Frame for an electric scooter

• US 6,565,105 B2
• Filed: 10/09/2001
• Issued: 05/20/2003
• Est. Priority Date: 10/09/2001
• Status: Expired due to Fees

• Current Assignee: Samuel Lin
• Original Assignee: Samuel Lin
• Inventors: Lin, Samuel
• Primary Examiner(s): Dickson, Paul N.
• Assistant Examiner(s): Ilan, Ruth
• Application Number:
  US09/971,936
• Publication Number:
  US 20030067151A1
• Time in Patent Office: 588 Days
• Field of Search: 267/153, 267/141, 280/124.177, 280/124.111, 280/124.113, 280/755, 280/788, 280/124.11, 280/781, 180/208, 180/65.1, 180/311, 180/905, 180/908
• US Class Current: 280/124.113
• CPC Class Codes: B60G 2200/322 with a single pivot point and a straight axle
• CPC Class Codes: B60G 2200/44 steerable
• CPC Class Codes: B60G 2204/45 Stops limiting travel
• CPC Class Codes: B60G 2204/4502 using resilient buffer
• CPC Class Codes: B60G 2300/12 Cycles; Motorcycles
• CPC Class Codes: B60G 2300/24 Wheelchairs
• CPC Class Codes: B60G 9/02 the axle or housing being pivotally mounted on the vehicle , e.g. the pivotal axis being parallel to the longitudinal axis of the vehicle B60G9/003 takes precedence
• CPC Class Codes: B62K 5/007 power-driven

Abstract

A frame for an electric scooter has a body, a pivotal bar, two wheel mounts, two resilient members and two tabs. The pivotal bar is pivotally attached to the front end of the body. Each wheel mount is pivotally attached to one end of the pivotal bar in a longitudinal direction. A front wheel is rotatably attached to each of the wheel mounts. The resilient members are attached to the top of the pivotal bar. The tabs are secured to the body and respectively abut one of the resilient members. Consequently, one of the resilient members will be compressed when one of the front wheels is bumped. This can keep the force applied to the front wheel from being transmitted to the body and the steering bar of the scooter. To steer and to drive the electric scooter become is easier.

Claims

1. A frame for an electric scooter having two front wheels, the frame comprising:

a body;

a pivotal bar pivotally attached to a front end of the body;

two wheel mounts respectively pivotally attached to opposite ends of the pivotal bar in a longitudinal direction and adapted for one of the front wheels to be rotatably attached to the wheel mount;

two resilient members attached to a top of the pivotal bar; and

two tabs secured to the frame and respectively abutting one of the resilient members so as to push the abutting resilient member to absorb shock when one of the front wheels is bumped.

2. The frame as claimed in claim 1 further comprising a pivot with an outer thread securely attached to the front end of the body;

a longitudinal through hole defined in a middle position of the pivotal bar through which the pivot extends; and

a nut screwed onto the pivot and abutting the pivotal bar so as to pivotally attach the pivotal bar to the body with the pivot in cooperation with the nut.

3. The frame as claimed in claim 2 further comprising at least one bushing mounted in the longitudinal through hole in the pivotal bar to reduce friction between the pivot and an inner surface of the through hole in the pivotal bar.

4. The frame as claimed in claim 2, wherein the body has a lateral beam integrally mounted on the front end of the body to pivotally attach the pivotal bar on the lateral beam.

5. The frame as claimed in claim 4, wherein the pivot is mounted on a middle position of the lateral beam.

6. The frame as claimed in claim 4, wherein the tabs are respectively secured to opposite ends of the lateral beam.

7. The frame as claimed in claim 1, wherein each resilient member is a block made of a resilient material.

8. The frame as claimed in claim 1, wherein each resilient member is a spring.

9. The frame as claimed in claim 1, wherein the pivotal bar has recesses defined in the top of the pivotal bar and corresponding to each tab on the body to hold each resilient member.

10. The frame as claimed in claim 9, wherein each resilient member is a block made of a resilient material.

11. The frame as claimed in claim 9, wherein each resilient member is a spring.

12. The frame as claimed in claim 1 further comprising a vertical tube mounted on each end of the pivotal bar for one of the wheel mounts to be pivotally attached to the tube with a pivot pin extending through the tube.

13. The frame as claimed in claim 1 further comprising a pivot with an outer thread securely attached to the front end of the body;

a through hole is defined in a middle position of the pivotal bar through which the pivot extends;

a nut screwed onto the pivot and abutting the pivotal bar so as to pivotally attach the pivotal bar to the body with the pivot,in cooperation with the nut;

at least one bushing mounted in the through hole in the pivotal bar to reduce friction between the pivot and an inner surface of through hole in the pivotal bar;

a lateral beam integrally mounted on the front end of the body to pivotally attach the pivotal bar on the lateral beam;

recesses defined in the top of the pivotal bar and corresponding to each tab on the body to receive each resilient member; and

a vertical tube mounted on each end of the pivotal bar for one of the wheel mounts to be pivotally attached to the tube with a pivot extending through the tube,

wherein the pivot is mounted on a middle position of the lateral beam; and

the tabs are respectively secured to opposite ends of the lateral beam.