Multi-directional input apparatus
View Patent ↗A multi-directional input apparatus includes a swinging member (first drive lever) having a through hole and an operating lever including a drive shaft which is inserted through the long hole. When the operating lever is tilted in a direction that crosses an axial direction of the swinging member, the swinging member is rotated by the drive shaft. A leaf spring is attached to the swinging member, and the drive shaft of the leaf spring is elastically biased against a side surface of an inner wall of the long hole. The leaf spring includes a bent portion which extends substantially parallel to the axial direction of the swinging member and which is in elastic contact with the drive shaft. A hole at which the long hole is completely exposed is formed in the leaf spring.
1. A multi-directional input apparatus comprising:
an operating member including a drive shaft;
a base configured to support the operating member such that the operating member is tiltable in multiple directions;
a swinging member having a frame portion, the frame portion having a first elongated hole through which the drive shaft extends, the swinging member being supported on the base such that the swinging member is rotatable around a rotating axis perpendicular to a longitudinal axis of the drive shaft, and
biasing means including a spring member which is a leaf spring provided on the swinging member, the leaf spring having an attachment portion partially surrounding the frame portion of the swinging member and a bent portion extending from the attachment portion and extending substantially along a longitudinal direction of the drive shaft and being in elastic contact with the drive shaft, the attachment portion having a second elongated hole through which the drive shaft extends, the second elongated hole being larger than the first elongated hole, the first and second elongated holes each having a longitudinal direction parallel to the rotating axis of the swinging member,
wherein the swinging member is tilted in cooperation with operation of the operating member and when the operating member is tilted in a direction crossing the rotating axis of the swinging member, the swinging member is rotated by the drive shaft, wherein the biasing means is configured to elastically bias the drive shaft against a side surface of an inner wall of the first elongated hole.
2. The multi-directional input apparatus according to claim 1 , wherein a tongue piece of the leaf spring is disposed between the attachment portion and an end of the driving shaft and elastically supports the driving shaft at a position closer to the end of the driving shaft than the attachment portion.
3. The multi-directional input apparatus according to claim 1 , wherein the frame portion of the swinging member is disposed between the attachment portion of the leaf spring and a contact area of the bent portion where the bent portion is in elastic contact with the drive shaft.
4. The multi-directional input apparatus according to claim 1 , wherein the attachment portion of the leaf spring and the frame portion of the swinging member each define an elongated shape having a longitudinal axis parallel to the rotating axis of the swinging member.