Title:
VARIABLE RESISTANCE SWITCH
Document Type and Number:
Japanese Patent JP3025053
Kind Code:
B2
Abstract:
PURPOSE: To provide a switch for energizing and controlling a small motor by which operation is started by continuous closing of a contact point and resistance in a motor control circuit is changed thereafter and to perform this operation procedure by impression of continuous constant force.
CONSTITUTION: First and second flexible contact point arms which are capable or respectively engaging with a pair of cam-followers, are provided, and the cam-followers are successively operated by an actuator 16, movable in a first direction and the opposite direction. The actuator 16 also has a wiper 30, integrally movable on a variable resistance 32, connected to a terminal. The first contact point arm is operated by an initial movement of the actuator 16 in the first direction and closes a first circuit through a corresponding switch, a second contact point arm is operated by a further movement of the actuator 16 along the first direction and closes a second circuit through a corresponding switch, and the variable resistance is incorporated into the circuit between one contact point arm and the terminal.
Inventors:
Fred El Krug
Gary Day Mayer
Greg. Gee. Topel
Gary Day Mayer
Greg. Gee. Topel
Application Number:
JP13073491A
Publication Date:
March 27, 2000
Filing Date:
March 20, 1991
Export Citation:
Assignee:
MILWAUKEE ELECTRIC TOOL CORPORATION
International Classes:
H01C10/38; H01H9/06; H01H21/00; H01H19/635; (IPC1-7): H01H21/00; H01H21/00; H01C10/38
Domestic Patent References:
| JP1109623A |
Attorney, Agent or Firm:
Asako Sudo