Shifting device

• US 7,650,811 B2
• Filed: 09/07/2007
• Issued: 01/26/2010
• Est. Priority Date: 08/20/2002
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Tokai RIKA Denki Seisakusho
• Original Assignee: Kabushiki Kaisha Tokai RIKA Denki Seisakusho
• Inventors: Taniguchi, Masahiro, Suzuki, Noriyuki, Matsui, Kazuhito, Shoji, Osamu
• Primary Examiner(s): Hannon; Thomas R
• Assistant Examiner(s): KRAUSE, JUSTIN MITCHELL
• Application Number:
  US11/851,980
• Publication Number:
  US 20080006113A1
• Time in Patent Office: 872 Days
• Field of Search: 744/731, 744/731.2, 744/731.8, 744/732.1, 744/733, 744/733.3
• US Class Current: 74/473.12
• CPC Class Codes: F16H 59/0204 for automatic transmissions with means for range selection and manual shifting, e.g. range selector with tiptronic
• CPC Class Codes: F16H 59/105 consisting of electrical switches or sensors
• CPC Class Codes: Y10T 74/20018 Transmission control
• CPC Class Codes: Y10T 74/2003 Electrical actuator
• CPC Class Codes: Y10T 74/20067 Control convertible between automatic and manual operation
• CPC Class Codes: Y10T 74/20085 Restriction of shift, gear selection, or gear engagement
• CPC Class Codes: Y10T 74/20159 Control lever movable through plural planes
• CPC Class Codes: Y10T 74/20201 Control moves in two planes

Abstract

A shifting device includes a housing, a shift lever, and a sensor unit. The shift lever is moved along frontward or rearward and leftward or rightward to select one of shift positions. The sensor unit is of a non-contact type and detects the selected shift position. The sensor unit includes a plurality of sensors and a magnet. The relative positions of the sensors and the magnet are variable. The sensor unit detects the selected shift position according to the relative positions. According to movement of the shift lever, at least one of the group of the sensors and the magnet is moved along a first movement axis and a second movement axis. The first and second movement axes extend in different directions.

Claims

1. A shifting device, comprising:

a housing;

a shift lever supported by the housing, wherein the shift lever is movable along a first manipulation axis in a first direction and in a second direction opposite to the first direction, and further along, at least, a second manipulation axis in a third direction, for selecting one of a plurality of shift positions along each of the manipulation axes, where the first and second manipulation axes are non-parallel;

a non-contact position detecting mechanism capable of detecting said plurality of shift positions of the shift lever along each of the manipulation axes, wherein the position detecting mechanism includes a plurality of detecting devices and a reflector member, wherein relative positions between the detecting devices and the reflector member are variable, and wherein the position detecting mechanism detects a selected shift position according to the relative positions; and

a moving mechanism, wherein, according to movement of the shift lever, the moving mechanism moves at least one of the plurality of detecting devices and the reflector member at least along a first movement axis and a second movement axis, the first and second movement axes are non-parallel,

wherein each of the detecting devices includes a pair of a light emitting portion and a photoreceptor portion, wherein the reflector member reflects light emitted by each light emitting portion so that reflected light is detected by a corresponding photoreceptor portion, and wherein the reflector member has a plurality of holes to selectively reflect or pass light through according to the relative positions between the detecting devices and the reflector member.

2. The shifting device according to claim 1, wherein each detecting device outputs two different types of signals according to the relative positions between the detecting devices and the reflector member, wherein the holes are formed such that a combination pattern of signals outputted by the detecting devices is changed according to the selected shift position of the shift lever, and wherein the holes are formed such that, even if one of the detecting devices malfunctions, the combination pattern of the signals of the remainder of the detecting devices is changed according to the selected shift position.

3. The shifting device according to claim 2, wherein the holes are formed such that the signals outputted when the shift lever is at a forward position are different from the signals outputted when the shift lever is at a reverse position.

4. The shifting device according to claim 1, wherein the moving mechanism includes a first holder and a second holder, wherein the first holder accommodates one of the plurality of detecting devices and the reflector member and allows the accommodated detecting device or reflector member to move relative to the first holder along the first movement axis, and wherein the second holder accommodates the first holder and allows the first holder to move relative to the second holder along the second movement axis.

5. The shifting device according to claim 4, wherein, when the shift lever is moved along the first manipulation axis, the detecting devices or the reflector member are moved along the first movement axis in the first holder.

6. The shifting device according to claim 5, wherein the first manipulation axis is parallel to the first movement axis.

7. The shifting device according to claim 4, wherein, when the shift lever is moved along the second manipulation axis, the first holder is moved relative to the second holder along the second movement axis.

8. The shifting device according to claim 7, wherein the second manipulation axis is different from the second movement axis.

9. The shifting device according to claim 1, wherein, when the shift lever is moved along the first manipulation axis, the moving mechanism moves at least one of the group of the detecting devices and the reflector member along the first movement axis, and wherein, when the shift lever is moved along the second manipulation axis, the moving mechanism moves at least one of the detecting devices and the reflector member along the second movement axis.

10. The shifting device according to claim 1, wherein, according to movement of the shift lever, the moving mechanism moves one of the plurality of detecting devices and the reflector member relative to the other in a single plane including the first and second movement axes.

11. The shifting device according to claim 10, wherein, according to movement of the shift lever, the moving mechanism moves the reflector member relative to the plurality of detecting devices in the single plane.