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CN-113471006-B - Operation knob device

CN113471006BCN 113471006 BCN113471006 BCN 113471006BCN-113471006-B

Abstract

The operation knob device (10) is provided with an annular holder (20), an annular rotating member (25) which is arranged on a holding portion (20 a) in a manner of being allowed to rotate around an axis (A), an annular knob (30) which is allowed to relatively move relative to the rotating member (25) in a direction along the axis (A) and is limited to relatively move relative to the rotating member (25) in a circumferential direction around the axis (A), a first transmission member (36) which is arranged in a manner of being linked with the knob (30) and moves along the axis (A) and has conductivity, a second transmission member (38) which is installed in a manner of being integrally rotated with the rotating member (25) and has conductivity, and a resin film (50) which is sandwiched between the first transmission member (36) and the display panel (1) and between the second transmission member (38) and the display panel (1). Thereby, the transferability of the pressing operation and the rotating operation is improved.

Inventors

  • OGASAWARA TSUKASA
  • ITO KENZI

Assignees

  • 株式会社有信
  • 株式会社有信

Dates

Publication Date
20260421
Application Date
20210322
Priority Date
20200330

Claims (7)

  1. 1. An operation knob device, wherein, The operation knob device is provided with: An annular holder having an annular holding portion and disposed adjacent to a display panel such that an axis of the holding portion intersects the display panel; An annular rotating member having a first end facing the display panel and a second end located opposite to the display panel with respect to the first end, and disposed on the holding portion so as to be rotatable about the axis; An annular knob disposed on the second end side of the rotary member so as to be allowed to move relative to the rotary member in a direction along the axis and so as to be restricted from moving relative to the rotary member in a circumferential direction around the axis; A first transmission member which is disposed on the first end side of the rotator so as to move along the axis in conjunction with the knob, and which has conductivity; a second transmission member rotatably mounted to the first end integrally with the rotator and having conductivity, and And a resin film which covers the display panel side of the first and second transfer members and has a thickness smaller than the minimum thickness of the wall of the resin molded product that can be produced by injection molding, wherein the thickness of the resin film is 0.05mm or more and 0.2mm or less.
  2. 2. The operation knob device according to claim 1, wherein, The rotating member is disposed inside the holder, The knob has a cylindrical inner wall portion disposed on the inner side of the rotator, and a cylindrical outer wall portion disposed on the outer side of the retainer, The first transmission member and the second transmission member are disposed between the inner wall portion and the outer wall portion.
  3. 3. The operation knob device according to claim 2, wherein, The operation knob device includes an annular ring member disposed between the first and second transmission members and the inner wall portion, The membrane is annular, the retainer is fixedly connected to the outer peripheral portion, and the ring member is fixedly connected to the inner peripheral portion.
  4. 4. The operation knob device according to claim 2, wherein, The membrane is in the shape of a ring, An annular wall portion protruding between the first and second transmission members and the inner wall portion is provided on the inner periphery of the film.
  5. 5. The operation knob device according to any one of claims 2-4, wherein, An annular wall portion protruding so as to be located outside the holder and fixedly connected to an outer peripheral surface of the holder is provided on an outer periphery of the film.
  6. 6. The operation knob device according to any one of claims 1-4, wherein, The film is provided with a hole penetrating at a position contacting the first transmission member and the second transmission member.
  7. 7. The operation knob device according to claim 5, wherein, The film is provided with a hole penetrating at a position contacting the first transmission member and the second transmission member.

Description

Operation knob device Technical Field The present invention relates to an operation knob device. Background For vehicle-mounted products such as navigation devices and center displays, display panels having a capacitive touch detection function are generally used. In the case of operating the in-vehicle product, it is necessary to touch a finger on a predetermined operation area of the display panel having no irregularities, and therefore, the user needs to confirm the position of the operation area with eyes. Patent document 1 discloses an operation knob device disposed on a surface of a display panel. The operation knob device includes a holder fixed to the display panel, a push button, and a rotary knob. Since the capacitance of the display panel changes due to the proximity of the transmission member in the button, the display panel can detect the pressing operation of the button. The position where the capacitance changes is moved by the transmission member in the knob, so that the display panel can detect the rotation operation of the knob. The operation knob device protrudes from the display panel, so that the user can operate the in-vehicle product without viewing the display panel. Prior art literature Patent literature Patent document 1 International publication No. 2015/174092 In the operation knob device of patent document 1, since the partition wall of the holder made of resin is interposed between the transmission member and the display panel, the change in electrostatic capacitance of the display panel due to the transmission member is small. Therefore, the operation knob device of patent document 1 has room for improvement in terms of detectability of operation by the display panel, that is, transmissibility of operation by the transmission member. Disclosure of Invention The invention provides an operation knob device capable of improving the transmissibility of pressing operation and rotating operation. An operation knob device is provided with an annular holder having an annular holding portion and disposed adjacent to a display panel so that an axis of the holding portion intersects the display panel, an annular rotator having a first end facing the display panel and a second end located opposite to the first end and disposed on the holding portion so as to be rotatable about the axis, an annular knob which is disposed on the second end side of the rotator so as to be rotatable about the axis relative to the rotator and is restrained from moving relative to the rotator in a circumferential direction centering around the axis, a first transmission member disposed on the first end side of the rotator so as to move along the axis in conjunction with the knob, and having conductivity, a second transmission member which is mounted on the first end side of the rotator so as to rotate integrally with the rotator, and having conductivity, and a first transmission member which covers the first transmission member and the first display panel. Since the film is thinner and allows electric charges to pass through easily as compared with the wall of the resin molded product by injection molding, the electrostatic capacitance of the display panel 1 which changes due to the first or second conductive transfer member can be increased. Therefore, the detectability of the display panel, that is, the transmissibility of the knob operation can be improved. In addition, even if the user wears a glove made of an insulating material, for example, the display panel can detect the operation of the knob by the first transmission member or the second transmission member. Specifically, when the knob is pressed, the first transmission member disposed on the first end side of the rotator moves integrally toward the film attached to the display panel. In the display panel, the electrostatic capacitance changes due to the proximity of the first conductive member, so that the pressing operation of the knob can be detected. When the knob is rotated, the rotator and the second transmission member attached to the first end side of the rotator are integrally rotated. In the display panel, the rotation of the second conductive member changes the capacitance to move the position, so that the rotation operation of the knob can be detected. The first transmission member and the second transmission member do not contact the display panel through the film, and thus damage of the display panel caused by operation of the knob can be prevented. Further, the sound generated by the collision of the first transmission member with the display panel at the time of the pressing operation of the knob can be reduced. Effects of the invention In the operation knob device of the present invention, the transmissibility of the pressing operation and the rotating operation of the knob can be improved. Drawings Fig. 1 is a perspective view of an operation knob device according to an embodiment of the present invention disposed on a display panel.