JPH064619Y2 - Fixed structure of control unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to a fixing structure of a control device unit for mounting a control device such as a display on a panel surface.

(b) Conventional technology A control device such as a display is attached to the operation panel of the control device. The number of such control devices to be installed in one place is different, and in particular, the number of digits of the numerical value to be displayed differs depending on the display content on the display. So, for example, if it is a numerical display, the display that displays a one-digit numerical value is unitized,
This is installed continuously on the panel surface by the required number of digits. As shown in FIG. 4, the holes 42 are formed on the respective side surfaces of the control device unit 41 which face each other.
And a protrusion 43 are provided, and the protrusion 43 of one control device unit 41 is adjacent to the hole 4 of another control device unit 41.
The control device units 41 are connected to each other by engaging with 2. The end plates 45 are attached to the side surfaces of the control device units 41 connected in this way, which are located at both ends. Pressing members 46 are formed on the upper and lower portions of the end plate 45. The pressing member 46 is formed so as to vertically project at the upper and lower ends of the end plate 45, and is elastically deformable downward and upward, respectively. From the above, the control device unit 41 connected to the end plate 45
With inserting it from the front into the opening of the panel not shown,
The edge of the panel is sandwiched between the front plate 44 and the pressing member 46, and the control device unit 41 is fixed to the panel.

However, in many cases, about 8 to 10 control device units 41 are connected, and when connecting a plurality of control device units 41 in this way, dimensional errors of each control device unit 41 are accumulated,
As a whole, a large cumulative error occurs. For this reason, the control device unit located at the central portion of the control device unit connected by vibration or the like may project to the front surface of the panel, which causes a problem of falling off. In order to solve this, for example, in the light emitting display device disclosed in Japanese Utility Model Laid-Open No. 59-73784, a spring plate is provided in each unit so that a panel is provided between the front plate and the spring plate in each control device unit. I'm trying to pinch. With this, even when a large number of units are connected, each unit can be fixed to the panel, and it is possible to prevent the protrusion from the front due to the accumulated error and the drop due to vibration.

(c) Problems to be Solved by the Invention However, in the control panel, the control device unit may be removed at the time of work such as specification change, maintenance and repair, and in such a case, a leaf spring or the like is attached to each control device unit. If the fixing member is provided, it is necessary to release the sandwiched state of the panel by simultaneously pressing the leaf spring for all of the plurality of connected control device units. In this case, it is not easy to release the sandwiched state of the channels for all the connected units at the same time, and there is a problem that the removal work becomes complicated. In addition, it is possible to weaken the elastic force of the leaf spring, etc. to avoid the complexity of the removal work, but in this case the fixed state cannot be maintained firmly and it is prevented from falling off from the control panel due to vibration etc. There was a problem I couldn't handle.

The object of the present invention is to maintain the fixed state of all control equipment units robustly by attaching a detachable member to any one of a large number of connected control equipment units, and at the An object of the present invention is to provide a fixing structure for a control device unit that allows the control device unit to be easily removed from the panel by removing the member and then pressing the elastic member of the end plate to release the sandwiched state of the panel.

(d) Means for Solving the Problems The control device unit fixing structure of the present invention is the control device unit fixing structure, wherein a plurality of control device unit fixing structures are inserted into the opening of the panel from the front surface of the panel. In the upper and lower parts of the control device unit, there are recesses formed on the upper and lower surfaces, a pair of upper and lower protrusions that are fitted onto the control device unit from the rear side thereof, and are fitted in the upper and lower recesses in the rearward direction of the control device unit. It is characterized in that a stopper having a screw portion vertically opposed to the back surface of the panel is provided.

(e) Action In the present invention, the control device unit is provided with a stopper that can be externally fitted from behind. The stopper is provided with a pair of upper and lower convex portions and a screw portion that vertically opposes the back surface of the panel in the upper and lower portions of the control device unit. The pair of upper and lower protrusions are fitted in the rearward direction in the respective recesses formed on the upper and lower surfaces of the control device unit. Therefore, when the stopper is externally fitted to the control device unit, the convex portion fits into the concave portion. When the screw of the screw portion is screwed in this state, the tip of the screw abuts on the back surface of the panel, and the convex portion is fitted into the concave portion in the rearward direction. At this time, a force in the insertion direction acts on the control device unit via the stopper.

(f) Embodiment FIG. 1 is an assembly view showing a fixing structure of a control device unit according to an embodiment of the present invention.

Holes 2 and protrusions 3 are formed at four upper and lower positions on the side surfaces of the unit body 1 which face each other. Also,
Engagement holes 7 are provided at the four corners of one side surface, and projections (not shown) are similarly provided on the other side surface. By engaging these protrusions with the engaging holes 7 and engaging the protrusions 3 with the holes 2, one unit body 1 is connected to another adjacent unit body. A front plate 4 is formed on the front surface of the unit body 1. The front plate 4 protrudes above and below the unit body 1 in a flange shape. Further, recesses 5 are formed at two locations at the upper and lower corners of one side surface. The recess 5 includes a hole 5a. A filter 6 is attached to the front surface of the unit main body 1, and a substrate having a 7-segment numerical display LED and the like are housed inside.

The stopper 11 which is externally fitted to the unit body 1 configured as described above from the rear is formed in a substantially U-shape with a resin material. At the end of the horizontal member 11a of the stopper 11, a convex portion 12 and a screw portion 13 are formed in a pair in the vertical direction. The shape of the convex portion 12 is such that it is fitted in the concave portion 5 of the unit main body 1 in the rearward direction. Further, screws 14 and 15 are screwed into the upper and lower screw portions 13. further,
A notch 16 is formed in the center of the vertical member of the stopper 11 so that a sufficient vertical elastic force is applied to the pair of horizontal members 11a.

FIG. 2 is a view showing a state where the control device unit is fixed to a panel, and FIG. 3 is an enlarged view showing a state of a main part.

Many unit main bodies 1 are connected in the same manner as in the state shown in FIG. 4, and end plates are attached to the unit main bodies located at both ends. The unit main body 1 shown in FIG. 2 is located in the middle portion of a large number of connected units.

When the unit body 1 is inserted from the front surface of the panel 21, the movement of the unit body 1 is stopped due to the contact between the panel 21 and the front plate 4. At this time, the panel 21 is sandwiched between the front plate 4 and the pressing members of the end plates mounted on the unit bodies at both ends (not shown), and the connected control device unit is held by the panel 21. In this state, when the stopper 11 is externally fitted to the unit main body 1 located at the intermediate portion from the rear, the convex portion 12 is fitted in the concave portion 5. At this time, the stopper 11 is held by the unit body 1. Further, when screws 14 and 15 are screwed into the upper and lower screw portions 13 and the tips of the screws 14 and 15 are brought into contact with the back surface of the panel 21, the reaction force of this contact causes the screws 14 and 15 and the stopper 11 to contact the rear surface of the panel 21. The force in the direction of arrow A shown in FIG. 3 acts,
This force is transmitted to the main body 1 having the concave portion 5 via the convex portion 12. As a result, the front plate 4 is attached to the panel 21.
While being pressed against the front surface of the panel 21, the tips of the screws 14 and 15 abut on the back surface of the panel 21, and the panel 21 is reliably sandwiched between the front plate 4 and the screws 14 and 15.

As described above, according to this embodiment, the unit body 1
When the stopper 11 is fitted onto the
The hole 5a is inserted into the unit body 1, and the horizontal portion 11a of the stopper 11 is pressed against the upper and lower surfaces of the unit body 1 by elastic force. As a result, the stopper 11 can be temporarily fixed to the unit body 1, and the screwing operation of the screws 14 and 15 can be performed extremely easily with both hands. When removing the unit main body 1 from the panel 21, loosen the screws 14 and 15 from the threaded portion 13 and push the 0 stopper 11 to the panel side,
Press b inward. Then, the stopper 11 is removed from the unit body 1. As a result, a plurality of control device units connected to each other are fixed to the panel 21 only by the end plates at both ends. Can be removed on the front side.

(g) Effect of the Invention According to the present invention, after inserting a plurality of connected control device units into a panel, a stopper is externally fitted to the rear of any control device unit that has a risk of falling off. The panel can be clamped by the tip of the screw and the control device unit by screwing the screw of the screw part formed on the stopper, and the control device unit can be securely prevented from falling off due to vibration after mounting. You can Also, when removing the control device unit from the panel for maintenance, repair, or specification change work, loosen the screw and remove the stopper from the control device unit to remove it from the control device unit. Since the fixed state of the positioned unit is released, all the control device units can be removed from the panel very easily.

[Brief description of drawings]

FIG. 1 is an assembly view showing a fixing structure of a control device unit according to an embodiment of the present invention, FIG. 2 is a side view showing a fixed state of the control device unit, and FIG. 3 is a fixed state of the control device unit. It is an enlarged view which shows the detail of a principal part. Further, FIG. 4 is a view showing a conventional fixing structure of a control device unit. 1 ... Unit main body, 5 ... recessed portion, 11 ... stopper, 12 ... projected portion, 13 ... screw portion, 14,15 ... screw, 21 ... panel.

Claims (1)

[Scope of utility model registration request] 1. A fixing structure for a control device unit, which is inserted in a plurality of openings from the front side of the panel into the opening part of the panel, wherein a recess formed in the upper and lower surfaces of the control device unit and a rear part of the control device unit. A stopper having a pair of upper and lower protrusions that are fitted externally and fit into the upper and lower recesses in the rearward direction of the control device unit, and screw portions that vertically oppose the back surface of the panel in the upper and lower parts of the control device unit. , The fixed structure of the control device unit.