JPH0353717U

JPH0353717U -

Info

Publication number: JPH0353717U
Application number: JP11366889U
Authority: JP
Priority date: 1989-09-28
Filing date: 1989-09-28
Publication date: 1991-05-24

Description

[Brief explanation of drawings]

第１図乃至第４図は本考案における第１実施例
であり、第１図は操作レバーが中立位置にあるボ
リユームスイツチの概略的構成を示す断面図、第
２図は操作レバーに検知部を有するコントローラ
とこのコントローラによつて制御される電磁石と
の関係を示す概略構成図、第３図は操作レバーが
操作されている状態のボリユームスイツチの概略
的構成を示す断面図、第４図は操作レバーを操作
した後のボリユームスイツチの概略的構成を示す
断面図、第５図乃至第８図は本考案における第２
実施例であり、第５図は操作レバーが中立位置に
あるボリユームスイツチの概略的構成を示す断面
図、第６図は操作レバーに検知部を有するコント
ローラとこのコントローラによつて制御される電
磁石との関係を示す概略構成図、第７図は操作レ
バーが操作されている状態のボリユームスイツチ
の概略的構成を示す断面図、第８図は操作レバー
を操作した後のボリユームスイツチの概略的構成
を示す断面図、第９図は従来のボリユームスイツ
チの概略的構成を示す概略構成図である。１０……ボリユームスイツチ、１１……シリン
ダ、１２……抵抗部、１３……第１ピストン、１
４……接触部、１５……操作レバー、１８……圧
力センサー（制御手段）、１９……コントローラ
（制御手段）、２０……第２ピストン、２１……
バイパス回路、２２……電磁石（固定手段）。 1 to 4 show a first embodiment of the present invention, and FIG. 1 is a cross-sectional view showing the schematic configuration of a volume switch with the operating lever in the neutral position, and FIG. 2 shows a detection section on the operating lever. FIG. 3 is a cross-sectional view showing the schematic configuration of the volume switch when the operating lever is being operated, and FIG. 4 is a schematic diagram showing the relationship between the controller and the electromagnets controlled by the controller. 5 to 8 are cross-sectional views showing the schematic configuration of the volume switch after operating the lever.
Fig. 5 is a sectional view showing a schematic configuration of a volume switch with the operating lever in the neutral position, and Fig. 6 shows a controller having a detection section on the operating lever and an electromagnet controlled by the controller. 7 is a cross-sectional view showing the schematic structure of the volume switch when the operating lever is operated, and FIG. 8 is a schematic configuration diagram of the volume switch after operating the operating lever. The sectional view shown in FIG. 9 is a schematic configuration diagram showing the general configuration of a conventional volume switch. 10... Volume switch, 11... Cylinder, 12... Resistance part, 13... First piston, 1
4... Contact portion, 15... Operation lever, 18... Pressure sensor (control means), 19... Controller (control means), 20... Second piston, 21...
Bypass circuit, 22...electromagnet (fixing means).

Claims

[Scope of utility model registration request]

a cylinder in which a gas medium is sealed; a resistance section that is provided along the axial direction of the cylinder and has electrical resistance in the axial direction of the cylinder; and a first piston that is provided in the cylinder so as to be able to move forward and backward; an operating lever that is located outside the cylinder and moves the first piston forward and backward; a contact portion that is integrally provided with the first piston and electrically contacts the resistance portion to form a variable resistance; a bypass circuit that bypasses and connects end portions across the movement range of the cylinder, a second piston that is housed in the cylinder or the bypass circuit and is driven by the pressure difference caused by the movement of the first piston, and the first piston a fixing means for fixing the second piston at a position where no pressure difference occurs in the cylinder when the second piston is in the neutral position; and control means for fixing the second piston by a means.