JPS5823145Y2 - Electrical component mounting device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electrical component mounting device that is applied, for example, to attaching a jack or rotary switch to a mounting plate, that is, a chassis front plate.

゛In the past, parts to be mounted, such as jacks and rotary switches, in which a cylindrical body part, that is, a metal part for inserting a plug or a bearing part of a rotary operating shaft, etc., protruded from the front wall, were mounted on the front plate of a chassis, for example. In this case, holes are drilled at the required locations in the chassis, a threaded portion is provided on the outer periphery of the cylindrical body of the component to be mounted, and the cylindrical body is inserted into the through-hole from the back side of the chassis. Generally, the threaded part is exposed on the surface side of the chassis, a nut is screwed onto the threaded part, and the mounted component is attached to the chassis by tightening the nut.

However, such a device has the disadvantage that it is relatively troublesome to screw the nut onto the cylindrical body portion of the part to be attached and tighten it, and the installation work is inefficient.

Therefore, in recent years, various so-called one-touch mounting types have been developed in which the cylindrical body portion of the mounted component is press-fitted into the mounting hole of the mounting plate by utilizing the elastic deformation of the member.

However, such a device has the disadvantage of requiring a relatively large pressing force during installation, and its structure is such that it generates a tightening force, that is, a force that presses the front wall of the mounted part to the mounting plate. Because of this difficulty, it has been pointed out that there is a problem that looseness is likely to occur at the fixed location after installation.

This idea was made with attention to these circumstances,
To provide an electrical component mounting device which makes it extremely easy to mount a part to be mounted on a mounting plate, and which can securely mount and hold the part to be mounted without looseness.

An embodiment of this invention will be described below with reference to the drawings.

In the figure, 1 is a mounting plate, and 2 is a mounted component to be mounted on this mounting plate 1.

The mounting plate 1 is made of a metal plate, such as a front plate of a chassis, and has through holes 4 having cutouts 3 at the edges at required locations.

On the other hand, the mounted component 2 is a jack having a well-known internal configuration, and has a cylindrical body part 6 for inserting a plug separately protruding from its front wall 5, and a part near the base end of the cylindrical body part 6. A rotary ring 7 is attached to the outer periphery of the rotary ring 7 so as to be rotatable in the circumferential direction.

As shown in FIGS. 2 and 5, the cylindrical body portion 6 includes a cylindrical metal 6a having a locking flange on the outer periphery of the tip, and a cylindrical metal 6a having a locking flange on the outer periphery of the tip, and the outer periphery of the metal 6a by locking the tip of the cylindrical metal 6a with the locking flange. The proximal end of the metal 6a is inserted into the plug insertion hole 9 formed in the front wall 5, and
It is fixed by crimping its insertion end inside the jack.

Note that an annular thick portion 10 is formed on the open end surface of the plug insertion through hole 9 in the front wall 5, and corresponds to the through hole 4 of the mounting plate 1, that is, can be fitted into the through hole 4. At the same time, a stepped portion 11 is formed at the rear end of the sleeve 6b, and the annular groove 6C formed between the stepped portion 11 of the sleeve 6b and the distal end surface of the annular thick portion 10 is provided with the circular groove 6C. The movable ring 7 is mounted freely only in the rotating direction.

This rotary ring 7 is made of a metal plate having a thickness of about 0.5 m/m and is formed into an annular shape. A plurality of locking blades 7a are integrally provided so as to be able to be fitted into the ring, and each of the locking blades 7a has a cut-and-raised piece 7b inclined along the rotational direction of the ring. It is cut and raised toward the front wall 5 side.

Then, as shown in FIGS. 6A, B, and C, the cylindrical body part 6 of the mounted part 2 is inserted into the through hole 4 from the back side of the mounting plate 1, and the front wall 5 is inserted into the through hole 4. While making contact with the back surface of the mounting plate 1, the rotating ring 7 is exposed to the front side of the mounting plate 1 through the through hole 4 and its notch 3, and the rotating ring 7 is rotated by a required amount. The mounted component 2 is mounted on the mounting plate 1 by pressing the locking blade portion 7a against the surface of the mounting plate 1.

In other words, the distance between the plane part of the locking blade part 7a and the front wall 5 is set to be larger than the thickness dimension of the mounting plate 1, and the cut and raised piece 7b of the locking blade part 7a is set to be larger than the thickness dimension of the mounting plate 1.
The distance between the top of the front wall 5 and the front wall 5 is set smaller than the thickness of the mounting plate 1, so that when the rotating ring 7 is rotated as described above, the locking blade 7a The cut-and-raised piece 7b bites into the space between the locking blade portion 7a and the mounting plate 1, and tightens the mounting plate 1.

Note that the design of the cut and raised piece 7b may be changed to a half-cut protrusion or a circular protrusion as necessary, or the same function can be achieved by simply twisting the locking blade part 7a itself. You may also make it work.

Reference numeral 14 denotes a locking projection protruding from the inner periphery of the rotary ring 7, and the locking projection 14 is located in a recess 15 formed over a predetermined length in the bottom of the annular groove 6C, that is, in the sleeve 6b.
By engaging with the rotation ring 7, the rotation angle of the rotation ring 7 is regulated within a predetermined range.

Reference numeral 16 denotes a positioning protrusion provided on the inner periphery of the rotary ring 7, which selectively engages with a plurality of positioning recesses 17 provided at the bottom of the annular groove 6C. This is for stopping at a predetermined rotational position.

Further, reference numeral 18 denotes a positioning protrusion protruding from the upper part of the annular thick part 10 of the mounted component 2, and a notch 3 of the mounting plate 1.
When the rotating ring 7 is rotated with respect to the mounting plate 1 as shown in FIG. 6C, the mounted part 2
This is to prevent the rotating ring 7 from rotating together with the rotating ring 7.

Note that the width of the notch 3 is set to be larger than the width of the locking blade portion 7a.

In the above configuration, especially in the present invention, the mounting plate 1
A plurality of notches 3 are provided at the edge of the through hole 4, and a plurality of locking blades 7a corresponding to the notches 3 are provided on the outer periphery. A rotary ring 7 provided on the mounting plate 1 is attached to the outer circumference of the cylindrical body part 6 of the mounted part 2 so as to be rotatable in the circumferential direction, and the cylindrical body part 6 of the mounted part 2 is placed on the back side of the mounting plate 1. is inserted into the through hole 4 to bring its front wall 5 into contact with the back surface of the mounting plate 1, and the rotary ring 7 is inserted through the through hole 4 and its notch 3 into the mounting plate 1.
The locking blades 7a are brought into pressure contact with the surface of the mounting plate 1 by rotating the rotary ring 6 by a required amount, thereby exposing the locking blades 7a to the surface of the mounting plate 1. This is characterized in that a part to be attached 2 is attached.

Therefore, when attaching the mounted part 2 to the mounting plate 1 as in the past, there is no need to use nuts to tighten it, making the mounting work extremely efficient. Since the locking blade portion 7a is tightened from the surface side, there is an advantage in that the installation is reliable and looseness is less likely to occur.

In addition, since the rotating ring 7 exposed on the surface side of the mounting plate 1 can be made thinner than a conventional nut, for example,
It is less likely to get in the way when attaching a decorative panel to the front side of the mounting plate, and when the dimensions and shape of the attached parts are the same, it is easier to use the original panel than the conventional nut type, such as an aluminum drawer. This has the advantage that panels etc. are easy to use.

In the above embodiments, the case where the mounted component is a jack has been described, but the present invention is of course not limited to such a device. The same applies to variable capacitors, rotary switches, etc.

Further, the shape and holding structure of the rotating ring are not limited to the above-mentioned ones, and other shapes may be used, for example, as shown in FIGS. 7 and 8.

In the one shown in FIG. 7, the rotary ring 27 is shaped like a sleeve, and each of the locking blades 27a protrudes from the outer periphery of the rear end.
The surface facing 5 is inclined in accordance with the cut and raised piece 7b in the above embodiment, and is adapted to rotatably fit onto the outer periphery of the cylindrical metal 6a which is crimped and fixed to the front wall 25. It has become.

On the other hand, what is shown in FIG.
A cylindrical body part 46 is integrally projected from the cylindrical body part 5 with its axis aligned with the through-hole for plug insertion. 1. Second annular step portions 50 and 51 are provided, and an E-ring groove 52 is provided on the front side of the first annular step portion 50, and a plate-shaped rotary ring 7 similar to the above embodiment is attached to the first annular step portion 50. It is rotatably fitted into the annular stepped portion 50, and E is fitted into the groove 52.
The ring 53 is fitted to prevent the rotating ring 7 from moving in the thrust direction, and in this way, the cylindrical body part 46 can be integrally molded on the front wall 45 of the attached part 42. This makes it possible to make the jack (mounted part) metal-free.

Further, the rotating ring may be different from the one described above, and may be configured to move in the thrust direction when rotated to tighten the mounting plate.

Further, it goes without saying that the number of notches in the mounting plate and the corresponding number of locking blades in the rotary ring are not limited to those described above, but may be other numbers.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of this invention, Fig. 2 is a cutaway side view showing the same embodiment, Fig. 3 is a sectional view taken along the line III--III in Fig. 2, and Fig. 4 is a cross-sectional view of the third embodiment. I in the diagram
5 is an exploded perspective view showing the embodiment; FIGS. 6A, B, and C are explanatory diagrams for explaining the operation of the embodiment; FIGS. 7 and 8; FIG. 2 is a perspective view showing a modification of this invention. 1...Mounting plate, 2...Mounted parts, 3
...Notch, 4...Through hole, 5,25.4
5... Front wall, 6.46... Cylindrical body part, 7, 27... Rotating ring, 7 a, 27
a... Locking blade part.

Claims (1)

[Scope of utility model registration request] A cylindrical body part is provided protruding from the front wall of the mounted part, and this cylindrical body part is inserted into a through hole of the mounting plate, and a plurality of notches are provided at the edge of the through hole of the mounting plate, A rotary ring having a plurality of locking blades on the outer periphery corresponding to the notches is attached to the outer periphery of the cylindrical body part of the attached part so as to be rotatable in the circumferential direction, and the cylindrical body of the attached part is inserted into the through hole from the back side of the mounting plate to bring its front wall into contact with the back side of the mounting plate, and the rotating ring is exposed to the front side of the mounting plate through the through hole and its notch. An electrical component mounting apparatus, characterized in that the part to be mounted is mounted on the mounting plate by rotating the rotation ring by a required amount and pressing the locking blade portion against the surface of the mounting plate.