Patents by Inventor Masayuki Tokumo
Masayuki Tokumo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11168784Abstract: A vehicle shifter device for ensuring high safety by suppressing misoperation by a driver. The vehicle shifter device includes a shift lever and a lock plate. The shift lever has a cylindrical lever body, a rod movable in an axial direction in a cylinder of the lever body, and a first lock lever and a second lock lever connected to the rod. The first lock lever is substantially L-shaped in plan view. The lock plate has a first extension portion extending in an X-direction and a second extension portion, integrally formed with the first extension portion, that extends in a Y-direction. In addition, the lock plate has a plurality of concave parts. In the lock plate, the projection height of a convex part between the concave part and the concave part is larger than the projection height of a convex part between the concave part and the concave part.Type: GrantFiled: June 20, 2019Date of Patent: November 9, 2021Assignee: MAZDA MOTOR CORPORATIONInventors: Takenaga Yohsuke, Daiki Nakata, Toshihiro Matsuoka, Masayuki Tokumo
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Patent number: 10634242Abstract: A vehicular shifter device includes: an operation member; a body portion which supports the operation member to be shiftable from a home position in a predetermined direction, and which causes the operation member after a shift operation to automatically return to the home position; and a control means which controls the range of a transmission on the basis of a shift operation of the operation member. The control means sets the range to a neutral range when the operation member is shifted from the home position in the predetermined direction. The control means switches the range from the neutral range to a travel range when the operation member is shifted from the home position in the predetermined direction again after the shift operation.Type: GrantFiled: August 12, 2015Date of Patent: April 28, 2020Assignee: MAZDA MOTOR CORPORATIONInventors: Yoh Yamazaki, Masayuki Tokumo
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Publication number: 20190390763Abstract: A vehicle shifter device for ensuring high safety by suppressing misoperation by a driver. The vehicle shifter device includes a shift lever and a lock plate. The shift lever has a cylindrical lever body, a rod movable in an axial direction in a cylinder of the lever body, and a first lock lever and a second lock lever connected to the rod. The first lock lever is substantially L-shaped in plan view. The lock plate has a first extension portion extending in an X-direction and a second extension portion, integrally formed with the first extension portion, that extends in a Y-direction. In addition, the lock plate has a plurality of concave parts. In the lock plate, the projection height of a convex part between the concave part and the concave part is larger than the projection height of a convex part between the concave part and the concave part.Type: ApplicationFiled: June 20, 2019Publication date: December 26, 2019Applicant: MAZDA MOTOR CORPORATIONInventors: Takenaga YOHSUKE, Daiki NAKATA, Toshihiro MATSUOKA, Masayuki TOKUMO
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Publication number: 20190072177Abstract: A vehicle shifting device is a shift-by-wire vehicle shifting device for changing a shift-range of a vehicle among a plurality of shift-ranges including a parking range, a reverse range, a neutral range, and a drive range based on manipulation made by a driver. The vehicle shifting device includes a shift lever that is set to positions corresponding to the plurality of shift-ranges, a detector that detects the position of the shift lever, and a lever holder that keeps the shift lever in one of the positions while the shift-range is kept in a predetermined shift-range, the one of the positions corresponding to the predetermined shift-range.Type: ApplicationFiled: August 30, 2018Publication date: March 7, 2019Applicant: MAZDA MOTOR CORPORATIONInventors: Masayuki TOKUMO, Tomonori OHTSUBO, Hiroki UEMURA, Yoshito HIRATA, Kouji TOKUNAGA
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Patent number: 10124672Abstract: In a pedal structure of an automotive vehicle which includes a brake pedal and an accelerator pedal which are provided at a vehicle body side by side in a vehicle width direction, the accelerator pedal comprises an accelerator pedal body to receive a pressing operation by a right foot, a hinge portion pivotally supporting a lower end of the accelerator pedal body, and a pedal base supporting the accelerator pedal body via the hinge portion, and a heel support portion to support the right foot's heel is provided at the pedal base. The heel support portion is positioned on a left side of and adjacently to the hinge portion and spaced apart forward from the hinge portion by a specified distance.Type: GrantFiled: February 10, 2017Date of Patent: November 13, 2018Assignee: MAZDA MOTOR CORPORATIONInventors: Koji Tabata, Yoh Yamazaki, Masayuki Tokumo
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Publication number: 20180180173Abstract: A vehicular shifter device includes: an operation member; a body portion which supports the operation member to be shiftable from a home position in a predetermined direction, and which causes the operation member after a shift operation to automatically return to the home position; and a control means which controls the range of a transmission on the basis of a shift operation of the operation member. The control means sets the range to a neutral range when the operation member is shifted from the home position in the predetermined direction. The control means switches the range from the neutral range to a travel range when the operation member is shifted from the home position in the predetermined direction again after the shift operation.Type: ApplicationFiled: August 12, 2015Publication date: June 28, 2018Applicant: MAZDA MOTOR CORPORATIONInventors: Yoh YAMAZAKI, Masayuki TOKUMO
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Publication number: 20170240044Abstract: In a pedal structure of an automotive vehicle which includes a brake pedal and an accelerator pedal which are provided at a vehicle body side by side in a vehicle width direction, the accelerator pedal comprises an accelerator pedal body to receive a pressing operation by a right foot, a hinge portion pivotally supporting a lower end of the accelerator pedal body, and a pedal base supporting the accelerator pedal body via the hinge portion, and a heel support portion to support the right foot's heel is provided at the pedal base. The heel support portion is positioned on a left side of and adjacently to the hinge portion and spaced apart forward from the hinge portion by a specified distance.Type: ApplicationFiled: February 10, 2017Publication date: August 24, 2017Applicant: MAZDA MOTOR CORPORATIONInventors: Koji TABATA, Yoh YAMAZAKI, Masayuki TOKUMO
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Patent number: 9388898Abstract: In a shift device of the present invention, a shift range is switched to a drive range or a reverse range when a switch portion is operated additionally to moving of an operational member. Switching to a drive range is executed when the switch portion is operated further in a state in which the mount of move of the operational member tilted in a first direction from a home position exceeds a first threshold, and switching to a reverse range is executed when the switch portion is operated further in a state in which the mount of move of the operational member tilted in a second direction from the home position exceeds a second threshold which is greater than the first threshold. Accordingly, quick and easy selection of a traveling range can be conducted, ensuring the safety.Type: GrantFiled: August 15, 2014Date of Patent: July 12, 2016Assignee: Mazda Motor CorporationInventor: Masayuki Tokumo
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Patent number: 9334952Abstract: There are provided an operational member and a body portion supporting the operational member rotatably from a home position and movably in a vehicle longitudinal direction from its rotated position. A shift range is changed to a drive range or a reverse range when the operational member is moved in the vehicle longitudinal direction from the rotated position after the operational member is rotated in a specified direction from the home position. A shift mode is changed to a first mode or a second mode, which have different gear ratios from each other, when the operational member is moved in the vehicle longitudinal direction from the rotated position after the operational member is rotated in an opposite direction to the specified direction from the home position.Type: GrantFiled: February 23, 2015Date of Patent: May 10, 2016Assignee: MAZDA MOTOR CORPORATIONInventors: Masayuki Tokumo, Yoh Yamazaki
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Patent number: 9254745Abstract: There are provided an operational member and a body portion supporting the operational member rotatably, clockwise or counterclockwise, from a home position and movably in a vehicle longitudinal direction from its rotated position. The body portion is configured to allow the rotated or moved operational member to return to the home position automatically. A shift range is changed to a neutral range when the operational member is rotated from the home position, and the shift range is changed to a traveling range (a drive range or a reverse range) when the operational member is moved in the vehicle longitudinal direction from the rotated position after the operational member is rotated from the home position. Herein, changing of the shift range to the drive range or the reverse range depends on the direction of the rotation of the dial from the home position.Type: GrantFiled: February 20, 2015Date of Patent: February 9, 2016Assignee: Mazda Motor CorporationInventors: Masayuki Tokumo, Yoh Yamazaki
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Publication number: 20150266376Abstract: There are provided an operational member and a body portion supporting the operational member rotatably, clockwise or counterclockwise, from a home position and movably in a vehicle longitudinal direction from its rotated position. The body portion is configured to allow the rotated or moved operational member to return to the home position automatically. A shift range is changed to a neutral range when the operational member is rotated from the home position, and the shift range is changed to a traveling range (a drive range or a reverse range) when the operational member is moved in the vehicle longitudinal direction from the rotated position after the operational member is rotated from the home position. Herein, changing of the shift range to the drive range or the reverse range depends on the direction of the rotation of the dial from the home position.Type: ApplicationFiled: February 20, 2015Publication date: September 24, 2015Applicant: MAZDA MOTOR CORPORATIONInventors: Masayuki TOKUMO, Yoh YAMAZAKI
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Publication number: 20150267807Abstract: There are provided an operational member and a body portion supporting the operational member rotatably from a home position and movably in a vehicle longitudinal direction from its rotated position. A shift range is changed to a drive range or a reverse range when the operational member is moved in the vehicle longitudinal direction from the rotated position after the operational member is rotated in a specified direction from the home position. A shift mode is changed to a first mode or a second mode, which have different gear ratios from each other, when the operational member is moved in the vehicle longitudinal direction from the rotated position after the operational member is rotated in an opposite direction to the specified direction from the home position.Type: ApplicationFiled: February 23, 2015Publication date: September 24, 2015Applicant: MAZDA MOTOR CORPORATIONInventors: Masayuki TOKUMO, Yoh YAMAZAKI
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Publication number: 20150068343Abstract: In a shift device of the present invention, a shift range is switched to a drive range or a reverse range when a switch portion is operated additionally to moving of an operational member. Switching to a drive range is executed when the switch portion is operated further in a state in which the mount of move of the operational member tilted in a first direction from a home position exceeds a first threshold, and switching to a reverse range is executed when the switch portion is operated further in a state in which the mount of move of the operational member tilted in a second direction from the home position exceeds a second threshold which is greater than the first threshold. Accordingly, quick and easy selection of a traveling range can be conducted, ensuring the safety.Type: ApplicationFiled: August 15, 2014Publication date: March 12, 2015Applicant: MAZDA MOTOR CORPORATIONInventor: Masayuki TOKUMO
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Patent number: 8479866Abstract: An operational pedal support structure of an automotive vehicle comprises a fixed pedal support member on the side of a dash panel, a swing pedal support member, a pedal body supported at the swing pedal support member via a first pivotal axis, a holding portion to allow a downward move of the first pivotal axis only in case the rotational lever rotates, and a pressing portion provided at the rotational lever so as to press down the swing pedal support member. The pressing portion is positioned in front of the second pivotal axis. Accordingly, the operational pedal support structure of an automotive vehicle equipped with a means mechanism for compulsively moving down the pedal at the vehicle frontal collision, which can be made compact and simple with a high reliability, can be provided.Type: GrantFiled: July 19, 2010Date of Patent: July 9, 2013Assignee: Mazda Motor CorporationInventors: Masayuki Tokumo, Yoh Yamazaki
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Patent number: 8276478Abstract: A pedal bracket (3) affixed to a dash panel (1) pivotably supports a pedal unit (2) via a first pivot shaft (13) and a pivotable lever (5) via a second pivot shaft (17). A shaft retainer (51) prevents a downward displacement of the first pivot shaft (17) under normal conditions, whereas the pivotable lever (5) goes into contact with a side member (33) of a vehicle body and pivots on the second pivot shaft (17) in a specific direction in the event of a vehicle collision, thereby thrusting and displacing the first pivot shaft (13) downward and disengaging the pedal unit (2) from the pedal bracket (3). At this time, the shaft retainer (51) draws back from underneath the first pivot shaft (13), for instance, as a result of pivoting of the pivotable lever (5) and goes into a nonrestrictive state in which the shaft retainer (51) allows a displacement of the first pivot shaft (13).Type: GrantFiled: April 5, 2007Date of Patent: October 2, 2012Assignee: Mazda Motor CorporationInventors: Masayuki Tokumo, Toshihiro Matsuoka, Keisuke Miyoshi
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Publication number: 20110030500Abstract: An operational pedal support structure of an automotive vehicle comprises a fixed pedal support member on the side of a dash panel, a swing pedal support member, a pedal body supported at the swing pedal support member via a first pivotal axis, a downward-move restricting means to allow a downward move of the first pivotal axis only in case the rotational lever rotates, and a pressing portion provided at the rotational lever so as to press down the swing pedal support member. The pressing portion is positioned in front of the second pivotal axis. Accordingly, the operational pedal support structure of an automotive vehicle equipped with a means for compulsively moving down the pedal at the vehicle frontal collision, which can be made compact and simple with a high reliability, can be provided.Type: ApplicationFiled: July 19, 2010Publication date: February 10, 2011Applicant: MAZDA MOTOR CORPORATIONInventors: Masayuki TOKUMO, Yoh YAMAZAKI
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Patent number: 7665565Abstract: Disclosed is a support structure for a vehicle control pedal, which comprises a pedal bracket (3) supporting the control pedal (4) through a first support shaft (S1) inserted through a support hole (303), a swingable lever (7) adapted to, during a vehicle collision, come into interference with a vehicle body member (6) so as to be swingingly moved about a second support shaft (S2) while pushing the first support shaft (S1) downwardly to allow the first support shaft (S1) to drop out of the support hole (303), and a drop-out restriction member (8) engaged by a pin member (20) and coupled to the swingable lever (7) in a relatively unswingable manner, so as to restrict the drop-out of the first support shaft (S1).Type: GrantFiled: July 3, 2007Date of Patent: February 23, 2010Assignees: Auto Technica Corporation, Mazda Motor CorporationInventors: Masayuki Tokumo, Tetsuo Hiura, Hirofumi Ishida
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Publication number: 20080006119Abstract: Disclosed is a support structure for a vehicle control pedal, which comprises a pedal bracket (3) supporting the control pedal (4) through a first support shaft (S1) inserted through a support hole (303), a swingable lever (7) adapted to, during a vehicle collision, come into interference with a vehicle body member (6) so as to be swingingly moved about a second support shaft (S2) while pushing the first support shaft (S1) downwardly to allow the first support shaft (S1) to drop out of the support hole (303), and a drop-out restriction member (8) engaged by a pin member (20) and coupled to the swingable lever (7) in a relatively unswingable manner, so as to restrict the drop-out of the first support shaft (S1).Type: ApplicationFiled: July 3, 2007Publication date: January 10, 2008Inventors: Masayuki Tokumo, Tetsuo Hiura, Hirofumi Ishida
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Publication number: 20070234841Abstract: A pedal bracket (3) affixed to a dash panel (1) pivotably supports a pedal unit (2) via a first pivot shaft (13) and a pivotable lever (5) via a second pivot shaft (17). A shaft retainer (51) prevents a downward displacement of the first pivot shaft (17) under normal conditions, whereas the pivotable lever (5) goes into contact with a side member (33) of a vehicle body and pivots on the second pivot shaft (17) in a specific direction in the event of a vehicle collision, thereby thrusting and displacing the first pivot shaft (13) downward and disengaging the pedal unit (2) from the pedal bracket (3). At this time, the shaft retainer (51) draws back from underneath the first pivot shaft (13), for instance, as a result of pivoting of the pivotable lever (5) and goes into a nonrestrictive state in which the shaft retainer (51) allows a displacement of the first pivot shaft (13).Type: ApplicationFiled: April 5, 2007Publication date: October 11, 2007Inventors: Masayuki Tokumo, Toshihiro Matsuoka, Keisuke Miyoshi
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Publication number: 20070137398Abstract: Disclosed is a control pedal support structure, which comprises a pedal bracket 3 fixed to a dash panel to extend in a rearward direction of a vehicle body, and a pedal body 2 swingably supported relative to the pedal bracket 3 through a pedal pivot shaft (first pivot shaft) 13 mounted to the pedal bracket 3 to extend in a lateral direction of the vehicle body. In the support structure, the pedal bracket 3 includes a mount hole zone 14 for mounting thereon the pedal pivot shaft 13, and a support zone 20 located below the mount hole zone 13 and adapted to support the pedal pivot shaft 13 from therebelow. The support structure includes dropping means adapted, during a vehicle collision, to deform the support zone 20 so as to allow the pedal pivot shaft 13 to be dropped below the mount hole zone 14.Type: ApplicationFiled: November 6, 2006Publication date: June 21, 2007Applicants: MAZDA MOTOR CORPORATION, AUTO TECHNICA CORPORATIONInventors: Masayuki Tokumo, Tetsuo Hiura, Hirofumi Ishida