JPS5823147Y2 - Multi-axis rotary switch - Google Patents

Description

[Detailed description of the invention] The present invention relates to a multi-axis rotary switch, such as a CB
) It is an object of the present invention to provide a rotary switch that can be applied to a transceiver channel selection device and that allows other mechanisms such as a volume to be operated by an operating shaft inserted coaxially with the channel selection shaft.

FIG. 1 is a partially cutaway vertical sectional view of a transceiver channel selection device to which an embodiment of the multi-axis rotary switch of the present invention is applied, and FIG. 2 is an exploded perspective view of each component thereof.

In the figure, the channel selection device 1 has a frame 2, which includes a rectangular plate-shaped frame portion 3 and a detent portion 4.
, a boss portion 5 having a shaft hole 5a, a threaded portion 5b, etc. are integrally die-cast.

As shown in FIGS. 3A and 3H, the frame portion 3 is formed with a circular recess 3a on its back surface (hereinafter referred to as the case facing surface) and through holes 3b at each of the four corners, and a pair of notches are formed at symmetrical positions on the outer circumference of the recess 3a. A recessed portion 3C is formed.

The detent section 4 has, for example, 40 radial positioning grooves 4a for 40 channels on the outermost periphery of the bottom surface of the recess 3a.
are arranged in a circumferential manner.

Reference numeral 6 denotes a hollow tuning shaft, which has a shaft hole 6a, a pair of grooves 6b, and a shaft portion 6C and a collar portion 6d of a predetermined length in front of the grooves 6b. It is rotatably fitted and inserted into JL5a from the front of the frame and protrudes rearward.

Reference numeral 7 designates a ball holding disc, which has a pair of U-shaped notches 7a formed on its outer periphery into which steel balls 8 are fitted, respectively, and a tuning shaft 6.
The frame 2 is fitted so that it rotates integrally from the rear.
stored inside.

Reference numeral 9 denotes a leaf spring, which is loosely fitted into the shaft 6 from the rear and is attached to the frame 2, respectively.
A C ring 1 attached to each groove 6b of the front and rear tuning shafts 6
0.11 and is elastically deformed, the ball 8 is pressed into engagement with the detent positioning groove 4a.

At this time, each of the parts 7 to 11 is in a state where it can rotate smoothly and integrally with the tuning shaft 6 without play.

When assembling the above-mentioned parts 2, 6 to 11, first insert the tuning shaft 6 from the front side of the frame 2 into the shaft hole 5a of the boss part 5 in the direction of the arrow hole in FIG. When it is slid, the flange 6d comes into contact with the front surface of the boss 5 after the shaft 6C is fitted into the shaft hole 5a.

That is, the tuning shaft 6 is displaced further to the left by fitting into the shaft hole 5a.

Therefore, the above-mentioned holding disk 7. Ball 8. After the leaf springs 9 are assembled in sequence, the rear C-ring 11 is engaged with the rear groove 6b.

At this time, since the groove 6b is displaced further to the left with respect to the frame 2 as described above, the C-ring 11 can be easily engaged with the groove 6b without the need to elastically deform the leaf spring 9.

After that, the tuning shaft 6 is pulled in the direction of arrow B while elastically deforming the leaf spring 9, and each part is slid until it reaches the position shown by the solid line in the figure, and the front groove part 6b and the shaft part 6C are moved away from the boss part 5. The C-ring 10 is engaged with the groove 6b.

As described above, since the shaft portion 6C is provided on the tuning shaft 6 so as to be slidable, the difficult work of assembling the parts while elastically deforming the leaf spring 10 is unnecessary, and the assembly work is extremely easy.

12 is a disk case, a pair of case halves 12a, 1
A disk 13 is housed between 2b.

As shown in FIGS. 4A to 4C, the case half 12b is formed by attaching and fixing the terminals 15 (15□ to 154) to the case 14 using a holder plate 16.

The case 14 has a shaft hole 14a in the center, and has a recess 14b, a pin 14C, a pin hole 14d, and a through hole 14e on the inner surface.
A ring-shaped recess 14j and a recess 1 are provided on the outer surface.
4k is provided.

The other case half 12a has the same structure as the case half 12b, but as shown in FIG. 2, a ring-shaped protrusion 14f and a ring-shaped protrusion 14g are provided on the outer surface (front in the figure). They differ in some respects.

When assembling the case halves 12a and 12b, the disk cases 13 are housed in the recesses 14b with their inner surfaces facing each other, and the pins 14C are fitted into the pin holes 14d to bring them into close contact with each other so that they are integrated. form 12.

In the disc case 12, the tuning shaft 6 is relatively fitted into the shaft hole 14a, and the ring-shaped protrusions 14f and 14g of the case half 12a are connected to the recesses 3a and 3 of the frame 2, respectively.
It can be easily positioned and assembled to the frame 2 by fitting it into the frame 2.

At this time, the disk 13 in the disk case 12 is inserted with its axis 13a into the tuning shaft 6 so as to rotate integrally therewith.

As shown in FIG. 1, the disk 13 has an insulating part 20a on the resin surface and a conductive part 21 embedded with a thin copper plate shown in a matte pattern in the figure, each formed in a predetermined pattern on both sides of a resin circular plate 20. has been done.

Both sides of the disc 13 are case halves 12 a and 12 b
(7) The contact point of the terminal 15 (15° to 154°) is contacted, and as the disc 13 is rotated by the tuning shaft 6, the manner in which each terminal contacts the pattern changes, thereby switching the channel signal.

Reference numeral 22 denotes a metal rectangular plate-shaped case holder, into which the rear part of the channel selection shaft 6 is relatively fitted into its shaft hole 22a to support it.

In addition, the locking claws 22b bent at the four corners of the case holder 22 are inserted into the respective through holes 14e and 3b of the disc case 12 and the frame 2, and by squeezing the tips protruding from the front surface of the frame 2. The disk case 12 is integrally attached and held to the frame 2.

According to this, the four locking claws 22b are respectively attached to the case 1.
2. Since the frame 2 is inserted in common, the common 6 of the case 12 and the frame 2 can be easily extracted and the precision can be improved, and the tightening operation is also easy and can be done with one touch.

Reference numeral 23 denotes a long solid operating shaft, which has a stepped portion 23 a and a structural portion 23 b, and as shown in FIG. The groove portion 2 of the shaft portion 23C is fitted and inserted in a mutually rotatable state until it comes into contact with the front end of the channel selection shaft 6, and projects rearward.
A C ring 24 is attached to 3b to stop the axial blank.

To attach this tuning device 1 to the transceiver case,
The boss portion 5 of the device 1 is fitted into the hole 24a from the back side of the case board 24 as shown by the two-dot chain line in FIG. 2, and the convex portion 3d of the frame 2 is engaged with the hole 24b. A nut 26 is tightened through a washer 25 to the positioning and mounting screw portion 5b which also serves as a stop.

Further, as shown in FIG. 1, a universal joint 27 or the like is attached to the rearwardly projecting shaft portion 23C of the operating shaft 23.
The joint 27 is further connected to a volume variable mechanism of the transceiver.

In the tuning device 1 assembled as described above, when the tuning shaft 6 is rotated in order to switch and tune a desired channel, the tuning shaft 6, the holding disc 7 holding the ball 8, the leaf spring 9, The discs 13 rotate together so that the balls 8 move into the detent recesses 4 corresponding to the desired channels of the detent section 4.
engage a.

As a result, the disk 13 has each terminal 15 (15, to 154) in contact with the channel pattern, and connects the desired channel via a circuit (not shown) connected to the terminal 15 (15, to 154). is selected.

After selecting the desired channel, by appropriately rotating the operation shaft 23 coaxial with the channel selection shaft 6, the volume variable mechanism is moved via the universal joint 27, and the volume is variably set.

Further, according to this configuration, since the channel selection axis 6 and the operation axis 23 are coaxial, space can be saved.

In the above embodiment, the volume variable mechanism is connected to the operating shaft 23, but the present invention is not limited to this, and various other variable and movable mechanisms may be used.

Further, in the above embodiment, the channel selection shaft 6 and the operating shaft 23 have a double shaft structure, but another operating shaft may be coaxially fitted and inserted through the operating shaft 23 to form a triple shaft or more structure.

As described above, the multi-axis rotary switch of the present invention includes a frame having a tent positioning mechanism, a case housing a contact switching mechanism, and a plurality of locking claws provided on the outside of the frame or the case. a case holder that extends through the frame and the case in the axial direction and fixes the frame and the case by tightening the respective protrusions; a tent positioning mechanism and a contact switching mechanism that are inserted through and assembled into the frame and the case; Since it consists of a rotatable pivot shaft that drives the mechanism, and a rotatable operating shaft that is coaxially inserted into the pivot shaft and drives each variable mechanism, multiple cases (or frames) are connected to the case. The plurality of locking claws of the holder are commonly inserted through the holder and are relatively well extended to each other so that the coaxial structure of the rotating shaft and the operating shaft can be maintained well to improve the operation precision, and each of the locking claws Since the part simply squeezes the protruding part, the work can be easily done with one touch, and the above-mentioned coaxial structure allows the size of the entire device to be reduced, and the cost can be reduced accordingly.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway vertical sectional view of a transceiver channel selection device to which an embodiment of the multi-axis rotary switch of the present invention is applied, Fig. 2 is an exploded perspective view of each of its parts, and Fig. 3A , B
4A to 4C are a rear view and a partially cut-away side view of a frame constituting the above-mentioned device, respectively, and FIGS. 1...Tuition selection device, 2...Frame, 3
...Frame part, 3a, 14b, 14
j...--concavity, 14 f, 14 g...
・、、Convex part, 4... Detent part, 5...
...Boss part, 5a, 6a, 14a, 22a...
Shaft hole, 6... Tuning axis, 6b, 23b...
・Groove portion, 7...Ball holding disc, 8...
・Ball, 9...Plate spring jo, 11.24...
...C ring, 12. (12, ~123)...
...Disc case, 12a, 12b...
・Case half off, 13...disc, 14...
...Case, 15 (15□~154) ...Terminal, 16 ...Holder plate, 22 ...Case holder, 22b ...Latching claw Part, 23...
...Operation axis, 23 a...Step part, 23 C
...Protruding shaft portion, 24...Case board,
26...Natsuto, 27...Universal joint.

Claims (1)

[Scope of utility model registration request] A frame having a detent positioning mechanism, a case housing a contact switching mechanism, and a plurality of locking claws provided on the outside of the frame or the case, each of which protrudes by passing through the frame and the case in the axial direction. a case holder that fixes the frame and the case by squeezing the protrusion; a rotatable rotating shaft that is inserted through and assembled into the frame and the case and drives the detent positioning mechanism and the contact switching mechanism; A multi-shaft rotary switch consisting of rotatable operation shafts that are coaxially inserted one after another and each drive a variable mechanism.