JPS6115545Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switch drive mechanism, and more particularly to a switch drive mechanism for interlocking a pair of switches.

2. Description of the Related Art Slide switches and the like are used as parts for switching circuits in electronic application equipment and the like. Particularly in audio equipment, since circuits are configured for left and right channels, for example, a pair of slide switches is required for each circuit in order to switch both circuits in conjunction. Conventionally,
As a device for interlocking this pair of slide switches, for example, a leaf spring is attached to the tip of a switch operator of a switch control mechanism, and the operator is installed in the center between both armatures, and both armatures are pushed by the leaf spring. The switch was activated by attaching the switch. However, in such a device, the operation becomes unstable due to deflection of the leaf spring, etc.
The drawback was that both switches could not be switched evenly.

The object of the present invention is to provide a switch drive mechanism that overcomes the above-mentioned drawbacks.

The present invention will be explained in detail below using the drawings.

FIG. 1 is a perspective view of the device according to the present invention, and FIG. 2 is a sectional view taken along a plane including arrows X--X and Y--Y in FIG. In the figure, a pair of slide switches 1a and 1b have through holes 2 at their ends that serve as engaging parts.
It has armatures 3a and 3b formed with numerals a and 2b. By moving the armatures 3a, 3b by a predetermined amount in the direction opposite to the switch, the slide switches 1a, 1b are turned on, and the spring pressure of the switches themselves causes the armatures 3a, 3b to be turned on.
returns to its original position, turning it off. The connecting member 4 for interlocking the slide switches 1a, 1b has elasticity, and due to this elasticity, it engages with both openings of the through holes 2a, 2b and holds the armatures 3a, 3b in a pinched manner. It consists of a pair of gripping parts 5a, 5b, and a support plate 7 that supports the gripping parts 5a, 5b at a predetermined interval and has a recess 6 in the middle of the part where the gripping parts 5a, 5b are supported. The connecting member 4 is made of a rigid synthetic resin, and in order to further increase the strength, on the surface opposite to the surface supporting the gripping parts 5a and 5b,
It has a cross section bent in a direction perpendicular to the arrangement direction of the gripping parts 5a and 5b. Moreover, the grip part 5a,
5b is formed to fully engage with the through holes when a force is applied in the opposite direction to the slope surface formed to allow the ends of the armatures 3a, 3b to slide and engage with the through holes 2a, 2b. It consists of a claw part 5a-1 having a vertical surface, and an arm part 5a-2 extending to a length that allows the end of the armature to be opened elastically without any trouble when sliding the end of the armature on the inclined surface. The inclined surface preferably has a circular arc shape so that it can be easily engaged with the through hole. Furthermore, the tip of the drive rod 8 driven by a switch control mechanism (not shown) engages with a recess 6 formed in the support plate 7. Furthermore, since the operating force of the drive rod 8 is designed to be applied at the center of the pair of slide switches, the movement of the drive rod 8 does not necessarily have to be a parallel movement; The balance of movement is maintained.

When assembling this device as described above, the arm portion 5a is pressed into the armatures 3a and 3b of the pair of slide switches mounted on the printed circuit board 9 with an appropriate force in a direction parallel to the switches. -2 opens due to its own elasticity, so that the claw portion 5a-1 can be engaged with the through hole with one touch. Further, a hole 9' is provided in the printed circuit board 9 at a position corresponding to the recess 6 of the support plate 7, and has a size that does not hinder the movement of the drive rod 8. The drive rod 8 passes through this hole 9' into the recess. 6.

The device configured as described above includes a pair of mutually connected gripping portions that grip the armature by engaging with the engaging portion (through hole) of the armature using the elasticity. Since the drive rod and the pair of switches are connected via the gripping part, one-touch engagement is possible and assembly is easy, and maintenance and switch replacement are also easy.Also, there is no flexing in the connecting member. Since the operating force of the drive rod is balanced at the midpoint between the pair of switches, the switching operation is stable.

[Brief explanation of the drawing]

1 is a perspective view of the device according to the present invention, and FIG. 2 is a sectional view taken along a plane including arrows X--X and Y--Y in FIG. 1. Explanation of symbols of main parts, 1a, 1b...slide switch, 3a, 3b...armature, 4...
...Connecting member, 5a, 5b...Gripping portion, 7...Support plate, 8...Driving rod.

Claims (1)

[Scope of utility model registration request] A drive mechanism for driving a pair of changeover switches each having an armature having an engaging portion at an end, the drive mechanism comprising: a pair of gripping portions connected to each other that have elasticity and grip the armature by the elasticity; , a connecting member comprising a support plate portion that supports the gripping portion at a predetermined interval and has a recess approximately in the center of the portion supporting the gripping portion, and a distal end thereof engages with the recess of the connecting member; A switch drive mechanism comprising a drive rod configured to.