12, 13) and the straining of said first elastic member (6) and at the end of that first shaft (4) of the supporting bracket (2) situated at the end from the exterior of the base plate (1) being provided a gear (17) for transmitting the rotary motion to a consumer.

7. Elastic motor according to claim 6 characterized in that in case of a plurality of elastic members (6), at the end of each shaft (4) belonging to the supporting bracket (2), situated at the end from the center of the base plate (1), a part (7) is fixed that takes over the rotary motion of the shaft (4) and which is connected with at least another neighboring part (7), which takes over the rotary motion of another shaft (4), by means of an appropriate mechanism for taking over the rotary motion of each shaft (4) and for the transmission thereof by means of the gear (17) to a consumer.

8. Elastic motor according to claim 6 characterized in that the distance between the second pressing bracket (11) and the supporting bracket (2) is double the distance between the first pressing bracket (10) and the supporting bracket (2).

9. Elastic motor according to claim 6 characterized in that, in case of a plurality of bracket assemblies (2, 10, 11) said supporting brackets (2) are equidistantly arranged on the circular path projected by the circumference of the elastic member (6).

10. Elastic motor according to claim 6 characterized in that the annular-shaped elastic member (6) is in form of a band whose faces coming in contact with the supporting projections (5), respectively with the pressing projections (8), present a concave groove for the positioning in respect to a convex profile of said projections (5, 8).

11. Elastic motor according to claim 7 characterized in that the distance between the second pressing bracket (11) and the supporting bracket (2) is double the distance between the first pressing bracket (10) and the supporting bracket (2).

12. Elastic motor according to claim 7 characterized in that, in case of a plurality of bracket assemblies (2, 10, 11) said supporting brackets (2) are equidistantly arranged on the circular path projected by the circumference of the elastic member (6).

13. Elastic motor according to claim 7 characterized in that the annular-shaped elastic member (6) is in form of a band whose faces coming in contact with the supporting projections (5), respectively with the pressing projections (8), present a concave groove for the positioning in respect to a convex profile of said projections (5, 8).

14. Elastic motor according to claim 8 characterized in that, in case of a plurality of bracket assemblies (2, 10, 11) said supporting brackets (2) are equidistantly arranged on the circular path projected by the circumference of the elastic member (6).

15. Elastic motor according to claim 8 characterized in that the annular-shaped elastic member (6) is in form of a band whose faces coming in contact with the supporting projections (5), respectively with the pressing projections (8), present a concave groove for the positioning in respect to a convex profile of said projections (5, 8).

16. Elastic motor according to claim 9 characterized in that the annular-shaped elastic member (6) is in form of a band whose faces coming in contact with the supporting projections (5), respectively with the pressing projections (8), present a concave groove for the positioning in respect to a convex profile of said projections (5, 8).

Description

[0019] FIG. 1—a three-dimensional view of the elastic motor according to the invention, in unstrained state (initial)

[0020] FIG. 2—a three-dimensional view of the first pressing bracket 10 of the elastic motor of FIG. 1

[0021] FIG. 3—a three-dimensional view of the second pressing bracket 11 of the elastic motor of FIG. 1

[0022] FIG. 4—a three-dimensional view of the supporting bracket 2 of the elastic motor of FIG. 1

[0023] FIG. 5—a three-dimensional view of the elastic motor according to the invention, in a strained state

[0024] FIG. 6—a longitudinal cross-section expanded view through the elastic motor, after the driving of screws 16 of the second pressing brackets 11

[0025] FIG. 7—the detail G of FIG. 6

[0026] FIG. 8—the detail H of FIG. 7

[0027] FIG. 9—the detail K of FIG. 7

[0028] FIG. 10—a longitudinal cross-section expanded view through the elastic motor after the driving of screws 16 of the first pressing brackets 10,

[0029] FIG. 11—the detail M of FIG. 10

[0030] FIG. 12—the detail N of FIG. 11

[0031] FIG. 1 presents an embodiment of an elastic motor according to the invention which contains a base plate 1 and two annular-shaped elastic members (6) which are supported by means of two bracket assemblies (2, 10, 11), each bracket assembly (2, 10, 11) consisting of a supporting bracket (2) located between a first pressing bracket (10) and a second pressing bracket (11), the two bracket assemblies being fixed on the base plate (1), on circular path, in antipodal positions. The supporting bracket 2 is provided with two pairs of bearings 3 in which two shafts 4 are located, on which a supporting and contacting projection 5 with the elastic members 6 is situated. At the end of each shaft 4 situated at the end from the center of the base plate 1, a part 7 in form of a gear is rigidly mounted that takes over the rotary motion of the shaft 4, and that are meshing one to each other. The annular-shaped elastic members 6 abut on the projections 5 and in the same time come in contact with some pressing projections 8 situated on a shaft 9 of pressing brackets, including a first pressing bracket 10, respectively a second pressing bracket 11, fixed on the base plate 1, the second pressing bracket 11 being arranged at a distance in respect to the supporting bracket 2 which is double as compared to the distance between the first pressing bracket 10 and the supporting bracket 2. The pressing projections 8 act on the opposite face of the elastic members 6 in respect to the supporting projections 5. The shafts 9 are fixed in some bearings 3, of first balancers 12 of the second pressing bracket 11, respectively of other first balancers 13 of the first pressing bracket 10, that can pivot about an inherent shaft 14 fixed in the second pressing bracket 11, respectively in the first pressing bracket 10 due to the translation of threaded bushings 15, connected to the first balancer 12, respectively with the other first balancer 13, which are driven by the rotation of an adjusting screw 16 that is rotatable, but cannot axially move and which has a left-hand/right-hand thread. The elastic members 6 are in form of a band whose faces which come in contact with the supporting projections, respectively the pressing projections, have a concave groove a, which interacts for positioning and driving with a convex profile b of the supporting projections 5 and of the pressing projections 8 corresponding to the second pressing bracket 11, respectively of the pressing projections 8 corresponding to the first pressing bracket 10. At the end of one of the shafts 4, situated at the end from the exterior of the base plate, a gear 17 is mounted, for the transmission of the rotary motion to a consumer not shown. The base plate 1 is attached to a frame, not shown, with some assembly elements 18.

[0032] In the initial phase, the elastic members 6 abut on the supporting projections 5, and the pressing projections 8 are in contact with the opposite face of the elastic members 6. In the second phase, the adjusting screws 16 of the second pressing brackets 11 rotate, determining the first balancers 12 to swing about shafts 14, such that the pressing projections 8 press with a force F.sub.1 on the elastic members 6, determining the elastic deformation of the elastic members 6 and the occurrence thereon of a tangential component F.sub.1t at the second pressing bracket 11 and of a reaction force F.sub.r1 at the supporting bracket 2, in this moment, the highest level A1 of the elastic members 6 being between the supporting brackets 2 and the first pressing brackets 10. In order for the rotary motion to be achieved, it must that the slant of the portion of the elastic member 6 comprised between the position of the supporting bracket 2 and the position on the first pressing bracket 10 to be changed, opposite in respect to the current slant, that being the reason why in the third phase the adjusting screws 16 of the first pressing brackets 10 are driven for the swinging of the two balancers 13 until the moment when the highest level of the elastic members 6 moves to the point A2 situated between the supporting brackets 2 and the second pressing brackets 11, determining the occurrence of a force F.sub.2 at the first pressing bracket 10 and of a reaction force F.sub.r2 at the supporting bracket 2, as well as of tangential components Flt and respectively F.sub.r2t. After the completion of this action, the rotary motion of the elastic members 6 starts. The further the highest level A2 is from the supporting bracket 2, but not further then half of the distance between the supporting bracket 2 and the second pressing bracket 11, the faster the elastic members 6 are rotating and with a higher force, due to the fact that the tangential forces F.sub.1t and F.sub.r2t from the second pressing brackets 11 and respectively from the supporting brackets 2 push the elastic members 6 in the same direction. The elastic members 6 are continuously rotating in contact with the projections of all shafts 4 and 9 due to the decomposition of the forces between the elastic members 6, respectively of the slanted portions of the elastic members and the projections 5 and 8 of the brackets 2, and 11. The rotation of the elastic members 6 drives in rotation of the shafts 4, where from, by means of the gear 17, the rotary motion is transmitted to a consumer not shown.

[0033] The elastic members 6 are made of a resilient material with elastic properties, for example of spring steel or another similar material, in form of a band having a thickness comprised between 1 mm and 250 mm and a width comprised between 2 mm and 900 mm.

[0034] The diameter of the elastic member 6 is comprised between 10 mm and 100 m.

[0035] In the example according to the invention, the elastic members 6 have a thickness of 9 mm, a width of 50 mm and a diameter of 990 mm.