KR200234990Y1 - Structure of push button for elevator - Google Patents

Abstract

The present invention relates to a push button for an elevator, and to provide a structure of an elevator push button that can be assembled a push-button in front of the operating panel plate. The push button structure includes a PCB equipped with a tact switch and an LED for turning on / off power, a case in which the PCB is assembled and at least two ribs protrude upward along an inner circumferential surface, and corners at both ends of the case. A fastening hook formed at a part and configured to assemble the push button from the front of the operating panel plate, a knob formed at the bottom of the case and a pressing protrusion for switching the tact switch to the inside of the case; Springs are fitted to the ribs and always return the knob to its original position, and the dial is coupled to the upper surface of the knob to indicate the number of floors of the elevator.

Description

Structure of push button for elevator. {STRUCTURE OF PUSH BUTTON FOR ELEVATOR}

The present invention relates to a push button for an elevator, and more particularly to a structure of an push button for an elevator that can implement a simplified and slim structure.

In general, an elevator push button is a printed circuit board (hereinafter referred to as 'PCB') having a plurality of screw holes at the same time that a tact switch and an LED to which an on / off operation of a power is performed are mounted, and a plate positioned above the tact switch A frame including a slider having a plurality of push pins pressed against a spring upright is formed, a dial positioned on the slider to display the number of layers, and a guide body coupled to the frame with the dial interposed therebetween.

Conventional technologies having the above configuration include Korean Utility Model Publication No. 98-34160 (name: elevator switch) and Korean Utility Model Publication No. 98-54211 (name: elevator switch).

It is clear that these prior application utility models are useful in their own way compared to the conventional elevator push buttons, which failed to implement the thinning of the push button structure.

However, the above-mentioned open utility models use a means for switching the tact switch by using a separate spring with four springs formed at the bottom of the leaf spring and the bottom surface, thereby not only making the switch structure slimmer (thinning), but also using it for a long time. Due to the deformation of the spring, the disadvantage of poor contact state is expected.

On the other hand, the open utility models having the configuration as described above, when the elevator switch is to be installed on the plate of the operating panel, as shown in Figure 8 first by using a dry welding machine on the back surface (200b) of the plate of the operating panel, a plurality of bolts ( 210 is welded, and then the front portion of the push-button 300 is inserted into the hole 202 of the face plate on the rear surface 200b side of the control panel face plate. Thereafter, the nut 302 is fastened to the bolt 210 protruding through the holes 300a formed at both ends of the push-button 300 to install the push-button 300 on the rear surface 200b of the operating panel plate. It was. In addition, such installation work is described in detail in Korean Utility Model Publication No. 96-22482 (Push Button Switch for Elevator) and Publication No. 98-17982 (Elevator Button Structure).

However, such a conventional push button installation work for an elevator requires a separate process such as a welding work and a fastening work, which increases work time and increases the cost and productivity of the product. And additional work is required to weld the bolts to the back of the operating panel plate, and if a slight error occurs during welding, there is a disadvantage that the push-button can not be installed.

On the other hand, Korean Utility Model Publication No. 95-18623 (hereinafter referred to as `` prior art '') does not assemble the push-button by screw work on the plate of the operating panel, but instead of assembling it before and after the plate. The push button has been published.

However, such a prior art is expected to have a disadvantage that the push button is not only complicated in structure but also has a large size and a limitation in opening and closing the elevator door. In addition, the prior art not only increases the assembly time by assembling push-buttons in front and rear of the control panel plate, but also causes a reduction in productivity and a cumbersome work because two workers must assemble and disassemble.

Accordingly, an object of the present invention for solving the above problems is to provide a structure of an elevator push button that can be assembled a push-button in the front of the operating panel.

Another object of the present invention is to provide a structure of an elevator push button that can implement a simplified and slim structure.

Another object of the present invention is to provide a structure of an elevator push button that can be easily assembled regardless of the thickness of the operating panel plate.

Still another object of the present invention is to provide an elevator push button that is easily removable from the operating panel plate.

The present invention according to the first check for achieving the above object, a PCB with a tact switch and LED to turn on / off, and the PCB is assembled and at least two ribs protrude upward along the inner circumferential surface A case, a fixing hook for assembling the push button from the front of the operating panel plate, and a pressing protrusion to be assembled inside the case and to switch the tact switch. An elevator push button comprising a knob formed on a bottom surface, springs fitted into each rib of the case and always returning the knob to its original position, and a dial that is coupled to an upper surface of the knob to display the number of floors of the elevator. It was.

1 is an exploded perspective view showing the configuration of the push button for the elevator having an ultra-thin front insertion method according to an embodiment of the present invention.

2 is a cross-sectional view showing the assembled state of FIG.

Figure 3 is a cross-sectional view showing the operating state of the push button for an elevator of the present invention.

Figure 4 is a partial perspective view showing the structure of the fixing hook for fixing the push-button of the present invention to the control panel plate.

Figure 5 is a partial perspective view showing the shape of the fixing hook having a leaf spring structure at one end in the push button for an elevator of the present invention.

Figure 6 is a partial perspective view showing the shape of the fixing hook having a leaf spring structure at both ends in the push button for an elevator of the present invention.

Figure 7a is a schematic diagram showing the process of assembling the push-button of the present invention from the front of the control panel plate.

FIG. 7B is a rear view of FIG. 7A.

Figure 8 is a schematic diagram showing a process of assembling the push button for elevators according to the prior art from the back of the operating panel plate.

<Description of the symbols for the main parts of the drawings>

12: Knob 16: Hook

20: Pushing protrusion 22: Case

30: spring 50, 60, 70: fixing hook

52, 62, 72: engaging jaw 64: first tension portion

74: second tension unit 76: third tension unit

100; Push-button 200a: faceplate front

200b: back plate

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used for the same components, even if displayed on different drawings. In the following description, it should be noted that only parts necessary for understanding the operation according to the present invention are described, and descriptions of other parts will be omitted so as not to obscure the subject matter of the present invention.

1 illustrates a structure of an push button for an elevator having an ultra-thin frontal insertion method according to an embodiment of the present invention. In the figure, the push-button 100 of the present invention consists of two parts, which is fixed to the hook hook 50 is formed integrally to assemble the push-button 100 in the front surface (200a) of the operating panel plate It is composed of a case 22 and a knob 12 coupled to the inside of the case 22 to switch the tact switch 40.

That is, as shown in FIGS. 1 and 2, various elements (not shown) are mounted on the bottom of the PCB 38, and a tact switch 40 having a contact portion 40a is mounted on an upper center portion thereof. . Above the tact switch 40, a plate 32 having a hole 36 is installed in the center, and a small LED 34 is attached to each corner of the upper portion of the plate 32. Here, the contact portion 40a of the tact switch 40 protrudes to the outside through the hole 36 of the plate 32.

The PCB 38 is assembled to the bottom surface of the case 22 by a screw, and an opening portion 24 is formed at the center portion to protrude the contact portion 40a of the plate 32 and the tact switch 40. On the circumferential surface of the opening 24, ribs 26 are formed to extend upward at each corner of the inner surface of the case 22, and each of the ribs 26 has a spring having a predetermined tension force. 30) is fitted. This rib 26 not only prevents the flow of the spring 30 but also eliminates the pinch of the knob 12 to prevent the malfunction in advance.

In addition, a rectangular hole 28 is formed in both side surfaces of the case 22 (refer to the long horizontal surface in FIG. 1), and the hook 16 of the knob 12 described later is formed in the hole 28. ) Are combined. Here, the holes 28 and the hooks 16 are formed in at least two or more, and preferably four holes 28 are formed in each of two sides of the case 22.

The front and rear side edges of the case 22 are formed with a fixing hook 50, which is a main component of the present invention, which allows the push-button 100 to be assembled at the front surface 200a of the operator panel plate. In addition, the push-button 100 is easily detachable regardless of the thickness of the plate. The shape and structure of this fixing hook 50 will be readily understood by FIGS. 4 to 6.

Figure 4 is a partial perspective view showing the shape of the fixing hook for fixing the push button for elevator according to an embodiment of the present invention, the fixing hook 50 to have a predetermined tension force It is formed to be bent in a '<' shape and both ends thereof are connected to the upper and lower ends of the case 22, and preferably injection molded integrally with the case 22. At this time, a predetermined space portion 50a is formed between the case 22 and the fixing hook 50, which prevents the push-button 100 from being damaged when the push-button 100 is assembled at the front surface 200a of the operator panel plate. . In addition, a plurality of locking jaws 52 are regularly formed on the upper surface of the fixing hook 50 up and down. Preferably, the locking jaws 52 may correspond to the thickness of the operating panel plate 200. So that it is formed into a multilevel type. That is, when the locking projections 52 are formed in a multi-stage manner, the locking jaw 52 may be easily coupled and disassembled regardless of the thickness of the driving plate plate 200, for example, 1.5 mm, 2 mm, or 3 mm.

Figure 5 is a view showing a fixing hook formed in a leaf spring structure of one side end in the push button according to an embodiment of the present invention, the fixing hook 60 is bent to have a predetermined tension force and both sides The stage is connected to the upper and lower ends of the case 22. At this time, a predetermined space portion 60a is formed between the case 22 and the fixing hook 60. Here, the first tension portion 64 of the leaf spring type is bent in a '∠' shape at one side end of the fixing hook 60, preferably at a portion connected to the bottom surface of the case 22. , This is to have a higher tension than the tension of the fixing hook 50 shown in FIG. That is, even when the push-button 100 is detached several times, the locking jaws 62 of the fixing hook 60 are not damaged and always maintain their original state. In addition, the upper surface of the fixing hook 60 is formed in the multi-step locking jaw 62 to correspond to the thickness of the operating panel plate 200, which is easy regardless of the thickness of the operating panel plate 200 This is to detach the push-button 100 to.

6 is a view showing a fixing hook formed on both sides of the push button in the leaf spring structure according to an embodiment of the present invention, the fixing hook 70 is bent to have a predetermined tension force and both sides The stage is connected to the upper and lower ends of the case 22. At this time, a predetermined space portion 70a is formed between the case 22 and the fixing hook 70. Here, the second tension portion 74 and the third tension portion 76 of the leaf spring type are formed at both side ends of the fixing hook 70, and preferably connected to the upper and lower surfaces of the case 22. Is bent in a '∠' shape, which is to have a higher tension than the tension of the fixing hooks 50 and 60 shown in FIGS. That is, even when the push-button 100 is detached several times, the locking jaws 72 of the fixing hook 70 are not damaged and always maintain their original state. In addition, the locking jaws 72 are formed on the upper surface of the fixing hook 70 in a multi-stage manner so as to correspond to the thickness of the driving plate plate 200.

Meanwhile, as shown in FIGS. 1 and 2, a knob 12 made of a translucent material is assembled inside the case 22, and both ends thereof have a hook 16 coupled to the hole 28 of the case 22. ) Is integrally formed. That is, like the hole 28 of the case 22, the knob 12 is formed with a total of four hooks 16, two on one side.

In addition, a seating recess 14 having a predetermined depth is formed at an upper end of the knob 12, and the dial 10, which displays the number of floors of an elevator, is fixedly coupled to the seating recess 14. In addition, fixing protrusions 18 are formed at each corner portion of the bottom surface of the knob 12, and preferably, the fixing protrusions 18 are formed to correspond to the knobs 26 formed on the case 22. This structure is to prevent the detachment of the spring 30 fitted to the knob 26.

A pressing projection 20 formed in a hemispherical shape is formed at the center of the bottom surface of the knob 12, and the pressing projection 20 presses the contact portion 40a of the tact switch 40 to tact. Switch 40 is switched.

When the push button for an elevator of the present invention having such a configuration is pressed, preferably, when the knob 12 is pushed, the knob 12 moves downward, as shown in FIG. 30) is compressed. The pressing protrusion 20 of the knob 12 then presses the contact portion 40a of the tact switch 40, whereby the tact switch 40 is switched on and at the same time the LED 34 is turned on. . At this time, the light emitted from the LED 34 is emitted to the outside through the edge of the knob 20 and the dial 10, thereby allowing the user to identify it from the outside. Here, when the force applied to the knob 12 is removed, the knob 12 is returned to its original position by the elastic force of the spring 30.

Hereinafter, an installation process of the elevator push button of the present invention having the function and configuration as described above will be described in detail with reference to FIGS. 7A to 7B.

First, as shown in FIG. 7A, a plurality of holes 202 are regularly formed in the front surface 200a of the operating panel plate, and the holes 202 include push-buttons indicating the number of floors and the closed and open state of the door. 100) is assembled.

Subsequently, when the push-button 100 is to be installed on the plate 200, first, the case 22 having the bottom of the push-button 100, preferably the PCB 38, is installed on the front surface of the driving plate plate ( Insert it as it is in 200a). The push-button 100 is then simply installed on the operator panel plate 200. That is, when the push-button 100 is pushed in, the fixing hook 50 is moved toward the rear surface 200b of the top plate while being compressed with a predetermined tension force. Subsequently, the fixing hook 50 is returned to its original state by a restoring force, and is fixedly installed to the operating panel plate 200 by the locking jaw 52.

On the contrary, when the push button 100 is to be detached from the control panel plate 200, the push button 100 may be pulled forward by simply pressing the fixing hook 50 with a drive or an awl. .

As described above, the present invention can reduce the material cost and assembly cost by realizing the simplification and ultra-slim structure, and also because the entire push button can be assembled directly from the front of the elevator without any additional process, labor costs It has the advantage of reducing the productivity and improving the productivity. And by minimizing the overall thickness of the push button of the present invention it is possible to prevent the interference between the push button and the elevator door.

In particular, the present invention has the advantage of being easy to attach and detach from the operating panel plate by taking a simple lever method, and easy maintenance, and also to assemble the push button firmly regardless of the thickness of the operating panel plate. In addition, by supporting the knob for switching the tact switch with four ribs and springs, there is an increased effect of eliminating the pinch of the knob and preventing malfunction.

Claims (6)

In the structure of the push button assembled to the operating panel plate of the elevator, A printed circuit board provided with a tact switch having a contact portion for turning on / off a power supply; A plate installed at an upper side of the tact switch and having a hole at a central portion thereof to protrude the contact portion, and an LED at each corner of the upper surface; A case in which the printed circuit board is assembled and has a quadrangular hole at each corner of the outer surface and at least two ribs protrude upward along the inner surface circumferential surface; Fastening hooks formed at corners of both sides of the case and for assembling the push button from the front of the operating panel plate; A knob assembled to the inside of the case and having a pressing protrusion for switching the tact switch; Springs fitted into each rib of the case and returning the knob to its original position at all times; Coupled to the upper surface of the knob, the push button structure for elevator characterized in that it comprises a dial that displays the number of floors of the elevator. According to claim 1, wherein the ribs are formed in each corner portion of the inner surface of the case to prevent the pinch of the knob, the bottom of the knob is formed with fixing projections for preventing the separation of the spring fitted to the ribs Elevator push button structure, characterized in that. The push button for elevator of claim 1, wherein the fixing hook is bent to have a predetermined tension force, and both side ends of the fixing hook are integrally connected to the upper and lower ends of the case. Structure. The push button structure of claim 3, wherein the fixing hook is formed in a leaf spring structure having at least one end thereof with a predetermined elastic deformation so that the push button is easily detached from the operating panel plate. 4. The structure of an elevator push button according to claim 1, wherein a plurality of locking jaws are formed stepwise on the surface of the fixing hook such that the push button is attached or detached regardless of the thickness of the operating panel plate. . The push button structure of claim 1, wherein the pushing protrusion is formed to protrude in a hemispherical shape to press the contact portion of the tact switch.