Invention Grant
- Patent Title: Tension nut lock system for an instrument
- Patent Title (中): 用于仪器的张紧螺母锁定系统
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Application No.: US12273976Application Date: 2008-11-19
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Publication No.: US07754953B2Publication Date: 2010-07-13
- Inventor: Akito Takegawa
- Applicant: Akito Takegawa
- Applicant Address: JP Chiba
- Assignee: Pearl Musical Instrument Co.
- Current Assignee: Pearl Musical Instrument Co.
- Current Assignee Address: JP Chiba
- Agency: Berenatio & White, LLC
- Main IPC: G10D13/02
- IPC: G10D13/02

Abstract:
A locking system to more accurately secure the foot pedal tension spring to the desired tension every time a tension adjustment is necessary. An adjustment screw is interconnected with the tension spring for adjusting the tension of the spring. A spring tension adjustment nut is threaded onto the adjustment screw. In accordance with the invention, a locking system is provided for locking the adjustment screw at one of a plurality of selected adjustment positions relative to the support and the foot pedal assembly in general. The selected adjustment positions are radially disposed about the central axis of rotation of said adjustment screw so that the adjustment screw may be locked into one of the selected adjustment positions relative to the support. With this locking system, the user may carefully select from a plurality of highly sensitive adjustment positions.
Public/Granted literature
- US20100122622A1 TENSION NUT LOCK SYSTEM FOR AN INSTRUMENT Public/Granted day:2010-05-20
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