BICYCLE FRAME

• US 20180370589A1
• Filed: 12/21/2017
• Published: 12/27/2018
• Est. Priority Date: 06/21/2017
• Status: Active Grant

• Current Assignee: Andrea Pedretti
• Original Assignee: Andrea Pedretti
• Inventors: PEDRETTI, Andrea
• Granted Patent: US 10,640,169 B2
• Time in Patent Office: Days
• CPC Class Codes: B62K 2025/044 Suspensions with automatic adjustment
• CPC Class Codes: B62K 2025/048 with suspension manual adjustment details
• CPC Class Codes: B62K 25/04 for mounting axles resiliently on cycle frame or fork for sidecars, forecars or the like B62K27/06
• CPC Class Codes: B62K 25/12 with rocking arm pivoted on each fork leg in combination with telescopic fork B62K25/06
• CPC Class Codes: B62K 25/286 the shock absorber being connected to the chain-stay via a linkage mechanism
• CPC Class Codes: B62K 3/02 Frames tandem frames B62K3/14

Abstract

A bicycle frame includes a main frame (20); a rear frame (30) articulated to the main frame (20); a rocker link (40) articulated to the main frame (20), through a first hinge axis (B), and to the rear frame (30), through a second hinge axis (C) parallel and eccentric to the first hinge axis (B); a damper (50) arranged between the rear frame (30), through the rocker link (40), and the main frame (20); and a displacement element (60) configured to move the first hinge axis (B) that constrains the rocker link (40) to the main frame (20).

Claims

1. A bicycle frame (10) comprising:

a main frame (20);

a rear frame (30) articulated to the main frame (20);

a rocker link (40) articulated to the main frame (20), through a first hinge axis (B), and to the rear frame (30), through a second hinge axis (C) parallel and eccentric to the first hinge axis (B);

a damper (50) arranged between the rear frame (30), through the rocker link (40), and the main frame (20); and

a displacement element (60) configured to move the first hinge axis (B) that connects the rocker link (40) to the main frame (20).

2. The bicycle frame (10) according to claim 1, wherein the damper (50) is hinged to the rocker link (40) through a third hinge axis (E) parallel and ec-centric to the first hinge axis (B) and to the second hinge axis (C).

3. The bicycle frame (10) according to claim 1, wherein the displacement element (60) is connected to the rocker link (40).

4. The bicycle frame (10) according to claim 1, wherein the displacement element (60) comprises an interconnection body (61) connected in a movable manner to the rocker link (40), wherein the interconnection body (60) is hinged to the main frame (20) through the first hinge axis (B).

5. The bicycle frame (10) according to claim 4, wherein the interconnection body (61) is rotatably connected to the rocker link (40) about an oscillation axis (F) parallel and eccentric with respect to the first hinge axis (B).

6. The bicycle frame (10) according to claim 5, wherein the oscillation axis (F) is parallel and eccentric with respect to the second hinge axis (C) and to the third hinge axis (E).

7. The bicycle frame (10) according to claim 4, wherein the displacement element (60) comprises an actuator (64) configured to move the inter-connection body (61) with respect to the rocker link (40).

8. The bicycle frame (10) according to claim 7, wherein the actuator (64) is a rotary hydraulic actuator.

9. The bicycle frame (10) according to claim 7, wherein the rocker link (40) comprises a housing (62) in which the actuator (64) is contained.

10. The bicycle frame (10) according to claim 1, wherein the first hinge axis (B) is mobile between a first end stop position and a different second end stop position on a determined trajectory traced along the rocker link (40).

11. The bicycle frame (10) according to claim 10, wherein the displacement element (60) is configured to lock the first hinge axis (B) selectively in one of the first end stop position, the second end stop position and any intermediate position therebetween.