JPS5825663Y2 - Chassis mounting device - Google Patents

Description

[Detailed description of the invention] This invention relates to a chassis mounting device for attaching a cylindrical cabinet such as a wireless microphone to a chassis, and the purpose is to provide an excellent chassis mounting device that has a simple configuration and is easy to assemble and disassemble. It is.

Generally, when attaching a chassis to a cabinet in a wireless microphone, etc., insert the chassis 2 into the cabinet 1 as shown in Fig. 1, tighten and fix both with screws 3, and then connect the cylindrical lid 4. The cover body 4 is fitted into the chassis 2, and a thread groove 6 formed at the opening edge of the lid body 4 is screwed into a thread groove 5 formed at the outer circumference of the chassis 2.

However, this type of mounting device requires a separate screw 3, which is extremely troublesome to install and remove.
Furthermore, since the screws are directly exposed, there is a problem in that the appearance is not very desirable.

This proposal eliminates the above-mentioned conventional drawbacks,
The present invention provides an excellent mounting device that has a simple structure and can be mounted and removed very easily.

The chassis mounting device of the present invention will be described below with reference to drawings of an embodiment.

In FIGS. 2 to 5, 7 is a cylindrical cabinet, 8 is a protrusion formed integrally with the opening edge of the cabinet 1 so as to protrude inward, and 9 is a cabinet formed from the opening edge of the cabinet 1. 1, an elastic piece integrally formed to protrude in the axial direction; 10, a locking piece having a tapered surface 11 integrally formed at the tip of the elastic piece 9; 12, a chassis having a semi-cylindrical cross section; , 13 is a flange formed on the central outer periphery of the chassis 12, 14 is a threaded groove formed adjacent to the flange 13, and 15 is a protrusion 8 formed on the cabinet 7 when inserting the chassis 12 into the cabinet 7.
16 is a concave groove formed in the axial direction on the outer periphery of the chassis 12 so as to be engaged with the concave groove 15; 16 is a concave portion for rotation relief formed continuously and integrally with the end of the concave groove 15; 17 is an extension of the concave groove 15; A stopper 18 is formed on the chassis 12, and 19 is a post formed integrally with the chassis 12 at a position opposite to the locking piece 10 formed on the cabinet 7 when the chassis 12 is inserted into the cabinet 7. 20 is a rib integrally formed on the side of the engaging piece 19; 21 is a retainer formed on the edge of the opening of the cabinet 7 so as to protrude inward; Protrusion, 22 is chassis 1
It is a cylindrical lid body having a threaded groove 22 that is screwed into the threaded groove 14 of No. 2.

In the above embodiment, when attaching the chassis 12 to the cabinet 7, first the groove 1 formed in the chassis 12 is
5 is aligned with the protrusion 8 formed on the cabinet 7, and in this state, the chassis 12 is inserted into the cabinet 7.

When the chassis 12 is inserted into the cabinet 7, a protrusion 8 formed on the cabinet 7 comes into contact with a stopper 17 formed on the chassis 12.

Therefore, the chassis 12 cannot be inserted any further at this point.

In this state, the locking piece 1 formed on the cabinet 7 is
0 is formed on the chassis 12 and comes into almost contact with the engaging piece 19.

When the protrusion 8 formed on the cabinet 7 comes into contact with the stopper 17 formed on the chassis 12, the chassis 12 is rotated in the direction of arrow A in this state so that the protrusion 8 is located in the recess 16 for rotation relief.

If you do this, you can insert the chassis 12 further, so apply more force to the chassis 12 and insert the chassis 12 into the cabinet 7 until the protrusion 8 comes into contact with the flange 13 of the chassis 12. .

When the projection 8 comes into contact with the flange 13 of the chassis 12, as shown in FIG. 5, the locking piece 10 formed on the cabinet 7 engages the engaging piece 19 formed on the chassis 12 and the rib 20 formed on its side This will cause it to ride on the ground and cause a large deflection.

Therefore, if the chassis 12 is rotated in the direction opposite to the direction of arrow A in this state, the locking piece 10 will be completely engaged with the retaining piece 19 as shown in FIG. 2.

In this state, the protrusion 8 formed on the cabinet 7 is
is formed on the chassis 12 and located between the stopper 17 and the flange 13, so that the chassis 12 can no longer be pulled out from the cabinet 7.

That is, by inserting the chassis 12 into the cabinet 7 through such a procedure, the locking piece 1 formed on the cabinet 7
0 is engaged with the engaging piece 19 and rib 20 formed on the chassis 12, the chassis 12 is no longer connected to the engaging piece 10 and the rib 20 formed on the chassis 12.
The engagement between the protrusion 8, the stopper 17, and the locking piece 19 prevents the protrusion from rotating relative to the cabinet 7, and the engagement between the protrusion 8, the stopper 17, and the locking piece 19 prevents the protrusion from being pulled out in the axial direction relative to the cabinet 7.

Therefore, in this state, the chassis 12 is connected to the cabinet 7.
It will be firmly fixed against.

When the chassis 12 is to be removed from the cabinet 7, the locking piece 10 formed on the cabinet 7 is lifted outward, and then the chassis 12 is rotated and removed from the cabinet 7 in the reverse order of the installation procedure.

As is clear from the above embodiments, according to the chassis mounting device of the present invention, the chassis is inserted into the cabinet in the axial direction, and when it stops, it is rotated slightly, and then it is further inserted in the axial direction, and when it stops again. It is constructed so that the locking piece formed on the cabinet is rotated in the opposite direction to engage the retaining piece and rib formed on the chassis, and the installation work as a whole is easy. It is easy to use, and the mounting condition is stable, making it extremely advantageous in practice.

In addition, as shown in the embodiment, the cabinet 7 is provided with a locking protrusion 21.
In this case, when the chassis 12 is attached to the cabinet 7, the retaining protrusion 21 engages with the side edge of the rotation escape recess 16 of the chassis 12, so that a more solid attachment condition can be obtained.

Of course, in this case, when inserting the chassis 12 into the cabinet 7, the outer surface of the chassis 12 will come into contact with the retaining protrusion 21, making it difficult to insert the chassis 12 itself.

However, if the size of the locking protrusion 2 is made extremely small,
When inserting chassis 12 into cabinet 7,
These problems are not so big if the insert is inserted while applying a downward force to 2.

In this case, as shown in FIG. 2, if the opening edge of the lid 22 is made to overlap the opening edge of the cabinet 7, the opening edge of the cabinet 7 will be substantially pressed from the outside by the lid 22. This has the feature that the engagement by the engagement protrusion 21 becomes stronger.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a conventional chassis mounting device, Fig. 2 is a sectional view of an embodiment of the proposed chassis mounting device, and Fig. 3 is an explanatory diagram of a conventional chassis mounting device.
The figure is a perspective view of a cabinet used in the device, FIG. 4 is a perspective view of a chassis used in the device, and FIG. 5 is a schematic diagram for explaining the installation process of the device. 7...Cabinet, 8...Protrusion, 9
...Elastic piece, 10...Locking piece, 11.
...Tapered surface, 12...Chassis, 13
...Flame, 14...Thread groove, 15...
...concave groove, 16...concavity, 17...
・Stopper, 18... Prop, 19...
- Engagement piece, 20... rib, 21... engagement protrusion, 22... lid body, 23... thread groove.

Claims (2)

[Scope of utility model registration request] (1) A protrusion protruding inward is formed on the opening edge of the cylindrical cabinet, and an elastic piece having a locking piece at the tip is integrally formed; a groove that engages with the protrusion when the chassis is inserted into the cylindrical cabinet; a stopper that engages the protrusion with the groove and abuts the protrusion when the chassis is inserted into the cylindrical cabinet; a recess for rotational relief is formed to allow the chassis to rotate in the circumferential direction with respect to the cabinet with the protrusion in contact with the stopper, and with the protrusion inserted in the four parts; Furthermore, when the chassis is inserted into the cabinet and the protrusion is engaged with the stopper in this state, the locking piece formed on the cabinet is configured to engage with the engagement piece formed on the chassis. A chassis device characterized by: (2) An engaging protrusion protruding further inward is formed on the opening edge of the cylindrical cabinet, and when the engaging protrusion is engaged with the retaining piece formed on the chassis, the engaging protrusion is engaged with the retaining piece formed on the chassis. The chassis mounting device according to claim 1, which is configured to engage with an edge of a recess formed in the chassis.