Vehicle shift device with lateral and longitudinal motion
11434990 · 2022-09-06
Assignee
Inventors
- Hiroki UEMURA (Aki-gun, JP)
- Yoshito HIRATA (Aki-gun, JP)
- Tomonori OHTSUBO (Aki-gun, JP)
- Masanori Taguchi (Aki-gun, JP)
- Kouji Tokunaga (Aki-gun, JP)
- Akira Michinaga (Aki-gun, JP)
Cpc classification
F16H59/0278
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16H59/10
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F16H59/10
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16H61/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A shift device comprises a shift lever and a shift knob. A driver moves the shift knob in a longitudinal direction when a shift change is conducted between plural traveling positions. The driver moves the shift knob, in a lateral direction, toward a driver's side when the shift change is conducted from a R position to a P position. When viewed from a vehicle rear side, the shift lever located at the traveling positions takes a first position where the shift lever is inclined, relative to its upright state, in a direction of separating its upper end portion with the shift knob from a driver's seat, whereas the shift lever located at the P position takes a second position where the shift lever is in the upright state or in a state which is closer to the upright state than the first position.
Claims
1. A shift device for a vehicle which is provided at a side portion beside a driver's seat, comprising: a shift lever provided to stand extending upwardly from a lower part of the side portion; and a shift knob attached to an upper end portion of the shift lever, where an operational force is inputted during a shift operation by a driver, wherein a first shift lane corresponds to a moving locus of the upper end portion of said shift lever when a shift change by the shift lever is conducted between all of plural traveling positions including a drive position, and a second shift lane corresponds to another moving locus of the upper end portion of said shift lever when another shift change by the shift lever is conducted only between one of the plural traveling positions and a parking position, said first shift lane extends in a vehicle longitudinal direction, and said second shift lane extends in a vehicle lateral direction such that the second shift lane approaches the driver's seat from the first shift lane, when viewed from one side of the vehicle longitudinal direction, said shift lever located at any one of the plural traveling positions takes a first position where the shift lever is inclined, relative to an upright state thereof where the shift lever is substantially vertical when the vehicle is substantially horizontal, in a direction of separating the upper end portion from the driver's seat, whereas said shift lever located at the parking position takes a second position where the shift lever is in the upright state or in a state which is closer to the upright state than said first position, when viewed from the one side of the vehicle longitudinal direction, an angle formed between said shift lever taking said first position and said shift lever taking said second position is less than 90 degrees, said shift knob has an upper face portion which expands in directions substantially perpendicular to an extension direction of said shift lever, and said upper face portion of the shift knob is a surface where a hand of the driver is put when the driver conducts the shift operation, and a push switch is disposed at the driver's-side side face portion of the shift knob.
2. The shift device for the vehicle of claim 1, wherein when viewed from one side of a vehicle vertical direction, said plural traveling positions and said parking position are respectively located at separated positions from each other, and in a case where said shift lever takes a specified position, said specified position taken by the shift lever is maintained until the driver conducts a new shift operation.
3. The shift device for the vehicle of claim 2, wherein said plural traveling positions include a reverse position and a neutral position in addition to the drive position; the reverse position, the neutral position, and the drive position are arranged in order from a front side of the vehicle longitudinal direction in said first shift lane; and said one of the plural traveling positions is the reverse position.
4. The shift device for the vehicle of claim 3, wherein when viewed from the one side of the vehicle longitudinal direction, an angle formed between said shift lever taking said first position and said shift lever taking said second position is 10 degrees or greater.
5. The shift device for the vehicle of claim 4, wherein said shift lever located at the parking position takes the second position where the shift lever is in the upright state.
6. The shift device for the vehicle of claim 5, wherein a passenger seat is provided to be spaced apart from the driver's seat in the vehicle lateral direction, said shift device for the vehicle is provided between the driver's seat and the passenger seat, and an inclination angle of said shift lever taking said first position is set such that said shift knob of the shift lever is positioned more closely to the passenger seat than the driver's seat.
7. The shift device for the vehicle of claim 5, wherein a passenger seat is provided to be spaced apart from the driver's seat in the vehicle lateral direction, a center console is provided between the driver's seat and the passenger seat, said shift lever is provided such that the upper end portion thereof extends upwardly beyond an upper face portion of said center console, and an inclination angle of the shift lever taking said first position is set such that a specified gap is secured between said shift knob and said center console.
8. The shift device for the vehicle of claim 7, wherein said shift device for the vehicle is a shift-by-wire type of electrical shift device and further comprises a shift-device base which stores a rotational center of said shift lever therein, said shift-device base is disposed in a bottom section of said center console, and a space is generated between the bottom section of the center console and a floor of the vehicle.
9. The shift device for the vehicle of claim 1, wherein said plural traveling positions include a reverse position and a neutral position in addition to the drive position; the reverse position, the neutral position, and the drive position are arranged in order from a front side of the vehicle longitudinal direction in said first shift lane; and said one of the plural traveling positions is the reverse position.
10. The shift device for the vehicle of claim 1, wherein when viewed from the one side of the vehicle longitudinal direction, an angle formed between said shift lever taking said first position and said shift lever taking said second position is 10 degrees or greater.
11. The shift device for the vehicle of claim 1, wherein said shift lever located in the parking position takes the second position where the shift lever is in the upright state.
12. The shift device for the vehicle of claim 1, wherein a passenger seat is provided to be spaced apart from the driver's seat in the vehicle lateral direction, said shift device for the vehicle is provided between the driver's seat and the passenger seat, and an inclination angle of said shift lever taking said first position is set such that said shift knob of the shift lever is positioned more closely to the passenger seat than the driver's seat.
13. The shift device for the vehicle of claim 1, wherein a passenger seat is provided to be spaced apart from the driver's seat in the vehicle lateral direction, a center console is provided between the driver's seat and the passenger seat, said shift lever is provided such that the upper end portion thereof extends upwardly beyond an upper face portion of said center console, and an inclination angle of the shift lever taking said first position is set such that a specified gap is secured between said shift knob and said center console.
14. The shift device for the vehicle of claim 2, wherein a passenger seat is provided to be spaced apart from the driver's seat in the vehicle lateral direction, said shift device for the vehicle is provided between the driver's seat and the passenger seat, and an inclination angle of said shift lever taking said first position is set such that said shift knob of the shift lever is positioned more closely to the passenger seat than the driver's seat.
15. The shift device for the vehicle of claim 2, wherein a passenger seat is provided to be spaced apart from the driver's seat in the vehicle lateral direction, a center console is provided between the driver's seat and the passenger seat, said shift lever is provided such that the upper end portion thereof extends upwardly beyond an upper face portion of said center console, and an inclination angle of the shift lever taking said first position is set such that a specified gap is secured between said shift knob and said center console.
16. The shift device for the vehicle of claim 12, wherein a center console is provided between the driver's seat and the passenger seat, said shift lever is provided such that the upper end portion thereof extends upwardly beyond an upper face portion of said center console, and an inclination angle of the shift lever taking said first position is set such that a specified gap is secured between said shift knob and said center console.
17. The shift device for the vehicle of claim 13, wherein said shift device for the vehicle is a shift-by-wire type of electrical shift device and further comprises a shift-device base which stores a rotational center of said shift lever therein, said shift-device base is disposed in a bottom section of said center console, and a space is generated between the bottom section of the center console and a floor of the vehicle.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1)
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DETAILED DESCRIPTION OF THE INVENTION
(11) Hereafter, an embodiment of the present invention will be described referring to the drawings. The embodiment described below exemplifies just one example of the present invention, and the present invention should not be limited to this, except its substantial structures.
(12) 1] Structure of Inside of Cabin of Vehicle
(13)
(14) As shown in
(15) A steering wheel 4 is provided in front of the driver's seat 2. The steering wheel 4 is located at a level (height position) around a driver's chest when the driver is seated in the driver's seat 2. Further, in front of the driver's seat 2 are disposed an accelerator (acceleration pedal) 5 and a brake pedal 6 at a floor portion. The accelerator 5 is arranged at a position where a right foot of the driver seated in the driver's seat 2 is put, and the brake pedal 6 is arranged on the left side of the accelerator 5.
(16) A windshield (front window) 7 is provided at a front portion of the cabin 1a. The windshield 7 is made of laminated glass, for example. An instrument panel 8 is provided in an area from a lower end portion of the windshield 7 to a front side of the steering wheel 4. The instrument panel 8 is provided to extend, in a vehicle width direction, from a front side of the driver's seat to a front side of the passenger seat 3. The instrument panel 8 includes a meter cluster portion and the like which are located in front of the steering wheel 4.
(17) A center console 9 and an armrest 10 are arranged on a floor between the driver's seat 2 and the passenger seat 3. Various input devises regarding driving operations, such as a shift device 11 for the vehicle, are disposed at the center console 9. The armrest 10 is arranged on a rear side of the center console 9, which is a place where an elbow of a forearm of a passenger seated in the driver's seat 2 or the passenger seat 3 is placed.
(18) 2] Structure of External Appearance of Shift Device for Vehicle
(19)
(20) As shown in
(21) A shift lane 15a is provided at the shift-device base 15 so as to correspond to a moving locus of the shift lever 12 operated by the driver. The vehicle 1 of the present embodiment adopts a so-called stationary type of shift device. Accordingly, when the shift lever 12 is moved to a specified position by the operation of the driver, the shift position of the shift lever 12 is maintained at this specified position until the shift operation by the driver is conducted newly.
(22) Further, an indicator portion 15b is provided at a part of the shift-device base 15 which is located on the driver side of a place where the shift lever 12 projects. The driver can recognize the shift position through indication of the indicator 15b as well.
(23) Herein, the shift device 11 of the present embodiment is an electrical shift device (shift-by-wire type of shift device).
(24) 3] Structure Regarding Rotation of Shift Lever
(25)
(26) As shown in
(27) The shift lever 12 is configured to be rotatable so that the upper end portion of the shift lever 12 where the shift knob 13 is attached can be moved in the longitudinal direction and in the lateral direction by the shift operation conducted by the driver with the hand which is put on the shift knob 13. A rotational center 12a of the shift lever 12 is located at an inside part 15c of the shift-device base 15. That is, the shift device 11 of the present embodiment is a so-called short stroke type of shift device.
(28) 4] Arrangement of Shift Device at Floor
(29)
(30) As shown in
(31) In the vehicle 1 provided with the above-described shift device 11, the driver can easily recognize that the shift device 11 is the electrical shift device. Further, this is superior in the designability of the cabin 1a as well.
(32) 5] Shift Pattern
(33)
(34) As shown in
(35) The shift lane 15a provided along the moving locus of the shift lever 12 comprises a longitudinal-direction lane 15a1 which corresponds to the moving of the shift lever 12 among the R position 15r, the N position 15n, and the D position 15d and a lateral-direction lane 15a2 which corresponds to the moving of the shift lever 12 between the R position 15r and the P position 15p. The longitudinal-direction lane 15a1 and the lateral-direction lane 15a2 are continuous to each other at the R position 15r, and the shift lane 15a is nearly inverse-L shaped as a whole.
(36) In the present embodiment, there is a case where the R position 15r, the N position 15n, and the D position 15d are referred to as a “traveling position.”
(37) The driver conducts the shift operation described below when starting to drive the stopped (parked) vehicle 1.
(38) First, the driver holds (grips) the shift knob 13 in a state where the brake pedal 6 is pressed, and moves it to the right with the driver's thumb, pushing the push switch 14. Thereby, the shift position is changed from the P position 15p to the R position 15r.
(39) Next, the driver moves the shift knob 13 rearwardly, hooking the driver's middle finger or third finger on a front end portion of the shift knob 13. Thereby, the shift position is changed from the R position 15r to the N position 15n and then to the D position 15d.
(40) Finally, the driver can drive (start) the vehicle 1 forward by pressing the accelerator 5, releasing the brake pedal 6.
(41) Meanwhile, when the driver stops the vehicle 1 and changes the shift position to the P position 15p, the following shift operation is conducted.
(42) First, the driver presses the bake pedal 6, releasing the accelerator 5. Thereby, the driver pushes a rear end portion of the shift knob 13 forwardly with the driver's hand after the vehicle 1 has stopped. Thereby, the shift position is changed from the D position 15d to the N position 15n.
(43) Next, the driver presses the push switch 14, holding the shift knob 13, in a state where the brake pedal 6 is pressed, and changes the shift position from the N position 15n to the R position 15p.
(44) Finally, the driver pushes a right-side side portion of the shift knob 13 to the left with the driver's hand, and changes the shift position from the R position 15r to the P position 15p. Then, the driver applies a parking brake.
(45) 6] Position Change of Shift Lever between P Position and Traveling Positions
(46)
(47) As shown in
(48) Meanwhile, when the shift lever 12 takes the second position Pos2, a center line L2 of the shift lever 12 is in the upright state or in a state which is closer to the upright state than the above-described center line L1. In the vehicle 1 according to the present embodiment, the center line L2 is in the upright state when the vehicle 1 stops at a horizontal place.
(49) In the shift device 11 of the present embodiment, an angle θ1 formed between the center line L1 and the center line L2 is set to be 10 degrees or greater. Specifically, the shift device 11 of the present embodiment is configured such that the angle θ1 is 10 degrees, for example.
(50) 7] Muscles of Arm of Person (Driver)
(51)
(52) As shown in
(53) Meanwhile, when the shift operation is conducted from the P position 15p to the R position 15r with the hand 504 put on the shift knob 13, pushing the push switch 14, the muscle 505 of the shoulder, the muscle 506 of the upper arm 502, and the muscle 507 of the forearm 503 are used.
(54) Herein, as shown in
(55) Next, as shown in
(56) Meanwhile, when the shift operation is conducted from the N position 15n to the D position 15d (rearwardly) with the middle finger, the third finger, or the like of the hand 504 which are hooked on the front end portion of the shift knob 13, the shoulder's muscle 505 and the muscle 509 of the upper arm 502 are used.
(57) 8] Fatigue of Driver in Shift Operation
(58) Fatigue of the driver in the shift operation will be described referring to
(59) (1) Fatigue Reduction by Shift Pattern
(60) As described above, the shift device 11 according to the present embodiment is configured such that the shift pattern (shift lane 15a) is of the inverse-L shape and the shift knob 13 is moved in the lateral direction in the shift operation between the P position 15p and the R position 15r.
(61) Meanwhile, in the shift device 91 according to the reference example, a P position 95p, an R position 95r, an N position 95n, and a D position 95d are arranged in order from the front side to the rear side as shown in
(62) When the shift operation is conducted by using the shift device 91 having the I-shaped shift lane 95a according to the reference example, the fatigue of the arm 501 seems to be relatively large, compared to the shift deice 11 having the inverse-L shaped shift lane 15a according to the present invention. That is, when the shift operation is conducted by the shift device 91 from the N position 95n to the R position 95r, the shift knob is pushed forwardly with the hand contacting with the rear end portion of the shift knob. Herein, it is necessary for the driver to apply a rearward force to the arm in the latter half of operation such that the shift lever has not reached the P position 95p, passing through the R position 95r.
(63) Likewise, when the shift operation is conducted from the P position 95p to the R position 95r, while the shift knob is pulled rearwardly with the middle finger and the third finger of the hand hooked on the front end portion of the shift knob, it is necessary to apply a forward force to the arm in the latter half of operation such that the shift lever has not reached the N position 95n or the D position 95d, passing through the R position 95r. There is a concern that the repeated shift operation by the driver described above in the long drive or the like may cause accumulation of the fatigue.
(64) Meanwhile, according to the shift device 11 with the inverse-L shaped shift lane 15a of the present embodiment, as shown in
(65) Likewise, when the shift operation is conducted from the P position 15p to the R position 15r by the shift device 11 of the present embodiment, the driver can simply move the shift knob 13 to the right up to a right end portion of the lateral-direction lane 15a2 with the thumb of the hand pushing a left-side side face of the shift knob, so that it can be properly prevented that the shift lever reaches the N position 15n and the D position 15d mistakenly. Accordingly, in the vehicle 1 provided with the shift device 11 according to the present embodiment, the fatigue reduction can be properly attained, compared to a case where a vehicle provided with the shift device 91 according to the reference example.
(66) (2) Fatigue Reduction by Position of Shift Lever
(67) As described above referring to
(68) Specifically, when the shift operation is conducted among the R position 15r, the N position 15n, and the D position 15d, the driver operates with the hand put on the upper face portion 13a of the shift knob 13. Herein, when the shift lever 12 is located at the first position Pos1, the upper face portion 13a of the shift knob 13 is inclined outwardly relative to a horizontal surface by the angle θ1, when viewed from the driver.
(69) In general, when the hand is put on a horizontal base (rest), the person gets more relaxed in a case where the hand is inclined such that a thumb side is slightly raised and a palm of the hand is directed inwardly toward a body side than a case where the palm of the hand is positioned horizontally along the base. In other words, if the person puts the hand on the horizontal base, such as a desk, and tries to make the palm of the hand contact with a horizontal surface of the base tightly, the forearm 503 is twisted in such a manner that the ulna 511 and the radius 512 cross each other, so that the muscle of the arm 501 is used. Therefore, according to the shift device 11 of the present invention in which the upper face portion 13a of the shift knob 13 of the shift lever 12 located at the traveling positions 15r, 15n, 15p is inclined relative to the horizontal by the angle θ1, the driver can put the hand on the upper face portion 13a of the shift knob 13 with the arm 501 which is in the more relaxed state during the vehicle traveling.
(70) Thus, the shift device 11 of the present embodiment can reduce the fatigue of the driver properly during the vehicle driving.
(71) 9] Supplementation regarding Relationships between Position of Shift Lever and Driver's Fatigue
(72)
(73) First, as shown in
(74) “The Japanese Journal of Rehabilitation Medicine Vol. 53 No. 10 2016, pp. 758-761; Kunihiro Oka” has the discerption about the “three dimensional movement of the elbow joint” of “The elbow joint can have the forearm rotational movement at the humeroulnar joint, the humeroradial joint, and the proximal radioulnar joint. It is necessary that the range of motion of the elbow joint is the bending 30—130°, the inwardly turning 80°, and the outwardly turning 80° in order to ensure a normal daily life having the motion arrange of the elbow joint of the stretch 0—10°, the bending 140—150°, the inwardly turning 85°, and the outwardly turning 90°.”
(75) As shown in
(76) Thus, based on the above-described view, according to the present embodiment, the angle θ11 is set to be 80 degrees or smaller, and the angle θ1 of the shift lever 12 taking the first position Pos1 is set to be 10 degrees or larger. Herein, as described above, the angle θ1 is set at 10 degrees as an example in the present embodiment.
(77) Herein, considering a body-size difference or an individual difference of the driver, the angle θ504 may be set at 82 degrees. Accordingly, the angle θ11 can be set to be 82 degrees or smaller, and the angle θ1 of the shift lever 12 taking the first position Pos1 can be set to be 8 degrees or larger.
(78) 10] Upper Limit of Inclination Angle of Shift Lever at Traveling Positions
(79)
(1) FIRST EXAMPLE
(80) As shown in
(81) By controlling the inclination-angle upper limit θ2 of the shift lever 12 as described above, the shift knob 13 is prevented from protruding toward the side of the passenger seat 3 even if the vehicle travels with the traveling positions 15r, 15n, 15d of the shift position, so that the passenger seated in the passenger seat can feel comfortable.
(2) SECOND EXAMPLE
(82) As shown in
(83) By controlling the inclination-angle upper limit θ3 of the shift lever 12 as described above, the driver can be prevented from getting the finger caught between the shift knob 13 and the center console 9 even if the vehicle travels with the traveling positions 15r, 15n, 15d of the shift position.
(84) [Modifications]
(85) While the above-described embodiment exemplifies the left-handle vehicle 1, the present invention is applicable to a right-handle vehicle as well. In this case, the same effects as the above-described embodiment can be obtained just by making right-and-left relationships opposite.
(86) While the above-described embodiment adopts the stationary type of shift device 11, the present invention can adopt a momentary type of shift device as well. In this case, the same effects as the above-described embodiment can be obtained just by configuring the shift lever located at the traveling position to be inclined by a specified angle relative to the shift lever located at the parking position.
(87) While the above-described embodiment is configured such that the traveling position has three positions of the R position, the N position, and the D position, the present invention is applicable to a vehicle provided with the traveling position which has four or more positions including the R position, the N position, and the D position as well. For example, a S position, a B position, or the like may be provided.
(88) While the above-described embodiment adopts the short-stroke type of shift device 11 in which the shift lever 12 is relatively short, the present invention is applicable to a long-stroke type of shift device in which the shift lever is relatively long as well.
(89) While the above-described embodiment is configured such that the space SP is generated between the floor 1b and the part of the bottom section 9c of the portion of the center console 9 where the shift-device base 15 is inserted, the present invention does not necessarily require that a space is generated at this part.
(90) While the above-described embodiment is configured such that the push switch 14 is provided at the left-side portion (driver's-side side face portion) of the shift knob 13, the present invention should not be limited to this regarding the arrangement of the push switch. For example, the push switch may be provided at a front face portion, an front part of the upper face portion, or the like of the shift knob.
(91) While the above-described embodiment is configured such that the indicator portion 15b is provided at the shift-device base 15 of the shift device 11, the present invention should not be limited to this regarding the arrangement of the indicator portion. For example, the indicator portion may be provided at a meter cluster panel, an instrument panel, or the like.