Fastening arrangement, in particular for fastening an electric drive to an electric bicycle

Patent metadata

Field	Value
Publication number	US-12503195-B2
Application number	US-202118000780-A
Country	US
Kind code	B2
Filing date	Aug 19, 2021
Priority date	Aug 28, 2020
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

A fastening system configured for fastening a device to a hollow component having two holes situated opposite one another. The fastening system includes a first screw that has a head and that is designed to be guided through a first hole of the holes, and a sliding sleeve having an outer diameter that has a tolerance. The sliding sleeve is designed to accept the first screw at the second hole of the holes. An outer diameter of the sliding sleeve is displaceable in the axial direction of the first screw due to a clearance fit.

First claim

What is claimed is:

1 . A fastening system, configured to fasten a device to a hollow component that has two holes situated opposite one another, the fastening system comprising:
a first screw that has a head and that is configured to be guided through a first hole of the holes; and a sliding sleeve that is configured to accept the first screw, the sliding sleeve being displaceable relative to the hollow component and/or to the device, wherein the sliding sleeve has an outer diameter that has a tolerance, the sliding sleeve being configured to accept the first screw at a second hole of the holes, and wherein a clearance fit is formed at the outer diameter of the sliding sleeve, so that the sliding sleeve is displaceable in an axial direction of the first screw, in the second hole.

2 . The fastening system as recited in claim 1 , wherein the sliding sleeve has an inner threading configured to accept the first screw.

3 . The fastening system as recited in claim 1 , further comprising:
a second screw, wherein the first screw has a blind hole having an inner threading and the second screw has an outer threading that is configured for a screw connection with the inner threading of the blind hole, or the first screw has an outer threading and the second screw has a blind hole with inner threading that is configured to accept the outer threading of the first screw.

4 . The fastening system as recited in claim 3 , wherein a length of the first screw is greater than a length of the second screw.

5 . The fastening system as recited in claim 1 , wherein the sliding sleeve has a main body and an inner flange, the main body being made of a different material than the inner flange, and the main body has a lower hardness than the inner flange.

6 . The fastening system as recited in claim 5 , wherein the sliding sleeve further has an outer flange, the outer flange being made of the same material as the inner flange.

7 . The fastening system as recited in claim 6 , wherein the outer flange and the inner flange are perforated discs that are fixedly connected to the main body or are loosely placed on the main body.

8 . The fastening system as recited in claim 5 , wherein the clearance fit is formed at an outer circumference of the main body.

9 . The fastening system as recited in claim 1 , further including a first socket and a second socket, the first screw being guided through the first socket and the second socket.

10 . The fastening system as recited in claim 9 , wherein the first socket has an inner socket and an outer socket, and/or the second socket has an inner socket and an outer socket, and wherein the inner socket is made of a different material than the outer socket.

11 . The fastening system as recited in claim 10 , wherein a hardness of the inner socket is greater than a hardness of the outer socket.

12 . The fastening system as recited in claim 10 , wherein the second socket has an inner threading and the first screw has an outer threading that is engaged with the inner threading of the second socket.

13 . The fastening system as recited in claim 10 , wherein the first socket and the second socket each have an outward-oriented flange at one of their ends, the flange being formed in by the inner socket and the outer socket.

14 . The fastening system as recited in claim 1 , further comprising a damping element made of a steel wire mesh that has a centric opening, at least the first screw being guided through the damping element.

15 . The fastening system as recited in claim 1 , wherein the sliding sleeve is situated in the second hole.

16 . A vehicle, comprising:
a device; a hollow component having two holes situated opposite one another; and a fastening system configured to fasten the device to the hollow component, the fastening system including:
a first screw that has a head and that is configured to be guided through a first hole of the holes, and
a sliding sleeve that is configured to accept the first screw, the sliding sleeve being displaceable relative to the hollow component and/or to the device,
wherein the sliding sleeve has an outer diameter that has a tolerance, the sliding sleeve being configured to accept the first screw at a second hole of the holes, and wherein a clearance fit is formed at the outer diameter of the sliding sleeve, so that the sliding sleeve is displaceable in an axial direction of the first screw, in the second hole.

17 . The vehicle as recited in claim 16 , wherein the vehicle is an electric bicycle, the device is an electric drive of the electric bicycle, and the hollow component is a frame of the electric bicycle or a frame component of the electric bicycle.

Assignees

• Bosch Gmbh Robert

Inventors

• Fleischer Claus
• Haeussermann Conrad
• Dikmenli Erdogan
• Hundt Harald
• Schipperges Jannis-Jeremias
• Yalcin Mehmet
• Niebel Peter
• Doelling Rolando
• Braun Sigmund
• Holst Stefan

Classifications

• B62K19/34

  Bottom brackets · CPC title

• B62M6/55 Primary

  power-driven at crank shafts parts · CPC title

• B62K19/30

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

• B62M6/40 Primary

  Rider propelled cycles with auxiliary electric motor · CPC title