JP6630127B2 - How to install panel instruments - Google Patents

Description

  The present invention relates to a mounting method of a panel instrument used by being attached to a panel and a mounting structure of the panel instrument.

  2. Description of the Related Art Conventionally, as a control device that controls the operation of an output device by taking in data from an input device, a control device that controls temperature, humidity, pressure, flow rate, and the like in a process has been used.

  This control device includes an operation unit for setting predetermined parameters such as temperature, humidity, pressure, and flow rate, and a display unit for displaying a state of an output device to be controlled, and a surface provided with the operation unit and the display unit. It is used by being attached to a panel such as a control panel as a front surface (for example, see Patent Documents 1 to 4).

  When the control device is mounted on a panel, the entire control device may be mounted as a panel instrument, or a front panel provided with an operation section and a display section may be separated from a main body to form a thin panel instrument. In some cases, the instrument is mounted on a panel and electrically connected to the main unit with a lead wire or connector.

  FIG. 12 shows a mounting structure when the entire control device is a panel instrument. 12A is a front view, FIG. 12B is a side view, and FIG. 12C is a rear view. FIG. 13 is an exploded perspective view of the mounting structure of the panel instrument. 12 and 13, reference numeral 100 denotes a panel instrument, 101 denotes a panel, and 102 denotes a mounting device.

  The panel instrument 100 includes a display / operation unit (front surface) 100a and a main unit 100b, and the display / operation unit 100a and the main unit 100b are integrated. The display / operation unit 100a is provided with a display unit 100c and an operation unit 100d, and the main unit 100b is located on the back side of the display / operation unit 100a.

  In the panel instrument 100, the periphery of the display / operation unit 100a is a flange 100e. That is, the width W2 of the main body 100b is smaller than the width W1 of the display / operation unit 100a (the width of the flange 100e), whereby the periphery of the display / operation unit 100a protrudes outside the main body 100b and the flange is formed. The unit 100e is provided. The main body 100b houses a circuit section such as a control operation circuit.

  In this panel instrument mounting structure, as shown in FIG. 14, an axb mounting opening (instrument mounting hole) 101a is formed in the panel 101 in accordance with the panel cutout size of the DIN (Deutsche Industrie Norme) standard. For example, when the size of the main body 100b is 91.4 mm x 91.4 mm, the instrument mounting hole 101a of 92 mm (a) x 92 mm (b) is formed.

  Then, the main body 100b is passed through the instrument mounting hole 101a, positioned on the back side of the panel 101, and the mounting tool 102 is mounted on the upper surface and the lower surface of the main body 100b, and the mounting screw 103 mounted on the mounting tool 102 is mounted. The panel instrument 100 is fixed to the panel 101 by abutting the front end of the panel instrument on the rear surface of the panel 101 and tightening the panel instrument.

  In this panel instrument 100, it is necessary to turn the back surface of the panel 101 and attach the attachment 102 to the main body 100b. However, since the length of the main body 100b in the depth direction is long, the main body 100b is attached to the instrument mounting hole 101a. The panel instrument 100 does not fall off from the panel 101 even if it turns to the back of the panel 101 in a state where it is locked.

  On the other hand, in the case of a thin panel instrument in which the front portion is separated from the main body portion, when the thin panel instrument is locked in the instrument mounting hole 101a and tries to turn to the back of the panel 101, it takes a long time to turn to the back of the panel 101. In addition, the panel instrument may fall off the panel 101. For this reason, in a thin panel instrument, a temporary fixing structure such as a spring-shaped projection is provided on the panel instrument itself, and the panel instrument is temporarily fixed to the instrument mounting hole 101a.

JP 2007-132827 A JP 2013-247249 A JP 2014-038892 A JP 2012-024893 A

  However, if a temporary fixing structure is provided on a thin panel instrument, the structure of the panel instrument becomes complicated. In addition, if the panel instrument itself is provided with a temporary fixing structure, it becomes difficult to remove the panel instrument.

  The present invention has been made to solve such a problem, and an object of the present invention is to prevent a thin panel instrument from dropping off a panel without providing a temporary fixing structure on the panel instrument itself. It is an object of the present invention to provide a panel instrument mounting method and a panel instrument mounting structure.

  In order to achieve such an object, the panel instrument mounting method according to the present invention (mounting method 1) is more effective than a front portion having a flange on the periphery and a flange located on the back side of the front portion. A panel instrument equipped with a narrow instrument rear part, a rear part of the instrument is fitted into an instrument mounting hole provided on the panel, and a flange is pressed against a front surface of the panel to thereby attach the panel instrument to the panel. A mounting bracket having a width smaller than the width of the instrument mounting hole and a height greater than the height of the instrument mounting hole, at least two screws provided in the upper part of the rear surface of the rear part of the device and spaced apart in the horizontal direction. A first step of loosely screwing a screw through a through hole formed in the mounting bracket to the hole and mounting the panel gauge on the panel instrument, and loosening the mounting bracket mounted on the panel instrument into an upper screw hole in the rear surface of the rear of the device. Screw A second step of obliquely lifting the gap between the screws as play, a third step of inserting the lower part of the mounting bracket obliquely lifted from the front side of the panel into the instrument mounting hole, and mounting the instrument from the front side of the panel. A fourth step of inserting the upper part of the mounting bracket into the instrument mounting hole while dropping the lower part of the mounting bracket inserted into the hole into the rear side of the panel, and mounting the mounting bracket passing through the instrument mounting hole from the front side of the panel to the panel. The fifth step of temporarily fixing the panel instrument to the panel by contacting the outer peripheral surface of the rear part of the instrument with the inner peripheral face of the instrument mounting hole in a state where the panel instrument is located on the rear side, and temporarily attaching the panel instrument to the panel from the rear side of the panel. Tighten the screws loosely screwed into the upper screw holes in the rear of the instrument rear of the fixed panel instrument, and form the mounting brackets in the screw holes provided in the lower rear of the instrument rear. A sixth step of fixing the mounting bracket to the panel instrument by tightening the screw through the through hole provided, and pressing the mounting bracket fixed to the panel instrument from the rear side of the panel against the front of the panel. And a fixing step.

  In this invention, the width of the mounting bracket is shorter than the width of the instrument mounting hole, and the vertical width is longer than the vertical width of the instrument mounting hole. Then, insert the mounting bracket into the instrument mounting hole and pass it through, and with the mounting bracket that passed through this instrument mounting hole located on the back side of the panel, attach the outer peripheral surface of the equipment rear to the inner peripheral surface of the instrument mounting hole. Then, the panel instrument is temporarily fixed to the panel. In this temporarily fixed state, since the panel is sandwiched between the flange of the panel instrument and the mounting bracket, there is no possibility that the panel instrument will fall off the panel. Even if the rear part of the instrument of the panel instrument falls off from the instrument mounting hole, the periphery of the instrument mounting hole is sandwiched by the gap between the dropped instrument rear part and the mounting bracket, and the panel instrument falls completely from the panel. You don't. In the present invention, the panel instrument itself is not provided with a temporary fixing structure, and a mounting bracket (attaching instrument) for fixing the panel instrument is used as a member that serves as both fixing and temporarily fixing the panel instrument.

  Also, the panel instrument mounting method according to the present invention (mounting method 2) includes a front portion provided with a flange on the periphery and a device rear portion smaller in width than the flange located on the back side of the front portion. Panel instrument, fitting the rear of the instrument into the instrument mounting hole provided on the panel, pressing the flange against the front of the panel, and mounting the panel instrument on the panel, wherein the width is greater than the width of the instrument mounting hole. A mounting bracket which is short and has a vertical length longer than the vertical width of the instrument mounting hole is formed in the mounting bracket in at least two screw holes provided in the rear side of the rear part of the device at the upper side and spaced apart in the horizontal direction. A first step of loosely screwing a screw through the through hole and attaching the panel instrument to the panel instrument, and attaching a mounting bracket attached to the panel instrument to a gap between the screw loosely threaded into an upper screw hole in the rear surface of the rear of the device. Play A second step of obliquely lifting the mounting bracket from the front side of the panel, and a third step of inserting a lower part of the mounting bracket obliquely raised from the front side of the panel into the instrument mounting hole. A fourth step of inserting the upper part of the mounting bracket into the instrument mounting hole while lowering the lower part on the rear side of the panel, and dropping the mounting bracket that passed through the instrument mounting hole from the front side of the panel to the rear side of the panel. A fifth step of temporarily fixing the panel instrument to the panel by sandwiching the periphery of the instrument mounting hole by a gap between the mounting bracket dropped on the rear side of the panel and the rear part of the instrument located on the front side of the panel; From the rear side, lift the mounting bracket together with the panel instrument, make the outer peripheral surface of the rear part of the instrument abut the inner peripheral surface of the instrument mounting hole, and lock the panel instrument to the panel. Process, from the back side of the panel, tighten the screws loosely screwed into the upper screw holes in the back of the instrument rear of the panel instrument locked to the panel, and provided below the back of the instrument rear. A seventh step of fastening the mounting bracket to the panel instrument by tightening a screw through the through hole formed in the mounting bracket to the screw hole, and attaching the mounting bracket fixed to the panel instrument to the panel instrument from the back side of the panel. And fixing the flange portion so that the flange portion is pressed against the front surface of the panel.

  In this invention, the width of the mounting bracket is shorter than the width of the instrument mounting hole, and the vertical width is longer than the vertical width of the instrument mounting hole. Insert the mounting bracket into the instrument mounting hole and pass it through.The mounting bracket that has passed through the instrument mounting hole is dropped to the back side of the panel, and the mounting bracket dropped to the back side of this panel and the front side of the panel. The panel instrument is temporarily fixed to the panel by sandwiching the periphery of the instrument mounting hole in the gap with the rear part of the instrument. In this temporarily fixed state, since the periphery of the instrument mounting hole is sandwiched by the gap between the mounting bracket located on the back side of the panel and the rear part of the instrument located on the front side of the panel, there is a possibility that the panel instrument may fall off the panel. Absent. Also in this invention, a temporary fixing structure is not provided on the panel instrument itself, and a mounting bracket (attaching instrument) for fixing the panel instrument is used as a member that serves as both fixing and temporarily fixing the panel instrument.

  Also, a panel instrument mounting structure according to the present invention, a panel instrument including a front portion provided with a flange on the periphery and a device rear portion having a width smaller than the flange portion located on the back side of the front portion, a panel A panel with an instrument mounting hole in which the instrument's rear part is fitted with the instrument's collar positioned on the front, and the width is shorter than the instrument mounting hole's width, and the height is longer than the instrument mounting hole's height. And a mounting bracket, wherein the panel instrument has at least two screw holes provided in the rear of the rear part of the apparatus at a laterally spaced apart height, and at least one screw hole provided at a lower part of the rear of the rear part of the equipment. The mounting bracket has a screw hole, and a through hole is formed at a position corresponding to the screw hole provided above and the screw hole provided below in the rear surface of the rear part of the device.

  In this invention, the width of the mounting bracket is shorter than the width of the instrument mounting hole, and the length of the mounting bracket is longer than the length of the instrument mounting hole. Also, the panel instrument is provided with at least two screw holes in the upper part of the rear surface of the rear part of the instrument, spaced apart in the lateral direction, and at least one screw hole below the rear part of the rear part of the equipment. The mounting bracket has a through hole at a position corresponding to a screw hole provided at an upper portion and a screw hole provided at a lower portion in a rear surface of the rear portion of the device. This makes it possible to implement the above-described panel instrument mounting methods 1 and 2 by passing the mounting bracket through the instrument mounting hole formed in the panel.

  According to the present invention, from the front side of the panel, the mounting bracket is inserted into the instrument mounting hole and passed therethrough, and the mounting bracket passing through the instrument mounting hole is positioned on the rear side of the panel, and the outer periphery of the rear part of the device is The mounting bracket that passed through the instrument mounting hole, or the mounting bracket that passed through the instrument mounting hole was dropped to the rear side of the panel. By temporarily fixing the panel instrument to the panel, such as by sandwiching the periphery of the instrument mounting hole in the gap with the rear part of the instrument located on the side, the panel instrument can be thinned from the panel without providing a temporary fixing structure on the panel instrument itself. Panel instrument can be prevented from falling off.

FIG. 1 is a front view, a side view, and a plan view of a panel instrument according to an embodiment of the present invention. FIG. 2 is a rear view of the panel instrument. FIG. 3 is a front view, a side view, and a rear view showing the mounting structure of the panel instrument. FIG. 4 is an exploded perspective view of the mounting structure of the panel instrument. FIG. 5 is a view showing an instrument mounting hole formed when the panel instrument is attached to the panel. FIG. 6 is a view for explaining that in this mounting structure for a panel instrument, simply locking the rear portion of the instrument of the panel instrument in the instrument mounting hole may cause the panel instrument to fall off the panel. FIG. 7A is a diagram illustrating a first step in a first example of a method of mounting a panel instrument using a mounting bracket. FIG. 7B is a diagram illustrating a second step in the first example of the method of mounting the panel instrument using the mounting bracket. FIG. 7C is a diagram illustrating a third step in the first example of the method of mounting the panel instrument using the mounting bracket. Drawing 7D is a figure explaining the 4th process in the 1st example of the mounting method of the panel instrument using the mounting bracket. FIG. 7E is a diagram illustrating a fifth step in the first example of the method of mounting the panel instrument using the mounting bracket. FIG. 7F is a diagram illustrating a sixth step in the first example of the method of mounting the panel instrument using the mounting bracket. FIG. 7G is a diagram illustrating a seventh step in the first example of the method of mounting the panel instrument using the mounting bracket. FIG. 7H is a diagram illustrating a state where the instrument rear portion of the panel instrument falls off from the instrument mounting hole in the first example of the panel instrument mounting method using the mounting bracket. FIG. 8 is a side view and a rear view of a mounting bracket used when the panel instrument is mounted on a panel. FIG. 9 is a side view and a rear view showing a fixed state of a panel instrument to a panel using the mounting bracket. FIG. 10A is a diagram illustrating a first step in a second example of a method of mounting a panel instrument using a mounting bracket. FIG. 10B is a diagram illustrating a second step in the second example of the method of mounting the panel instrument using the mounting bracket. FIG. 10C is a diagram illustrating a third step in the second example of the method of mounting the panel instrument using the mounting bracket. FIG. 10D is a diagram illustrating a fourth step in the second example of the panel instrument mounting method using the mounting bracket. FIG. 10E is a diagram illustrating a fifth step in the second example of the method of mounting the panel instrument using the mounting bracket. FIG. 10F is a diagram illustrating a sixth step in the second example of the method of mounting the panel instrument using the mounting bracket. FIG. 10G is a diagram illustrating a seventh step in the second example of the method of mounting the panel instrument using the mounting bracket. FIG. 10H is a diagram illustrating an eighth step in the second example of the method of mounting the panel instrument using the mounting bracket. FIG. 11 is a diagram showing an example in which a gasket is interposed between the panel instrument and the panel. FIG. 12 is a front view, a side view, and a rear view showing an attachment structure when the entire control device is a panel instrument. FIG. 13 is an exploded perspective view of the mounting structure of the panel instrument. FIG. 14 is a view showing an instrument mounting hole formed when the panel instrument is attached to the panel.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a front view (FIG. 1 (a)), a side view (FIG. 1 (b)) and a plan view (FIG. 1 (c)) of a panel instrument 1 according to an embodiment of the present invention. FIG. 2 shows a rear view of the panel instrument 1 (a view as seen from the direction A in FIG. 1B).

  The panel instrument 1 includes a display / operation unit (front surface) 1a and a device rear unit 1b located on the back side of the display / operation unit 1a. The display / operation unit 1a and the device rear unit 1b are integrated. ing. The display / operation unit 1a is provided with a display unit 1c and an operation unit 1d, and the periphery of the display / operation unit 1a is a flange 1e. That is, the width W2 of the device rear portion 1b is smaller than the width (width of the flange portion 1e) W1 of the display / operation portion 1a, so that the periphery of the display / operation portion 1a protrudes outside the device rear portion 1b and the flange. It is a part 1e.

  In addition, a connector 1f for connection to an instrument body (not shown) is provided protruding from the rear surface of the device rear portion 1b. When the panel instrument 1 is used, the instrument main body (main body) is provided separately from the panel instrument 1. That is, there is no main body on the back of the display / operation unit 1a of the panel instrument 1, and the panel instrument 1 is made thinner by eliminating the main body.

  Screw holes 1g are formed at four corners on the back surface of the rear portion 1b. That is, two screw holes 1g are formed in the upper part of the rear surface of the rear part 1b of the apparatus at a distance in the horizontal direction, and two screw holes 1g are formed in the lower part of the rear part of the rear part 1b. Here, the upper two screw holes 1g are g1 and 1g2, and the lower screw holes 1g are 1g3 and 1g4.

[Installation of panel instrument]
FIG. 3 shows a mounting structure of the panel instrument 1. 3A is a front view, FIG. 3B is a side view, and FIG. 3C is a rear view. FIG. 4 is an exploded perspective view of the mounting structure of the panel instrument 1.

  3 and 4, reference numeral 2 denotes a panel, 3 denotes a mounting bracket, 4 denotes mounting screws (two places) for fixing panel instruments mounted above and below the mounting bracket 3, and 5 denotes screws for fixing the mounting bracket. (4 places).

  The mounting bracket 3 has through holes 3a (four places) for the screws 5. The mounting bracket 3 has an opening 3b serving as an escape hole for passing a connector 1f protruding from the rear surface of the instrument rear portion 1b when the mounting bracket 3 is fixed to the rear surface of the instrument rear portion 1b of the panel instrument 1. Have been. In this example, four openings 3b are formed, but one of them is used as a relief hole for the connector 1f.

  In the mounting structure of the panel instrument 1, as shown in FIG. 5, an axb mounting opening (instrument mounting hole) 2a is formed in the panel 2 according to a DIN standard panel cut dimension. For example, when the size of the device rear portion 1b of the panel instrument 1 is 91.4 mm × 91.4 mm, the instrument mounting hole 2a of 92 mm (a) × 92 mm (b) is formed.

  In the present embodiment, the instrument rear portion 1b of the panel instrument 1 is inserted into the instrument mounting hole 2a, and the panel instrument 1 is fixed to the panel 2 using the mounting bracket 3 from the rear side of the panel 2. In this case, as shown in FIG. 6, when the instrument rear portion 1b of the panel instrument 1 is locked in the instrument mounting hole 2a and the panel instrument 1 is to be rotated to the back of the panel 2, the length of the instrument rear portion 1b in the depth direction is short (thickness). Therefore, there is a possibility that the panel instrument 1 may fall off the panel 2 before turning to the back of the panel 2.

  Therefore, in the present embodiment, the width c of the mounting bracket 3 is shorter than the width a of the instrument mounting hole 2a (c <a), and the height d is longer than the height b of the instrument mounting hole 2a ( d> b) First, the mounting bracket 3 is loosely screwed above the rear surface of the instrument rear portion 1b of the panel instrument 1, and the loosely screwed mounting bracket 3 is inserted into the instrument mounting hole 2a from the front side of the panel 2. To be positioned on the back side of the panel 2 and to temporarily fix the instrument rear portion 1b of the panel instrument 1 by locking it in the instrument mounting hole 2a, and from the rear side of the panel 2 in this temporarily fixed state. The panel instrument 1 is fixed to the panel 2 using the mounting bracket 3.

  FIG. 8 shows a side view (FIG. 8A) and a rear view (FIG. 8B) of the mounting bracket 3. As described above, the mounting bracket 3 has a width c that is shorter than the width a of the instrument mounting hole 2a and a height d that is longer than the height b of the instrument mounting hole 2a. In addition, four through holes 3a for the screw 5 are formed at two places above and two places below. Here, the upper two through holes 3a are 3a1 and 3a2, and the lower two through holes 3a are 3a3 and 3a4.

  In this mounting bracket 3, the upper through holes 3a1 and 3a2 are formed at positions corresponding to the upper screw holes 1g1 and 1g2 formed on the back surface of the instrument rear portion 1b of the panel instrument 1, and the lower through holes are formed. 3a3 and 3a4 are formed at positions corresponding to the lower screw holes 1g3 and 1g4 formed on the back surface of the instrument rear portion 1b of the panel instrument 1. Further, the mounting bracket 3 is formed with four openings 3b serving as escape holes for passing a connector 1f protruding from the rear surface of the device rear portion 1b, and is formed on upper and lower flange surfaces 3c (3c1, 3c2). Is provided with a mounting screw 4 for fixing a panel instrument.

  Hereinafter, a method of mounting the panel instrument 1 to the panel 2 using the mounting bracket 3 will be specifically described.

[First example of mounting method of panel instrument]
First, a first example of a method of attaching panel instrument 1 to panel 2 using attachment bracket 3 will be described with reference to FIGS. 7A to 7H.

[First step: FIG. 7A]
In the first step, as shown in FIG. 7A, screws 5 and 5 are inserted through through holes 3a1 and 3a2 formed in the mounting bracket 3 into upper screw holes 1g1 and 1g2 in the rear surface of the instrument rear portion 1b of the panel instrument 1. And the mounting bracket 3 is mounted on the panel instrument 1.

  In this example, the screws 5 are loosely screwed into the screw holes 1g1 and 1g2 through the through holes 3a1 and 3a2 so that a gap of about 0.5 mm is formed between the neck of the screws 5 and 5 and the mounting bracket 3. I do.

[Second step: FIG. 7B]
In the second step, as shown in FIG. 7B, the mounting attached to the panel instrument 1 with the gap between the screws 5, 5 loosely screwed into the upper screw holes 1g1, 1g2 in the back surface of the equipment rear portion 1b as play. Lift the bracket 3 diagonally.

  That is, the screws 5, 5 are loosely screwed into the upper screw holes 1g1, 1g2 in the rear surface of the rear part 1b of the device, so that the mounting bracket 3 is only a gap between the lower part of the screws 5, 5 and the mounting bracket 3. Can be lifted diagonally. In this example, the mounting bracket 3 is lifted by about 10 ° (α ≒ 10 °). It is sufficient that a gap is provided in the panel 2 so that the panel instrument 1 and the mounting bracket 3 can be sandwiched therebetween, and the angle α at which the panel is lifted obliquely is not limited to about 10 °.

[Third step: FIG. 7C]
In the third step, as shown in FIG. 7C, the lower part of the mounting bracket 3 which is lifted obliquely from the front side of the panel 2 is inserted into the instrument mounting hole 2a. That is, the entire panel instrument 1 to which the mounting bracket 3 is attached is lifted up, and the lower part of the oblique mounting bracket 3 is inserted into the instrument mounting hole 2a. Since the width c of the mounting bracket 3 is shorter than the width a of the instrument mounting hole 2a, the lower part of the mounting bracket 3 can be inserted into the instrument mounting hole 2a.

[Fourth step: FIG. 7D]
In the fourth step, as shown in FIG. 7D, the lower part of the mounting bracket 3 inserted into the instrument mounting hole 2a is dropped on the rear side of the panel 2 from the front side of the panel 2 while the upper part of the mounting bracket 3 is attached to the instrument mounting hole. 2a. That is, the entire panel instrument 1 to which the mounting bracket 3 is attached is lowered, and the panel instrument 1 is inserted into the instrument mounting hole 2a so as to dive above the mounting bracket 3.

[Fifth step: FIG. 7E]
In the fifth step, as shown in FIG. 7E, the mounting bracket 3 having passed through the instrument mounting hole 2a is lifted together with the panel instrument 1, and the outer peripheral surface 1h of the instrument rear portion 1b of the panel instrument 1 is fixed to the inner peripheral surface of the instrument mounting hole 2a. 2b. Since the outer diameter of the rear portion 1b of the instrument is slightly smaller than the inner diameter of the instrument mounting hole 2a, the lower end surface (bottom surface) of the outer peripheral surface 1h of the instrument rear portion 1b and the inner peripheral surface 2b of the instrument mounting hole 2a are lower. Side end surface (bottom surface). Thereby, panel instrument 1 is temporarily fixed to panel 2.

  In this temporarily fixed state, the panel 2 is sandwiched between the flange 1e of the panel instrument 1 and the mounting bracket 3, and the mounting bracket 3 and the flange 1e are hooked on the panel 2, so that the equipment rear portion 1b of the panel instrument 1 The possibility of falling off from instrument mounting hole 2a is small.

  Even if the instrument rear portion 1b of the panel instrument 1 falls off from the instrument mounting hole 2a, as shown in FIG. 7H, the instrument mounting hole is formed in the gap between the instrument instrument rear portion 1b of the panel instrument 1 and the mounting bracket 3 as shown in FIG. Since the bottom (peripheral edge) of 2a is sandwiched, the panel instrument 1 does not completely fall off the panel 2.

[Sixth step: FIG. 7F]
In the sixth step, as shown in FIG. 7F, the panel instrument 1 goes around the rear surface of the panel 2 and loosens from the rear side of the panel 2 into the screw holes 1g1 and 1g2 of the instrument rear portion 1b of the panel instrument 1 temporarily fixed to the panel 2. The mounting bracket 3 is fixed to the panel instrument 1 by tightening the screws 5, 5 which are screwed in and through the through holes 3a2, 3a4 in the screw holes 1g3, 1g4 of the rear part 1b of the device.

[Seventh step: FIG. 7G]
In the seventh step, as shown in FIG. 7G, the mounting screws 4 mounted above and below the mounting bracket 3 are turned from the back side of the panel 2, and the tips of the mounting screws 4 are protruded toward the back surface of the panel 2. The panel instrument 1 is fixed to the panel 2 by hitting and tightening. That is, by tightening the mounting screw 4 from the rear side of the panel 2, a reaction force of a screw axial force is generated between the panel 2 and the panel instrument 1, and the panel instrument 1 is fixed to the panel 2.

  FIG. 9 is an enlarged view of a state where the panel instrument 1 is fixed to the panel 2 using the mounting bracket 3. FIG. 9A is a side view, and FIG. 9B is a rear view. When the mounting screw 4 is tightened, a reaction force of a screw axial force is generated between the panel 2 and the panel instrument 1. The flange 1e is pressed against the front surface of the panel 2, and the panel gauge 1 is fixed to the panel 2 by being sandwiched between the flange 1e of the panel gauge 1 and the mounting bracket 3.

  As can be seen from the above description, in the first example of the panel instrument mounting method, the mounting bracket 3 is inserted into the instrument mounting hole 2a and passed therethrough. Since the outer peripheral surface 1h of the instrument rear portion 1b is brought into contact with the inner peripheral surface 2b of the instrument mounting hole 2a in a state where the panel instrument 1 is positioned on the back side, the panel instrument 1 is temporarily fixed to the panel 2. The panel instrument 1 (thin panel instrument) can be prevented from falling off from the panel 2 without providing a temporary fixing structure on the panel instrument 1 itself.

[Second example of mounting method of panel instrument]
Next, a second example of a method of attaching the panel instrument 1 to the panel 2 using the attachment bracket 3 will be described with reference to FIGS. 10A to 10H.

  The steps from FIG. 10A to FIG. 10D (first step to fourth step) are the steps from FIG. 7A to FIG. 7D (first step to fourth step) described in the first example of the panel instrument mounting method described above. Therefore, the description is omitted.

  In the second example of the method of mounting the panel instrument, in the fourth step (FIG. 10D), after inserting the instrument into the instrument mounting hole 2a so as to go under the mounting bracket 3, the mounting bracket 3 is not lifted up. And let it fall.

  In this case, as shown in FIG. 10E, the bottom (peripheral edge) of the instrument mounting hole 2a is sandwiched by the gap between the instrument rear portion 1b of the panel instrument 1 and the mounting bracket 3, and the mounting bracket 3 is prevented from dropping further. Is done. In this state, the panel instrument 1 is temporarily fixed to the panel 2 (FIG. 10E (fifth step)).

  That is, in the second example of the panel instrument mounting method, the state shown in FIG. 7H in the first example of the panel instrument mounting method (a state in which the instrument rear portion 1b of the panel instrument 1 is dropped from the instrument mounting hole 2a) is created. This state is referred to as a temporarily fixed state.

  Then, the mounting bracket 3 is lifted together with the panel gauge 1 from the back side of the panel 2 so that the outer peripheral surface 1h of the instrument rear part 1b is brought into contact with the inner peripheral surface 2b of the gauge mounting hole 2a from the rear side of the panel 2 (FIG. FIG. 10F (sixth step)). As a result, the panel instrument 1 is locked to the panel 2 on the rear side of the panel 2.

  Thereafter, panel instrument 1 is fixed to panel 2 in the same manner as in FIGS. 7F and 7G. That is, the mounting bracket 3 is fixed by tightening the screw 5 on the back surface of the instrument rear portion 1b of the panel instrument 1 locked to the panel 2 (FIG. 10G (seventh step)). The panel instrument 1 is fixed to the panel 2 by tightening the attached mounting screws 4 (FIG. 10H (eighth step)).

  As can be seen from the above description, in the second example of the panel instrument mounting method, the mounting bracket 3 is inserted into the instrument mounting hole 2a and passed therethrough, and the mounting bracket 3 that has passed through the instrument mounting hole 2a is The panel instrument is dropped to the rear side, and the bottom (peripheral edge) of the instrument mounting hole 2a is sandwiched between the mounting bracket 3 dropped to the rear side of the panel 2 and the equipment rear portion 1b located on the front side of the panel 2. Since the panel instrument 1 is temporarily fixed to the panel 2, the panel instrument 1 (thin panel instrument) can be prevented from falling off from the panel 2 without providing a temporary fixing structure on the panel instrument 1 itself. .

  In the above-described embodiment, the mounting screw 4 is mounted on the mounting bracket 3 before fixing to the panel instrument 1. However, the mounting screw 4 is mounted on the mounting bracket 3 after turning to the back of the panel 2. And may be tightened.

  Further, in the above-described embodiment, the mounting bracket 3 is fixed to the rear surface of the instrument rear portion 1b of the panel instrument 1 with the screw 5 at the upper two places and the lower two places, for a total of four places. Is not something that can be done. In other words, the upper part may be at least two places for stopping the rotation of the mounting bracket 3, and the lower part may be one place.

  Further, in the above-described embodiment, the panel instrument 1 is attached to the panel 2 such that the back surface of the flange 1e of the panel instrument 1 is brought into contact with the front face of the panel 2, but as shown in FIG. The gasket 6 may be interposed between the back surface of the flange 1e of the panel instrument 1 and the edge of the instrument mounting hole 2a. In this manner, the gasket 6 is clamped between the back surface of the flange 1e of the panel instrument 1 and the edge of the instrument mounting hole 2a, and the clamped surface becomes a sealing surface. The gap between 1e and panel 2 is closed, and the waterproof and dustproof functions are guaranteed.

  In the above-described embodiment, the display / operation unit 1a of the panel instrument 1 is provided with the display unit 1c and the operation unit 1d. However, only the display unit 1c may be provided. Only the portion 1d may be provided.

[Expansion of Embodiment]
As described above, the present invention has been described with reference to the embodiments. However, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the technical idea of the present invention.

  INDUSTRIAL APPLICABILITY The present invention can be used for a temperature controller attached to a panel and used.

  DESCRIPTION OF SYMBOLS 1 ... Panel instrument, 1a ... Display / operation part (front part), 1b ... Equipment rear part, 1c ... Display part, 1d ... Operation part, 1e ... Flange part, 1g (1g1-1g4) ... Screw hole, 1h ... Outer peripheral surface Reference numeral 2: Panel, 2a: Opening (instrument mounting hole), 2b: Inner peripheral surface, 3: Mounting bracket, 3a (3a1 to 3a4): Through hole, 4: Mounting screw, 5: Screw.

Claims (3)

A panel instrument provided with a front portion provided with a flange portion on the periphery and a device rear portion having a smaller width than the flange portion located on the back side of the front portion, an instrument mounting hole provided with the device rear portion provided on a panel. A method of attaching a panel instrument attached to the panel by pressing the flange against the front surface of the panel,
At least a mounting bracket having a lateral width shorter than the lateral width of the instrument mounting hole and a longitudinal width longer than the longitudinal width of the instrument mounting hole is provided at an upper side in the rear surface of the rear part of the device and is laterally separated. A first step of loosely screwing a screw through two through holes formed in the mounting bracket into the screw holes and attaching the screw to the panel instrument;
A second step of obliquely lifting the mounting bracket attached to the panel instrument with a gap between screws loosely screwed into upper screw holes in the rear surface of the rear portion of the device as play;
A third step of inserting the lower part of the mounting bracket, which is obliquely lifted, from the front side of the panel into the instrument mounting hole;
A fourth step of inserting the upper part of the mounting bracket into the instrument mounting hole while dropping the lower part of the mounting bracket inserted into the instrument mounting hole from the front side of the panel to the rear side of the panel,
From the front side of the panel, in a state where the mounting bracket passing through the instrument mounting hole is located on the back side of the panel, the outer peripheral surface of the instrument rear portion is brought into contact with the inner peripheral surface of the instrument mounting hole, A fifth step of temporarily fixing the panel instrument to the panel;
From the back side of the panel, tighten the screws loosely screwed into the upper screw holes in the back of the instrument rear of the panel instrument temporarily fixed to the panel, and provided below the inside of the back of the instrument rear. A sixth step of tightening a screw through a through hole formed in the mounting bracket to the screw hole, and fixing the mounting bracket to the panel instrument;
A seventh step of fixing a mounting bracket fixed to the panel instrument from the rear side of the panel so that a flange portion of the panel instrument is pressed against the front surface of the panel. Mounting method. A panel instrument provided with a front portion provided with a flange portion on the periphery and a device rear portion having a smaller width than the flange portion located on the back side of the front portion, an instrument mounting hole provided with the device rear portion provided on a panel. A method of attaching a panel instrument attached to the panel by pressing the flange against the front surface of the panel,
At least a mounting bracket having a lateral width shorter than the lateral width of the instrument mounting hole and a longitudinal width longer than the longitudinal width of the instrument mounting hole is provided at an upper side in the rear surface of the rear part of the device and is laterally separated. A first step of loosely screwing a screw through two through holes formed in the mounting bracket into the screw holes and attaching the screw to the panel instrument;
A second step of obliquely lifting the mounting bracket attached to the panel instrument with a gap between screws loosely screwed into upper screw holes in the rear surface of the rear portion of the device as play;
A third step of inserting the lower part of the mounting bracket, which is obliquely lifted, from the front side of the panel into the instrument mounting hole;
A fourth step of inserting the upper part of the mounting bracket into the instrument mounting hole while dropping the lower part of the mounting bracket inserted into the instrument mounting hole from the front side of the panel to the rear side of the panel,
From the front side of the panel, the mounting bracket that has passed through the instrument mounting hole is dropped to the rear side of the panel, and the mounting bracket dropped to the rear side of the panel and the rear part of the device located on the front side of the panel are separated. A fifth step of temporarily fixing the panel instrument to the panel by sandwiching a periphery of the instrument mounting hole with a gap;
From the back side of the panel, lift the mounting bracket together with the panel instrument,
A sixth step of bringing the outer peripheral surface of the rear portion of the device into contact with the inner peripheral surface of the instrument mounting hole and locking the panel instrument to the panel;
From the back side of the panel, tighten a screw loosely screwed into an upper screw hole in the back of the instrument rear of the panel instrument locked to the panel, and provided below the back of the instrument rear. A seventh step of tightening a screw through a through hole formed in the mounting bracket to the screw hole, and fixing the mounting bracket to the panel instrument;
An eighth step of fixing a mounting bracket fixed to the panel instrument from the back side of the panel so that a flange portion of the panel instrument is pressed against the front surface of the panel. Mounting method. A method for mounting a panel instrument according to claim 1 or 2 ,
The panel instrument is
A connection connector is provided protruding on the rear surface of the rear part of the device,
The mounting bracket,
A method for mounting a panel instrument, wherein an escape hole for passing the connector is formed at a position corresponding to the connector.

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