CONTROL AND SIGNALLING DEVICE AND ADAPTER FOR A CONTROL AND SIGNALLING DEVICE

Abstract

The invention describes a control and signaling device which comprises the following: a cylindrical main body with two open ends, an operating element which is designed for insertion into one of the open ends of the main body and has a switching part that is movable relative to the main body, and a multipartite insert element which is designed for insertion into the main body for bridging at least one portion of a switching path from the switching part to a contact element arranged at the other of the open ends and has an elastic element which elastically supports a portion , provided for operating the contact element, of the insert element in such a way that a pressure force of the insert element onto the contact element is limited to a prespecified force range.

Claims

1-10. (canceled)

11. A control and signaling device comprising a cylindrical main body with two open ends, an operating element which is designed for insertion into one of the open ends of the main body and has a switching part that is movable relative to the main body, and a multipartite insert element which is designed for insertion into the main body for bridging at least one portion of a switching path from the switching part to a contact element arranged at the other of the open ends and has an elastic element which elastically supports a portion , provided for operating the contact element, of the insert element in such a way that a pressure force of the portion on the contact element is limited to a prespecified force range, wherein the switching part is axially movable relative to the main body, and wherein the insert element has a pin-shaped central part, which forms the portion provided for operating the contact element, and a bracket which is arranged coaxially with the central part and into which the elastic element can be inserted so that it is arranged coaxially with the central part and can exert a force on the central part, wherein the bracket is fixed in the switching part, and the central part is mounted in the bracket in an axially movable manner and is pressed against a stop in the direction of the contact element by the elastic element arranged coaxially between the bracket and the central part.

12. The control and signaling device according to claim 11, wherein the bracket has a base and a plurality of finger-shaped retaining rods extending from the base approximately parallel to the central part, wherein the base has an opening approximately in its center for the central part to pass through, and the edge region of the opening in the base forms the stop for a radial projection of the central part.

13. The control and signaling device according to claim 11, wherein the switching path is approximately 5 mm and, in the state where it is pressed up to the stop, the central part projects from the bracket far enough that the switching path is shortened to approximately 1 mm.

14. The control and signaling device according to claim 11, wherein the elastic element is a helical compression spring designed in such a way that its pressure force in the compressed state is approximately in the prespecified force range.

15. A control and signaling device comprising a cylindrical main body with two open ends, an operating element which is designed for insertion into one of the open ends of the main body and has a switching part that is movable relative to the main body, and a multipartite insert element, which is designed for insertion into the main body for bridging at least one portion of a switching path from the switching part to a contact element arranged on the other of the open ends and has an elastic element, which elastically supports a portion, provided for operating the contact element, of the insert element in such a way that a pressure force of the portion on the contact element is limited to a prespecified force range, wherein the switching part is rotationally movable relative to the main body, and wherein the insert element has a central part, which is axially movable relative to the main body by a rotation of the switching part in the main body, and a pressure part, which forms the portion provided for operating the contact element and is mechanically coupled to the central part in such a way that an axial movement of the central part relative to the main body causes a corresponding axial movement of the pressure part, and wherein the pressure part is pressed against a stop in the direction of the contact element by the elastic element fixed to the central part.

16. The control and signaling device according to claim 15, wherein the switching part has a sliding surface with a predetermined angle in relation to the axis of rotation of the switching part and the central part has a corresponding mating sliding surface, as a result of which the sliding surface slides on the mating sliding surface during a rotation of the switching part and thereby causes the axial movement of the central part relative to the main body.

17. The control and signaling device according to claim 15, wherein the switching path is approximately 5 mm and, in the state where it is pressed up to the stop, the pressure part projects beyond the other of the open ends of the main body far enough that the switching path is shortened to approximately 1 mm.

18. The control and signaling device according to claim 15, wherein the elastic element is a leaf spring designed in such a way that its pressure force in the bent state is approximately in the prespecified force range.

19. An adapter for a control and signaling device, in particular according to claim 11, which has a cylindrical main body with two open ends and an operating element, which is designed for insertion into one of the open ends of the main body and has a switching part, which is axially movable relative to the main body, wherein the adapter comprises the following: a multipartite insert element which is designed for insertion into the main body for bridging at least one portion of a switching path from the switching part to a contact element arranged at the other of the open ends and has an elastic element which elastically supports a portion, provided for operating the contact element, of the insert element in such a way that a pressure force of the insert element on the contact element is limited to a prespecified force range, wherein the insert element has a pin-shaped central part, which forms the portion provided for operating the contact element, and a bracket which is arranged coaxially with the central part and into which the elastic element can be inserted so that it is arranged coaxially with the central part and can exert a force on the central part, wherein the bracket can be fixed in the switching part, and the central part is mounted in the bracket in an axially movable manner and is pressed against a stop in the direction of the contact element by the elastic element arranged coaxially between the bracket and the central part.

20. An adapter for a control and signaling device, in particular according claim 15, which has a cylindrical main body with two open ends and an operating element, which is designed for insertion into one of the open ends of the main body and has a switching part, which is rotationally movable relative to the main body, wherein the adapter comprises the following: a multipartite insert element which is designed for insertion into the main body for bridging at least one portion of a switching path from the switching part to a contact element arranged at the other of the open ends and has an elastic element which elastically supports a portion, provided for operating the contact element, of the insert element in such a way that a pressure force of the insert element on the contact element is limited to a prespecified force range, wherein the insert element has a central part, which is axially movable relative to the main body by a rotation of the switching part in the main body, and a pressure part, which forms the portion provided for operating the contact element and is mechanically coupled to the central part in such a way that an axial movement of the central part relative to the main body causes a corresponding axial movement of the pressure part, and wherein the pressure part is pressed against a stop in the direction of the contact element by the elastic element fixed to the central part.

Description

[0021] Further features result from the following description in connection with the exemplary embodiments shown in the drawings.

[0022] In the drawings:

[0023] FIG. 1 shows a control and signaling device according to the first embodiment in different states;

[0024] FIG. 2 shows an embodiment of an adapter for a control and signaling device; and

[0025] FIG. 3 shows a control and signaling device according to the second embodiment in different states.

[0026] In the following description, identical, functionally identical and functionally related elements can be provided with the same reference signs. Absolute values are only given as examples in the following and are not to be understood as limiting.

[0027] FIG. 1 shows a control and signaling device 10, configured as a push button, of the RMQ-Titan® series, which is arranged above a circuit board 30 with a microswitch 18, mounted thereon, as a contact element. The microswitch 18 is surrounded by LEDs (light-emitting diodes) 19 arranged around it on the circuit board 30. If elements of the control and signaling device 10 are transparent to light radiation, the LEDs 19 may signal, for example, things responsible for switching of the control and signaling device 10, via the light radiation emerging in particular from the upper side.

[0028] The control and signaling device 10 has a cylindrical main body 12 with an external thread for screwing into a bracket 32 for control and signaling devices. An operating element 14 is inserted at the upper free end of the main body 12. The operating element 14 has a switching part 16 which is axially movable relative to and in the main body 12, as indicated by the double arrow. On its upper side, the switching part 16 has a touch surface for pushing the switching part 16 into the main body 12. The switching part 16 has a cylindrical central section, the diameter of which is smaller than the inner diameter of the main body 12 so that it is axially movable in the main body 12. Axially movable means a longitudinal movement capability along the cylinder axis of the main body 12. By a fixing ring 13, which is fastened to the upper free end of the main body, for example, by means of screws, the switching part 16 is held in the main body 12 in such a way that it cannot fall out or jump out of the main body 12 at the upper end. In the middle drawing of FIG. 1, the switching part 16 is shown in the basic position, i.e., when the microswitch 18 is not activated, while in the left drawing of FIG. 1, the switching part 16 is shown in the pressed-in state in which the microswitch 18 is activated.

[0029] Due to its small dimensions, the microswitch 18 is arranged at a distance from the above-described components of the control and signaling device 10 in such a way that, without additional measures, activation is not possible since the switching path to be bridged for activation of the microswitch 18 is too large and, in addition, the pressure force required for the microswitch 18 cannot be satisfied in some circumstances, i.e., the operating pressure acting on the switching part 16 is not in the force range prespecified for the microswitch 18. In order to bridge the switching path 24 to the microswitch 18 at least in a portion 240 and to limit the pressure force on the microswitch 18 to a force range which is prespecified in particular for the activation of the microswitch 18, a multipartite insert element is provided for insertion into the main body 12.

[0030] The multipartite insert element has a bracket 20, which is inserted in the lower cylindrical section of the switching part 16 and is fixed therein, i.e., is moved with the switching part 16, as can be seen in the left and middle drawings in FIG. 1. For example, the bracket 20 may be fastened, or screwed or glued, in a clamping manner in the switching part 16. A pin-shaped central part 22 is arranged in an axially movable manner within the bracket 20, specifically such that the bracket 20 is arranged coaxially with the central part 22. The elastic element 26 is arranged in particular in the form of a helical compression spring between the bracket 20 and the central part 22. In order to prevent the central part 22 from falling out of the bracket 20, a stop 28 is provided at the lower end of the bracket 20 toward the contact element 28. The elastic element 26 or the helical compression spring is clamped between a projection of the central part 22 and the upper closed end of the cylindrical section of the switching part 16 and thereby elastically supports the central part 22 in such a way that, in the depressed state of the switching part 16, the pressure force acting on the microswitch 18 via the central part 22 is limited to a force range which corresponds in particular to the force range specified for the microswitch 18 or is comprised thereby.

[0031] As can be seen in the middle drawing of FIG. 1, the lower portion of the central part 22 projects far enough from the switching part 16 that a portion 240 of the switching path 24 can be bridged thereby. Thus, the control and signaling device 10 can also be used with microswitches 18 having a relatively low overall height. In the constellation shown in the right drawing of FIG. 1, the control and signaling device 10 is arranged at a greater distance than in the constellation of the microswitch 18 shown in the left drawing. In this case, the lower portion of the central part 22 projects further from the cylindrical lower section of the switching part 16 in the pressed-in state of the switching part 16. The helical compression spring 26 ensures that the pressure force acting on the microswitch 18 through the central part 22 is within the prespecified force range. As the left and right drawing of FIG. 1 show, the control and signaling device 10 can be flexibly used in different constellations, that is to say, for example, at different distances from contact elements and also with contact elements having different overall heights.

[0032] FIG. 2 shows an embodiment of an insert element with the bracket 20, which has a base 200 in the form of a cylindrical section with an opening in its center through which the pin-shaped central part 22 is guided so that both ends of the central part 22 project from the base 200. Starting from the base 200, finger-shaped retaining rods 202 extend approximately parallel to the central part 22 in order to mount the helical compression spring 26 coaxially between the central part 22 and the retaining rods 202 and to guide the base 200 in the switching part 16. As shown at the top left in the drawing, the bracket 20 may be mounted with the central part 22 and the helical compression spring 26 in an insert part 21 which may be designed for insertion into the main body 12 of the control and signaling device 10. The insert part 21 can be mounted in the main body 12 in an axially movable manner and can, for example, be moved in the direction of the microswitch 18 by pressing the switching part 16 into the main body 12.

[0033] FIG. 3 shows a control and signaling device 10′, configured as a rotary switch, of the RMQ-Titan® series, which is arranged above a circuit board with a microswitch 18′, mounted thereon, as a contact element. The microswitch 18′ may be surrounded by LEDs arranged around it on the circuit board, similarly to that shown in FIG. 1. If elements of the control and signaling device 10′ are transparent to light radiation, the LEDs may signal, for example, things responsible for switching of the control and signaling device 10′, via the light radiation emerging in particular from the upper side.

[0034] The control and signaling device 10′ has a cylindrical main body 12′ with an external thread for screwing into a bracket for control and signaling devices. At the upper free end of the main body 12′, an operating element 14′ may be inserted, as shown in the right drawing in FIG. 3. The operating element 14′ has a switching part 16′ that is rotationally movable relative to and in the main body 12′, as indicated by the double arrow. At its upper side, the switching part 16′ has a gripping surface for rotating the switching part 16′ in the main body 12′. The switching part 16′ has a cylindrical central section the diameter of which is smaller than the inner diameter of the main body 12′ so that it is rotationally movable in the main body 12′. Rotationally movable means a rotation capability about the cylinder axis of the main body 12′. By a fixing ring 13′, which is fastened to the upper free end of the main body, for example, by means of screws, the switching part 16′ is held in the main body 12′ in such a way that it cannot fall out or jump out of the main body 12′ at the upper end. In the left and middle drawings of FIG. 3, the control and signaling device 10′ is shown without the operating element 14′, while the control and signaling device 10′ is shown with the inserted operating element 14′ in the right drawing of FIG. 3.

[0035] Due to its small dimensions, the microswitch 18′ is arranged at a distance from the above-described components of the control and signaling device 10′ that an activation is not possible without additional measures since the switching path to be bridged for activation of the microswitch 18′ is too large and, in addition, the pressure force required for the microswitch 18′ cannot be satisfied in some circumstances, i.e., the operating pressure acting on the switching part 16′ is not within the force range prespecified for the microswitch 18′. In order to bridge the switching path to the microswitch 18′ at least in a portion and to limit the pressure force on the microswitch 18′ to a force range which is prespecified in particular for the activation of the microswitch 18′, a multipartite insert element is provided for insertion into the main body 12′.

[0036] The multipartite insert element has a central part 20′ which is axially movable relative to the main body 12′ by a rotation of the switching part 16′ in the main body 12′. The central part 20′ also has a pressure part 22′ which forms a portion provided for operating the microswitch 18′ and is mechanically coupled to the central part 20′ in such a way that an axial movement of the central part 20′ relative to the main body 12′ causes a corresponding axial movement of the pressure part 22′. In this case, the pressure part 22′ is pressed against a stop 28′ in the direction of the microswitch 18′ by an elastic element 26′ in the form of a leaf spring fixed to the central part 20′. A rotation of the switching part 16′ is converted by the mechanism described below into the axial movement of the central part 20′ and pressure part 22′: For this purpose, the switching part 16′ has a sliding surface 160′ which is arranged at a first predetermined angle in relation to the axis of rotation of the switching part 16′. Likewise, the central part 20′ has a corresponding mating sliding surface 200′ which is arranged at a second predetermined angle in relation to the axis of rotation of the switching part 16′, which angle is approximately equal to the first angle, for example approximately 45°. When the switching part 16′ rotates, the sliding surface 160′ of the switching part 16′ slides on the mating sliding surface 200′ of the central part 20′. Since the rotating switching part 16′ is not axially movable by the fixing ring 13′, the central part 20′ is moved axially downward, i.e., in the direction of the contact element 18′ relative to the main body 12′, namely in the main body 12′, by the sliding surfaces 160′ and 200′ sliding on one another. In this way, the pressure part 22′ is also moved downward toward the microswitch 18′ so that when the central part 20′ is moved axially downward to the maximum amount, the pressure part 22′ presses on the microswitch 18′ such that it can be operated. As a result, the pressure part 22′ is pressed against the leaf spring 26′, which is bent upward. The pressure force of the leaf spring 26′ is dimensioned in such a way that it is approximately in a force range which is prespecified for the microswitch 18′.

[0037] As can be seen in FIG. 3, the lower portion of the central part of the pressure part 26′ projects far enough from the switching part main body 12′ that a portion of the switching path can be bridged thereby. Thus, the control and signaling device 10′ may also be used with microswitches 18′ having a relatively low overall height. Depending on the arrangement of the sliding surfaces 160′, 200′, i.e., depending on the angle selection, it is possible to adjust how far the pressure part 26′ can be moved out of the main body 12′. For example, when an angle of less than 45° of the sliding surfaces 160′, 200′ in relation to the axis of the main body 12′ is selected, a larger switching path can be bridged than when an angle greater than 45° is selected. The control and signaling device 10′ may thus be used flexibly in different constellations, i.e., for example, at different distances from contact elements and also with contact elements having different overall heights.