JP4398035B2 - Command device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a command device having an actuator having at least two first plunger elements and a switching device. The switching device comprises at least two contactors that are spatially isolated and electrically insulated. Each contactor can be moved by an assigned first plunger element and additionally an intervening second plunger element.
[0002]
[Prior art]
This type of command device is already known. These devices can accommodate multiple push buttons or buttons in a small space. It is also often used in methods where the function that causes an independent process to be triggered by one operation is dominant, such as two different electrical circuits.
[0003]
There is a need for a plunger element that interacts in the actuator, ie a first plunger element, a second plunger element therebetween, and a contactor. Here, the contactor shaft is usually provided outside the first plunger element, so that the contactor cannot be moved by the first plunger element, in particular when trying to be able to remove the actuator and the switching device. It can only be moved.
[0004]
[Problems to be solved by the invention]
However, such a command device also has disadvantages, and in particular, a relatively large structure is required to guide the second plunger element.
Furthermore, the induction of the second plunger element requires a certain structural depth of the actuator in order to actually obtain a suitable induction action. However, large assembly depths are not desirable for the ever-decreasing size of the system and switching device.
[0005]
It is an object of the present invention to improve a command device of the type as described in the introduction, to make it structurally small, and to allow a relatively smaller depth for assembly and mounting. It is to be.
[0006]
[Means for Solving the Problems]
This object is achieved in the present invention by fixedly connecting each second plunger element to each other. In this case, in order to move the spatially isolated contactors (contact portions) separately, it is necessary to incline the fixedly connected second plunger element forming one pressing piece. This means that it is no longer necessary to guide the complicatedly constructed second plunger element independently. In an extreme case, the fixedly connected plunger element can be configured in a plate shape, and the structural height of the command device can be easily reduced.
[0007]
It is particularly desirable for the contactor to have a relatively short contact stroke. This dimension means that a slight tilt of the fixedly connected second plunger element is already sufficient to cause a switching stroke. Furthermore, the fixedly connected plunger element can be accommodated, for example, in the housing of the switching device with little play, which allows a simple but accurate guidance. This contributes to a reliable and accurate contactor switching action.
[0008]
In a particularly preferred embodiment, two first plunger elements and two contactors are provided.
It is particularly beneficial if the present invention is developed and at least one, preferably all contactors, comprise a snap action disk. Since the snap action disc has a particularly small contact stroke, the structural height of the command device is reduced. In this regard, it would be beneficial if each contactor had a switching contact. Thus, in the case of a switch operated with a key, it is possible to open the make contact and close the break contact in each case, for example by turning the key, in order to cause the desired process in the two electrical circuits.
[0009]
Plunger element fixedly connected to at least one contactor in a manner corresponding to a contactor with a larger switching stroke, in order to make it clear to the operator that the switch has clearly switched, especially when the contactor has a short contact stroke It can be further proposed to provide an elastic element such as a compression spring between the two.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3 illustrate a command device switching device 1 according to the present invention. The switching device 1 has a two-part housing 2 with a bottom 4 having a connection contact 3 and a base 6 provided with a tubular sleeve 5. The base 6 and the bottom 4 are engaged with each other.
[0011]
At the bottom 4 of the housing 2, the two snap action disks 7, 8 are actuated by a single pressing piece 9 and otherwise require a second plunger element that is guided separately.
The tubular sleeve 5 engages with an actuator 30 as shown in FIG. The oval pressing piece 9 has pressure webs 10, 11 that are arcuate and are provided concentrically with the longitudinal axis of the switching device. The pressure webs 10, 11 interact with the first plunger elements 31, 32 of the actuator 30. For example, as a result of applying pressure to the pressure web 11 via the first plunger element 31, the pressing piece 9 of FIG. 1 tilts to the right, which affects the switching process of the snap action disk 7. Does not affect switching.
[0012]
In this way, the plunger element can be moved separately along the longitudinal axis 33 of the actuator 30 and the switching device 1. On the other hand, when a sufficient pressure is applied to the pressure web 10 by the first plunger element 32 of the actuator 30, the pressing piece 9 in FIG. 1 is tilted to the left and is switched via the snap action disk 8. 7 is not affected.
[0013]
In order to make the switching process more perceptible to the operator, a compression spring 12 is provided between the pressing piece 9 and each snap action disk 7. Thus, it is desirable that the associated snap action discs are not pushed down to a minimum extent via the pressing piece 9 on one side, but rather are switched only after a relatively large operating stroke. For this purpose, a compression spring 12 that defines the operating stroke is provided. Only after a predetermined operating stroke is achieved, the snap action disks 7, 8 move. As a result, the operator can clearly recognize the switching process even in the case of a contactor with a very small contact stroke, for example a snap action switch.
[0014]
The compression spring 12 is housed in a corresponding recess 13 of the pressing piece 9, and each peg 14 is further disposed at the bottom of the recess for fixation.
The pressing piece 9 is guided by the opposing lugs 15 and 16, and the pressing piece 9 is inclined at an angle by the guide grooves 17 and 18 that are somewhat larger than them.
[0015]
The lamp holder 19 is disposed around the longitudinal axis 33 of the switching device 1. As an example, lamp contacts 20 are provided at two opposite locations and are held in the housing 2 by a latching lug 21. (See Figure 3)
The pressure webs 10, 11 partially surround this lamp holder 19, as can be seen in FIGS.
[0016]
Furthermore, the actuator 30 has a tubular sleeve 34, like the switching device 1, which is pushed onto the tubular sleeve 5 of the switching device 1 and engages the tubular sleeve 5 by a latching means which is not illustrated. Is possible. The first plunger elements 31, 32 can be moved along the tubular sleeve 34 by rotating the rotation knob 35 shown as an example to the left or right about the neutral position. Thereby, the snap action disks 7 or 8 can be moved alternately in the direction of the pressure web 11 or 10.
[0017]
FIG. 5 shows a view of the first plunger elements 31, 32 as viewed from below. In this example, the plunger element consists of half of a tubular body that can move away from each other.
In the present invention, since the two plunger elements form one fixed pressing piece 9, the structure of the switching device 1 can be considerably simplified, and the structural height of the switching device 1 can be reduced. Furthermore, the switching device is generally reliable because the individual plunger elements are not tilted or stuck due to improper guidance.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a switching device having two housing portions for a command device according to the present invention, taken along section line II in FIG.
2 is an open plan view of the switching device in FIG. 1 when there is no upper housing portion. FIG.
FIG. 3 is a cross-sectional view of the switching device taken along section line II-II in FIG.
4 is a partial cross-sectional side view of the switching device according to FIG. 1 provided with an actuator.
5 shows the actuator according to FIG. 4 as seen from below.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Switching apparatus 2 ... Housing 3 ... Connection contact 4 ... Bottom part 5 ... Tubular sleeve 6 ... Base part 7 ... Snap action disk 8 ... Snap action disk 9 ... Pressing piece 10, 11 ... Pressure web 12 ... Compression spring 13 ... Recess 14 ... Pegs 15, 16 ... lugs 17, 18 ... guide groove 19 ... lamp holder 20 ... lamp contact 21 ... latching lug 30 for lamp holder ... actuator 31, 32 ... first plunger element 33 ... longitudinal axis 34 ... tubular sleeve 35 ... rotary knob

Claims (6)

A switching device;
An actuator for operating the switching device;
A command device comprising:
The actuator has at least two first plunger elements that can move separately along the longitudinal direction of the actuator and the switching device ;
The switching device has at least two contactors that are spatially isolated and electrically isolated, each contactor being moved by an assigned first plunger element and an additionally interposed second plunger element. can, wherein a single pressing pieces each second plunger element to each other is fixedly connected allocated to each of the contactors, and projects on the side towards its first plunger element along the direction of movement of the first plunger element Having at least two pressure webs interacting with the first plunger element so that it can tilt when pressure is applied to one of the pressure webs through one of the at least two first plunger elements A configured pressure piece is formed,
The at least two contactors are at least two snap action disks, and the at least two snap action disks are the same or the same so that the disk surface is perpendicular or substantially perpendicular to the moving direction of the first plunger element. A commanding device that is arranged on substantially the same plane and is configured such that when the pressing piece is tilted, switching occurs via one of the two snap action disks and does not affect switching via the other snap action disk . The command device according to claim 1, wherein the at least two first plunger elements are respectively disposed above the at least two snap action disks.   3. A command device according to claim 1 or 2, characterized in that two first plunger elements and two contactors are provided. One contactor is a break contact, and the other contactor is a make contact,
The command device according to claim 3. Each contactor has a switching contact,
The command device according to claim 3. An elastic element is provided between at least one contactor and the pressing piece,
The command device according to any one of claims 1 to 5.

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