Abstract: A stepping motor includes a housing, a supporting shaft, a rotor, and a stator. The housing includes a first wall and a second wall facing each other. The supporting shaft is inserted into a through hole of the rotor and is held by the first wall and the second wall. The rotor has a first end face and a second end face in an axial direction of the rotor. The first end face and the second end face are separated from the first wall and the second wall, respectively. A lubricant fills between the through hole and the supporting shaft, and an oil repellent agent is applied at a predetermined first area of the first wall around the supporting shaft and a predetermined second area of the second wall around the supporting shaft.

Abstract: A stepping motor includes a housing a supporting shaft a rotor, and a stator. The housing includes a first wall and a second wall facing each other. The supporting shaft is inserted into a through hole of the rotor and is held by the first wall and the second wall. The rotor has a first end face and a second end face in an axial direction of the rotor. The first end face and the second end face are separated from the first wall and the second wall, respectively. A lubricant fills between the through hole and the supporting shaft, and an oil repellent agent is applied at a predetermined first area of the first wall around the supporting shaft and a predetermined second area of the second wall around the supporting shaft.

Abstract: A stepping motor includes a housing a supporting shaft a rotor, and a stator. The housing includes a first wall and a second wall facing each other. The supporting shaft is inserted into a through hole of the rotor and is held by the first wall and the second wall. The rotor has a first end face and a second end face in an axial direction of the rotor. The first end face and the second end face are separated from the first wall and the second wall, respectively. A lubricant fills between the through hole and the supporting shaft, and an oil repellent agent is applied at a predetermined first area of the first wall around the supporting shaft and a predetermined second area of the second wall around the supporting shaft.

Abstract: A stator is press fitted into a recess of a casing. The recess has a chamfered portion. The chamfered portion is arranged between an inlet opening end of the recess and a bottom of the recess in such a manner that a width of the recess is progressively increased along the chamfered portion from a bottom side toward an inlet opening end side of the recess. The chamfered portion has a plurality of slant surfaces, which are arranged one after another in the press fitting direction of the stator. Angles of the plurality of slant surfaces with respect to the press fitting direction of the stator decrease from the inlet opening end side of the recess toward the bottom side of the recess.

Abstract: A circuit board is divided into two portions: a flexible printed circuit board; and a printed circuit board. On the flexible circuit board, movements whose layouts on the flexible circuit board are changed based on a design change in a dial plate due to a model change in a vehicle, light emitting diodes, a connector, a buzzer, and a changing-over switch are mounted. On the printed circuit board, a controller that radiates electrical noise during its operation is mounted. This enables a countermeasure for radiating of the electrical noise from the controller to be completed within the printed circuit board. This also enables a circuit design of the flexible printed circuit board to be easily performed. Man power for designing a combination meter can be thereby decreased; further, the combination meter capable of restricting generation of the electrical noise is achieved.

Abstract: A stator is press fitted into a recess of a casing. The recess has a chamfered portion. The chamfered portion is arranged between an inlet opening end of the recess and a bottom of the recess in such a manner that a width of the recess is progressively increased along the chamfered portion from a bottom side toward an inlet opening end side of the recess. The chamfered portion has a plurality of slant surfaces, which are arranged one after another in the press fitting direction of the stator. Angles of the plurality of slant surfaces with respect to the press fitting direction of the stator decrease from the inlet opening end side of the recess toward the bottom side of the recess.

Abstract: A circuit board is divided into two portions: a flexible printed circuit board; and a printed circuit board. On the flexible circuit board, movements whose layouts on the flexible circuit board are changed based on a design change in a dial plate due to a model change in a vehicle, light emitting diodes, a connector, a buzzer, and a changing-over switch are mounted. On the printed circuit board, a controller that radiates electrical noise during its operation is mounted. This enables a countermeasure for radiating of the electrical noise from the controller to be completed within the printed circuit board. This also enables a circuit design of the flexible printed circuit board to be easily performed. Man power for designing a combination meter can be thereby decreased; further, the combination meter capable of restricting generation of the electrical noise is achieved.

Abstract: A pointer of a meter is driven by a driving unit disposed behind a scale plate. A wiring board for supplying electric current to a stepping motor included in the driving unit is placed between the scale plate and the driving unit. Plural light sources for illuminating the pointer are placed on the wiring board around a pointer shaft in the vicinity thereof. Terminal pins for supplying electric current to the stepping motor are positioned on the wiring board apart form the light sources to avoid wiring congestion around the pointer shaft. Since the light sources are freely placed around the pointer shaft, the light from the light sources can be uniformly distributed around the pointer shaft with high luminance.

Abstract: A pointer of a meter is driven by a driving unit disposed behind a scale plate. A wiring board for supplying electric current to a stepping motor included in the driving unit is placed between the scale plate and the driving unit. Plural light sources for illuminating the pointer are placed on the wiring board around a pointer shaft in the vicinity thereof. Terminal pins for supplying electric current to the stepping motor are positioned on the wiring board apart form the light sources to avoid wiring congestion around the pointer shaft. Since the light sources are freely placed around the pointer shaft, the light from the light sources can be uniformly distributed around the pointer shaft with high luminance.

Abstract: A zero-position stopper to stop the pointer when it is returned to the zero position and a maximum-position stopper to stop the pointer when it is located at the maximum position are provided. A microcomputer generates a zero-start signal when an ignition switch is turned on so that pointer moves from the zero position and engages the maximum position stopper, and thereafter generates a zero-return signal so that the pointer returns to the zero-position stopper. When the pointer engages the zero-position stopper, the computer does not generate a control signal.