JP2003298252A - Mounting structure of electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily mount an electronic device on both of a supporting rail and a supporting board. <P>SOLUTION: On the backside of a base pedestal 29 of the main body 27 of the electronic device, a concave groove 35, in which a supporting rail 33 is inserted, and engagement protuberances 37, 39, which overhang the concave groove 35, are formed. A supporting groove 45 are formed from the lower edge of the base pedestal 29 to the concave groove 35, and a first stopper 47 is inserted therein freely slidable against the concave groove 35. The first stopper 47 is locked at a position where its top edge 47a engages the supporting rail 33 in the concave groove 35. A supporting groove 63 is formed on the upper side region of the base pedestal 29 above the concave groove 35, and a second stopper 65 is slidably inserted therein. The first and second stoppers 47, 65 respectively have tapped holes 57, 75 on respective edges that are opposite to the top edges 47a, 65a, and are also locked when the tapped holes 57, 75 are slid to positions protruding from the base pedestal 29. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device mounting structure, and more particularly, to an electronic device mounting structure in which an electronic device such as a controller for controlling an object to be controlled is supported by a support rail on its rear side. Regarding

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 8, electronic devices such as controllers are often used by supporting them on a support rail called a DIN rail on the back side thereof.

That is, a flat groove 7 is formed on the back side of the base 1 of the electronic equipment body 5 formed by covering the insulating base 1 with the case 3, and the flat groove 7 is formed so as to cross the base. A pair of engaging projections 9 and 1 from one edge (upper side in the figure) facing the
1 are projected at intervals, and similarly, a support groove 13 having a convex cross section is formed on the rear surface side of the base 1 and extends from the lower end to the concave groove 7, and a fastener having a convex cross section is provided in the support groove 13. 15 is slidably fitted, a flat elongated support rail 17 bent and formed in a trapezoidal cross section is fitted in the groove 7, and one side of engagement sides 19 and 21 formed on both sides of the support rail 17 is fitted. The engaging side 19 is engaged with the pair of engaging projections 9 and 11 described above, and the tip of the fastener 15 is engaged with the other engaging side 21.

The support rail 17 is fixed by a fixing means (not shown), and the fastener 15 is a rectangular window portion 2.
3, an elastic locking piece 25 is provided so as to project inside, and in a state of engaging with the engaging side 21 of the support rail 17, a locking concave portion formed on the bottom surface of the support groove 13 (hidden and hidden in FIG. 8). Absent.)
Locked in, the movement is temporarily locked.

When the electronic device body 5 is removed from the support rail 17, the fastener 15 is retracted away from the support rail 17 and disengaged, as indicated by the broken line in FIG.
The engagement with the pair of engaging projections 9 and 11 is released.

[0006]

However, in the above-described mounting structure for an electronic device, the engaging sides 19 and 21 on both sides of the support rail 17 are sandwiched between the pair of engaging projections 9 and 11 and the fastener 15. Since the structure is engaged and fixed, it is suitable for a structure in which a large number of electronic device main bodies 5 are detachably fixed to the support rail 17, but one or a few electronic device main bodies 5 are flat such as a support plate. It is difficult to fix it directly when it is fixed to another support member.

Although not shown in the figure, it is conceivable that a screw hole is formed in the base 1 of the electronic equipment main body 5 to the rear side and the screw is fixed to the support plate, but in the case of actual implementation, from the base 1 After the case 3 is removed and screwed, it is necessary to cover the base 1 with the case 3 again, which is very complicated.

The present invention has been made under such circumstances, and it is possible to detachably fix an electronic device to a support rail and also to detachably fix a flat support member such as a support plate. The purpose is to provide a mounting structure that is simple in structure and operation.

[0009]

In order to solve such a problem, the present invention provides an electronic equipment main body and an engagement protrusion formed on the back surface of the electronic equipment main body, and When the back surface is brought into contact with a long support rail,
A plurality of engaging protrusions that are engaged with each other at intervals on a first engaging side formed on one side in the longitudinal direction of the support rail, and are parallel to the first engaging side on the other side of the supporting rail. A first fastener that is locked at an engagement position where a tip is engaged with a second engagement side formed on the first engagement side, and is at a predetermined position where engagement is disengaged away from the second engagement side. A first fastener slidably supported by the main body of the electronic device so as to be displaced and locked, and a tip of the first fastener facing the first fastener with the support rail interposed between the engaging protrusions. A second fastener that is slidably supported by the electronic device body so as to be locked in a predetermined position and locked in a predetermined position,
It is equipped with.

The first and second fasteners are
A screw hole is provided at an end opposite to the tip toward the support rail, and when locked at those predetermined positions apart from the support rail, the screw hole is positioned so as to project from the electronic device body. It

Further, in the present invention, the first and second fasteners each have an elastic locking piece that is pressed against the back surface of the electronic device body, and the electronic device body has the first fastener. A first locking recess for locking and locking the locking piece when the tool is at a position for engaging the second engagement side;
Also, it is preferable to have a configuration in which each second locking recess has a second locking recess that locks and locks each locking piece when the second fastener is in a position to project the screw hole.

Further, in the present invention, it is preferable that the first and second fasteners have the same shape.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a form of a mounting structure for an electronic device according to the present invention.

In FIG. 1, an electronic device main body 27 constitutes a controller or other electronic device for controlling an object to be controlled, and an insulating base 29 formed by molding a synthetic resin into a vertically long block plate is placed vertically. The base 29 is constructed by covering a box-shaped case 31 made of synthetic resin, and the front side is an operation panel, but it is hidden and invisible in the figure.

Inside the electronic equipment main body 27, an electronic circuit board and the like are fixed to a base 29 and a case 31,
Since it is not an essential part of the present invention, its explanation and illustration are omitted.

A flat concave groove 35 having a width dimension slightly wider than a width dimension of a support rail 33, which will be described later, is formed in the middle of the back surface of the base 29 in the vertical direction so as to laterally traverse the base 29. Has been done.

A pair of engaging projections 37, 39 are spaced from each other from one edge (upper side in the drawing) facing the groove 35,
The protrusions are integrally projected so as to protrude above the groove 35 and to be spaced a little distance from the bottom of the groove 35.

A long support rail 33, which is formed by bending and shaping a slender metal plate into a flat trapezoidal cross section, is fitted in the recessed groove 35. Both sides of the support rail 33 extend in the longitudinal direction. Of the first and second engaging sides 41, 43 formed in parallel along each other, the engaging protrusions 37, 39 engage with the first engaging side 41 on one side, as shown in FIG. 2A. The support rail 33 is held down.

A support groove 45 is recessed from the lower end of the base 29 in an area below the recessed groove 35 on the back side of the base 29 and extending from the area sandwiched by the engaging projections 37 and 39. Groove 3
5, the support groove 45 has a first fastener 47.
Is slidably fitted in the groove 35.

The support groove 45 is formed to have a convex cross section as shown in FIGS. 3 and 4, and insertion grooves 49 are formed on both sides in the longitudinal direction thereof from the lower end of the base 29 to the concave groove 35. It is formed to the vicinity.

The first fastener 47, as shown in FIG.
The support groove 45 has the same convex cross section as that of the support groove 45, and is formed of a synthetic resin in a long and narrow plate shape. The both sides of the short side have insertion pieces 51 extending in the longitudinal direction. As it is inserted into the groove 49, it is fitted into the support groove 45 from the lower side of the base 29 and is slidable.

As shown in FIGS. 1 and 5, the first fastener 47 has a rectangular window portion 53 formed therethrough, and is directed from the inner wall far from the tip 47a to the inner wall near the tip 47a. It has an arcuate elastic locking piece 55 protruding so as to support it in a cantilever manner, and the tip 55a of the locking piece 55 slightly projects from the lower surface of the first fastener 47. When fitted in the support groove 45, the locking piece 55 elastically presses the bottom portion thereof.

The first fastener 47 has a screw hole 57 penetratingly formed at an end portion (lower end portion in the figure) opposite to the tip end 47a.

When the first fastener 47 is fitted into the support groove 45 and the tip 47a is slid so as to project into the groove 35, the tip 47a thereof is, as shown in FIGS.
Is engaged with the second engaging side 43 to hold down the support rail 33.

At the bottom of the support groove 45, a first fastener 47 is provided.
2B, 4 and 6, the locking piece 55 is locked when the tip 47a of the first rail 47a is engaged with the second engaging side 43 of the support rail 33. A first locking hole 59 for temporarily locking the movement of the tool 47 is formed, and the first fastener 47 is retracted so that its tip 47a.
And the second engagement side 43 is disengaged,
A second locking hole 61 that locks the locking piece 55 and temporarily locks the movement of the first fastener 47 is formed near the first locking hole 59.

An upward slope 60 is formed from the first locking hole 59 to the second locking hole 61, and the locking piece 55 of the first fastener 47 is inserted from the second locking hole 61 side. First locking hole 59
It is difficult to slide to the side.

The first fastener 47 is retracted to the locking piece 55.
Has a size and a positional relationship such that the screw hole 57 is sufficiently projected from the lower end of the base 29 in a state where the screw hole 57 is locked in the second locking hole 61.

On the rear surface side of the base 29, a support groove 63 is provided from the upper end of the base 29 in the area sandwiched by the engaging projections 37 and 39 in the upper area of the concave groove 35, as shown in FIG. The groove 35 is formed, and the second fastener 65 is slidably fitted in the groove 35.

As shown in FIG. 4, the support groove 63 is formed to have a convex cross section like the support groove 45 (see FIG. 3), and insertion grooves 67 are formed on both sides in the longitudinal direction. Groove 35
It is formed to the vicinity without reaching.

The second fastener 65, as shown in FIG.
The same material as the first fastener 47 is molded into the same shape,
Inserting pieces 69 formed on both sides thereof along the longitudinal direction are inserted into the inserting grooves 67 of the base 29, and are slidably fitted in the supporting grooves 63.

Like the first fastener 47, the second fastener 65 has a window 71 and a locking piece 73 (see FIG. 5), and the tip 73a of the locking piece 73 is the second fastener. It is in a state of slightly projecting from the lower surface to 65, and its bottom portion is elastically pressed into contact with the support groove 63 in a state of being fitted thereto.

The second fastener 65 has a screw hole 75 penetratingly formed at an end portion (upper end portion in the drawing) opposite to the tip 65a.

When the second fastener 65 is fitted into the support groove 63 and the tip 65a is slid so as to project into the concave groove 35, as shown in FIG. It engages with the engaging side 41 and holds down the support rail 33.

At the bottom of the support groove 63, there is a second fastener 65.
When the front end 65a of the first engaging edge 41a is engaged with the first engaging side 41 of the support rail 33, the locking piece 73 is locked to temporarily lock the movement of the second fastener 65. Locking hole 7
7 is formed and the second fastener 65 is retracted,
When the tip 65a is disengaged from the first engagement side 41, the engagement piece 73 is engaged and the second fastener 6 is released.
The second locking hole 79 for temporarily locking the movement of
Is formed near the locking hole 77.

An upward slope 78 is formed from the first engaging hole 77 to the second engaging hole 79, and the engaging piece 73 of the second fastener 65 is provided from the second engaging hole 79 side. First locking hole 77
It is difficult to slide to the side.

Moreover, the second fastener 65 also has the locking piece 73.
Has a size and a positional relationship such that the screw hole 75 is sufficiently projected from the upper end of the base 29 when the screw hole 75 is locked in the second locking hole 79.

The first and second fasteners 47, 65 are
The tips 55a, 73a of the locking pieces 55, 73 have a taper, and by applying a certain force or more, the first locking holes 59, 77 side and the second locking holes 61, 79 side It is easier to slide between.

Next, an example of use of the above-described mounting structure for electronic equipment according to the present invention will be described. First, a case where the electronic device body 27 is supported by the support rail 33 will be described.

In a state in which the first fastener 47 is pulled down and the locking piece 55 is locked in the second locking hole 61 and locked in the retracted position, the first engaging side 41 of the support rail 33. 1
The support rail 33 is fitted into the concave groove 35 so as to be inserted under the pair of engaging projections 37 and 39.

After that, the first fastener 47 is pulled upward, and the tip 47a is engaged with the second engaging side 43 of the support rail 33 and locked at the engaging position.
Are engaged with the support rail 33 at three points of the pair of engaging projections 37, 39 and the first fastener 47, and the electronic device body 27 is supported by the support rail 33.

Even if the second fastener 65 is pulled down and the locking piece 73 is locked in the first locking hole 77 and locked at the engaging position, it can be pulled upward. The locking piece 55 may be locked in the second locking hole 61 and locked in the retracted position. If the second fastener 65 is pulled down and engaged with the support rail 33, the electronic device body 27 will be reliably supported by the support rail 33.

Next, the case where the electronic device body 27 is supported by the support plate will be described with reference to FIG. In this case, as shown in FIG. 7, the first fastener 47 of the electronic device main body 27 is pulled down, the locking piece 55 is locked in the second locking hole 61 and locked in the retracted position, The second fastener 65 is pulled upward, the locking piece 73 is locked in the second locking hole 79, and locked in the retracted position (see the broken line in FIG. 1).

In this state, the first and second fasteners 47,
The screw holes 57 and 75 provided at the end portions of the 65 are positioned at positions projecting from the base 29, and the first and second fasteners 47 and 65 are attached to the support plate 83 provided with the attachment holes 81 in advance. The screw holes 57, 75 are aligned with the mounting holes 81, and the first and second fasteners 47, 65 are brought into contact with the support plate 83,
The back side of the electronic device body 27 is overlaid on the support plate 83.

After that, the screw 85 is passed from the screw holes 57, 75 side of the first and second fasteners 47, 65 to the mounting hole 81, and the nut 87 is tightened on the back surface side of the support plate 83. Are fixed to the support plate 83.

To remove the electronic device body 27, the nut 87 may be loosened and the screw 85 may be pulled out.

As described above, the mounting structure of the present invention is formed so as to traverse the flat recessed groove 35 into which the support rail 33 is fitted, on the back side of the base 29 of the electronic device body 27, and the recessed groove 35 is formed.
A pair of engaging projections 37 and 39 are provided at one edge facing the base plate at intervals so as to project above the groove 35, and the base 2
A support groove 45 is formed from the lower end of 9 to the concave groove 35, and a first fastener 47 is slidably fitted in the support groove 45 with respect to the concave groove 35, and a window portion 53 is formed in the first fastener 47. An elastic locking piece 55 is projectingly provided so as to be cantilevered in the window portion 53, and the tip 47a of the first fastener 47 projects into the concave groove 35 and the second engaging side 43 of the support rail 33. A first locking hole 59 for locking the locking piece 55 when it is engaged with the base 29, and the first fastener 47 retracts to move the tip 4
A second locking hole 61 for locking the locking piece 55 is formed in the base 29 when the engagement between the 7a and the second engagement side 43 is disengaged.

On the rear surface side of the base 29, a support groove 63 is formed from the upper end of the base 29 to the concave groove 35 in a region sandwiched by the engaging projections 37 and 39 on the upper side of the concave groove 35. Then, the second fastener 65 is slidably fitted in the support groove 63, and the first fastener 47 is attached to the second fastener 65.
Similarly to the above, a window portion 71 and a locking piece 73 are provided, and the base 29 thereof has a tip 65a of a second fastener 65 fitted in the support groove 63.
And the second fastener 63 when the slide piece is slid so as to project into the groove 35.
The second engaging hole 79 is formed so that the engaging piece 73 engages when the first engaging side 41 is disengaged by retreating.

Further, the first and second fasteners 47, 65
Is provided with screw holes 57 and 75 at the ends opposite to the tips 47a and 65a thereof, and the locking pieces 55 and 73 are also provided.
Is engaged with the second engaging holes 61, 79, the screw holes 57, 75 are positioned at positions projecting from the base 29, that is, the electronic device body 27, respectively.

Therefore, the support rail 33 is fitted in the concave groove 35 to be engaged with the engaging projections 37 and 39, and the first fastener 47.
By moving the support rail 33 forward with respect to the support rail 33.
When the first fastener 47 is engaged with the first locking hole 59 and temporarily locked in the engagement position, the electronic device is attached to the support rail 33. The main body 27 can be supported.

On the other hand, if the first and second fasteners 47 and 65 are slid up and down and engaged with the second locking holes 61 and 79 and locked in the retracted position, the first and second fasteners are locked. Fastener 47,
The screw holes 57 and 75 of 65 are positioned so as to project from the base 29, and the electronic device main body 27 can be screwed to the flat support plate 83 with the screw 85.

Moreover, if the second fastener 65 is slid to engage with the first locking hole 77 and temporarily locked at the engagement position, the engagement with the support rail 33 becomes possible.
The electronic device body 27 can be reliably supported by the support rail 33.

Further, since the first and second fasteners 47, 65 are formed in the same shape, parts management is easy and contributes to cost reduction. However, in the present invention, the first and second fasteners 47 and 65 do not necessarily have to have the same shape.

By the way, the second fastener 65 has a base 29.
It is not necessary to slidably support the screw hole 75, and a configuration in which the screw hole 75 is fixedly formed at a position protruding from the base 29 is also possible.

Further, according to the present invention, the case 3 is mounted on the base 29.
The present invention is not limited to the electronic device main body 27 configured to cover 1 and can be applied to known electronic devices.

[0055]

As described above, the mounting structure for an electronic device according to the present invention is such that, when a long support rail is brought into contact with the rear surface of the electronic device main body, the support rail has one side in the longitudinal direction thereof. A plurality of engaging protrusions that are engaged with the first engaging side formed at intervals, and a tip end that engages with a second engaging side formed on the other side of the support rail. The first fastener slidably supported by the electronic device body so that the electronic device body is locked at the engagement position and is displaced and locked at a predetermined position where the engagement is disengaged from the second engagement side. And a second fastener that is slidably supported with the tip facing the first fastener that sandwiches the support rail between the engaging protrusions. And the first
The second fastener is provided with a screw hole at the end opposite to the tip toward the support rail, and when the screw hole is displaced and locked at a position away from the support rail, the screw hole has the screw device main body. It is configured to be positioned at a position protruding from. Therefore, the electronic device can be removably fixed to the support rail by the engagement protrusion and the first fastener, and also can be removably fixed to the flat support member such as the support plate by the first and second fasteners. The configuration and mounting operation are simple. For example, each of the first and second fasteners is provided with an elastic locking piece that is pressed against the back surface of the electronic device body, and the first fastener is engaged with the second engagement member by the second engagement. A first locking recess is provided which locks the locking piece to lock the locking piece in the engaging position when it is in the position of engaging the side, and the first and second fasteners fix the screw hole. It is preferable to provide second locking recesses for locking the locking pieces to lock the locking pieces in the screwing position when in the projecting position. When the first and second fasteners have the same shape, the components that have been conventionally used can be shared, so that the manufacturing cost can be reduced and the components can be easily managed.

[Brief description of drawings]

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

2 is a sectional view of the mounting structure shown in FIG. 1 (A is II in FIG. 1)
A cross section between A-IIA and B is a cross section between IIB and IIB in FIG. 4.

FIG. 3 is a bottom view of a main part of the mounting structure shown in FIG.

4 is a perspective view of the mounting structure shown in FIG. 1. FIG.

5 is a plan view A and a side view B showing first and second fasteners used in the mounting structure shown in FIG. 1. FIG.

FIG. 6 is a cross-sectional view explaining an example of use of the mounting structure shown in FIG.

FIG. 7 is a cross-sectional view illustrating an example of use of the mounting structure shown in FIG.

FIG. 8 is a perspective view showing a conventional mounting structure for an electronic device.

[Explanation of symbols] 1,29 base 3, 31 cases 5,27 Electronic device body 7,35 concave groove 9, 11, 37, 39 Engaging protrusion 13, 45, 63 Support groove 15 fasteners 17,33 Support rail 19, 21 Engagement side 23, 53, 71 Window 25, 55, 73 Locking piece 41 First engagement side 43 Second engagement side 47 First fastener 47a, 55a, 65a, 73a Tip 49, 67 Insert groove 51, 69 Insert 57, 75 screw holes 59, 77 First locking hole 60,78 slope 61, 79 Second locking hole 65 Second fastener 81 Mounting hole 83 Support plate (support member) 85 screws 87 nuts

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yasuhiko Sekiya             1164 Sano, Yachiyo-cho, Yuki-gun, Ibaraki Prefecture Rika Kogyo             Ibaraki Office Co., Ltd. F-term (reference) 4E353 AA17 AA18 AA21 BB02 BB03                       BB06 BB11 CC25 CC32 CC33                       DD06 DD08 DD15 DD16 DR12                       DR19 DR24 DR34 DR52 DR57                       GG09 GG21                 4E360 AB12 AB18 AB20 AB23 ED03                       ED12 ED17 ED27 GA06 GA53                       GB93

Claims (3)

[Claims] 1. An electronic device main body and an engagement protrusion formed on a back surface of the electronic device main body, wherein when the back surface of the electronic device main body is brought into contact with an elongated support rail, A plurality of engaging projections formed at one side in the longitudinal direction of the support rail and spaced apart from each other, and parallel to the first engaging side on the other side of the support rail. A first fastener that is locked at an engagement position where a tip is engaged with a second engagement side formed on the first engagement side, and is at a predetermined position where engagement is disengaged away from the second engagement side. A first fastener that is slidably supported by the electronic device main body so as to be displaced and locked, and a tip that faces the first fastener between the engaging protrusion and sandwiches the support rail. It can be slid on the electronic device body so that it is locked in place and locked in place. A second fastener supported on the support rail, wherein the first and second fasteners each have a screw hole at an end opposite to the tip facing the support rail, A mounting structure for an electronic device, wherein the screw hole is positioned at a position protruding from the electronic device main body when locked in each of the predetermined positions apart from each other. 2. The first and second fasteners have elastic locking pieces that are pressed against the back surface of the electronic device body, and the electronic device body has the first fasteners. Second
A first locking recess for locking and locking the locking piece and a position where the first and second fasteners project the screw hole when the locking hole is engaged with the engaging side. The mounting structure for an electronic device according to claim 1, further comprising second locking recesses that lock and lock the locking pieces. 3. The mounting structure for an electronic device according to claim 1, wherein the first and second fasteners have the same shape.