JPS6222985Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a mounting structure for a micro switch, which facilitates the mounting work of the micro switch and maintains an accurate positional relationship between the micro switch and its operating rod. It is something.

Previously, the micro switch and the operating rod that operated its actuator were attached separately using screws, etc., which was time-consuming and difficult to maintain the positional relationship between the micro switch body and the operating rod. There were some shortcomings.

The present invention provides a mounting structure for a microswitch that eliminates the above-mentioned conventional drawbacks, and one embodiment thereof will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a microswitch main body. Two fixing holes 2 are formed in this main body 1, and an actuator 3 is provided extending from one side thereof. 4 is an upper case molded from a synthetic resin material, and 5 is a lower case also molded from a synthetic resin material. A step 6 is formed on the periphery of the lower case 5 into which the periphery of the upper case fits, and holes 8 into which a plurality of protrusions 7 formed on the upper case 4 fit are formed at appropriate positions in the step 6. It has been done. 9
are protrusions formed protruding from the upper case 4 for positioning the microswitch body, and both protrusions 9 are formed to fit into holes 2 formed in the microswitch body 1. 10 is also the lower case 5
This is a protrusion formed in the hole 2 and is fitted into the hole 2 from the opposite side to the protrusion 9. Reference numeral 11 denotes an operating rod, and both ends 13 and 14 of a shaft 12 provided approximately in the center thereof are bearings 1 provided in the upper case 4, respectively.
5 and a bearing 16 provided on the lower case 5 so as to be rotatable. In this supported state, one end 17 of the operating rod 11 is in a position facing the actuator 3, and the other end 18 is in a position facing both the upper and lower cases 4, 5.
It extends outward from the case formed by penetrating the opening 19. 20 is a case fixing hole formed in the upper case 4, and 21 is a case fixing hole formed in the lower case 5. Both holes 20 and 21 are formed at the same position.

Therefore, the protrusions 9, 10 of the upper and lower cases 4, 5 are fitted into the hole 2 of the microswitch main body 1, and both ends 13, 14 of the shaft 12 of the operating rod 11 are fitted into the bearings 15, 16. By fitting the protrusion 7 of the upper case into the hole 8 of the lower case and fitting the periphery of the upper case 4 into the step of the lower case 5, the micro switch main body 1 and the operating rod 11 are attached to both the upper and lower cases 4 and 5. be held in place. In this state, fixing hole 2
By passing screws through holes 0 and 21 and fixing the screws to a board or the like, the installation of the micro switch main body 1, upper and lower cases 4 and 5, and operation rod 11 is completed.

FIG. 4 shows an example in which a micro switch is attached to a dryer using the attachment structure of the present invention. In this FIG. 4, 22 is a compressor, 23 is a condenser,
24 is an evaporator, which forms a normal refrigeration cycle. 25 is Juan;
Room air is sucked in, passes through an evaporator 24 and a condenser 23, and is then discharged from a duct 26 to dry the target room or clothes. 27 is a water receiver, which stores condensed water generated in the evaporator 24. This water receiver 27 is elastically supported upward by a spring or the like. Reference numeral 28 denotes a mounting plate fixed to the dryer main body base, and a switch mounting structure is attached to this mounting plate 28 with screws passing through fixing holes 20, 21 in both the upper and lower cases. At this time, the other end 18 of the operating rod 11 is positioned so as to face the bottom surface of the water receiver. Therefore, when a large amount of water accumulates in the water receptor 27 and becomes heavy, the water receptor 27 descends against the elastic force of the spring, and the operating rod 11 rotates around the shaft 12, causing the actuator 3 to move. Move the micro switch body 1
Activate. This stops the drying operation and prevents water from overflowing from the water receiver 27.

As is clear from the description of the embodiments above, according to the micro switch mounting structure of the present invention, the positional relationship between the micro switch body and the operating rod is determined by the protrusion and bearing formed on both or one of the upper and lower cases. It is possible to maintain accuracy, and the installation work can be easily done by fixing the upper and lower cases at the same time, making it easier to install the microswitch main body and the operating rod.

Note that the protrusion is not limited to the one that fits into the hole 2 as in the embodiment, but also the one that fits into the micro switch main body 1.
It may be shaped so that the outer periphery of the

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of a microswitch mounting structure according to an embodiment of the present invention, Fig. 2 is a partially sectional view showing the assembled state, Fig. 3 is a partially sectional view showing the assembled state, and Fig. 4. is a cross-sectional view of a dryer that employs the same microswitch mounting structure. 1... Micro switch body, 2... Hole, 3...
...actuator, 4 ... upper case, 5 ... lower case, 9, 10 ... protrusion, 11 ... operation rod.

Claims (1)

[Scope of utility model registration request] A micro switch main body, an upper case and a lower case that hold the micro switch main body, and are rotatably supported by the upper and lower cases, one end facing the actuator of the micro switch, and the other end facing the upper and lower cases. It consists of an operating rod that protrudes outward from the case formed with a step, into which the periphery of the lower case fits, and a hole in the bottom of the step into which the upper case protrusion fits, and which allows both the upper and lower cases to fit together. A microswitch mounting structure comprising a protrusion for positioning the microswitch body formed on either or both of the above.