JPS6343776Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a door switch device.

Conventional door switch devices open and close the switch via an operating rod by opening and closing the door, but in this case, the length of the operating rod is adjusted so that the switch is activated when the door is opened a certain amount. It is necessary to make adjustments, and this adjustment is very troublesome and takes a considerable amount of time.

This invention provides a concave portion and a convex portion that fit into each other on either the door or the switch member and the operating rod, and provides a large number of linear fitting grooves with different depths around the concave portion. In addition, by providing one fitting piece that can be selectively fitted into each of the fitting grooves around the convex portion, the fitting depth of the operating rod can be easily changed in multiple stages. This makes it extremely easy to adjust the opening/closing position of the switch using the door, and reduces manufacturing costs.

An embodiment of this invention shown in FIGS. 1 to 7 will be described in detail below.

1 and 2 show a clothes dryer employing this invention, 1 is a main body, 2 is a drum rotatably installed in the main body 1, and 3 is a device for driving the drum 2. A motor 4 is a door that opens and closes a clothes slot provided on the front side of the main body 1. 5 is a door switch device, which opens and closes the door;
Controls stopping of the motor 3 that drives the drum 2.
A dehumidifier 6 removes moisture from the air sent from the drum 2 and supplies dry air into the drum 2 again. 7 is a time switch.

FIG. 3 shows a door switch device 5, and 8 is a support member for an operating rod provided on the door 4. A cylindrical recess 8a is provided in the center of the support member 8, and a cylindrical recess 8a is provided on the inner surface of the recess 8a. There are four linear fitting grooves 8b with different values. 9 is a recess 8a of the support member 8
The operating rod is fitted with a cylindrical convex portion 9a arranged in the center thereof, and one fitting piece 9b provided on the outer periphery of the convex portion 9a and capable of fitting into each of the fitting grooves 8b. Consisting of Reference numeral 10 denotes a switch, which is attached to the inner surface of the main body 1 by a mounting plate 11. Reference numeral 12 denotes a leaf spring for operating the switch 10, the tip of which is positioned opposite to the through hole 13 provided in the main body 1. The tip portion 9c of the operating rod 9 enters or escapes from the through hole 13 as the door 4 opens and closes, and is inserted into the switch 10 via the leaf spring 12.
Open/close operations.

In the device configured as described above, the function of the door switch device 5 will be explained below. When the door 4 is opened while the drum 2 is rotating, the support member 8 and the operating rod 9 move downward together with the door 4 as shown in FIG. Since the switch 10 is opened at a certain position, the motor 3 stops and the rotation of the drum 2 also stops. Conversely, when the door 4 is closed, the support member 8 and the operating rod 9 move upward together with the door 4 in FIG. 3, and in this position the switch 10 is closed and the motor 3 can be driven.

In this process, if the switch 10 is not released when the door 4 is opened, the rotation of the drum 2 will not stop even if the door 4 is opened while the drum 2 is rotating, and the worker may accidentally put his or her hand inside the drum 2. There is a risk of injury if the product is placed in the door 4.
It is very important to adjust the positional relationship between the operating rod 9 and the switch 10 so that the switch 10 opens when the switch is opened a certain amount. If the length of the operating rod 9 is kept constant, the opening timing of the switch 10 will vary depending on the product due to variations in the switch 10, mounting plate 11, leaf spring 12, etc., so the length of the operating rod 9, that is, the operation The fitting depth of the rod 9 must be adjusted. To explain the adjustment process,
First, insert the convex portion 9a of the operating rod 9 into the concave portion 8 of the support member 8.
In step a, fit the fitting piece 9b of the operating rod 9 into the shallowest fitting groove 8b of the support member 8, and check whether the switch 10 opens when the door 4 comes to a certain position. If so, remove the operating rod 9 once, fit the fitting piece 9b into the fitting groove 8b deeper than the previous fitting groove 8b, and check whether the switch 10 opens at a certain opening position of the door 4. Then, the fitting depth of the operating rod 9 is determined by sequentially fitting the fitting pieces 9b of the operating rod 9 into the deeper fitting grooves 8b until a suitable fitting position of the operating rod 9 is found. Therefore, the fitting depth of the operating rod 9 can be easily changed in multiple stages, and the opening/closing position of the switch 10 by the door 4 can be adjusted very easily.

Furthermore, as shown in FIGS. 8 and 9, instead of the fitting groove 8b of the operating rod 8, four fitting grooves 8c of different depths are provided on the circumference away from the recess 8a, The fitting depth of the operating rod 9 can also be adjusted by providing one fitting piece 9d on the support member 9 apart from the convex portion 9a so as to be able to fit into each of the fitting grooves 8c.

Further, there is no problem even if the fitting relationship between the support member 8 and the operating rod 9 is reversed, or the supporting member 8 and the operating rod 9 are attached to the switch 10 instead of the door 4.

As described above, this invention consists of a door provided on the main body of the device so as to be openable and closable, a switch provided on the main body, and a switch provided on either the door or the switch that comes into contact with the other when the door opens and closes. an operating rod for opening and closing the switch, the one member and the operating rod are provided with a recess and a protrusion that fit into each other, and a number of linear fitting grooves with different depths are formed around the recess. In addition, by providing one fitting piece around the convex portion that can selectively fit into each of the fitting grooves, the fitting depth of the operating rod can be easily changed in multiple stages. This makes it very easy to adjust the opening/closing position of the switch using the door, which reduces manufacturing costs.

[Brief explanation of the drawing]

Figures 1 to 7 are diagrams showing one embodiment of this invention, with Figure 1 being a front view of the clothes dryer, and Figure 2 being a front view of the clothes dryer.
The figure is a side view of FIG. 1, FIG. 3 is an enlarged sectional view taken along line A-A in FIG. 1, FIG. 4 is an enlarged sectional view of the support member of the operating rod, and FIG. 5 is a plan view of FIG. Fig. 6 is an enlarged front view of the operating rod, Fig. 7 is a bottom view of Fig. 6,
8 and 9 show other embodiments of this invention, FIG. 8 being a plan view of the support member of the operating rod, and FIG. 9 being a bottom view of the operating rod. Explanation of the symbols: 1 is the main body, 4 is the door, 5 is the door switch device, 8 is the support member, 8a is the recess, 8b,
8c is a fitting groove, 9 is an operating rod, 9a is a convex portion, 9b,
9d is a fitting piece, 9c is a tip, 10 is a switch, and 12 is a leaf spring.

Claims (1)

[Scope of utility model registration request] A door provided on the main body of the device so as to be openable and closable, a switch provided on the main body, and an operating rod provided on either the door or the switch, which opens and closes the switch by coming into contact with the other when the door opens and closes. The one member and the operating rod are provided with a concave portion and a convex portion that fit into each other, and around the concave portion, a large number of linear fitting grooves with different depths are provided, and around the convex portion. The device is characterized in that one fitting piece that can be selectively fitted into each of the fitting grooves is provided, the fitting depth of the operating rod is regulated in multiple stages, and the opening/closing position of the switch by the door is adjusted. door switch device.