Bicycle frame with inline shock assembly

Patent metadata

Field	Value
Publication number	US-11242110-B2
Application number	US-201816225532-A
Country	US
Kind code	B2
Filing date	Dec 19, 2018
Priority date	Dec 21, 2017
Publication date	Feb 8, 2022
Grant date	Feb 8, 2022

Abstract

A bicycle frame includes a front triangle that has a top tube, a down tube, and a seat tube. A bottom side of the top tube includes a cavity. The bicycle frame also includes a seat stay assembly that has a first seat stay, a second seat stay, and a seat stay yoke that connects the first seat stay and the second seat stay. The seat stay yoke is configured to at least partially fit within the cavity on the bottom side of the top tube. The bicycle frame further includes an inline shock assembly that has a stanchion and a shock. At least a portion of the stanchion is configured to fit within the seat stay yoke.

First claim

What is claimed is:

1. A bicycle frame comprising:
a front triangle that includes a top tube, a down tube, and a seat tube, wherein a bottom side of the top tube includes a cavity;
a seat stay assembly that includes a first seat stay, a second seat stay, and a seat stay yoke that connects the first seat stay and the second seat stay, wherein the seat stay yoke is configured to at least partially fit within the cavity on the bottom side of the top tube;
an inline shock assembly that includes a stanchion and a shock, wherein at least a portion of the stanchion is configured to fit within the seat stay yoke; and
a first seal assembly mounted to a first end of the seat stay yoke and configured to form a seal between the seat stay yoke and the stanchion.

2. The bicycle frame of claim 1 , further comprising a first mounting bracket on the top tube, wherein the shock of the inline shock assembly is configured to be secured to the first mounting bracket.

3. The bicycle frame of claim 2 , further comprising a second mounting bracket on the seat tube, wherein the stanchion of the inline shock assembly is configured to be secured to the second mounting bracket.

4. The bicycle frame of claim 3 , further comprising a stanchion mount which is configured to secure the stanchion, wherein the stanchion mount is mounted to the first mounting bracket.

5. The bicycle frame of claim 1 , wherein the stanchion has a non-round cross section.

6. The bicycle frame of claim 1 , wherein the stanchion includes a pair of slots configured to receive a mounting sleeve, a first spacer bushing mounted to the mounting sleeve, and a second spacer bushing mounted to the mounting sleeve.

7. The bicycle frame of claim 6 , wherein the mounting sleeve is configured to pass through a mounting hole of the shock.

8. The bicycle frame of claim 7 , further comprising a fastener configured to pass through an upper hole of the seat stay yoke, through the mounting sleeve, and through a lower hole of the seat stay yoke to secure the inline shock assembly to the seat stay yoke.

9. The bicycle frame of claim 6 , wherein the pair of slots include a smooth surface to facilitate low friction longitudinal translation of the first spacer bushing and the second spacer bushing within the pair of slots.

10. The bicycle frame of claim 1 , wherein the first seal assembly includes a first bushing, a first foam ring, and a first wiper seal.

11. The bicycle frame of claim 10 , further comprising a second seal assembly mounted to a second end of the seat stay yoke, wherein the second seal assembly includes a second bushing, a second foam ring, and a second wiper seal.

12. The bicycle frame of claim 11 , wherein the first seal assembly and the second seal assembly are configured to contain a lubricant within at least a portion of the seat stay yoke.

13. The bicycle frame of claim 1 , wherein the seat stay assembly further includes a first chain stay and a second chain stay, and wherein each of the first chain stay and the second chain stay includes a contoured through hole.

14. The bicycle frame of claim 13 , wherein the contoured through hole has an octagonal contour.

15. The bicycle frame of claim 13 , further comprising a contoured pivot axle configured to mount through the contoured through holes of the first chain stay and the second chain stay to secure the first chain stay and the second chain stay to the seat tube.

16. A method of constructing a bicycle frame, comprising:
forming a front triangle that includes a top tube, a down tube, and a seat tube, wherein forming the front triangle includes forming a cavity on a bottom side of the top tube;
forming a seat stay assembly that includes a first seat stay, a second seat stay, and a seat stay yoke that connects the first seat stay and the second seat stay, wherein the seat stay yoke is formed to at least partially fit within the cavity on the bottom side of the top tube;
mounting an inline shock assembly that includes a stanchion and a shock to the seat stay yoke and to the top tube; and
mounting a seal assembly to a first end of the seat stay yoke to form a seal between the seat stay yoke and the stanchion.

17. The method of claim 16 , wherein mounting the inline shock assembly further comprises mounting the stanchion of the inline shock assembly to a mounting bracket formed on the seat tube.

18. The method of claim 16 , wherein mounting the inline shock assembly to the seat stay yoke comprises:
placing a mounting sleeve through an upper slot in the stanchion, through a mounting hole in the shock, and through a lower slot in the stanchion;
placing a first spacer bushing above the mounting hole in the shock such that the first spacer bushing rests within the upper slot in the stanchion;
placing a second spacer bushing below the mounting hole in the shock such that the second spacer bushing rests within the lower slot in the stanchion; and
placing a fastener through an upper hole in the seat stay yoke, through the mounting sleeve, and through a lower hole in the seat stay yoke.

19. The method of claim 16 , further comprising forming a first relief cut in the first seat stay and a second relief cut in the second seat stay to increase flexibility of the seat stay assembly.

20. The method of claim 16 , wherein the seal assembly includes a bushing, a foam ring, and a wiper seal.

Assignees

• Trek Bicycle Corp

Inventors

• Alsop Edward A
• Fullerton Jr Benjamin Blaise
• Bentler Brian Gerhard

Classifications

• B62K19/30 Primary

  Frame parts shaped to receive other cycle parts or accessories (axle suspensions B62K25/00) · CPC title

• B62K19/06 Primary

  tubular · CPC title

• B62K25/28

  with pivoted chain-stay · CPC title

• B62K3/02

  Frames (tandem frames B62K3/14) · CPC title

• B62K25/30

  pivoted on pedal crank shelf (B62K25/32 takes precedence) · CPC title