JPH0451441Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> This invention relates to a rotating part operating mechanism in which a relay operating shaft is disposed between the rotating operating shaft of the rotating part and the operating knob on the entire surface of the operating panel. It is.

<Prior Art> Conventionally, operating mechanisms for rotating parts used in electronic devices, etc., have a rotary variable resistor 1, which is a rotating part, placed near the back of an operation panel 2, as shown in FIG. 5, for example. The rotary operating shaft 1a of this variable resistor 1 is passed through the hole 2a drilled in the operating panel 2 from the back side to the front side.
An operating knob 4 is attached to the tip of a rotary operating shaft 1a that protrudes toward the front surface.

<Problems to be solved by the invention> In this type of operating mechanism for rotating parts, the mounting bracket 3 of the variable resistor, which is a rotating part, is located near the back of the operation panel 2 due to the arrangement of parts inside the electronic device. In some cases, this is not possible, and in such a case, the rotary operation shaft 1a of the variable resistor 1 must be made longer. However, if the rotational operation shaft of such a rotating component is lengthened, the storage box that stores the entire rotating component including the rotational operation shaft becomes larger during transportation, which increases transportation costs. The more the product is used, the greater the fluctuation becomes, leading to problems such as lowering the product value.

<Means for Solving the Problems> In order to solve the above-mentioned problems, this invention consists of an operation panel, a rotating part attached to the back of the panel, and one end of the rotating part connected to the rotating operation shaft of the rotating part. The relay operation shaft is made up of a relay operation shaft that is engaged through a mating member and has its other end projected toward the surface side of the operation panel, and an operation knob that is engaged with the other end of the relay operation shaft from the surface side of the operation panel. A circumferential groove having a groove width slightly larger than the thickness of the operation panel is formed at the other end of the operation shaft passing through the operation panel, and the circumferential groove is rotatably fitted into the operation panel. First
a hole, and a second hole that is larger than the shaft diameter of the relay operation shaft and connected to the first hole via a constricted groove, and the constricted groove is provided in the vicinity of these first and second holes. The present invention provides an operating mechanism for a rotating component, characterized in that a punch hole is provided to provide elasticity that allows the groove to expand.

<Operation> In order to assemble the operating mechanism for this rotating component by the means described above, the engaging member is attached to the rotating operating shaft of the rotating component in advance, and one end of the relay operating shaft is attached to this engaging member. The other end of this relay operation shaft is first passed through the second large hole drilled in the operation panel, and then the other end of this relay operation shaft is inserted. After applying the circumferential groove formed in the groove to the constriction groove connected to the first and second holes, this relay operation shaft is inserted into the first hole.
When pushed in the direction of the first hole, the circumferential groove passes through the constricted groove while expanding it, so that the circumferential groove is rotatable in the first hole but does not move in the longitudinal direction of the shaft. Fitted.

<Embodiment> Fig. 1 is an exploded perspective view showing an embodiment of the mounting mechanism for rotating parts of this invention, in which 5 is an operation panel made of plastic molding, etc., and 6 is the back side of this operation panel. 7 is a bracket for mounting a variable resistor 8, which is a rotating component formed by cutting and bending on the side chassis, and 9 is a printed wiring board for the amplifier. This is a bracket for attaching 10. A sub-printed wiring board 11 for mounting the variable resistor 8 is vertically fixed to the amplifier printed wiring board 10 by soldering or the like. The terminals of the device 8 are soldered. Then, the threaded cylindrical portion 8a of the variable resistor 8 is fitted into the mounting groove 7a formed in the bracket 7, and then the washer 12 is fitted into the threaded cylindrical portion 8a, and the nut 13 is screwed. and tighten and fix the variable resistor 8.
is attached to the bracket 7. 14 is the rotary operation shaft 8 of the variable resistor 8 installed in this way.
It is an engaging member that is attached by fitting its one end 14 to b in advance, and a variable resistor 8 is attached to this one end 14a.
A fitting hole is formed in a shape corresponding to the peripheral surface shape of the rotary operation shaft 8b. That is, as shown in the figure, if the tip of the rotary operation shaft 8b has a semi-cylindrical shape, the engagement hole is a semi-cylindrical shape, and if the outer peripheral surface of the tip has a knurled shape, then the engagement hole is semi-cylindrical. A corresponding knurl is also formed on the inner peripheral surface of the fitting hole. Further, a knurl is formed on the inner circumferential surface of the engagement hole at the other end 14b of this engagement member 14. 15 is the rotary operation shaft 8 of the variable resistor 8
It is a relay operating shaft that engages one end 15a with the other end 14b of the engaging member 14 attached in advance to
A knurl is formed on the outer circumferential surface of the engagement hole 4b in correspondence with a knurl formed on the inner circumferential surface of the engagement hole 4b.

Therefore, this one end portion 15a is connected to the engaging member 14.
It can be easily inserted and engaged into the engagement hole of the other end portion 14b without sliding in the rotational direction.
Further, a circumferential groove 15c having a groove width slightly larger than the thickness of the operation panel 5 is formed at the other end 15b of the relay operation shaft 15 that passes through the operation panel 5.

The operation panel through which the other end 15b of the relay operation shaft 15 thus formed has a first hole 16 into which the circumferential groove 15c formed at the other end 15b is rotatably fitted. Circular ribs 16a, 16a are formed on both the front and back surfaces of the operation panel 5 near the first hole 16.
Further, a second hole 18 larger than the shaft diameter of the relay operation shaft 15 connected to the first hole 16 via a constriction groove 17 is bored, and these first and second holes 16, 18 A punch hole 19 is bored in the vicinity of the groove 17 to provide elasticity that allows the constriction groove 17 to expand. Reference numeral 20 denotes a circular rib centered on the first hole 16, and the other end 15b of the relay operation shaft 15 passing through the hole 16 of the operation panel 5 is attached so as not to contact the inner peripheral surface of the circular rib. The engaged operation knob 21 is fitted.

FIG. 2 is an enlarged front view of a portion of the operation panel 5 in which the first and second holes 16, 18, etc. are formed, and FIG. 3 is a sectional view taken along line A-A in FIG. be.

FIG. 4 is an explanatory view of how the circumferential groove 15c formed on the other end 15b of the relay operation shaft 15 is fitted into the first hole 16 formed in the operation panel 5. To explain the assembly of the component operation mechanism, the rotary operation shaft 8b of the variable resistor 8, which is a rotating component attached to the bracket 7 of the side chassis 6 disposed on the back side of the operation panel 5, has the above-mentioned One end 14a of the engaging member 14 is attached in advance, and the other end 14a of the engaging member 14 is
4b, one end 15a of the relay operation shaft 15 is engaged by inserting or the like. The other end 15b of the relay operation shaft 15 is first passed through the second hole 18, which is a large hole, drilled in the operation panel 5, as shown by the dotted line in FIG. At this time, the axis of the rotary operation shaft 8 of the variable resistor 8 and the axis of the relay operation shaft 15 are eccentric, but since the relay operation shaft 15 may be bent to some extent, the rotational operation shaft 8 and the axis of the relay operation shaft 15 are eccentric. Penetration into hole 18 of No. 2 is possible.

Next, a circumferential groove 15c formed on the other end 15b of this relay operation shaft 15 is inserted into the first and second holes 1.
6 and 18, and then push the relay operation shaft 15 in the direction of the first hole 16, the circumferential groove 15c passes through the constriction groove 17 while being pushed and expanded. Then, this first hole 1
6 so that it is rotatable and does not move in the longitudinal direction of the shaft.

<Effects of the invention> This invention is as described above, namely, an operation panel, a rotating part attached to the rear of the back surface thereof, and one end of the rotating part being engaged with the rotating operation shaft of the rotating part via an engaging member. It consists of a relay operation shaft whose end protrudes toward the front side of the operation panel, and an operation knob that engages the other end of the relay operation shaft from the front side of the operation panel,
A circumferential groove having a groove width slightly larger than the thickness of the operation panel is formed at the other end of the relay operation shaft passing through the operation panel, and the circumferential groove is rotatably fitted into the operation panel. A first hole to be fitted, and a second hole that is larger than the shaft diameter of the relay operation shaft connected to the first hole via a constriction groove, and the first and second holes are Since the operating mechanism for rotating parts is characterized in that a punch hole is bored in the vicinity of the constriction groove to provide elasticity that allows the constriction groove to expand, in order to assemble the operating mechanism for rotating parts, it is necessary to The engaging member is attached to the rotating operating shaft of the operating panel in advance, one end of the relay operating shaft is engaged by inserting the engaging member, and the other end of the relay operating shaft is first attached to the operating panel. through the second hole having a large hole drilled in the hole;
Next, the circumferential groove formed on the other end of this relay operating shaft is brought into contact with the constricted groove that connects with the first and second holes, and then this relay operating shaft is pushed in the direction of the first hole. Then, the circumferential groove passes through the constricted groove while being expanded, and the circumferential groove is fitted into the first hole such that it is rotatable but does not move in the longitudinal direction of the shaft. Further, the circumferential groove formed at the other end of the relay operation shaft fits into the first hole drilled in the operation panel without being inserted in the longitudinal direction of the shaft, and the shaft is inserted into the shaft like a bearing mechanism. The relay operation shaft has some flex, so even if the axis of the rotary operation shaft of the rotating component and the axis of the relay operation shaft are slightly eccentric, it will not cause run-out. will no longer occur.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an embodiment of the mounting mechanism for rotating parts of this invention, and Fig. 2 shows the hole through which the other end of the relay operating shaft is drilled in the operation panel. An enlarged front view, FIG. 3 is a sectional view taken along the line A-A in FIG.
The figure is a perspective view of a conventional operating mechanism for rotating parts. 5...Operation panel, 6...Side chassis, 7
...Bracket, 8...Variable resistor, 8a...Threaded tube portion, 8b...Rotary operation shaft, 9...Bracket, 10...Printed wiring board, 11...Sub printed wiring board, 12...Washer , 13...
Nut, 14... engaging member, 14a... one end,
14b...Other end, 15...Relay operation shaft, 15a
... One end, 15b... Other end, 16... First hole, 16a... Circular rib, 17... Constricted groove,
18... Second hole, 19... Punch hole, 20... Circular rib, 21... Operation knob.

Claims (1)

[Scope of utility model registration request] An operating panel, a rotating component attached to the rear of the rear surface, a relay operating shaft that engages the rotating operating shaft of the rotating component via an engagement member at one end and protrudes toward the surface of the operating panel; The relay operation shaft has an operation knob that engages with the other end of the operation panel from the surface side of the operation panel, and the other end of the relay operation shaft that passes through the operation panel has a circumference having a groove width slightly larger than the thickness of the operation panel. On the other hand, the operation panel has a first hole into which the circumferential groove is rotatably fitted, and a shaft of the relay operation shaft connected to the first hole via a constricted groove. A rotation characterized in that a second hole larger than the diameter is drilled, and a punch hole is drilled near the first and second holes to provide elasticity that allows the constriction groove to expand. Parts operation mechanism.