JPH01116404U

JPH01116404U -

Info

Publication number: JPH01116404U
Application number: JP1988012473U
Authority: JP
Priority date: 1988-02-01
Filing date: 1988-02-01
Publication date: 1989-08-07
Anticipated expiration: 2003-02-01
Also published as: ATE167750T1; JPH0749761Y2; EP0327024B1; EP0327024A3; EP0327024A2; DE68928714D1; DE68928714T2; SG47078A1

Abstract

A rotation operating device of a variable resistor comprises: a knob (2, 22) to apply a rotating force from an outside; a supporting member (1, 10) formed with a hole (52) to rotatably support the knob; and an intermediate member (3) which is rotatably supported to the supporting member and transfers the rotating force of the knob to a sliding contact of the variable resistor (4). An upper surface member (51) of the supporting member is transparent or translucent. An annular groove (53) having both ends is formed on the inner surface of the upper surface member so as to surround the hole. Both ends of the annular groove are used as stoppers (54). The upper portion of the knob passes through the hole and faces the outside of the upper surface member. A first gear (23) is formed in the lower portion of the knob. The intermediate member has a bottom surface portion (31) and a peripheral wall (32). A notch (34) is formed in a part of the peripheral wall. A second gear (33) adapted to be come into engagement with the first gear is formed in a predetermined range on the inner surface of the peripheral wall. A position indicating portion (36) is located in the notch of the peripheral wall and is projected than the upper surface of the peripheral wall and is movably fitted into the annular groove of the supporting member. The position indicating portion is coupled with the botton surface portion through a spring member (35). The bottom surface portion is in engagement (37) with the sliding contact of the variable resistor supported to the supporting member.

Description

[Brief explanation of the drawing]

第１図は、実施例多回転ボリユームの分解斜視
図、第２図は、ボリユームシヤフトのギヤとイン
ジケータのギヤとを噛み合う状態を示す要部拡大
斜視図、第３図は、実施例多回転ボリユームを装
着した光電スイツチを示す外観斜視図である。２：ボリユームシヤフト、３：インジケータ、
４：ボリユーム本体、２３：ギヤ、３２：立上が
り壁部、３３：ギヤ、３５：板バネ部、３６：ボ
リユーム位置表示部、５１：透明状上面部、５２
：貫通孔、５３：溝部、５４：ストツパ。 Fig. 1 is an exploded perspective view of the multi-rotation volume of the embodiment, Fig. 2 is an enlarged perspective view of essential parts showing a state in which the gear of the volume shaft and the gear of the indicator are engaged, and Fig. 3 is the multi-rotation volume of the embodiment. FIG. 2 is an external perspective view showing a photoelectric switch equipped with a photoelectric switch. 2: Volume shaft, 3: Indicator,
4: Volume body, 23: Gear, 32: Rising wall portion, 33: Gear, 35: Leaf spring portion, 36: Volume position display portion, 51: Transparent top surface portion, 52
: Through hole, 53: Groove, 54: Stopper.

Claims

[Scope of utility model registration request]

a case body comprising a transparent upper surface, a through hole opened in the plane of the upper surface, a curved groove on the outer periphery of the through hole, and stoppers at both ends of the groove;
A volume shaft is provided with a gear at the lower part of the shaft, and a capturing part at the upper part of the shaft projects outward from the above-mentioned through hole, and a lower part of a disc-shaped bottom surface with a ring-shaped rising wall on the outer periphery engages with the volume body. It is provided with an engaging protrusion, and has a meshing gear that meshes with the gear of the volume shaft on the inner circumferential surface of the rising wall, and is disposed in the notch of the ring-shaped rising wall and is connected to the bottom surface via a spring plate. A multi-rotation volume comprising: an indicator having a volume position indicator whose upper part fits into the groove;