Trigger switch

• US 20030042122A1
• Filed: 09/05/2002
• Published: 03/06/2003
• Est. Priority Date: 09/06/2001
• Status: Active Grant

• Current Assignee: Mitsumi Electric Co., Ltd. (Minebea Mitsumi, Inc.)
• Original Assignee: Mitsumi Electric Co., Ltd. (Minebea Mitsumi, Inc.)
• Inventors: Sato, Takashi, Nakagawa, Akio, Tsutsui, Takaki, Nakazawa, Tetsuzo
• Granted Patent: US 6,740,830 B2
• Time in Patent Office: Days
• US Class Current: 200/343
• CPC Class Codes: H01H 2003/326 using bearings
• CPC Class Codes: H01H 21/24 biased to return to normal position upon removal of operating force

Abstract

A trigger switch includes a trigger member, a rotation detector and a first shaft. The first shaft rotatably supports the trigger member on the rotation detector, so that the rotation detector detects a rotation of the trigger member.

Claims

1. A trigger switch comprising:

a trigger member;

a rotation detector; and

a first shaft, which rotatably supports the trigger member on the rotation detector, so that the rotation detector detects a rotation of the trigger member.

2. The trigger switch as set forth in claim 1, further comprising a second shaft provided on the rotation detector;

and

wherein an end portion of the second shaft has a recessed portion; and

wherein an end portion of the first shaft is press-fitted into the recessed portion to couple the first shaft to the second shaft.

3. The trigger switch as set forth in claim 2, wherein the end portion of the first shaft has a protrusion;

and

wherein the second shaft has a pair of holding portions formed on the recessed portion to hold the protrusion.

4. The trigger switch as set forth in claim 1, further comprising a second shaft provided on the rotation detector;

and

wherein an end portion of the first shaft has a recessed portion; and

wherein an end portion of the second shaft is press-fitted into the recessed portion to couple the first shaft to the second shaft.

5. The trigger switch as set forth in claim 4, wherein the end portion of the second shaft has a protrusion;

and

wherein the first shaft has a pair of holding portions formed on the recessed portion to hold the protrusion.

6. The trigger switch as set forth in claim 1, wherein the rotation detector is a rotary volume.

7. The trigger switch as set forth in claim 1, wherein the rotation detector is a rotary encoder.

8. The trigger switch as set forth in claim 1, wherein the rotation detector is an optical rotary encoder.

9. The trigger switch as set forth in claim 1, wherein the rotation detector is a mechanical rotary encoder.

10. A trigger switch comprising:

a trigger member;

a first shaft, integrally provided on the trigger member;

a bearing member, rotatively supporting the first shaft; and

a rotation detector, coupled to the first shaft, and detecting a rotation of the first shaft in accordance with a movement of the trigger member.