Control gear for a dynamo connected to a hub

• US 4,636,670 A
• Filed: 01/02/1985
• Issued: 01/13/1987
• Est. Priority Date: 05/04/1983
• Status: Expired due to Fees

• Current Assignee: Ingvar Nilsson Mekaniska AB
• Original Assignee: Ingvar Nilsson Mekaniska AB
• Inventors: Kallstrom, Olof
• Primary Examiner(s): Salce, Patrick R.
• Assistant Examiner(s): Rebsch, D. L.
• Application Number:
  US06/694,456
• Time in Patent Office: 741 Days
• Field of Search: 310/67 A, 310/68 R, 310/68 A, 310/75 R, 310/100, 310/115, 310/71, 310/27, 310/93, 310/75 B, 310/77, 322/12, 322/1, 362/192, 362/193, 188/70 R, 188/74
• US Class Current: 310/67.00A
• CPC Class Codes: B62J 6/12 Dynamos arranged in the wheel hub

Abstract

A hub and dynamo arrangement includes a wheel hub rotatable about the axis of a fixed shaft; a dynamo having an annular stator carried by the hub, an annular armature disposed radially inwardly of the stator and a current collector fixed to the armature for leading off current generated by the dynamo, the armature being mounted for rotation about the axis of the shaft independently of the hub; a control device for selectively arresting and permitting rotation of the armature about the axis of the shaft, whereby electric current is generated when the armature is arrested, the control device including a contact member mounted for radial movement relative to the axis of the shaft and mounted in a position such that the radial movement effects current-transmitting and rotation-locking engagement with the current collector; and an electrically-conducting, actuating wire attached to the contact member, both for transmitting current from the contact member, and for applying mechanical actuating force to the contact member.

Claims

1. A control device for a dynamo connected to a hub particularly a wheel hub and which dynamo is of the type incorporating stator and armature rotating with the hub and being arranged radially relative to each other and where the armature can be prevented from rotation by means of a locking device, and where a current collector is arranged to lead off current generated during arresting of the armature, characterized thereby, that the control device incorporates a connecting wire which is attached to said locking device, said locking device including a contact pin which is radially movable in a track located adjacent to the hub and which pin moves to current transmitting and rotation locking engagement with a current collector fixed to said armature, the connecting wire being made from an electrically conductive material and acting as a current conductor, which is fed with generated current via the current collector and the contact pin.

2. A control gear according to claim 1, characterized thereby,

that said contact pin (12) is biased by means of spring members (18) against a position releasing said current collector (8).

3. A control gear according to claim 1, characterized thereby,

that the current collector (8) is designed as an annular disc having a radially inwardly directed flange (9), which is arranged to be contacted and arrested by a groove formed in the contact pin (12).

4. A hub and dynamo arrangement comprising a wheel hub rotatable about the axis of a fixed shaft;

a dynamo having an annular stator carried by the hub, an annular armature disposed radially inwardly of the stator and a current collector fixed to the armature for leading off current generated by the dynamo;

means mounting the armature for rotation about the axis of said shaft independently of said hub;

a control device for selectively arresting and permitting rotation of the armature about the axis of said shaft, whereby electric current is generated when the armature is arrested, said control device including a contact member mounted for radial movement relative to the axis of said shaft and mounted in a position such that said radial movement effects current-transmitting and rotation-locking engagement with said current collector; and

an

electrically-conducting actuating wire attached to said contact member for transmitting current from said contact member and for applying mechanical actuating force to said contact member.

5. In a wheel hub and dynamo arrangement wherein the dynamo is of the type having two dynamo members rotatable with the hub and disposed radially relative to each other, the arrangement being such that electric current is generated during rotation of one member relative to the other member:

a current collector fixed to one of said members;

a control device for selectively arresting and permitting rotation of said one member relative to said hub whereby electric current is generated when said one member is arrested, said control device including an electrically conductive contact element mounted for radial movement in a position such that said radial movement effects current-transmitting and rotation-arresting engagement with said current collector; and

an electrically-conducting actuating wire attached to said contact element for transmitting current from said contact member and for applying mechanical actuating force to said contact member.