JP2009169034A - Display panel mounting structure and machine tool having the mounting structure - Google Patents

Abstract

Provided is a display panel mounting structure capable of mounting a plurality of types of display panels having different shapes to the same housing, and a machine tool including the mounting structure.
A panel fixing hole 331 into which a screw is inserted is formed in the panel fixing portion 32 of the mounting member 30 at a position facing the screw hole 11 of the display panel 10. The housing fixing portion 35 of the attachment member 30 has a housing fixing hole 36 into which a screw is inserted at a position facing the screw hole 26 of the housing 20. Then, the panel fixing portion 32 is fixed to the display panel 10 by connecting screws to the panel fixing hole 331 of the panel fixing portion 32 and the screw hole 11 of the display panel 10. Further, screws are communicated with the housing fixing hole 36 of the housing fixing portion 35 and the screw hole 26 of the housing 20 to fix the housing fixing portion 35 to the housing 20. Thereby, the display panel 10 is attached to the housing 20 via the attachment member 30.
[Selection] Figure 2

Description

  The present invention relates to a display panel mounting structure for mounting a display panel such as a liquid crystal display or a plasma display on a housing, and a machine tool including the mounting structure.

Conventionally, a plurality of pins projecting at predetermined positions on a housing are inserted into mounting holes formed in the outer peripheral edge of the display panel, and screws are screwed into screw holes formed in the pins. Thus, a mounting structure for fixing the display panel to the housing is known. For example, as shown in FIG. 6, in the mounting structure described in Patent Document 1, pins 426 are provided in advance at predetermined positions of the housing 420 so as to correspond to a plurality of mounting holes drilled in the display panel. ing. Then, when the pin 426 is inserted into the mounting hole of the display panel, the display panel is accurately positioned at a predetermined position in the housing 420. Therefore, the display panel can be attached to the housing 420 without causing positional displacement.
JP 2006-55976 A

  However, in such a conventional display panel mounting structure, when another type of display panel having a different shape is used, the pin 426 of the housing 420 cannot be inserted into the mounting hole of the display panel. I had to prepare a new case for it. In addition, other parts such as operation switches and boards attached to the housing 420 must be replaced with a newly prepared housing, resulting in a wasteful cost and work.

  The present invention has been made to solve the above problems, and provides a display panel mounting structure capable of mounting a plurality of types of display panels having different shapes to the same housing, and a machine tool provided with the mounting structure. The purpose is to do.

  In order to achieve the above object, a display panel mounting structure according to a first aspect of the present invention includes a mounting portion fixed to the mounted portion in a housing including a mounted portion for mounting the display panel. A display panel mounting structure for mounting a display panel, comprising: a mounting member that is interposed between the display panel and the housing and fixes the display panel; and the mounting member is configured to mount the display panel. A panel fixing portion that is fixed to the portion, and a housing fixing portion that is fixed to the attached portion of the housing.

  The display panel mounting structure according to claim 2 of the present invention, in addition to the structure of the invention according to claim 1, is a screw hole through which the mounted portion of the housing is inserted, The housing fixing portion is provided with a housing fixing hole, which is a hole through which a screw for fixing the housing fixing portion and the housing is inserted, at a position facing the screw hole of the housing. The panel fixing portion is provided with a panel fixing hole which is a hole through which a screw for fixing the panel fixing portion and the display panel is inserted at a position facing the mounting portion of the display panel. To do.

  According to a third aspect of the present invention, in addition to the structure of the second aspect of the present invention, the housing is a plate in which an opening for visually recognizing the display panel is formed. A frame-shaped frame frame portion, and a plate-shaped mounting member fixing piece extending from a pair of both end portions of the frame frame portion to the side on which the display panel is mounted, and having the screw holes formed therein, The housing fixing portion of the mounting member is formed in a plate shape, and is fixed in parallel to the plate surface of the mounting member fixing piece.

  According to a fourth aspect of the present invention, in addition to the structure of the first aspect of the present invention, the mounting member includes the plate-shaped panel fixing portion and the housing. A support piece that extends from a pair of both end portions of the panel fixing portion to the side, and supports the panel fixing portion at a predetermined distance from the housing, and an end of the support piece opposite to the panel fixing portion The housing fixing portion extending in a direction parallel to the panel fixing portion, and the attached portion of the housing has a screw hole projecting to the side on which the display panel is attached. A housing fixing hole, which is either a formed protrusion or a screw, and is a hole through which the attached portion is inserted into the housing fixing portion at a position facing the attached portion of the housing. Is formed.

  According to a fifth aspect of the present invention, in addition to the configuration of the invention according to any one of the second to fourth aspects, the panel fixing portion of the mounting member includes the mounting portion. A plurality of panel fixing holes for fixing a plurality of types of display panels having different positions are formed.

  According to a sixth aspect of the present invention, in addition to the structure of the first aspect of the present invention, the mounting portion of the housing projects to the side on which the display panel is mounted. The protrusion is formed with a screw hole or a screw, and the housing fixing portion is provided with a housing fixing hole that is a hole through which the attached portion is inserted. One of the plurality of attached portions provided in the housing and one of the plurality of attachment portions provided in the display panel are respectively fixed.

  According to a seventh aspect of the present invention, in addition to the configuration of the invention according to any one of the first to fifth aspects, the panel fixing portion of the mounting member is a back of the display panel. An inverter fixing unit for fixing an inverter for supplying power to the light is provided.

  A machine tool according to an eighth aspect of the present invention includes the display panel mounting structure according to any one of the first to seventh aspects.

  According to the display panel mounting structure described in claim 1 of the present invention, the display panel mounting portion is fixed to the panel fixing portion of the mounting member, and the mounted portion of the housing is fixed to the housing fixing portion of the mounting member. Thus, the display panel can be attached to the housing. Therefore, when another type of display panel with a different shape is newly attached to the housing, the display panel can be attached without using a new housing by simply using an attachment member that can accommodate the shape of the display panel. it can. Therefore, useless cost and work can be reduced.

  In addition to the effect of the invention described in claim 1, the display panel mounting structure according to claim 2 of the present invention allows screws to communicate with the screw hole of the housing and the housing fixing hole of the mounting member. Thus, the mounting member can be easily fixed to the housing. Moreover, a display panel and an attachment member can be easily fixed by fixing the attaching part of a display panel and the panel fixing hole of an attachment member using a screw.

  In addition to the effect of the invention described in claim 2, the display panel mounting structure according to claim 3 of the present invention is attached to the display panel mounting side from a pair of both ends of the frame frame portion of the housing. Each member fixing piece extends, and a screw hole is drilled in the mounting member fixing piece. And the display panel is attached to a housing | casing by the plate-shaped housing | casing fixing | fixed part in an attachment member being arrange | positioned in parallel with an attachment member fixing piece, and fixing with a screw. Therefore, the width | variety of a housing | casing can be narrowed compared with the case where the attachment member fixing piece is extended in parallel with respect to the frame frame part. Therefore, it is possible to prevent the space from being wasted.

  Further, the display panel mounting structure according to claim 4 of the present invention is provided with a housing fixing portion at both ends of the mounting member in addition to the effect of the invention according to claim 1. It can be more firmly fixed to the housing. In addition, since it is possible to perform the fixing work after the attached portion is inserted through the housing fixing hole and the mounting member is positioned with respect to the housing, there is no need to perform the fixing work while pressing the mounting member at the mounting position. The mounting member can be easily and accurately fixed to the housing. Further, since the attached portion cannot be viewed from the opposite side of the housing to the side where the display panel is attached, that is, from the front side of the display panel, it is possible to prevent the appearance from being impaired.

  In addition to the effect of the invention described in any one of claims 2 to 4, the display panel mounting structure according to claim 5 of the present invention is different in position of the mounting portion from the panel fixing portion of the mounting member. A plurality of panel fixing holes for fixing a plurality of types of display panels are formed. Therefore, when attaching another type of new display panel to the housing, it is possible to easily attach the display panel by simply changing the panel fixing hole to be used without preparing a new attachment member.

  In addition to the effect of the invention described in claim 1, the display panel mounting structure described in claim 6 of the present invention is provided in one of a plurality of attached portions provided in the housing and the display panel. One of the plurality of attachment portions is fixed by the attachment member. Therefore, the shape of the mounting member can be reduced as compared with the case where a plurality of mounted portions and mounting portions are fixed by one mounting member. Further, since the attached portion cannot be viewed from the opposite side of the housing to the side on which the display panel is attached, it is possible to prevent the appearance from being impaired.

  In addition to the effect of the invention according to any one of claims 1 to 5, the mounting structure of the display panel according to claim 7 of the present invention is the same as the plurality of types of display panels having different shapes. It has both a function that enables attachment to the housing and a function that enables attachment of an inverter for supplying power to the backlight of the display panel. Therefore, the number of parts can be reduced, and work efficiency can be improved and cost can be reduced.

  Moreover, the machine tool according to claim 8 of the present invention can achieve the same effects as the invention according to any one of claims 1 to 7.

  Hereinafter, a first embodiment to which the present invention is applied will be described with reference to FIGS. 1 to 3. FIG. 1 is a front view of a machining center 1 having an operation panel 100 to which the present invention is applied, FIG. 2 is an exploded perspective view of the operation panel 100 of the first embodiment, and FIG. It is the perspective view which looked at the operation panel 100 of the state with which was mounted | worn from diagonally left backward. 2 and 3 is the front side of the operation panel 100, the front side is the back side, the upper right side of the page of FIGS. 2 and 3 is the upper side of the operation panel 100, and the lower left side of the page is the lower side.

  First, the schematic structure of the machining center 1 will be described with reference to FIG. As shown in FIG. 1, the machining center 1 includes a machine body (not shown) that processes a workpiece and a splash cover 2 that surrounds and protects the periphery of the machine body. In the machine main body, various operations such as drilling and boring of the workpiece are performed by rotating the spindle with the tool mounted on the tip at a high speed. The machining center 1 corresponds to the “machine tool” of the present invention.

  Next, the splash cover 2 will be described. The splash cover 2 is a substantially rectangular parallelepiped metal cover for preventing scattering of chips and coolant (cutting fluid) generated by the operation of the machine body and preventing the surroundings from being contaminated. The front surface of the splash cover 2 is formed with a cover opening (not shown) for inserting and removing a workpiece. The cover opening has a pair of left open / close doors 3 that are slidable on the left and right sides, and a right Opening / closing doors 4 are respectively provided. Further, window portions 5 and 6 are respectively provided in the approximate centers of the left opening door 3 and the right opening door 4. Further, a vertically long and substantially rectangular operation panel opening (not shown) is opened on the right side of the right opening / closing door 4 of the splash cover 2, and an operation for operating the machining center 1 is performed in the operation panel opening. The panel 100 is fitted.

  Next, the operation panel 100 will be described. As shown in FIG. 1, the operation panel 100 is a rectangular panel that is vertically long when viewed from the front. The operation panel 100 mainly includes a liquid crystal display panel 10 for monitoring the setting screen and operating status of the machining center 1, It comprises a housing 20 to which various keys and the like are attached. An opening 22 (see FIG. 2) for making the display panel 10 visible from the front side is formed in substantially the upper half of the housing 20, and the display panel 10 is attached in accordance with the opening position. It is done. Also, below the opening in the housing 20, a numeric keypad (not shown) for inputting set values, various operation keys for switching the screen displayed on the display panel 10, and the like of the machining center 1 are shown. Various keys and switches such as a start switch are arranged.

  Next, details of the structure of the operation panel 100, which is a feature of the present invention, will be described with reference to FIG. As shown in FIG. 2, the operation panel 100 includes a display panel 10, a housing 20, a pair of attachment members 30 and 30, and an inverter 40 for turning on the backlight of the display panel 10.

  First, the structure of the display panel 10 will be described. The display panel 10 is formed in a rectangular plate shape, and screw holes 11 into which screws 15 (see FIG. 3) for fixing the mounting panel 30 and the mounting members 30 and 30 are inserted in the four corners. Has been. In general, if the display panel manufacturers are different, the positions of the drilled screw holes 11 are different even for display panels of the same size. Although not shown, a plurality of backlights composed of cold cathode fluorescent lamps and external electrode fluorescent lamps are disposed on the back side inside the display panel 10, and the drive voltage of the backlight is output by an inverter 40. Is done. The inverter 40 is provided with two holes 41 into which screws are inserted. Further, the screw hole 11 of the display panel 10 corresponds to an “attachment portion” of the present invention.

  Next, the structure of the housing 20 will be described. The housing 20 is composed of a frame 21 and a pair of left and right mounting member fixing pieces 24, 24, which may be formed of a material having moderate rigidity such as metal or synthetic resin. The frame frame portion 21 is a plate-like member having a rectangular shape when viewed from the front, and a large number of screw holes and pins for fixing various keys, switches, and the like are disposed in a substantially lower half on the back side. In addition, a rectangular opening 22 for making the display panel 10 visible from the front side is formed in a substantially upper half of the frame portion 21. Furthermore, from substantially upper half of the left and right end portions of the frame frame portion 21, the mounting member fixing pieces 24, 24 which are band-shaped plate materials for fixing the mounting members 30, 30 according to the opening positions of the opening portions 22 Are vertically extended toward the back side. A screw hole into which a screw 15 (see FIG. 3) for fixing the mounting members 30, 30 and the housing 20 is inserted in the vicinity of the end in the longitudinal direction (vertical direction) of the mounting member fixing pieces 24, 24. 26 is drilled. The screw hole 26 corresponds to the “attached portion” in the present invention.

  Next, the attachment members 30 will be described. The attachment members 30 and 30 are members for fixing the display panel 10 to the housing 20 and are formed of metal, synthetic resin, or the like. Each of the mounting members 30 and 30 includes a panel fixing portion 32 fixed to the display panel 10 and a housing fixing portion 35 fixed to the mounting member fixing piece 24 of the housing 20.

  The panel fixing part 32 is a strip-like plate material arranged in parallel with the display panel 10, and a plurality of panels into which screws 15 (see FIG. 3) for fixing the attachment members 30, 30 and the display panel 10 are inserted. Fixed holes 331 and 332 are formed. Here, in one panel fixing portion 32, four panel fixing holes 331 and 332 are previously drilled in order to fix two types of display panels having different screw hole 11 drilling positions. ing. That is, the panel fixing holes 331 formed in the vicinity of both ends in the longitudinal direction of the panel fixing portion 32 are formed to fix the display panel 10 in which the screw holes 11 are formed in the vicinity of the four corners. . In addition, the panel fixing hole 332 drilled closer to the center than the panel fixing hole 331 fixes the display panel in which the drilling position of the screw hole 11 is closer to the center of the end than the drilling position in the display panel 10. Is formed for. Further, two mounting screws 34 for mounting the inverter 40 project from the center of the panel fixing portion 32 of the mounting member 30 on the right side (upper left side in FIG. 2). 34 corresponds to the “inverter fixing portion” of the present invention.

  The case fixing part 35 is a belt-like plate material extending vertically from one end in the short direction of the panel fixing part 32 to the case 20 side. In the vicinity of both ends in the longitudinal direction of the housing fixing portion 35, housing fixing holes 36 into which the screws 15 are inserted are located at positions facing the screw holes 26 of the mounting member fixing pieces 24, 24 of the housing 20. It has been drilled. The length in the short direction of the housing fixing portion 35 is the same as the length in the short direction of the attachment member fixing pieces 24, 24 of the housing 20. Thereby, a part of the housing fixing portion 35 is prevented from protruding to the front side of the housing 20.

  Next, an example of a procedure for attaching the display panel 10 to the housing 20 via the attachment members 30 and 30 according to the first embodiment will be described with reference to FIGS. 2 and 3. As shown in FIG. 2, first, the attachment members 30 are fixed to the display panel 10. The left mounting member 30 is positioned at the end of the left side of the display panel 10 (the lower right side in the drawing in FIG. 2) so that the panel fixing unit 32 is parallel to the display panel 10. The panel fixing hole 331 and the two screw holes 11 in the display panel 10 are aligned with each other. Then, the screw 15 (see FIG. 3) is communicated with the panel fixing hole 331 and the screw hole 11 to fix both. Similarly, on the right side of the display panel 10, the right mounting member 30 is fixed with screws 15. Next, after inserting the two mounting screws 34 projecting from the right mounting member 30 into the hole 41 of the inverter 40, the nut 16 (see FIG. 3) is screwed onto the mounting screw 34. Thus, the inverter 40 is fixed to the mounting member 30.

  Next, the attachment members 30 and 30 fixed to the display panel 10 are attached to the attachment member fixing pieces 24 and 24 of the housing 20. The display panel 10 is positioned so that the attachment member fixing pieces 24 and 24 of the housing 20 enter the gaps between the left and right ends of the display panel 10 and the attachment members 30 and 30. The four housing fixing holes 36 drilled in the housing fixing portion 35 of the mounting members 30 and 30 and the four screw holes 26 drilled in the mounting member fixing pieces 24 and 24 of the housing 20 are provided. Match each one. Then, the screw 15 is communicated with the housing fixing hole 36 and the screw hole 26 to fix them. Thereby, the display panel 10 is attached to the housing 20. In addition, this attachment procedure is an example and it cannot be overemphasized that another procedure may be used. For example, the display panel 10 can be attached to the attachment members 30 and 30 after the attachment members 30 and 30 are first fixed to the housing 20.

  As described above, in the operation panel 100 according to the first embodiment, the display panel 10 is fixed to the panel fixing portion 32 of the mounting member 30 and the casing 20 is fixed to the casing fixing portion 35, whereby the display panel is displayed. 10 can be attached to the housing 20. Accordingly, when another type of display panel having a different drilling position of the screw hole 11 is newly attached to the housing 20, a new housing is prepared only by using the attachment member 30 that can correspond to the shape of the display panel. The display panel can be attached without any trouble. Further, four panel fixing holes 331 and 332 are formed in the panel fixing portion 32 of the mounting member 30 in order to fix two types of display panels having different positions for the screw holes 11. Therefore, only by changing the panel fixing holes 331 and 332 to be used, two types of display panels can be attached to the housing 20 with one set of attachment members 30. Therefore, useless cost and work can be reduced.

  Further, the mounting member fixing pieces 24, 24 of the housing 20 are respectively extended from the pair of both end portions of the frame frame portion 21 to the mounting side of the display panel 10, and screw holes 26 are formed in the mounting member fixing pieces 24, 24. It has been drilled. The plate-like housing fixing portion 35 in the attachment member 30 is disposed in parallel with the attachment member fixing pieces 24 and 24 and both are fixed with screws 15, so that the display panel 10 is attached to the housing 20. It is done. Accordingly, the width in the left-right direction of the housing 20 can be narrowed compared to the case where the attachment member fixing pieces 24, 24 are not bent with respect to the frame frame portion 21, and the use of space is prevented from being wasted. be able to.

  Further, in the operation panel 100, the attachment members 30, 30 are easily fixed to the housing 20 by allowing the screws 15 to communicate with the screw holes 26 of the housing 20 and the housing fixing holes 36 of the attachment members 30, 30. can do. Here, if screws or pins are fixed in advance instead of at least one of the screw holes 26 of the housing 20 and the housing fixing holes 36 of the attachment members 30 and 30, the display panel 10 is attached to the attachment members 30 and 30. Is fixed and placed at the mounting position of the housing 20, the protruding screws and pins are caught, making the mounting difficult. Furthermore, if screws and pins are fixed in advance instead of the panel fixing holes 331 and 332 of the attachment members 30 and 30, screws and pins that are not inserted into the screw holes 11 of the display panel 10 become in the way, so there are a plurality of types. It is difficult to project in advance the screws and pins that can be used for the display panel. However, according to the first embodiment, by using a fixing method in which the screws 15 are communicated with the two holes, the mounting members 30 and 30 can be fixed to a plurality of types of display panels while facilitating the mounting of the display panel 10. It is possible to apply. Further, the mounting members 30, 30 have both a function of mounting the display panel 10 to the housing 20 and a function of fixing the inverter 40 that outputs a driving voltage to the backlight of the display panel 10. It is not necessary to use a new member.

  Next, the structure of the operation panel 200 according to the second embodiment of the present invention will be described with reference to FIG. FIG. 4 is an exploded perspective view of the operation panel 200 of the second embodiment. As shown in FIG. 4, the operation panel 200 includes the display panel 10, a housing 220, a pair of attachment members 230 and 230, and an inverter 40. In addition, since the display panel 10 and the inverter 40 are the same as 1st embodiment, the same number is attached | subjected and this description is abbreviate | omitted.

  The housing 220 is a plate-like member having a rectangular shape when viewed from the front, and a rectangular opening 222 for enabling the display panel 10 to be viewed from the front side is formed in a substantially upper half thereof. Then, in accordance with the opening position of the opening 222, screws 226 project toward the back side in the vicinity of the upper two corners and in the vicinity of the center at the left and right ends. The screw 226 corresponds to the “attached part” of the present invention.

  Each of the attachment members 230 and 230 includes a panel fixing portion 232, two support pieces 233 and 233, and two housing fixing portions 235 and 235. The panel fixing portion 232 is a belt-like plate material arranged in parallel with the display panel 10, and a plurality of panel fixing holes 351 into which screws (not shown) for fixing the mounting members 230 and 230 and the display panel 10 are inserted. , 352 are perforated. Specifically, the panel fixing holes 351 formed in the vicinity of both ends in the longitudinal direction of the panel fixing portion 232 are formed to fix the display panel 10 in which the screw holes 11 are formed in the vicinity of the four corners. ing. The panel fixing hole 352 that is drilled closer to the center than the panel fixing hole 351 fixes the display panel in which the drilling position of the screw hole 11 is closer to the center of the end than the drilling position in the display panel 10. Is formed for. Further, from both ends in the longitudinal direction of the panel fixing portion 232, support pieces 233 that support the panel fixing portion 232 at a predetermined distance from the housing 220 are extended toward the front side (the lower side in FIG. 4). Yes. Further, plate-like housing fixing portions 235 and 235 extend outward from the front end portions of the two support pieces 233 and 233 in parallel with the display panel 10. The housing fixing portions 235 and 235 are formed with housing fixing holes 236 into which the screws 226 are inserted at positions facing the screws 226 of the housing 220. Further, the panel fixing portion 232 of the mounting member 230 on the upper side (upper right side in FIG. 4) has two mounting screws 234 for mounting the inverter 40 projecting to the back side at the center. The mounting screw 34 corresponds to the “inverter fixing portion” of the present invention.

  As an example of the mounting procedure, first, the panel fixing hole 351 of the panel fixing portion 232 and the screw hole 11 of the display panel 10 are made to coincide with each other and a screw (not shown) is inserted, and the display panel 10 and the two The attachment members 230 and 230 are fixed. Next, the two mounting screws 234 projecting from the upper mounting member 230 are inserted into the holes 41 of the inverter 40, and then a nut (not shown) is screwed into the mounting screws 234, so that the inverter 40 Is fixed to the mounting member 230. Next, the screw 226 of the housing 220 is inserted into the housing fixing hole 236 of the attachment members 230 and 230, and the nut is screwed. Thereby, the display panel 10 is attached to the housing 220.

  As described above, in the operation panel 200 of the second embodiment, the housing fixing portions 235 and 235 are provided at both ends of the mounting member 230, so that the mounting member 230 is more firmly fixed to the housing 220. can do. Further, since the screw 226 of the housing 220 is inserted into the housing fixing hole 236 of the mounting member 230 and the mounting member 230 is positioned with respect to the housing 220, the fixing work can be performed. There is no need to perform fixing work while holding in place. Therefore, the attachment member 230 can be attached to the housing 220 easily and accurately. Further, since the screw 226 cannot be visually recognized from the front side of the operation panel 200, it is possible to prevent the appearance from being impaired. Of the four panel fixing holes 351 and 352 formed in the panel fixing portion 232 of the mounting member 230, only one type of mounting member 230 can be used by changing the panel fixing holes 351 and 352 to be used. The display panel can be attached to the housing 220. Furthermore, since the attachment member 230 can also fix the inverter 40, it is not necessary to newly use a member for fixing the inverter 40.

  Next, the structure of the operation panel 300 according to the third embodiment of the present invention will be described with reference to FIG. FIG. 5 is an exploded perspective view of the operation panel 300 of the third embodiment. As shown in FIG. 5, the operation panel 300 includes the display panel 10, a housing 220, and four attachment members 330. The display panel 10 is the same as that of the first embodiment, and the casing 220 is the same as that of the second embodiment. In the third embodiment, the inverter 40 is not shown because it is fixed at another position.

  The attachment member 330 in the third embodiment is a rectangular plate member. Then, a pin 334 having a screw hole is projected from the panel fixing portion 333 which is a part of the panel fixing portion 333, and the screw 226 of the housing 220 is inserted into the housing fixing portion 335 located on the opposite side of the panel fixing portion 333. A housing fixing hole 336 into which is inserted is drilled. Then, the mounting member 330 is fixed to the housing 220 by inserting the housing fixing hole 336 of the mounting member 330 into each of the four screws 226 of the housing 220 and screwing nuts (not shown). Next, the display panel 10 can be attached to the housing 220 by inserting a pin 334 into each of the four screw holes 11 of the display panel 10 and screwing a screw (not shown) into the pin 334.

  As described above, in the operation panel 300 of the third embodiment, one mounting member 330 includes one of the four screws 226 protruding from the housing 220 and the four holes drilled in the display panel 10. One of the screw holes 11 is fixed. Therefore, the shape of the attachment member 330 can be reduced as compared with the case where the attachment member 330 is fixed to the plurality of screws 226 and the screw holes 11. Further, since the screw 226 cannot be visually recognized from the front side of the operation panel 300, it is possible to prevent the appearance from being impaired.

  The present invention is not limited to the above-described embodiment, and can be implemented in various forms. First, in the first embodiment, in order to be able to attach two types of display panels having different drilling positions of the screw holes 11 to the housing 20 via one attachment member 30, four panel fixing holes 331 are provided. , 332 are formed in the panel fixing portion 32. However, in order to be able to mount three or more types of display panels, a larger number of panel fixing holes may be formed in the panel fixing portion 32, or only one type of display panel may be supported. The same applies to the attachment member 230 of the second embodiment. In the third embodiment, a plurality of types of display panels having different shapes can be mounted by previously drilling a plurality of mounting members 330 with housing fixing holes 336 into which the screws 226 of the housing 220 are inserted. Good.

  Moreover, the structure for fixing members can be changed suitably. For example, in the second embodiment (see FIG. 4), in order to fix the mounting member 230 to the housing 220, four screws 226 protrude from the housing 220, and these screws 226 are used as the housing of the mounting member 230. Both are fixed by inserting the nut into the fixing hole 236 and screwing the nut. However, the number of screws 226 of the housing 220 is not limited to four, and other members such as pins having screw holes may be used instead of the screws 226. Further, the pin 334 protruding from the attachment member 330 of the third embodiment (see FIG. 5) can be changed to a screw or the like.

It is a front view of the machining center 1 provided with the operation panel 100 to which this invention is applied. It is a disassembled perspective view of the operation panel 100 of 1st embodiment. It is the perspective view which looked at the operation panel 100 of the state with which the display panel 10 was mounted | worn from diagonally right back. It is a disassembled perspective view of the operation panel 200 of 2nd embodiment. It is a disassembled perspective view of the operation panel 300 of 3rd embodiment. It is a perspective view which shows the structure of the back side of the conventional housing | casing 420. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Machining center 10 Display panel 11 Screw hole 15 Screw 20,220 Case 21 Frame frame part 22,222 Opening part 24 Attachment member fixing piece 26 Screw hole 30,230,330 Attachment member 32,232,333 Panel fixing part 34,234 Mounting screw 35, 235, 335 Housing fixing part 36, 236, 336 Housing fixing hole 40 Inverter 100, 200, 300 Operation panel 226 Screw 233 Support piece 331, 332, 351, 352 Panel fixing hole 334 Pin

Claims (8)

A display panel mounting structure for mounting a display panel having a mounting portion fixed to the mounted portion on a housing having a mounted portion for mounting the display panel,
It includes an attachment member that is interposed between the display panel and the housing and fixes both,
The mounting member is
A panel fixing portion fixed to the mounting portion of the display panel;
A display panel mounting structure comprising: a housing fixing portion fixed to the attached portion of the housing. The attached portion of the housing is a screw hole through which a screw is inserted,
The housing fixing portion is provided with a housing fixing hole that is a hole through which a screw for fixing the housing fixing portion and the housing is inserted at a position facing the screw hole of the housing.
The panel fixing portion is provided with a panel fixing hole which is a hole through which a screw for fixing the panel fixing portion and the display panel is inserted at a position facing the mounting portion of the display panel. The display panel mounting structure according to claim 1. The housing is
A plate-like frame frame portion in which an opening for visually recognizing the display panel is formed;
A plate-like mounting member fixing piece extending from each of a pair of both ends of the frame frame portion to the side on which the display panel is mounted, and having the screw holes drilled;
The display panel mounting structure according to claim 2, wherein the housing fixing portion of the mounting member is formed in a plate shape and is fixed in parallel to a plate surface of the mounting member fixing piece. The mounting member is
A plate-like panel fixing portion;
A support piece extending from each of a pair of both ends of the panel fixing portion to the side where the housing is located, and supporting the panel fixing portion at a predetermined distance from the housing;
The support piece consists of the housing fixing part extending in the direction parallel to the panel fixing part from the end opposite to the panel fixing part.
The attached portion of the housing is either a protruding portion or a screw provided with a screw hole that protrudes to the side on which the display panel is attached,
The housing fixing portion is provided with a housing fixing hole, which is a hole through which the attached portion is inserted, at a position facing the attached portion of the housing. 1. A display panel mounting structure according to 1.   5. The panel fixing portion of the mounting member is provided with a plurality of panel fixing holes for fixing a plurality of types of display panels having different positions of the mounting portion. The display panel mounting structure according to any one of the above. The attached portion of the housing is either a protruding portion or a screw provided with a screw hole that protrudes to the side on which the display panel is attached,
The housing fixing portion is provided with a housing fixing hole that is a hole through which the attached portion is inserted,
The mounting member fixes one of the plurality of mounted portions provided in the housing and one of the plurality of mounting portions provided in the display panel, respectively. The display panel mounting structure described.   6. The display according to claim 1, wherein the panel fixing portion of the mounting member includes an inverter fixing portion for fixing an inverter for supplying power to a backlight of the display panel. Panel mounting structure.   A machine tool comprising the display panel mounting structure according to claim 1.

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