JP2001091305A - Measuring instrument case mounting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make fixable a plurality of measuring instrument cases in a close contact state with a panel, using a simple mounting tool. SOLUTION: The measuring instrument case 1 having a flange 5 at a front operating part and an engaging groove 15 at the body 11 is inserted in a panel 7 with its back side inside the panel. A mounting tool 17 is formed to match with the outside shape of the instrument case 1 at a thickness not greater than the flange 5 and fitted to the instrument case 1. The mounting tool 17 has an engaging claw 21 engaged with the engaging groove 15, and holders 23 projecting together from the diagonal corners and a thin elastic frame 29 at the top end of the panel 7. The engaging claw 21 of the mounting tool 17 fitted to the instrument case 1 is engaged with the engaging groove 15 of the body 11 and moved forward while screws 25 inserted in the holders 23 are screwed into them to butt the elastic frame 29 and the screws 25 on the back side of the panel 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting device for an instrument case, and more particularly to an improvement in a mounting device used when a case (instrument case) of instruments such as a controller is attached to an instrument mounting panel.

[0002]

2. Description of the Related Art Conventionally, as this type of mounting device, a flange portion is protruded from an outer periphery of a square column-shaped instrument case on a front operation portion side, and a body portion of the instrument case is inserted into a mounting hole of a panel. The instrument case is attached to the body by attaching the fixture to the back of the panel, engaging the fixture with the body of the instrument case, and clamping the panel between the fixture and the collar. A configuration for fixing to a panel is well known.

[0003]

However, in recent years,
There is a demand for arranging instruments such as controllers closely in the horizontal direction or stacking them closely in the vertical direction. In the mounting device of the above, the mounting device attached to the body of the instrument case hinders, and it is necessary to separate adjacent instruments by the thickness of the mounting device, so that it is difficult to arrange them closely.

[0004] The present invention has been made under such a circumstance, and it is possible to fix a plurality of instrument cases in close contact with a panel. For the purpose of providing.

[0005]

SUMMARY OF THE INVENTION In order to solve such a problem, a mounting device of the present invention includes a collar portion which is inserted into an instrument mounting panel from the rear side and locked by the panel, and A quadrangular prism-shaped instrument case having a first engagement portion formed from the vicinity of the collar portion toward the back side thereof, and formed with a thickness equal to or smaller than the size of the collar portion according to the shape of the outer periphery of the instrument case. A frame-type fixture having a second engagement portion engaged with the first engagement portion and having a fixture fitted from the back side.

In the present invention, it is preferable that the first engaging portion is disposed at a position facing the outer periphery of the instrument case, and the second engaging portion is formed in accordance with the first engaging portion.

Further, according to the present invention, in the above-mentioned mounting fixture, an elastic frame having a plurality of projections abutting on the back surface of the panel is connected at a plurality of positions at the front end of the back surface of the panel. It is also possible to adopt a configuration in which:

Further, the present invention may be configured to provide a holding portion which holds a screw which protrudes from a diagonal position of the mounting tool along the diagonal direction and presses the rear surface of the panel.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are a schematic perspective view, a plan view (partially shown in section), and a side view showing an embodiment of a mounting device according to the present invention.

In FIG. 1, an instrument case 1 formed by molding a synthetic resin such as a polycarbonate resin or a polyacetal resin into a quadrangular prism shape has a flange portion integrally projecting from an outer periphery of a front operation portion 3 forming a part thereof. The instrument case 1 is inserted into the mounting hole 9 of the instrument mounting panel 7 from the rear (back) side body 11, and the collar 5 comes into contact with the front side of the panel 7. I have.

The front operation unit 3 has a rectangular shape which is horizontally long, and a liquid crystal display as the display unit 13 and others are arranged.

Although there is a terminal for external connection at the rear end of the instrument case 1, it is not a main part of the present invention, and the description is omitted. In the body 11 of the instrument case 1, for example, a plurality of sawtooth-shaped engagement grooves 15 as first engagement portions are formed in parallel on the left and right narrow facing side surfaces in parallel with the collar portion 5.
In FIG. 1, the other opposing engaging groove is hidden and cannot be seen.

In FIG. 2 and FIG.
For example, it has a frame plate shape formed of a synthetic resin such as a polycarbonate resin or a polyacetal resin into a cross-sectional shape having the same or slightly larger diameter as the cross-sectional shape of the body 11 of the instrument case 1. It is formed with a thickness substantially equal to or smaller than that of the instrument case 1, and is inserted into the body 11 from the rear side of the instrument case 1 inserted into the mounting hole 9 of the panel 7.

At a position corresponding to the left and right narrow side surfaces of the body 11 of the instrument case 1, the mounting fixture 17 has a pair of opposing engaging pieces 19 extending rearward. Is formed with an engagement claw 21 as a second engagement portion that engages with the saw-shaped engagement groove 15.

As shown in FIGS. 4 to 6, the pair of engagement pieces 19 are formed so as to be slightly shifted to diagonal positions.

The attachment 17 can slide in the front (panel back) direction with the engagement claw 21 of the attachment 17 engaged with the engagement groove 15 of the instrument case 1.
The rearward movement is restricted. If the engagement piece 19 is deformed so as to spread outward and the engagement between the engagement groove 15 and the engagement claw 21 is released, it is possible to retreat.

From two diagonal corners of the fixture 17, cylindrical holding parts 23 are respectively integrally protruded along the diagonal directions, and the holding parts 23 have screws 25. Are screwable and extend in the axial direction of the instrument case 1.

The projecting direction of the holding portion 23 is not an exact diagonal direction. However, as will be described later, even if the same-shaped instrument case 1 is closely arranged in the vertical direction or the horizontal direction, it does not hinder obliquely upward or downward. It is arranged to be located. Further, a split groove 27 extending in the axial direction is formed in the holding portion 23, and a screw 25 having a slightly larger diameter can be screwed in in a self-tapping manner.

On the end face side of the fixture 17 facing the back surface of the panel 7, a thin elastic frame 2 having the same frame shape as the fixture 17 is provided.
9 are integrally connected. The elastic frame 29 is formed so as to protrude integrally at a connecting portion 31 substantially at the center of each of the four sides on the end face side of the mounting tool 17, while sandwiching the corners of the elastic frame 29 between the connecting portions 31. On both sides, a plurality of protrusions 33 projecting toward the rear surface of the panel 7 are formed, and the space between the connecting portions 31 (near a corner) can be elastically deformed.

Next, a method of assembling such an instrument case mounting device will be described. First, as shown in FIG. 1, the instrument case 1 is inserted into the mounting hole 9 of the panel 7 from behind the body 11, and the collar 5 is brought into contact with the surface of the panel 7.

Next, as shown in FIG. 2 and FIG. 3, a mounting member 17 in which a screw 25 is screwed into the holding portion 23 is fitted into the body portion 11 of the instrument case 1 from the back side, and is inserted into the engaging groove 15 of the body portion 11. The fitting 17 is moved forward while the engaging claws 21 are engaged, and the projection 33 of the elastic frame 29 of the fitting 17 is pressed against the back surface of the panel 7. In this state, the corners of the elastic frame 29 of the fixture 17 are slightly deformed by the panel 7 to the rear side.

Then, a screw 25 is screwed into the panel 7 so as to be pressed against the back surface of the panel 7, and the flange 5 of the instrument case 1 and the mounting member 17 are attached.
The panel 7 is elastically sandwiched between the elastic frames 29, and the instrument case 1 is sandwiched by the panel 7 by the press-contact between the flange portion 5 of the instrument case 1 and the screwed holding portion 23.

When the instrument case 1 is detached from the panel 7, the engagement groove 19 is disengaged from the engagement claw 21 by deforming the engagement piece 19 of the attachment 17 so as to expand.
Just pull it out.

Then, as shown in FIG. 7, a plurality of (two) instrument cases 1 are fitted into, for example, horizontally long mounting holes (not visible in FIG. 7) of the panel 7, and the above-mentioned components are inserted therein. The fitting 17 is fitted, and the elastic frame 29 of the fitting 17 is fitted.
Are pressed against the back surface of the panel 7 and screws (not shown in FIG. 8) are screwed into the back surface of the panel 7 so that the plurality of instrument cases 1 are arranged in close contact in the lateral direction.

Further, since the holding portion 23 for holding the screw 25 projects diagonally diagonally, the holding portion 23 does not obstruct the adjacent instrument case 1. Also, as shown in FIG. 8, when a plurality of (two) instrument cases 1 are closely arranged in the vertical direction, the assembling method is the same, and an instrument in which the holding portions 23 holding the screws 25 are stacked. Does not interfere with Case 1.

In the mounting device of the present invention thus constructed, the collar 5 is formed on the front operation portion side of the instrument case 1 and the engaging groove 15 is formed on the opposite side surface of the body portion 11. The case 1 is inserted into the mounting hole 9 of the panel 7 from the rear side, and the collar 5 is brought into contact with the panel 7, and is fitted to the outer periphery of the instrument case and is formed to have the same or smaller thickness as the size of the collar. The tool 17 is provided with an engagement claw 21 that engages with the engagement groove 15 and a holding portion 23 of a screw 25 that integrally projects from a diagonal corner along a diagonal direction. Thin elastic frame 2 connected by connecting portion 31
9 is formed on the front side thereof, and a plurality of projections 33 projecting toward the rear surface of the panel are formed on the elastic frame 29. Therefore, the mounting fixture 17 is fitted into the instrument case 1 inserted into the mounting hole 9 of the panel 7. If the screw 25 of the holding part 23 is screwed in while the engaging claw 21 of the mounting tool 17 is engaged with the engaging groove 15 of the body part 11, the protrusion 33 of the elastic frame 29 and the screw 25 Abuts against the back surface of panel 7, and instrument case 1 is elastically held by panel 7.

Moreover, the fixture 17 is formed with a thickness equal to or smaller than the dimension of the flange portion 5 of the instrument case 1, and
7 and 8, the holding portion 23 does not interfere with the adjacent instrument case 1 and closely contacts in the horizontal or vertical direction, as shown in FIGS. 7 and 8. There are advantages that can be done.

Further, since one frame-shaped mounting member 17 can be held simply by fitting it into the body 11 of the instrument case 1, not only the configuration is simple, but also the mounting and dismounting becomes simple, and the price is low. It is cheap.

Further, the engaging groove 15 formed in the body 11 of the instrument case 1 is formed at a diagonal position, and the engaging claw 21 is arranged at the diagonal position in accordance with the diagonal position. The instrument case 1 is stably engaged with the body 11 and the attachment of the instrument case 1 to the panel 7 is also stabilized.

Further, the elastic frame 2 abutting on the panel 7
Since the portion 9 can be deformed between the connecting portions 31 with the fixture 17, the elastic frame 29 abutting on the back surface of the panel 7 is easily elastically deformed and abuts, making it difficult to damage the panel 7 and the like. Since the protrusions 33 are uniformly distributed on the elastic frame 29,
Also from this point, the elastic frame 29 is stably abutted on the back surface of the panel 7.

In the instrument case mounting device of the present invention, the object of the present invention can be achieved to some extent by using the mounting device 17 having the elastic frame 29 and omitting the holding portion 23. The holding part 23 is provided on the fixture 17 and the screw 2
By screwing in the instrument case 5, the instrument case 1 can be more firmly attached to the panel 7.

In the above-described configuration, the engaging groove 15 formed in the body 11 of the instrument case 1 and the engaging claw 21 of the fitting 17 engaged with the groove are not limited to the above. While the forward movement is possible, the object of the present invention can be achieved by providing the first and second engaging portions for restricting the backward movement.

[0033]

As described above, according to the mounting device of the present invention, the collar portion and the first engaging portion locked to the mounting panel are formed in the instrument case, and are fitted to the outer periphery of the instrument case. A second engaging portion to be engaged with the first engaging portion of a frame-shaped mounting member formed with a thickness equal to or smaller than the size of the rugged portion and fitted to the outer periphery of the instrument case from the back side; Is formed, it is possible to hold the instrument case on the panel with one mounting tool, and it is also possible to fix a plurality of instrument cases to the panel in a state of being closely contacted in the vertical or horizontal direction. In addition, the mounting and dismounting operations are simple, and the price is low. Further, in a configuration in which the first engagement portion is disposed at a position facing the outer periphery of the instrument case and the second engagement portion is formed in accordance with the first engagement portion, the mounting member is stably engaged with the instrument case. There are advantages to be combined. further,
In a configuration in which an elastic frame body having a plurality of projections abutting on the back surface of the panel is connected to the mounting device at a plurality of locations, the mounting device abutting on the back surface of the panel can be elastically deformed, and the panel and the like Hard to damage. Furthermore, in a configuration in which a holding portion that holds a screw that protrudes from a diagonal position of the mounting fixture along the diagonal and presses the back side of the panel is provided, in addition to the above-described effects, the instrument case is firmly attached to the panel. Can be fixed to

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an embodiment of a mounting device according to the present invention.

FIG. 2 is a plan view (showing a cross section of a portion A in FIG. 3) of the mounting device of FIG. 1;

FIG. 3 is a side view of the mounting device of FIG. 1;

FIG. 4 is a perspective view of a mounting tool in FIG. 1;

FIG. 5 is a perspective view of a mounting tool in FIG. 1;

FIG. 6 is a front view of the mounting tool in FIG. 1;

FIG. 7 is a perspective view illustrating an example of use of the instrument case mounting device of the present invention.

FIG. 8 is a perspective view illustrating another example of use of the instrument case mounting device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Instrument case 3 Front operation part 5 Collar part 7 Panel 9 Mounting hole 11 Body part 13 Display part 15 Engagement groove (1st engagement part) 17 Fixture 19 Engagement piece 21 Engagement claw (2nd engagement) Part) 23 holding part 25 screw 27 split groove 29 elastic frame 31 connecting part 33 protruding part

Claims (4)

[Claims] 1. A collar which is inserted into an instrument mounting panel from the rear side and is locked to the panel, and a first engaging portion formed from the vicinity of the collar toward the rear side. A quadrangular prism-shaped instrument case, and a frame-shaped fixture formed on the outer periphery of the instrument case with a thickness equal to or smaller than the size of the flange portion,
A mounting device having a second engagement portion engaged with the first engagement portion and fitted from the rear side. 2. The instrument according to claim 1, wherein the first engagement portion is disposed at a position facing the outer periphery of the instrument case, and the second engagement portion is formed in accordance with the first engagement portion. Case mounting device. 3. The mounting device according to claim 1, wherein an elastic frame body having a plurality of dispersed projections abutting on the back surface of the panel is connected at a plurality of locations at a front end on the back surface side of the panel.
Or the instrument case mounting device according to 2. 4. The instrument case according to claim 1, wherein the attachment has a holding portion that protrudes along a diagonal position from the diagonal position and holds a screw that presses a back side of the panel. Mounting device.