JPH0440292U

JPH0440292U -

Info

Publication number: JPH0440292U
Application number: JP8257090U
Authority: JP
Priority date: 1990-08-03
Filing date: 1990-08-03
Publication date: 1992-04-06

Description

[Brief explanation of drawings]

第１図は、本考案の第１実施例を示す平面図、
第２図Ａは、同実施例にかかるピツクガードの平
面図、第２図Ｂは、第２図Ｂの矢示Ｃにおける同
ピツクガードの側面分解図、第３図は、同実施例
に用いられるフラツトコイルの斜視図、第４図は
、同実施例の全体回路図、第５図は、第４図に示
したＡ点からＤ点までの各点における各種波形を
示す図、第６図は、本考案の第２実施例を示す第
１図−線に沿う断面図、第７図は、本考案の
第３実施例を示す第１図−線に沿う断面図、
第８図は、本考案第４実施例にかかるピツクガー
ドの第２図Ａ矢示Ｃに相当する側面分解図、第９
図は、本考案の第５実施例を示す第１図−線
に沿う断面図、第１０図は、本考案の第６実施例
示す第１図−線に沿う断面図、第１１図は、
本考案第７実施例示す第１図−線に沿う断面
図、第１２図は、本考案第８実施例を示す第１図
−線に沿う断面図、第１３図は、従来の電子
弦楽器に用いられているピツクアツプ装置の斜視
図、第１４図は、第１３図に示した従来のピツク
アツプ装置を搭載した電子弦楽器の平面図、第１
５図は、第１４図−線に沿う断面図、第１６
図は、永久磁石からの磁力線の状態を示す説明図
である。３……永久磁石、２１……楽器本体、２２……
胴部、２５……弦、２６……ピツクガード、２９
……フラツトコイル、４０……コイル。 FIG. 1 is a plan view showing a first embodiment of the present invention;
FIG. 2A is a plan view of the pickguard according to the same embodiment, FIG. 2B is an exploded side view of the same pickguard taken along arrow C in FIG. 2B, and FIG. 3 is a flat coil used in the same embodiment. 4 is an overall circuit diagram of the same embodiment, FIG. 5 is a diagram showing various waveforms at each point from point A to point D shown in FIG. 4, and FIG. FIG. 1 is a sectional view taken along the line in FIG. 1 showing the second embodiment of the invention; FIG. 7 is a sectional view taken along the line in FIG. 1 showing the third embodiment of the invention;
FIG. 8 is an exploded side view corresponding to arrow C in FIG. 2A of the pick guard according to the fourth embodiment of the present invention;
The figures are a sectional view taken along the line of FIG. 1 showing the fifth embodiment of the present invention, FIG. 10 is a sectional view taken along the line of FIG. 1 showing the sixth embodiment of the invention, and FIG.
FIG. 12 is a sectional view taken along the line in FIG. 1 showing the seventh embodiment of the present invention, FIG. 12 is a sectional view taken along the line in FIG. FIG. 14, a perspective view of the pickup device used, is a top view of an electronic stringed instrument equipped with the conventional pickup device shown in FIG.
5 is a sectional view taken along the line of FIG. 14 and 16.
The figure is an explanatory diagram showing the state of magnetic lines of force from a permanent magnet. 3... Permanent magnet, 21... Musical instrument body, 22...
Body, 25...Strings, 26...Pickguard, 29
...Flat coil, 40...coil.

Claims

[Claims for Utility Model Registration] (1) A pick-up signal output section that detects mechanical vibrations of strings stretched over the main body of a musical instrument and outputs a pick-up signal corresponding to the mechanical vibrations is arranged opposite to the strings. A pick-up device characterized in that it is embedded in a pick guard disposed on the body of the musical instrument body. (2) The string receives a high-frequency signal from the high-frequency signal generating means and radiates the high-frequency signal into space as an electromagnetic wave, while the pickup signal output section receives a high-frequency signal from the high-frequency signal generating means and radiates the high-frequency signal into space as an electromagnetic wave. 2. The pick-up device according to claim 1, wherein a temporal change in the pick-up signal is detected and outputted as the pick-up signal. (3) The pickup device according to claim 1 or 2, wherein the pickup signal output section is a coil. (4) The pickup device according to claim 3, wherein the coil is a thin film coil. (5) The pickup device according to claim 3 or 4, wherein the coil is provided with a convex portion projecting in a direction approaching the string at a portion facing the string. (6) The string is formed of a magnetic material, and a permanent magnet is further embedded in the pickguard to form a magnetic field in the space surrounding the string, and the pick-up signal output section is configured to generate a magnetic field in response to the mechanical vibration of the string. 2. The pickup device according to claim 1, wherein the pickup device is a coil that outputs an induced electromotive force as the pickup signal in accordance with a changing magnetic flux density of the magnetic field. (7) The pickup device according to claim 6, wherein the coil is a thin film coil, and the permanent magnet is formed in a thin plate shape along the thin film coil. (8) A plurality of strings are stretched in the main body of the musical instrument, a plurality of the permanent magnets are buried facing the plurality of strings, and the coil is wound around each permanent magnet. 7. The pickup device according to claim 6. (9) The pick-up device according to claim 8, wherein the pick guard is formed with a bulge portion for receiving the permanent magnet and a coil wound around the permanent magnet. (10) The pickup device according to claim 9, wherein the pick guard has the bulge formed on a lower surface side not facing the strings. (11) A plurality of strings are strung on the main body of the musical instrument, a plurality of convex portions are formed on the permanent magnet facing the plurality of strings, and the convex portions are covered with a thin film coil. 7. The pick-up device according to claim 6.