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Rotary encoder and method of manufacturing the same

A rotary operation and encoder technology, which is applied in the direction of electrical components, electric switches, circuits, etc., can solve the problems that hinder the miniaturization and high precision of the rotary operation encoder 501

Inactive Publication Date: 2009-07-22
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the sag portion 14B is a factor hindering the miniaturization and high precision of the rotary operation type encoder 501

Method used

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  • Rotary encoder and method of manufacturing the same
  • Rotary encoder and method of manufacturing the same
  • Rotary encoder and method of manufacturing the same

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Experimental program
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Embodiment Construction

[0036] figure 1 and figure 2 These are a sectional view and an exploded perspective view of the rotary operation type encoder 1001 according to the embodiment of the present invention, respectively. The operation shaft 6 is made of insulating resin, and has a cylindrical central column portion 6A and an annular flange portion 6B protruding from the outer periphery of the central column portion 6A. A notch 6C for inserting an operation dial is provided in the upper portion of the central cylindrical portion 6A. On the upper surface of the annular flange portion 6B, ratchet grooves (click grooves) 6D extending radially are provided. The slide brush 8 is fixed to the lower surface of the annular flange portion 6B by crushing the caulking protrusion.

[0037] The bearing 9 is made of resin, and has an octagonal prism-shaped protrusion 9A and an octagonal flat plate 9B protruding from the outer periphery of the protrusion 9A. A cylindrical hole 9C penetrating through the bear...

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PUM

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Abstract

The invention provides a rotary encoder and a method of manufacturing the same. The rotary encoder includes a case made of insulating resin, a rotatable operation shaft, a slidable brush fixed to the operation shaft, and a signal contact embedded in a surface of the case. The slidable brush has a contacting section sliding on a surface of the case on a predetermined circumference according to a rotation of the operation shaft. The signal contact has an upper surface flush with the surface of the case, a first side surface connected to the upper surface at a first corner having a right angle, a second side surface connected to the upper surface at a second corner having a right angle, and a lower surface opposite to the upper surface. The first and side surfaces are positioned on the predetermined circumference. The lower surface has a width smaller than a width of the upper surface. This rotary encoder has a small size and outputs a signal precisely.

Description

technical field [0001] The present invention relates to a rotary operation type encoder for operating electronic equipment and a manufacturing method thereof. Background technique [0002] In recent years, various electronic devices have become popular, and in particular, rotary operation type encoders are often used in input operation parts such as menu switching and volume adjustment of car audio. For rotary operation type encoders, there are strong demands for miniaturization and high precision. [0003] Figure 10 and Figure 11 These are a cross-sectional view and an exploded perspective view of a conventional rotary operation type encoder 501 disclosed in Japanese Patent Application Laid-Open No. 11-135310. The operation shaft 6 is made of molded resin, and has a cylindrical central column portion 6A and an annular flange portion 6B protruding from the outer periphery of the central column portion 6A. A notch 6C for inserting an operation dial is provided in the upp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H19/54H01H11/00
CPCH01H19/20H01H19/585H01H19/11H01H2019/006
Inventor 菅原淳佐藤顺西本巧片冈宪治
Owner PANASONIC CORP