JPH062290Y2 - Mounting device for small embedded devices - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a mounting device for an embedded small-sized device which is mounted by inserting the device into a panel such as a control panel from the front side.

BACKGROUND ART FIG. 7 shows a conventional fixture (a) of this type.
This attachment (a) is formed in a rectangular frame shape, and a claw (b) is integrally and inwardly projected on the rear side of the central portion of the inner surface of each of the upper and lower sides. In addition, an elastic arm (c) is integrally formed from the ends of the upper and lower sides, and this arm (c)
A screw hole (d) for main fixing is formed on the base side of the. A square hole is opened in the panel.The device main body with a square cross section is inserted from the front into this square hole, and the flange part with a larger outer diameter than the square hole formed in the front part of the device main body is a square hole. The abutment (a) larger than the outer diameter of the device body is inserted into the device body from the back side. And, grooves are formed on the upper and lower surfaces of the device body,
The groove engages with the claw (b) of the fixture (a). At this time, the arm (c) makes elastic contact with the back surface of the panel, and the reaction force holds the engagement between the claw (b) and the groove. Then, a screw is screwed into the screw hole (d) to permanently fix the fixture (a). In the case of such a conventional example, at the time of final fixing, the same hole (d)
Since the positions of the claw (b) and the claw (b) are misaligned, there is a problem that the claw (b) will come off the groove.
When removing the attachment (a), both the claws (b) must be lifted up with both hands to pull it out, which is troublesome, and there is a problem that the device body may fall during the work.

[Object of the Invention] The present invention has been made in view of the above-mentioned points, and it is possible to prevent the pawl from coming off the groove when being screwed and fixed, and to enable the attachment to be removed with one hand. The purpose of the present invention is to provide a mounting device for an embedded small-sized device.

DISCLOSURE OF THE INVENTION (Structure) The present invention is a flange in which a device body having a substantially square cross section is inserted from a front surface of the panel into a square hole opened in the panel, and the device body has a front portion formed larger than the square hole. In a mounting device for an embedded small-sized device, a portion of which is in contact with a peripheral portion of a square hole, and a mounting device having a rectangular frame shape is inserted into the outer periphery of the device body from the back side of the panel to mount the device body on the panel. , The fitting is formed of an elastic member, and the claws that engage with the multiple grooves formed continuously on the outer surface of the equipment body in the insertion direction of the equipment body are inwardly directed to the inner surfaces of the facing sides of the equipment. The protrusion is integrally formed on the surface opposite to the side of the fixture on which the claw is formed, and is elastically contacted with the rear surface of the panel from both sides of the protrusion to engage the claw with the groove. A pair of holding arms is formed so as to project toward the front side and screwed from the back side to push the back side of the panel with the tip. A screw hole into which the screw is screwed is provided on the protrusion corresponding to the claw, and a handle for releasing the engagement between the claw and the groove by pressing is formed on each protrusion so as to project to the back side. A hinge is formed at each corner of the holder so that the fixture can be folded, and a screw hole for mounting a main fixing screw is formed in correspondence with a claw engaging with a groove. It is possible to release the engagement between the claw and the groove by pressing both grips with one hand, and further, the hinge can be used to fold the fixture. Is.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 5 shows a perspective view of the control panel 14 on which a large number of device bodies 3 are mounted, and the device body 3 is mounted on the panel 1 on the front surface of the control panel 14. The device body 3 is, for example, for notifying an abnormal signal of equipment by a buzzer or an indicator lamp. FIG. 4 shows a state in which the device body 3 is mounted on the panel 1, and the panel 1 has a square hole 2 matching the cross-sectional shape of the device body 3.
Are formed. The outer shell of the device body 3 is a cylindrical case 1
5, a front plate 16 attached to the front part of the case 15, and a base 17 attached to the rear part of the case 15. A flange portion 4 larger than the square hole 2 is formed around the front part of the case 15, and when the device body 3 is inserted from the front surface of the panel 1, the flange portion 4 is formed on the front surface of the peripheral edge of the square hole 2 of the panel 1. The device main body 3 is positioned by abutting. Further, a fixture 5 is attached from the back of the device body 3 to attach the device body 3 to the panel 1.

FIG. 1 shows a perspective view of the fixture 5, in which the corners of the square frame-shaped fixture 5 made of an elastic member formed to be larger than the outer diameter of the device body 3 have hinge portions 1 each having an arc-shaped cross section.
2 is formed, and the hinge 5 allows the fixture 5 to be folded. As shown in FIG. 1, the fixture 5 is integrally formed with a claw 7 having a pointed tip on the back side on the front side of the inner surfaces of the opposite sides 5a and 5b so as to project inward. By the way, as shown in FIG.
A large number of grooves 6 are continuously formed on the upper and lower surfaces in the insertion direction of the device body 3 that engages with the claw 7. At the central portions of the outer surfaces of the upper and lower sides 5a, 5b of the fixture 5, which are opposite to the claws 7, projecting pedestals 8 are integrally formed. An elastic arm 9 having a hook-shaped tip is formed to project obliquely toward the front side from both sides of the front end of the protrusion 8. Further, from the upper and lower ends of the rear side of the protrusion 8, the handle 1
3 is formed so as to project to the back side. Further, a screw hole 11 is screwed in the central portion of the protrusion 8 in the same direction as the insertion direction of the fixture 5. The screw hole 11 is at the same position as the claw 7 in the vertical direction.

Next, the mounting operation will be described. First, the device body 3 is inserted into the square hole 2 of the panel 1 from the front side of the panel 1. As the device body 3 is inserted, as shown in FIG. 4, the flange portion 4 of the case 15 comes into contact with the front part of the peripheral edge of the square hole 2 of the panel 1 to regulate the positioning of the device body 3. Then, when the fixture 5 is inserted from the rear side of the device body 3, the claws 7 on the upper and lower sides 5a, 5b of the fixture 5 are attached to the case 15 of the device body 3.
The claws 7 are successively engaged with the grooves 6 on the back side, and the claws 7 are sequentially engaged with the grooves 6 on the front side. When the fixture 5 is further inserted into the front side, the arm 9 elastically contacts the rear face of the panel 1 to be deformed as shown in FIG. 2, and the reaction force pushes the fixture 5 itself back toward the rear face. And then the reaction force causes the claw 7 to move into the groove 6
The fixture 5 is fixed to the device body 3 by engaging with. Next, the screw 10 is screwed into the screw hole 11, and as shown in FIG. 3, the tip of the screw 10 is pressed against the rear surface of the panel 1 to apply a reaction force to the fixture 5 to cause the fixture 5 to move. The engagement between the claw 7 and the groove 6 of the device body 3 is strengthened, and the device body 3 is permanently fixed to the panel 1. Also, the upper and lower sides 5a, 5 of the fixture 5
Since the convex portion 18 is provided on the inner side surface of b, the claw 7 is inclined toward the groove 6 side, and the engagement between the claw 7 and the groove 6 becomes stronger.

Next, when the fixture 5 is removed for repair or the like, the procedure is as follows. As shown in FIG. 6, when the screw 10 is loosened and the upper and lower handles 13 are pressed with one hand, the whole is deformed and the convex portion 1
8 as a fulcrum, the claw 7 floats above the groove 6, and the claw 7 and the groove 6
To disengage from. Then, with the other hand, the attachment 5 having the device body 3 can be pulled out to the back side with the other hand, and the attachment 5 can be easily removed from the device body 3. Further, by pushing the corner portion of the fixture 5, the hinge portion 12 is deformed, and the fixture 5 can be folded.

The device body 3 used in this embodiment is configured as follows. That is, as shown in FIG. 4, a printed board 20 having a buzzer 19 mounted on the front side of the device body 3.
The front plate 16 is provided with a plurality of holes 21 for removing the sound of the buzzer 19. Case 15
A printed board 23 for power supply, which has a power transformer 22 mounted thereon, is arranged on the bottom of the case 15, and a display element 24 such as a light emitting diode facing the front board 16 and a signal receiving board are provided on the top of the case 15. A printed circuit board 26 provided with a control circuit unit for controlling notification of the display element 24, the buzzer 19 and the like, and for controlling the relay 25 is arranged. Input / output terminals 27 are provided on the upper and lower sides of the base 17 at the rear of the device body 3, and lead wires 28 for external connection of input signals, output signals, power supplies, etc. are connected to the terminals 27.

[Effects of the Invention] As described above, the present invention inserts the device body having a substantially square cross section from the front surface of the panel into the square hole opened in the panel, and is formed larger than the square hole in the front part of the device body. Mounting device for a small embedded device in which the flange portion abuts the peripheral portion of the square hole, and a square frame-shaped fixture is inserted into the outer periphery of the device body from the back side of the panel to mount the device body on the panel. At
The claws that engage with the multiple grooves formed continuously on the outer surface of the device body in the insertion direction of the device body are formed inward on the inner surfaces of the facing sides of the elastic fixture, and the claws are formed. A protrusion is integrally projected on the surface opposite to the side of the attached fixture, and an arm for elastically contacting the back surface of the panel from both sides of the protrusion to hold the engagement between the claw and the groove to the front side. Protrusions are formed, and screw holes are screwed from the back side to press the back surface of the panel at the tip. Screw holes are screwed into the protrusions corresponding to the above-mentioned claws. The handle to be released is formed on each of the protrusions so as to project to the rear side, and the hinges that allow the fixtures to be folded are formed at the corners of the fixtures. When you insert the fixture from the rear side of the device body, the claws of the fixture will fit into the grooves of the device body. As the arm elastically contacts the back surface of the panel, the claw and groove are fixed by the reaction force generated in the fixture, and the screw is further advanced into the screw hole to screw the screw into the screw hole. By pressing the tip of the to the back surface of the panel, the fixture has the effect of obtaining a reaction force and strengthening the engagement between the claw and the groove, and moreover, the screw hole and the claw are used as a protrusion. By providing it correspondingly, the claws are less likely to come off the groove when screwed in compared to the conventional way, and when removing the fixture from the device body, use one hand. By pressing both grips, both claws can be removed from the groove, so that the effect of removing the mounting tool during repair or the like can be performed very easily. Further, since the hinge portion is provided at the corner portion of the fixture, the fixture can be folded by the hinge portion, and there is an effect that the packaging is very easy.

[Brief description of drawings]

FIG. 1 is a perspective view of a fixture according to an embodiment of the present invention, FIG. 2 is a motion explanatory view of the same as above, FIG. 3 is a sectional view of an essential part showing a fixed state of the same, and FIG. 5 is an overall perspective view of the same as above, FIG. 6 is a cross-sectional view of an essential part showing a detached state of the same,
FIG. 7 is a perspective view of a conventional example. 1 is a panel, 2 is a square hole, 3 is a device body, 4 is a flange part, 5 is a fixture, 6 is a groove, 7 is a claw, 8 is a protrusion, 9 is an arm, 10 is a screw, 11 is a screw hole, 13 is a handle.

Claims (1)

[Scope of utility model registration request] 1. A device main body having a substantially square cross section is inserted from the front surface of the panel into a square hole opened in the panel, and a flange portion formed larger than the square hole in the front part of the device main body is in the peripheral portion of the square hole. A mounting device for an embedded small-sized device, which is in contact with and inserts a quadrangular frame-shaped fixture into the outer periphery of the device body from the back side of the panel to mount the device body on the panel, wherein the fixture is an elastic member. Claws formed on the outer surface of the device body, which engage with the multiple grooves formed continuously in the insertion direction of the device body, are formed inward on the inner surfaces of the facing sides of the fixture, respectively. A protrusion is integrally projected on the opposite surface of the side of the formed fixture, and an arm for elastically contacting the back surface of the panel from both sides of the protrusion to hold the engagement between the claw and the groove is formed on the front side. To the rear side of the panel, and the screw that presses the rear side of the panel with the tip is screwed. The same hole is provided on the protrusion corresponding to the above-mentioned claw, and a handle that releases the engagement between the claw and the groove by pressing is formed on each of the protrusions by projecting to the back side, and attached to each corner of the fixture. A mounting device for an embedded small-sized device, which is formed by forming a hinge part capable of folding a tool.