Adjustable seat post adaptor assembly for bicycles and like cycles

• US 5,547,155 A
• Filed: 09/01/1994
• Issued: 08/20/1996
• Est. Priority Date: 09/01/1994
• Status: Expired due to Fees

• Current Assignee: Answer Products Incorporated (HB Performance Systems Holdings LLC)
• Original Assignee: Answer Products Incorporated (HB Performance Systems Holdings LLC)
• Inventors: Herting, Eric
• Primary Examiner(s): Chotkowski, Karen J.
• Assistant Examiner(s): King, Anita M.
• Application Number:
  US08/299,530
• Time in Patent Office: 719 Days
• Field of Search: 248/219.2, 248/286, 248/285, 248/176, 248/371, 248/178, 248/393, 248/397, 248/600, 297/215.15, 403/389, 403/391, 403/52, 403/82, 403/83, 403/84
• US Class Current: 248/219.2
• CPC Class Codes: B62J 1/08 Frames for saddles; Connections between saddle frames and seat pillars; Seat pillars attaching seat pillars to cycle frames B62K19/36
• CPC Class Codes: Y10T 403/7129 Laterally spaced rods

Abstract

The present invention is an adjustable seat post adaptor assembly used in conjunction with bicycles and like cycles for supporting seats. The adjustable seat post adaptor assembly has an independent adjustment where a rider can adjust the seat in a horizontal direction. The adjustable seat post adaptor assembly also has an easily accessible adjustment for allowing the seat to be independently tilted in a vertical direction. The assembly has a calibration scale for assisting the rider to tell the previously set tilting position.

Claims

1. An adjustable seat post adaptor assembly for a bicycle having a seat, at least two bars located underneath the seat, a seat tube and an extension post attached to the seat tube, the adjustable seat post adaptor assembly comprising:

a. an adapter member having a bottom end, a top end, a rear portion with a rear end, a middle portion, and a front portion with a front end, the rear and middle potions each having a horizontal bore, the front portion having a horizontal slotted curved bore, the adapter member further having a vertical opening located between the two horizontal bores of the rear and middle potions;

b. a calibration scale means located on said front end of said adapter member and having a plurality of divisions for precisely adjusting an angle of said seat of said bicycle;

c. a cylindrical member having one end integrally connected to said bottom end of said adapter member and the other end for connecting to said extension post;

d. a base plate member having a lower surface, an upper surface, a central bore, two transverse sides, two longitudinal sides, and two longitudinal opposite semi-circular grooves located on the upper surface and adjacent to and parallel to the two longitudinal sides respectively;

e. two rocking arms integrally connected to said lower surface of said base plate member and located between said central bore of said base plate member, each rocking arm having a proximal portion with a proximal end and a horizontal proximal bore, and a distal portion with a distal end and a horizontal distal bore, the distal portions extending away from said base plate member, where the distal ends of the two rocking arms include an indicating marker for assisting in reading said calibration scale means on said adapter member;

f. said base plate member mounted to said top end of said adapter member such that said central bore of said base plate member is located adjacent to said vertical opening of said adapter member, said horizontal proximal bores located adjacent to and aligned with said horizontal bore of said rear portion of said adapter member for hinging said base plate member to said adapter member;

g. said horizontal distal bores of said rocking arms being aligned with said horizontal slotted curved bore of said adapter member and fastened by a first threaded fastener means for allowing said base plate member to be independently adjusted in an up or down position; and

h. an X-shaped clamping member having a central portion with a central bore and four extending tips each having a semi-circular groove for clamping onto said upper surface of said base plate member, such that the central bore is aligned with said central bore of said base plate member for receiving a second threaded fastener means extending therethrough to fasten the clamping member to said base plate member, the four semi-circular grooves being complementary to said two longitudinal opposite semi-circular grooves of said base plate member respectively for allowing said at least two bars of said seat to be secured therein to independently adjust said seat in a forward or backward direction;

i. whereby when said adjustable seat post adaptor assembly is assembled, said second threaded fastener means allows said seat of said bicycle to be independently adjusted in said forward or backward direction, and said first threaded fastener means allows said seat to be independently adjusted in said up or down direction.

2. The seat post adaptor assembly as defined in claim 1 wherein said X-shaped clamping member further includes a plurality of cavities for reducing weight of said adjustable seat post adaptor assembly.

3. The seat post adaptor assembly as defined in claim 1 wherein said adjustable seat post adaptor assembly is made out of light-weight aluminum material.

4. The seat post adaptor assembly as defined in claim 1 wherein said other end of said cylindrical member is for connecting to said extension post by press-fit engagement.

5. The seat post adaptor assembly as defined in claim 1 wherein said other end of said cylindrical member is for connecting to said extension post by bonding.

6. The seat post adaptor assembly as defined in claim 1 wherein said other end of said cylindrical member is for connecting to said extension post by welding.

7. A seat post adaptor assembly for a bicycle having a seat, at least two bars located underneath the seat, a seat tube and an extension post attached to the seat tube, the seat post adaptor assembly comprising:

a. an adapter member having a bottom end, a top end, a rear portion with a rear end, and a front portion with a front end, the rear portion having a horizontal bore and a vertical opening, and the front portion having a horizontal slotted curved bore;

b. a calibration scale means located on said adapter member and having a plurality of divisions for precisely adjusting an angle of said seat of said bicycle;

c. a cylindrical member having one end integrally connected to said bottom end of said adapter member and the other end for connecting to said extension post;

d. a base plate member having a lower surface, an upper surface, a bore, and at least two opposite parallel semi-circular grooves located on the upper surface, the base plate member mounted to said adapter member such that the bore of said base plate member is located adjacent to said vertical opening of said rear portion of said adapter member;

e. at least one rocking arm integrally connected to said lower surface of said base plate member, the least one rocking arm having a proximal end with a proximal horizontal bore, and a distal end with a horizontal distal bore, the proximal horizontal bore located adjacent to and aligned with said horizontal bore of said rear portion of said adapter member for hinging said base plate member to said adapter member, and the distal end extending away from said base plate member, where the distal end of the at least one rocking arm includes an indicating marker for assisting in reading said calibration scale means on said adapter member;

f. said horizontal distal bore of said at least one rocking arm being aligned with said horizontal slotted curved bore of said adapter member and fastened by a first fastener means for allowing said base plate member to be independently adjusted in an up or down position; and

g. a clamping member having a bore and at least two opposite semi-circular grooves for clamping onto said upper surface of said base plate member, such that the bore is aligned with said bore of said base plate member for receiving a second fastener means extending therethrough to fasten the clamping member to said base plate member, the at least two opposite semi-circular grooves being complementary to said at least two opposite semi-circular grooves of said base plate member respectively for allowing said at least two bars of said seat to be secured therein to independently adjust said seat in a forward or backward direction;

h. whereby when said seat post adaptor assembly is assembled, said second fastener means allows said seat of said bicycle to be independently adjusted in said forward or backward direction, and said first fastener means allows said seat to be independently adjusted in said up or down direction.

8. The seat post adaptor assembly as defined in claim 7 wherein said clamping member further includes a plurality of cavities for reducing weight of said seat post adaptor assembly.

9. The seat post adaptor assembly as defined in claim 7 wherein said clamping member is generally an X-shape.

10. The seat post adaptor assembly as defined in claim 7 wherein said clamping member is generally a wide square shape which is the same size as said base plate member.

11. The seat post adaptor assembly as defined in claim 7 wherein said clamping member is generally a narrow rectangular shape.

12. The seat post adaptor assembly as defined in claim 7 wherein said seat post adaptor assembly is made out of light-weight aluminum material.

13. The seat post adaptor assembly as defined in claim 7 wherein said other end of said cylindrical member is for connecting to said extension post by press-fit engagement.

14. The seat post adaptor assembly as defined in claim 7 wherein said other end of said cylindrical member is for connecting to said extension post by bonding.

15. The seat post adaptor assembly as defined in claim 7 wherein said other end of said cylindrical member is for connecting to said extension post by welding.

16. A seat post adaptor assembly for a cycle which includes a seat, at least two rails located underneath the seat, a seat tube and an extension post attached to the seat tube, the seat post adaptor assembly comprising:

a. an adapter means having a bottom end, a rear portion, and a front portion, the rear portion having a bore and an opening, and the front portion having a slotted bore;

b. a tube means having one end integrally connected to said bottom end of said adapter means and the other end for connecting to said extension post;

c. a base plate means mounted to said adapter means and having a bore and at least two grooves;

d. a calibration scale means located on said adapter means and having a plurality of divisions for precisely adjusting an angle of said seat;

e. at least one rocking arm integrally connected to said base plate means and having a proximal end and a distal end with a distal bore for allowing said base plate means to be independently adjusted in a vertical direction, where the distal end of the at least one rocking arm includes an indicating marker for assisting in reading said calibration scale means on said adapter means; and

f. a clamping means having a bore and at least two grooves for clamping to said base plate means, such that the bore is aligned with said bore of said base plate means, the at least two grooves being complementary to said at least two grooves of said base plate means respectively for allowing said at least two rails of said seat to be secured therein to independently adjust said seat in a horizontal direction;

g. whereby when said seat post adaptor assembly is assembled, the adjustment of said clamping means allows said seat to be independently adjusted in said horizontal direction, and the adjustment of said at least one rocking arm allows said seat to be independently adjusted in said vertical direction.

17. The assembly as defined in claim 16 wherein said clamping means further includes a plurality of cavities for reducing weight of said seat post adaptor assembly.

18. The assembly as defined in claim 16 wherein said clamping means is generally an X-shape.

19. The assembly as defined in claim 16 wherein said clamping means is generally a wide square shape which is the same size as said base plate means.

20. The assembly as defined in claim 16 wherein said clamping means is generally a narrow rectangular shape.

21. The assembly as defined in claim 16 wherein said seat post adaptor assembly is made out of aluminum material.

22. The assembly as defined in claim 16 wherein said front portion of said adapter means further comprises a front end slotted opening.

23. The assembly as defined in claim 22 wherein said distal bore of said at least one rocking arm is connected inbetween said front end slotted opening for allowing said base plate means to be independently adjusted in said vertical direction and fastened by a fastener means.

24. A seat post adaptor assembly for a cycle which includes a seat, a seat tube, an extension tube attached to the seat tube, and connection means, the seat post adaptor assembly comprising:

a. an adapter means having a bottom end, an access opening, and a slotted bore;

b. a tube means having one end integrally connected to said bottom end of said adapter means and the other end for connecting to said extension tube;

c. a base plate means mounted to said adapter means and having a bore and at least two grooves;

d. a calibration scale means having a plurality of divisions for precisely adjusting an angle of said seat of said cycle;

e. a single central rocking arm integrally connected to said base plate means and connected to said slotted bore of said adapter means such that said base plate means can be independently adjusted in a tilting angle, the single central rocking arm having an indicating marker for assisting in reading said calibration scale means; and

f. a clamping means having a bore and at least two grooves for clamping to said base plate means, such that the bore is aligned with said bore of said base plate means and secured together by a fastener, the at least two grooves being complementary to said at least two grooves of said base plate means respectively for allowing said connection means of said seat to be secured therein, where the fastener is easily accessible through said access opening on said adapter means for independently adjusting said seat in a horizonal direction;

g. whereby when said seat post adaptor assembly is assembled, the adjustment of said clamping means allows said seat to be independently adjusted in said horizontal direction, and the adjustment of said central rocking arm allows said seat to be independently adjusted in said tilting angle.

25. A seat post adaptor assembly for a bicycle having a seat, at least two bars located underneath the seat and a seat tube, the assembly comprising:

a. an integral adapter member having a top adaptor portion and a bottom extension post portion, the top adaptor portion having a bottom end, a top end, a rear portion with a rear end, and a front portion with a front end, the rear portion having a horizontal bore and a vertical access opening, the front portion having a horizontal slotted curved bore, the bottom extension post portion having an elongated cylinder for attaching to said seat tube of said seat, where the elongated cylinder is integrally formed with the bottom end of said top adaptor portion;

b. a calibration scale means located on said adapter member and having a plurality of divisions for precisely adjusting an angle of said seat of said bicycle;

c. a base plate member having a lower surface, an upper surface, a bore, and at least two opposite parallel semi-circular grooves located on the upper surface, the base plate member mounted to said adapter member such that the bore of said base plate member is located above said vertical access opening of said rear portion of said adapter member;

d. at least one rocking arm integrally connected to said lower surface of said base plate member, the least one rocking arm having a proximal end with a proximal horizontal bore, and a distal end with a horizontal distal bore, the proximal horizontal bore located adjacent to and aligned with said horizontal bore of said rear portion of said adapter member for hinging said base plate member to said adapter member, the distal end having an indicating marker for assisting in reading said calibration scale means and extending away from said base plate member;

e. said horizontal distal bore of said at least one rocking arm being aligned with said horizontal slotted curved bore of said adapter member and fastened by a first fastener means for allowing said base plate member to be independently adjusted in a tilting angle; and

f. a clamping member having a bore and at least two opposite semi-circular grooves for clamping onto said upper surface of said base plate member, such that the bore is aligned with said bore of said base plate member for receiving a second fastener means extending therethrough to fasten the clamping member to said base plate member, the at least two opposite semi-circular grooves being complementary to said at least two opposite semi-circular grooves of said base plate member respectively for allowing said at least two bars of said seat to be secured therein, where the second fastener means is easily accessible through said vertical access opening on said adapter member for independently adjusting said seat in a forward or backward direction;

g. whereby when said seat post adaptor assembly is assembled, said second fastener means allows said seat of said bicycle to be independently adjusted in said forward or backward direction, and said first fastener means allows said seat to be independently adjusted in said tilting angle.

26. A seat post adaptor assembly for a cycle which includes a seat, at least two rails and a seat tube, the assembly comprising:

a. an integral adapter means having a top adaptor portion and a bottom extension post portion, the top adaptor portion having a bottom end, a rear portion and a front portion, the rear portion having a bore and an access opening, the front portion having a slotted bore, the bottom extension post portion having a cylinder for attaching to said seat tube of said seat, where the cylinder is integrally formed with the bottom end of said top adaptor portion;

b. a base plate means having a bore and at least two grooves;

c. a calibration scale means having a plurality of divisions for precisely adjusting an angle of said seat of said cycle;

d. at least one rocking arm integrally connected to said base plate means and having a proximal end and a distal end, the proximal end hingeably attached to said rear portion of said adapter means, the distal end having an indicating marker for assisting in reading said calibration scale means and adjustably attached to said slotted bore of said front portion of said adapter means such that said base plate means can be independently adjusted in a tilting angle; and

e. a clamping means having a bore and at least two grooves for clamping to said base plate means, such that the bore is aligned with said bore of said base plate means and secured together by a fastener, the at least two grooves being complementary to said at least two grooves of said base plate means respectively for allowing said at least two rails of said seat to be secured therein, where the fastener is easily accessible through said access opening on said adapter means for independently adjusting said seat in a horizontal direction;

f. whereby when said seat post adaptor assembly is assembled, the adjustment of said clamping means allows said seat to be independently adjusted in said horizontal direction, and the adjustment of said at least one rocking arm allows said seat to be independently adjusted in said tilting angle.

27. A seat post adaptor assembly for a cycle which includes a seat, a seat tube, and connection means, the assembly comprising:

a. an adapter means having a top adaptor portion and a bottom extension post portion, the top adaptor portion having a bottom end, a rear portion and a front portion, the rear portion having an access opening, the front portion having a longitudinal slotted bore, the bottom extension post portion having a cylinder for attaching to said seat tube of said seat, where the cylinder is integrally formed with the bottom end of said top adaptor portion;

b. a calibration scale means having a plurality of divisions for precisely adjusting an angle of said seat of said cycle;

c. a base plate means mounted to said adapter means and having a bore and at least two grooves;

d. a single central rocking arm integrally connected to said base plate means and adjustably connected to said longitudinal slotted bore of said adapter means for allowing said base plate means to be independently adjusted in a tilting angle, the single central rocking arm having an indicating marker for assisting in reading said calibration scale means; and

e. a clamping means having a bore and at least two grooves for clamping to said base plate means, such that the bore is aligned with said bore of said base plate means and secured together by a fastener, the at least two grooves being complementary to said at least two grooves of said base plate means respectively for allowing said connection means of said seat to be secured therein, where the fastener is easily accessible through said access opening on said rear portion of said adapter means for independently adjusting said seat in a horizonal direction;

f. whereby when said seat post adaptor assembly is assembled, the adjustment of said clamping means allows said seat to be independently adjusted in said horizontal direction, and the adjustment of said central rocking arm allows said seat to be independently adjusted in said vertical direction.

28. A seat post adaptor assembly for a cycle which includes a seat, the assembly comprising:

a. an adapter member having a rear portion and a front portion;

b. a calibration scale means located on said adapter member and having a plurality of divisions for precisely adjusting an angle of said seat of said cycle;

c. a base plate member having a lower surface, the base plate member mounted to said adapter member;

d. at least one rocking arm integrally connected to said lower surface of said base plate member, the rocking arm having opposite ends; and

e. one of said opposite ends of said at least one rocking arm including an indicating marker for assisting in reading said calibration scale means on said adapter member.

29. The assembly as defined in claim 28 wherein said calibration scale means is located on said front portion of said adapter member.

30. A seat post adaptor assembly for a cycle which includes a seat, the assembly comprising:

a. an adapter member having a rear portion and a front portion;

b. a calibration scale means located on said adapter member and having a plurality of divisions for precisely adjusting an angle of said seat of said cycle;

c. a base plate member having a lower surface, the base plate member mounted to said adapter member;

d. at least one rocking arm integrally connected to said lower surface of said base plate member; and

e. said at least one rocking arm including an indicating marker for assisting in reading said calibration scale means on said adapter member.

31. A seat post adaptor assembly for a cycle which includes a seat, the assembly comprising:

a. an adapter means;

b. a calibration scale means having a plurality of divisions for precisely adjusting an angle of said seat of said cycle;

c. a base plate means mounted to said adapter means;

d. at least one arm means connected to and extending from said base plate means for allowing said base plate means to be independently adjusted in a vertical direction; and

e. means for assisting in reading said calibration scale means.

32. The assembly as defined in claim 31 wherein said calibration scale means is located on said adapter means.

33. An adjustable seat post adaptor assembly for a bicycle having a seat, at least two bars located underneath the seat, a seat tube and an extension post attached to the seat tube, the adjustable seat post adaptor assembly comprising:

a. an adapter member having a bottom end, a top end, a rear portion with a rear end, a middle portion, and a front portion with a front end, the rear and middle portions each having a horizontal bore, the front portion having a horizontal slotted curved bore, the adapter member further having a vertical opening located between the two horizontal bores of the rear and middle portions;

b. a calibration scale means located on said front end of said adapter member and having a plurality of divisions for precisely adjusting an angle of said seat of said bicycle;

c. a cylindrical member having one end integrally connected to said bottom end of said adapter member and the other end for connecting to said extension post;

d. a base plate member having a lower surface, an upper surface, a central bore, two transverse sides, two longitudinal sides, and two longitudinal opposite semi-circular grooves located on the upper surface and adjacent and parallel to the two longitudinal sides respectively;

e. two rocking arms integrally connected to said lower surface of said base plate member and located between said central bore of said base plate member, each rocking arm having a proximal portion with a proximal end and a horizontal proximal bore, and a distal portion with a distal end and a horizontal distal bore, the distal portions extending away from said base plate member, where the distal ends of the two rocking arms include an indicating marker for assisting in reading said calibration scale means on said adapter member;

f. said base plate member mounted to said top end of said adapter member such that said central bore of said base plate member is located adjacent to said vertical opening of said adapter member, said horizontal proximal bores located adjacent to and aligned with said horizontal bore of said rear portion of said adapter member for hinging said base plate member to said adapter member;

g. said horizontal distal bores of said rocking arms being aligned with said horizontal slotted curved bore of said adapter member and fastened by a first threaded fastener means for allowing said base plate member to be independently adjusted in an up or down position; and

h. an X-shaped clamping member having a central portion with a central bore, a plurality of cavities for reducing weight on said adjustable seat post adaptor assembly and four extending tips each having a semi-circular groove for clamping onto said upper surface of said base plate member, such that the central bore is aligned with said central bore of said base plate member for receiving a second threaded fastener means extending therethrough to fasten the clamping member to said base plate member, the four semi-circular grooves being complementary to said two longitudinal opposite semi-circular grooves of said base plate member respectively for allowing said at least two bars of said seat to be secured therein to independently adjust said seat in a forward or backward direction;

i. whereby when said adjustable seat post adaptor assembly is assembled, said second threaded fastener means allows said seat of said bicycle to be independently adjusted in said forward or backward direction, and said first threaded fastener means allows said seat to be independently adjusted in said up or down direction.

34. The seat post adaptor assembly as defined in claim 33 wherein said seat post adaptor assembly is made out of light-weight aluminum material.

35. The seat post adaptor assembly as defined in claim 33 wherein said other end of said cylindrical member is for connecting to said extension post by press-fit engagement.

36. The seat post adaptor assembly as defined in claim 33 wherein said other end of said cylindrical member is for connecting to said extension post by bonding.

37. The seat post adaptor assembly as defined in claim 33 wherein said other end of said cylindrical member is for connecting to said extension post by welding.

38. A seat post adaptor assembly for a bicycle having a seat, at least two bars located underneath the seat, a seat post and an extension post attached to seat tube, the seat post adaptor assembly comprising:

a. an adapter member having a bottom end, a top end, a rear portion with a rear end, and a front portion with a front end, the rear portion having a horizontal bore and a vertical opening, and the front portion having a horizontal slotted curved bore;

b. a calibration scale means located on said adapter member and having a plurality of divisions for precisely adjusting an angle of said seat of said bicycle;

c. a cylindrical member having one end integrally connected to said bottom end of said adapter member and the other end for connecting to said extension post;

d. a base plate member having a lower surface, an upper surface, a bore, and at least two opposite parallel semi-circular grooves located on the upper surface, the base plate member mounted to said adapter member such that the bore of said base plate member is located adjacent to said vertical opening of said rear portion of said adapter member;

e. at least one rocking arm integrally connected to said lower surface of said base plate member, the least one rocking arm having a proximal end with a proximal horizontal bore, and a distal end with a horizontal distal bore, the proximal horizontal bore located adjacent to and aligned with said horizontal bore of said rear portion of said adapter member for hinging said base plate member to said adapter member, and the distal end extending away from said base plate member, where the distal end of the at least one rocking arm includes an indicating marker for assisting in reading said calibration scale means on said adapter member;

f. said horizontal distal bore of said at least one rocking arm being aligned with said horizontal slotted curved bore of said adapter member and fastened by a first fastener means for allowing said base plate member to be independently adjusted in an up or down position; and

g. a clamping member having a bore, a plurality of cavities for reducing weight on said seat post adaptor assembly and at least two opposite semi-circular grooves for clamping onto said upper surface of said base plate member, such that the bore is aligned with said bore of said base plate member for receiving a second fastener means extending therethrough to fasten the clamping member to said base plate member, the at least two opposite semi-circular grooves being complementary to said at least two opposite semi-circular grooves of said base plate member respectively for allowing said at least two bars of said seat to be secured therein to independently adjust said seat in a forward or backward direction;

h. whereby when said seat post adaptor assembly is assembled, said second fastener means allows said seat of said bicycle to be independently adjusted in said forward or backward direction, and said first fastener means allows said seat to be independently adjusted in said up or down direction.

39. The seat post adaptor assembly as defined in claim 38 wherein said clamping member is generally an X-shape.

40. The seat post adaptor assembly as defined in claim 38 wherein said clamping member is generally a wide square shape which is the same size as said base plate member.

41. The seat post adaptor assembly as defined in claim 38 wherein said clamping member is generally a narrow rectangular shape.

42. The seat post adaptor assembly as defined in claim 38 wherein said seat post adaptor assembly is made out of light-weight aluminum material.

43. The seat post adaptor assembly as defined in claim 38 wherein said other end of said cylindrical member is for connecting to said extension post by press-fit engagement.

44. The seat post adaptor assembly as defined in claim 38 wherein said other end of said cylindrical member is for connecting to said extension post by bonding.

45. The seat post adaptor assembly as defined in claim 38 wherein said other end of said cylindrical member is for connecting to said extension post by welding.

46. A seat post adaptor assembly for a cycle which includes a seat, at least two rails, a seat tube and an extension post attached to the seat tube, the seat post adaptor assembly comprising:

a. an adapter means having a bottom end, a rear portion, and a front portion, the rear portion having a bore and an opening, and the front portion having a slotted bore;

b. a calibration scale means located on said adapter means and having a plurality of divisions for precisely adjusting an angle of said seat;

c. a tube means having one end integrally connected to said bottom end of said adapter means and the other end for connecting to said extension post;

d. a base plate means mounted to said adapter means and having a bore and at least two grooves;

e. at least one rocking arm integrally connected to said base plate means and having a proximal end and a distal end with a distal bore for allowing said base plate means to be independently adjusted in a vertical direction; and

f. a clamping means having a bore, a plurality of cavities for reducing weight on said seat post adaptor assembly and at least two grooves for clamping to said base plate means, such that the bore is aligned with said bore of said base plate means, the at least two grooves being complementary to said at least two grooves of said base plate means respectively for allowing said at least two rails of said seat to be secured therein to independently adjust said seat in a horizontal direction;

g. whereby when said seat post adaptor assembly is assembled, the adjustment of said clamping means allows said seat to be independently adjusted in said horizontal direction, and the adjustment of said at least one rocking arm allows said seat to be independently adjusted in said vertical direction.

47. The assembly as defined in claim 46 wherein said distal end of said at least one rocking arm includes an indicating marker for assisting in reading said calibration scale means on said adapter means.

48. The assembly as defined in claim 46 wherein said clamping means is generally an X-shape.

49. The assembly as defined in claim 46 wherein said clamping means is generally a wide square shape which is the same size as said base plate means.

50. The assembly as defined in claim 46 wherein said clamping means is generally a narrow rectangular shape.

51. The assembly as defined in claim 46 wherein said seat post adaptor assembly is made out of aluminum material.

52. The assembly as defined in claim 46 wherein said front portion of said adapter means further comprises a front end slotted opening.

53. The assembly as defined in claim 52 wherein said distal bore of said at least one rocking arm is connected inbetween said front end slotted opening for allowing said base plate means to be independently adjusted in said vertical direction and fastened by a fastener means.