JPH0626005Y2 - Control panel window frame structure - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a window frame structure of a control panel for controlling, monitoring and protecting various loads.

BACKGROUND ART FIG. 9 is a perspective view of a control panel A ′ of a conventional example, in which a door (b) is rotatably supported by an opening surface of a box-shaped box (a). On this door (b) are arranged switches (d) for operation and meters (c) for monitoring. Further, in the control panel A ', a control device to which a control signal is input, a controlled device which opens and closes a main contact in response to a signal from the control device, and the like are arranged. When a window hole is formed in the door (b) of the control panel A ′ of the conventional example and a window frame is formed on the periphery of the window hole,
A window frame material such as aluminum extruded material is used on the left, right, upper and lower sides of the window hole. At the corner portion of the window hole, a method is used in which the end portion of the window frame material is cut at 45 degrees and simply abutted. However, this method has a problem in that the abutting portions of the corners cannot be cleaned.

[Object of the Invention] The present invention has been provided in view of the above-mentioned points, in which a corner portion of a window frame is finished neatly, and processing accuracy is not required, and moreover, the frame is fixed to a window hole. It is an object of the present invention to provide a window frame structure for a control panel which simplifies the work and requires a small number of parts.

DISCLOSURE OF THE INVENTION (Structure) The present invention is a control panel in which a window for operating and displaying is formed in a door that closes the opening surface of a box with an open front surface. The control panel is mounted on a pair of left and right sides facing each other. The front part of the door protrudes from the front of the door, and a pair of left and right frames extruded with grooves for inserting the plate material facing each other and the cuts of the pair of left and right frames are covered to hold the space between the pair of left and right frames. It is equipped with a pair of upper and lower frames that are attached to the left and right frames in a state of being inserted from the front side and brought into contact with the front surface of the door. Screw holes are formed on both sides corresponding to the shaft holes, and fixing screws are screwed into the shaft holes of the left and right frames through the screw holes.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a perspective view of the control panel A, and FIG. 2 shows a perspective view of the control panel A with the door opened. An outer door 3 is rotatably pivotally supported on the opening surface of a box 1 having an opening on the front surface to form a box body, and a handle 4 is provided at one end of the outer door 3. A display window 5, which will be described later, is formed at the end portion. The inner door 2 is rotatably supported by a shaft 6 inside the outer door 3. As shown in FIGS. 6 and 3, fixing bases 7a and 7b are attached in the vertical direction on both sides of the back plate 1a of the box 1. The mounting plate 8 is bridged between the fixed bases 7a and 7b, and the substantially L-shaped bent mounting pieces 8a at both ends of the mounting plate 8 are placed on the fixed bases 7a and 7b, respectively. It will be fixed with screws. As shown in FIG. 6, a plurality of mounting plates 8 are mounted vertically.
The mounting pitches of the fixed bases 7a and 7b to which the mounting plate 8 is mounted are set at equal intervals.

FIG. 6 shows an arrangement configuration of the control equipment X and the controlled equipment Y in the box 1, and FIG. 5 shows a block circuit diagram of the control panel A corresponding to the arrangement view of FIG. It is a thing. The control device X is arranged in the right section of the box 1,
The controlled device Y is arranged in the left section. Each component of the control device X and the controlled device Y is fixed by a mounting tool 19 mounted on the mounting plate 8. The control device X is configured by arranging each component in the vertical direction, arranging the input terminal of each component on the right side and the output terminal on the left side. From the top, the control device X includes a power lamp block 9 such as a pilot lamp that indicates whether the power is turned on or off, and an ammeter block 1 such as an ammeter that monitors the current of the main circuit.
0, a control block 11 for receiving a control signal from an operation switch or an external sensor, a display circuit block 12 for displaying an abnormal state of a load, an alarm circuit block 13 for issuing an alarm by a buzzer or the like, a floatless relay A liquid level detection block 14 and the like which receive signals from the liquid level sensor and the like are arranged. The controlled device Y arranged in the left section is provided with a breaker 15 for detecting a normal overcurrent flowing in a main circuit composed of three phases, a remote control breaker 16 capable of handle operation and remote operation, and the like from above. . As shown in FIG. 5, the breaker 15 is composed of a bimetal B ₁ inserted in each circuit and a main contact S ₁ for opening and closing the main circuit. The main contact S ₁ is for handle operation and displacement of the bimetal B ₁ . It is opened and closed by. That is, the bimetal B ₁ detects the overcurrent and forcibly opens the main contact S ₁ . The remote control breaker 16 includes a bimetal B ₂ that detects an overcurrent, a short-circuit sensor C ₂ such as a coil that detects a short-circuit current, a main contact S ₂ that opens and closes a circuit, and a main contact that changes the direction of the current flowing through the exciting coil C _0. It is composed of diodes D ₁ and D _{2 for} controlling the opening and closing of S ₂ , a contact S _{3 and the} like. A current flows from the control block 11 to the exciting coil C ₀ of the remote control breaker 16 via the diode D ₁ or D ₂ and the contact S ₃ , and opens or closes the main contact S ₂ and switches the contact S ₃ . When the contact S ₃ is switched, the current is blocked by the diode D ₂ or D ₁ and no current flows in the exciting coil C ₀ , and the main contact S ₂ is closed or opened. Also, the bimetal B ₂ and the short-circuit sensor C ₂
Is linked with the main contact S _2, it detects the overcurrent forcibly opens releasing the main contact S ₂ in.

Between the control device X and the controlled device Y, an elongated printed circuit board 17 is vertically arranged on the mounting plate 8 via a spacer 18. The printed circuit board 17 is a wiring board for transmitting small signals such as control signals between the components of the control device X and control signals sent from the control device X to the controlled device Y. That is, the control signal from the output terminal of the control device X to the input terminal of the controlled device Y is input via the wiring pattern of the printed board 17. Wiring between the main circuits of the controlled device Y is performed by a main circuit conductor bar 20 vertically arranged on the front side of the printed circuit board 17 on the input side of the controlled device Y as shown in FIG. . Further, the terminals of the ammeter block 10 of the control device X forming the main circuit are also wired by using the conductor bar 21. On the input side of the control device X, the wires connected to the input terminals of each component are bundled into one and wired. The main circuit on the output side of the controlled device Y is also wired by bundling the power supply lines connected to the respective output terminals into one. On the other hand, the inner door 2 has an opening window 22 for exposing the display surface and the operation surface of the control device X and an operation window 23 for exposing the operation portion of the controlled device Y. The inner door 2 is opened / closed by a block 24 provided above and below the operation window 23. Both fixing bases 7a and 7b are movable in the front-rear direction by screwing bolts 25 and nuts 26. By changing the positions of the fixing bases 7a and 7b in the front-rear direction, the display surface and operation surface of the control device X can be changed. , Controlled device Y
The inner door 2 having the opening window 22 and the operation window 23 is positioned so that the operation portion can be easily aligned with the opening surface of the box 1. FIG. 4 shows a construction state of the control panel A, in which the box 1 is embedded in the construction surface Z and the outer door 3 is exposed to the front surface.

Next, the structure of the window frame of the display window 5, which is the gist of the present invention, will be described. The outer door 3 is formed with a rectangular window hole 5a which is long in the vertical direction so as to form the display window 5, and a pair of left and right frames 27a and 27b and a pair of left and right frames 27a and 27b are formed on the left and right sides of the window hole 5a. The upper and lower frames 28a and 28b are mounted respectively. The left frame 27a and the right frame 27b have the same shape and are used symmetrically.

Similarly, the upper frame 28a and the lower frame 28b have the same shape and are used symmetrically in the vertical direction. The left and right frames 27a and 27b (hereinafter referred to as the frame 27) are formed by extrusion molding as shown in FIG. 7, and the material thereof is ABS resin, for example. Therefore, the frame 27 is elongated and has the same cross-sectional shape at any portion. A shaft hole 29 is formed in the rear portion of the frame 27 (downward in the drawing of FIG. 7), and a transparent plate or the like for closing the opening of the display window 5 is formed on one surface of the central portion. A groove 30 into which the plate material is fitted is formed in the longitudinal direction. Further, a step portion 32 is formed in the front side of the frame 27 on the side opposite to the groove 30 in the longitudinal direction,
A window hole of the outer door 3 is provided in the central portion of the step portion 32 in the longitudinal direction.
An engagement groove 31 with which the edge of 5a is engaged is formed. still,
The engaging groove 31 has a U-shaped cross section, but the inner wall surface of the groove 31 may be an inclined surface in the direction of expanding to the opening surface. Further, as shown in FIG. 3, a transparent plate 37 may be put in the groove 30 to provide a dustproof type. When the transparent plate 37 is inserted, the mounting means for the transparent plate 37 can be performed without separately needing it, and the transparent plate 37 can prevent the operating portion from being operated unnecessarily.

For example, the upper and lower frames 28a, 28b made of ABS resin or the like
The frame (hereinafter referred to as the frame 28) is formed in a substantially flat plate shape as shown in FIG. 8, and the front part is integrally formed with a cover part 33 extending laterally and downward (or upward). Positioning step portions 34 for positioning with the frame 27 are formed on both sides of the frame 28 so as to be recessed. The shape of the positioning step portion 34 is substantially the same as the cross section of the frame 27, and the frame 27 is provided at the rear of the positioning step portion 34.
A screw hole 35 that overlaps with the shaft hole 29 is drilled.

Then, the engaging grooves 31 of the left and right frames 27a, 27b are engaged and attached to the left and right edge portions of the window hole 5a of the outer door 3, and the upper and lower frames 28a, 28b are fixed to the upper and lower frames 28a, 28b. Positioning step 34
To the left and right frames 27a, 27b, and from the front of the outer door 3 to the window hole 5
The cover 33 is inserted into the upper and lower parts of a until the rear surface of the cover portion 33 comes into contact with the front surface of the outer door 3. Therefore, the upper frame 28a is inserted over the left and right frames 27a, 27b, the lower frame 28b is inserted under the left and right frames 27a, 27b, and the screws 36, which are fixing means, are screwed into the screw holes 35 of the upper and lower frames 28a, 28b, respectively. The window frame is attached to the outer door 3 by being screwed into the shaft holes 29 of the left and right frames 27a and 27b located on the positioning step portion 24 via the interposition. At this time, the ends of the upper and lower cuts of the left and right frames 27a and 27b are located on the front surface of the outer door 3, but since these cuts are covered by the cover 33 of the upper and lower frames 28a and 28b, the appearance is finished neatly. It is a thing. 3 and 4 show a state in which the window frame is mounted. Even if the transparent plate 37 is not attached to the display window 5, the rear portions of the left and right frames 27a and 27b and the upper and lower frames 28a and 28b, which are window frames, are close to the front surface of the inner door 2 so that dust and dust can be prevented. The mixture inside can be prevented considerably.

[Effects of the Invention] As described above, the present invention is a control panel in which a window for operation display is formed in a door that closes an opening surface of a box with an open front surface. The control panel has a pair of left and right sides facing each other. When mounted, the front part protrudes from the front of the door, and a pair of left and right frames that are formed by extrusion with the grooves for inserting the plate material facing each other and the cuts of the pair of left and right frames are covered to hold the space between the pair of left and right frames. It is equipped with a pair of upper and lower frames that are attached to the left and right frames in a state of being inserted from the front and brought into contact with the front of the door, and shaft holes into which screws are screwed are formed at the upper and lower ends of the left and right frames. Since screw holes are drilled on both sides of the shaft hole corresponding to the shaft holes, and fixing screws are screwed into the shaft holes of the left and right frames through the screw holes, the left and right frames are attached to the side of the window hole. When mounted, the left and right frames are extruded The upper and lower frames can cover the end faces of the cuts cut into a predetermined length without impairing the aesthetics.In addition, the end faces of the cuts of the left and right frames can be covered to injure your hands. Also, by forming a groove for inserting a plate material in the left and right frames, for example, if a transparent plate is inserted in the groove, a dustproof effect is achieved, and further, the left and right frames form a groove. The right and left frames can be used by cutting an extruded long piece as appropriate, so even if the size of the window hole changes or the lengths of the left and right frames differ from each other. In addition, the window frame structure can be easily assembled even if the cut edge is messy, and a pair of left and right frames are attached to the window hole of the door, and then the upper and lower frames are inserted from the front side of the door. For fixing The from through the screw holes of the upper and lower frames only screwed in the axial hole of the vertical frame, right and left,
The work of attaching the upper and lower frames to the window holes is very simple, and in order to attach the left and right frames and the upper and lower frames to the window holes, there is no need to make processing for attachment on the door side, just by opening the window holes. Therefore, it is very easy to process the window hole, and the left and right frames or the upper and lower frames can be attached to the door without modifying the door, so the door can be deformed or damaged. The effect is that there is no such thing. Further, since the number of parts may be three kinds, that is, the left and right frames, the upper and lower frames, and the fixing screws, it is possible to easily manage the parts.

[Brief description of drawings]

FIG. 1 is a perspective view of a control panel according to an embodiment of the present invention, FIG. 2 is a perspective view showing a state in which an outer door of the control panel is opened, and FIG. 3 is a cross-sectional view of the control panel of the same. Fig. 4 is a sectional view showing a construction state of the above, Fig. 5 is a block circuit diagram of the control panel of the same, Fig. 6 is a layout configuration diagram of the control device and controlled devices of the same, Fig. 7 (a), ( b) is a side and plan view of the left and right frames, 8th
(A), (b) and (c) are a plan view, a front view and a side view of the upper and lower frames, and FIG. 9 is a perspective view of a conventional example. 1 is a box, 5 is a display window, 27a and 27b are left and right frames, 2
8a and 28b are upper and lower frames, and 30 is a groove.

Claims (1)

[Scope of utility model registration request] 1. A control panel in which an operation display window hole is formed in a door that closes an opening surface of a box whose front surface is open, and when installed on a pair of left and right sides facing each other, the front surface of the door is not covered. A pair of left and right frames that are formed by extrusion with the projecting parts facing each other and grooves for inserting the plate material facing each other, and the cuts of the pair of left and right frames are covered and inserted from the front so as to maintain the space between the pair of left and right frames. A pair of upper and lower frames are attached to the left and right frames in a state of being in contact with the front surface, and shaft holes into which screws are screwed are formed at the upper and lower ends of the left and right frames,
A window frame structure for a control panel characterized in that screw holes are formed on both sides of the upper and lower frames corresponding to the shaft holes, and fixing screws are screwed into the shaft holes of the left and right frames through the screw holes. .