JP3192292U - Rotating operation load torque applying device - Google Patents

Abstract

A highly versatile rotational operation load torque applying device that can be applied without being affected by the length of a mounting screw and bearing that supports a rotating shaft.
In an arrangement in which an elastic ring 33 is pressed against a rotary shaft 11 rotatably supported by a mounting screw / bearing 12 to apply a rotational operation load torque to the rotating shaft, an assembly member 31 for mounting the mounting screw / bearing is provided. A shallow bottomed cylindrical bulging portion 321, a mounting flange 322 extending in the circumferential direction from the opening end of the bulging portion, a rotating shaft through hole 323 formed in the bottom of the bulging portion, and this rotation An elastic ring holder 32 having an elastic ring receiving recess 321b formed on the outer surface of the bottom so as to surround the shaft through hole, an elastic ring 33 received in the elastic ring receiving recess, and an elastic ring It is set as the structure provided with the elastic body ring press board 34 which presses and deform | transforms and press-contacts to a rotating shaft.
[Selection] Figure 3

Description

  The present invention relates to a rotation operation load torque applying device for a rotation shaft.

  Volume adjusters and sound quality adjusters are operated by rotating the rotary operation knob attached to the outer end of the rotating shaft that protrudes from the device operation panel of the audio equipment, so that the partial pressure of the electrical resistor provided in the device is adjusted. In this configuration, the resistance value is changed to instruct a change in volume or sound quality.

  In such an adjuster, it is desirable that the rotation operation load torque when rotating the rotation operation knob by hand is set to a stable predetermined value and maintained, and the elastic ring is pressed against the rotation shaft to rotate the frictional force. It has been proposed to add a rotation operation load torque applying device for applying (rotation operation load torque). This rotational operation load torque applying device, for example, with respect to a volume adjuster, allows a rotating shaft to freely rotate through a main body outline of the adjuster, and is provided outside an attachment screw and bearing for attaching the main body outline to an equipment operation panel. An elastic ring that passes through the rotating shaft is disposed so as to be located on the end face, and a cap nut is screwed from the outer end side to a male screw formed on the outer periphery of the mounting screw and bearing to compress the elastic ring. Thus, the rotational operation load torque is applied by being elastically deformed and pressed against the rotating shaft. The magnitude of the rotational operation load torque is changed by changing the amount of deformation of the elastic ring and changing the pressure contact force to the rotating shaft.

JP 2005-38117 A Japanese Patent No. 4341900

  The rotation operation load torque applying device for the rotation operation knob described in Patent Documents 1 and 2 elastically deforms the elastic ring on the outer end surface of the mounting screw and bearing for attaching the volume adjuster (volume) to the device operation panel. Since the cap nut is screwed onto the male screw formed on the outer periphery of the mounting screw / bearing so as to press the rotating shaft, the volume to which this rotational operation load torque applying device is applied is the length of the mounting screw / bearing. In addition to being mounted on the device operation panel, it must be configured to a length that is suitable for screwing the cap nut, and a short mounting screw that only considers mounting on the device operation panel It is difficult to apply this rotational operation load torque applying device to a volume provided with a double bearing.

  The purpose of the present invention is to provide a versatile rotational operation load torque that can be applied without being affected by the length of the mounting screw / bearing in a device that rotatably supports the rotating shaft by the mounting screw / bearing. To provide an apparatus.

  The rotational operation load torque applying device of the present invention is configured to be widely applicable to various types of rotating shafts such as a volume adjuster, a sound quality adjuster, a rotary switch, and a rotary switch operated by the rotary shaft. To do.

The rotational operation load torque applying device of the present invention is configured to apply a rotational operation load torque to the rotary shaft by pressing the elastic ring against the rotary shaft rotatably supported by the mounting screw and bearing.
An assembly member for mounting the mounting screw and bearing;
Surrounding the rotating shaft through-hole, a bottomed cylindrical bulging portion, a mounting flange extending in the circumferential direction from the opening end of the bulging portion, a rotating shaft through hole formed in the bottom of the bulging portion An elastic ring holder having an elastic ring receiving recess formed on the outer surface of the bottom portion,
An elastic ring accommodated in the elastic ring accommodating recess of the elastic ring holder so as to surround the rotating shaft;
An elastic ring pressing plate that is attached to the outer surface of the bottom of the elastic ring holder and presses and deforms the elastic ring to press-contact the rotating shaft.

  The rotational operation load torque applying device of the present invention is configured to hold the elastic ring and press the rotating shaft without using the mounting screw / bearing, so it is bound by the length of the mounting screw / bearing. It can be applied without any problem and is versatile.

It is a perspective view of the volume controller which is an Example of this invention. It is a perspective view which decomposes | disassembles and shows a part of volume controller shown in FIG. It is a side view which cut | disconnects and shows a part of volume controller shown in FIG. It is a side view which decomposes | disassembles and shows a part of volume controller shown in FIG. It is a perspective view of the audio equipment to which the volume controller which is an Example of this invention is applied. It is a vertical side view which shows the attachment state of the volume controller in the audio equipment shown in FIG.

  The embodiment will be described by exemplifying application to a volume controller.

  The volume controller in this embodiment is a form in which a slider brought into contact with the surface of the electric resistor is slid by rotating it with a rotating shaft.

The rotational operation load torque applying device is configured to apply the rotational operation load torque to the rotating shaft by pressing the elastic ring against the rotating shaft rotatably supported by the mounting screw and bearing,
An assembly member for mounting the mounting screw and bearing;
Surrounding the rotating shaft through-hole, a bottomed cylindrical bulging portion, a mounting flange extending in the circumferential direction from the opening end of the bulging portion, a rotating shaft through hole formed in the bottom of the bulging portion An elastic ring holder having an elastic ring receiving recess formed on the outer surface of the bottom portion,
An elastic ring accommodated in the elastic ring accommodating recess of the elastic ring holder so as to surround the rotating shaft;
An elastic ring pressing plate that is attached to the outer side surface of the bottom of the elastic ring holder and presses and deforms the elastic ring to press against the rotating shaft.

  This embodiment is an application example to a volume controller. The volume controller of this embodiment is configured to change the voltage dividing point by sliding a slider in contact with the surface of the electric resistor by the rotating shaft, and the rotating shaft is fitted to the outer end portion. The rotary operation knob is rotated by hand operation, or is driven to rotate through a gear and a clutch by an electric drive controller based on a remote operation command, but this is a known component means. The illustration of the internal configuration is omitted.

  1 to 4, 10 is a volume adjuster, 20 is an electric drive operator that electrically drives the volume adjuster 10, and 30 is a rotation operation load that applies a rotation operation load torque to the rotating shaft 11 of the volume adjuster 10. A torque applying device 40 is a control circuit board.

  The rotating shaft 11 of the volume adjuster 10 is guided by a mounting screw and bearing 12 so as to pass through the outer shell of the main body so as to be rotatable, and is led out of the device. In general, the volume adjuster 10 holds the device operation panel between the outer shell of the main body and the tightening female screw 13 by passing the mounting screw and bearing 12 through the mounting hole of the device operation panel and screwing the tightening female screw 13. Thus, the volume adjuster 10 in this embodiment is screwed with the tightening female screw 13 through the mounting hole 311 of the assembly member 31 constituting a part of the rotational operation load torque applying device 30. Thus, it is attached to the assembly member 31 and is assembled by screwing it to the device operation panel of the device to be used using the assembly holes 312 provided at the four corners of the assembly member 31. A rotation operation knob 14 is attached to the outer end portion of the rotation shaft 11.

  The rotational operation load torque applying device 30 further includes an elastic ring holder 32, an elastic ring 33, an elastic ring pressing plate 34, and a set screw 35.

  The elastic ring holder 32 is formed in a shallow bottomed cylindrical bulged portion 321, a mounting flange 322 extending in the circumferential direction from the opening end of the bulged portion 321, and a bottom 321 a of the bulged portion 321. The rotating shaft through hole 323 and an elastic ring housing recess 321b formed on the outer surface of the bottom 321a so as to surround the rotating shaft through hole 323 are provided. The elastic ring holder 32 accommodates the mounting screw / bearing 12 and the tightening female screw 13 of the volume adjuster 10 attached to the assembly member 31 in the inner space of the bulging portion 321, and the rotating shaft 11 is inserted into the rotating shaft through hole. The attachment flange 322 is attached to the assembly member 31 with the attachment screw 324 so as to pass through the center of the H.323.

  The elastic body ring 33 is an annular elastic body formed of urethane rubber or silicon rubber and having excellent friction coefficient and wear resistance. The elastic body ring 33 is housed in the elastic body ring housing recess 321b of the elastic body ring holder 32 and extends in the axial direction. By pressing, it is elastically deformed so as to extend inward and outward in the radial direction. The elastic deformation in the outer peripheral direction presses against the outer peripheral wall surface of the elastic ring housing recess 321b, and the elastic deformation in the inner peripheral direction presses against the rotating shaft 11 to apply a frictional resistance force to the rotating shaft 11.

  The elastic ring pressing plate 34 is attached to the outer surface of the bottom portion 321a of the bulging portion 321 by a set screw 35 and presses the elastic ring 33 in the axial direction to be elastically deformed.

  As shown in FIGS. 5 and 6, the volume adjuster 10 to which the rotational operation load torque applying device 30 is added is assembled to the device operation panel 51 of the acoustic device 50 that is the device used via the assembly member 31. Thus, the rotary operation knob 14 attached to the outer end portion of the rotary shaft 11 is exposed on the front surface of the device operation panel 51. Specifically, the assembly screw 62 is passed through the assembly holes 312 provided at the four corners of the assembly member 31, and the interval cylinder piece 61 is interposed around the assembly screw 62, so that the tip of the assembly screw 62 is connected to the device operation panel 51. The assembly member 31 is assembled by being screwed into the inside of the device, and the rotary operation knob 14 attached to the outer end portion of the rotary shaft 11 is configured to protrude out of the device operation panel 51 from the volume adjuster assembly window 511 of the device operation panel 51. .

  Then, the volume adjuster 10 functions to adjust the volume by rotating the rotary shaft 11 by manually rotating the rotary operation knob 14 or by rotating the rotary shaft 11 with the electric drive operating device 20. In the hand rotation operation, the rotation load torque is applied to the rotation shaft 10 by the rotation operation load torque applying device 30, so that the rotation operation can be performed with a good touch.

By the way, in the rotational operation load torque applying device 30 of the present invention, the elastic ring 33 that applies the rotational load torque to the rotary shaft 10 is screwed to the mounting screw / bearing 12 of the volume controller 10 and the mounting screw / bearing 12. Since the tightening female screw 13 is supported by the bulging portion 321 of the elastic ring holder 34 so as to be accommodated in the inner space of the bulging portion 321, the length of the mounting screw and bearing 12 is increased. This rotational operation load torque applying device 30 is not affected by the size, and can be widely applied without being affected by the form of the volume controller 10.
The uncomfortable feeling of the backlash of the drive system felt by the manual operation is that the rotational operation load torque is applied by the frictional force applied by the elastic deformation of the elastic ring 33, so that the backlash with a small rotational torque is difficult to detect. Therefore, it is possible to absorb and relax the feeling of strangeness,
Further, the rattling feeling caused by the dimensional error between the rotating shaft 11 and the mounting screw / bearing 12 can be absorbed by the pressing force caused by the elastic deformation of the elastic ring 33.

  Although this embodiment has been described with reference to an application example to a volume controller, the rotational operation load torque applying device of the present invention is a volume controller, a sound quality adjuster, a rotary switch, and a rotary switch that rotate the rotary shaft. It can apply widely with respect to various rotating shafts.

DESCRIPTION OF SYMBOLS 10 ... Volume controller 11 ... Rotating shaft 12 ... Mounting screw and bearing 13 ... Tightening female screw 14 ... Rotation operation knob 20 ... Electric drive operation device 30 ... Rotation operation load torque application apparatus 31 ... Assembly member 311 ... Installation hole 312 ... Assembly hole 32 ... Elastic body ring holder 321 ... Swelling part 321a ... Bottom part 321b ... Elastic body ring housing recess 322 ... Mounting flange part 323 ... Rotating shaft through-hole 324 ... Mounting screw 33 ... Elastic body ring 34 ... Elastic body ring pressing plate 35 ... Set screw 40 ... Control circuit board 50 ... Acoustic device 51 ... Device operation panel 511 ... Volume adjuster assembly window 61 ... Interval cylinder piece 62 ... Assembly screw

Claims (3)

In the rotation operation load torque applying device configured to apply the rotation operation load torque to the rotation shaft by pressing the elastic ring against the rotation shaft rotatably supported by the mounting screw and bearing,
An assembly member for mounting the mounting screw and bearing;
Surrounding the rotating shaft through-hole, a bottomed cylindrical bulging portion, a mounting flange extending in the circumferential direction from the opening end of the bulging portion, a rotating shaft through hole formed in the bottom of the bulging portion An elastic ring holder having an elastic ring receiving recess formed on the outer surface of the bottom portion,
An elastic ring accommodated in the elastic ring accommodating recess of the elastic ring holder so as to surround the rotating shaft;
Rotating operation load torque application characterized by comprising an elastic ring pressing plate attached to the outer surface of the bottom of the elastic ring holder and pressing and deforming the elastic ring to press the rotating shaft. apparatus.   The rotary shaft according to claim 1, wherein the rotary shaft is a rotary shaft of a volume adjuster or a sound quality adjuster that is pivotally supported by a mounting screw and a bearing and penetrates the outer shell of the main body so as to rotate and is led to the outer shell of the main body. Rotating operation load torque applying device.   3. The rotational operation load torque applying device according to claim 1, wherein the elastic ring is made of urethane rubber or silicon rubber.

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