JPH0245936Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> This invention relates to a push-button switch device in which a switch part and an operating part are constructed separately.

<Prior art and its drawbacks> In general, in this type of switch device, a push button shaft is movably inserted into a substantially cylindrical operating base mounted on a control panel, etc., and a return mechanism is inserted between the push button shaft and the base. By pushing the push button shaft against the spring force of the return spring through a spring, it is possible to press a switch or switch that is fixed to a wiring board, etc. in a control device via a pusher on the tip end of the push button shaft. It is designed to drive the operating rod of a switch such as a block (contact block).

By the way, the amount of protrusion of the pusher when the push button shaft is pushed in is determined from the operating stroke of the operating lever of the switch used as the other party and the distance to the operating lever, and is constant. For this reason, if the distance to the actuating rod is changed or the switch part has a different stroke, a corresponding operating part must be prepared separately, resulting in poor versatility.

<Purpose of the invention> The purpose of this invention is to eliminate the above-mentioned drawbacks, and to provide a push button switch device that can easily accommodate changes in the mounting position of the switch part, changes in the switch itself, etc., and can expand its versatility. It is in.

<Structure and effect of the invention> This idea is structured as follows.

A push button shaft is fitted into the substantially cylindrical base of the operating section so as to be able to pivot, and the spring force of a return spring is applied to the push button shaft.

A holder that press-fits and holds the shaft body in an adjustable position is fixed to the tip side of the push button shaft.

A pusher is fixed to the tip of the shaft, which drives the operating rod of the switch section by pushing the pushbutton shaft.

With the above structure, according to this invention, even if the mounting position of the switch part is changed, the switch can be operated by adjusting the protrusion amount of the presser by moving the shaft relative to the holder. The actuating rod of the section can be driven, thus making it possible to share the operating section.

<Embodiment> FIG. 1 is a sectional view of a push button switch device which is an embodiment of this invention.

In the figure, reference numeral 1 indicates an operation section attached to a control panel 2 or the like, and reference numeral 3 indicates a switch section attached to a wiring board 4. A threaded portion 7 into which a tightening ring 6 is screwed is formed on the outer circumferential surface of the small diameter portion of the substantially cylindrical operating portion base 5 . 8 is a rubber washer. A push button shaft 9 is fitted into the operation unit base 5 so as to be able to pivot, and a push button 10 is mounted on the operation surface of the push button shaft 9. Between the annular flange 9a formed on the outer periphery of the push button shaft 9 and the annular groove 5a on the inner peripheral surface side of the operation unit base 5,
A spring member such as a compression coil spring 11 is provided for returning the push button shaft.

The tip side of the push button shaft 9 is configured as a bracket 12, and a holder 13 is fixed to the bracket 12 by, for example, press fitting.
As shown in FIGS. 3 and 5, this holder 13 includes a cylindrical plate 131 made of synthetic resin with a plurality of ribs 130 provided on the outer circumferential surface, and a cylindrical plate 131 formed on the inner circumferential side of this cylindrical body 131 at equal intervals in the radial direction. It is composed of a plurality of pieces, for example, three shaft press contact pieces 132, which can be elastically deformed. The shaft body 15 is press-fitted into the press-fit hole 14 formed at the inner end surface of each of the three shaft body press-contact pieces 132 so that the shaft body 15 can be adjusted in axial movement. A pusher 16 for driving the operating rod 3a of the switch section 3 is fixed to the tip of the shaft 15.

In the above configuration, when the push button shaft 9 is pushed in from the off position shown in FIG. 1, the pusher 16 is displaced as shown in FIG. The operating rod 3a is pushed and driven. When the pushing operation of the push button shaft 9 is released, the operating rod 3a also returns to its original position.

When the distance between the pusher 16 and the operating rod 3a changes, for example, becomes shorter, due to a change in the mounting position of the switch section 3, the shaft 15 is moved axially relative to the holder 13 to extend the amount of protrusion. By setting the value to a small value, the above change can be easily accommodated without separately preparing the operation section 1. Since the shaft body 15 is configured to be able to adjust the shaft movement by press fitting means into the holder 13, if the amount of protrusion of the pusher 16 is made large, the shaft body 15 will be automatically moved to the holder when the push button 9 is pressed. There is an advantage that it can be positioned relative to 13.

The material and shape of the holder 13 is not limited as long as it press-fits and holds the shaft 15 so that its axial movement can be adjusted. If the shaft body 15 is held by the pieces 132 and fixed to the bracket 12 by the ribs 130, the cylinder body 131 is pressurized from both sides and tends to bend, so the elastic force is effectively used to hold the shaft body. 15 can be held in a state with a high pressure contact force, and the fear of rattling of the shaft body 15 can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a push button switch device according to an embodiment of this invention when it is not in operation, Fig. 2 is a sectional view of the same device when it is in operation, Fig. 3 is a perspective view of the holder and shaft, and Fig. 4 is a rear cross-sectional view of the holder in a state where the shaft body is press-fitted. 3... Switch portion, 3a... Operating rod, 5... Operating unit base, 9... Push button shaft, 11... Spring member for return, 13... Holder, 15... Shaft body, 16... Presser.

Claims (1)

[Claims for Utility Model Registration] A push button shaft that is fitted into a substantially cylindrical operating unit base so as to be able to pivot; a spring member for returning the push button shaft that is installed between the push button shaft and the operating unit base; , a holder fixed to the tip side of the push button shaft to press-fit and hold the shaft body in an adjustable position; and a pusher fixed to the tip of the shaft body to drive an operating rod of the switch section by pushing the push button shaft. , a push button switch device.