-
公开(公告)号：US20210078063A1
公开(公告)日：2021-03-18
申请号：US17041307
申请日：2019-02-14
Applicant: MAZDA MOTOR CORPORATION
Inventor： Naoyuki IRIE , Ichirou INO , Yoshihide HIRAO , Chie OKAWA
Abstract: A hot press processing apparatus 1 includes: a heating step of heating a workpiece W; a pressing step of press-molding, by an upper die 11 and a lower die 12, the workpiece W heated in the heating step after loading the workpiece W between the upper die 11 and the lower die 12; and a cooling step of bringing the coolant into contact with a front surface of the workpiece W that is molded and placed in a pressed state by the pressing step, to thereby cool the workpiece W and place the workpiece W in a quenched state. In the hot press processing apparatus 1, the workpiece W molded and placed in the pressed state by the pressing step forms gaps c2 with respect to both of the upper die 11 and the lower die 12 so as to allow deformation at time of the cooling step except for an accuracy-guaranteed section Wr in the workpiece W.
-
Patent Agency Ranking
公开(公告)号：US20200238362A1
公开(公告)日：2020-07-30
申请号：US16741422
申请日：2020-01-13
Applicant: MAZDA MOTOR CORPORATION
Inventor： Yuri TAKAHASHI , Takeshi MATSUDA , Kenji NAKAMURA , Chie OKAWA , Ichirou INO , Naoyuki IRIE
Abstract: A lower mold includes: refrigerant ejection ports in its press-molding surface; and three or more independent refrigerant guide grooves extending in the press-molding surface from the refrigerant ejection ports to guide the refrigerant ejected from the refrigerant ejection port to an outer portion of the press-molding surface with the refrigerant being in contact with a workpiece. Each of the refrigerant guide grooves neither branches halfway nor merges with the others of the refrigerant guide grooves to extend from the refrigerant ejection ports to the outer portion of the press-molding surface.
-
公开(公告)号：US20210008610A1
公开(公告)日：2021-01-14
申请号：US17041237
申请日：2019-02-14
Applicant: MAZDA MOTOR CORPORATION
Inventor： Naoyuki IRIE , Ichirou INO , Yoshihide HIRAO , Chie OKAWA
Abstract: A hot press processing device 1 includes steps of: a heating step of heating a workpiece W; a press step of press-molding the workpiece W heated in the heating step; a cooling step of cooling a part of the workpiece W press-molded in the press step and causing it to undergo martensite transformation to form a hard zone Zh in the workpiece W, and cooling another part of the workpiece W and causing it to undergo ferrite/bainite transformation to form a soft zone Zs in the workpiece W. In the cooling step, the hot press processing device 1 cools a predetermined portion Zb in the soft zone Zs after increasing rigidity and hardness of the predetermined portion Zb.
-
公开(公告)号：US20200238363A1
公开(公告)日：2020-07-30
申请号：US16741497
申请日：2020-01-13
Applicant: MAZDA MOTOR CORPORATION
Inventor： Yuri TAKAHASHI , Takeshi MATSUDA , Kenji NAKAMURA , Chie OKAWA , Ichirou INO , Naoyuki IRIE
Abstract: A lower mold includes: refrigerant ejection ports in its press-molding surface; refrigerant guide grooves in the press-molding surface to guide a refrigerant ejected from the refrigerant ejection ports to an outer portion of the press-molding surface with the refrigerant being in contact with a workpiece; a single connecting groove connected to the refrigerant guide grooves and formed at the outer portion of the press-molding surface into which the refrigerant flows through the refrigerant guide grooves; and discharge ports in the connecting groove. Each of the refrigerant discharge ports is formed at a part of the connecting groove apart from the connecting points between the connecting groove and the refrigerant guide grooves.
-
公开(公告)号：US20200206987A1
公开(公告)日：2020-07-02
申请号：US16697449
申请日：2019-11-27
Applicant: MAZDA MOTOR CORPORATION
Inventor： Takeshi MATSUDA , Masaru TOBO , Yuri TAKAHASHI , Kenji NAKAMURA , Yoshihide HIRAO , Chie OKAWA , Seiji INOUE , Naoyuki IRIE
Abstract: A hot-pressing device includes at least one mold having a molding surface; and at least one mold holder, wherein the hot-pressing device further comprises a refrigerant supply groove provided so as to horizontally extend to at least a mold side or a mold holder side in a contact surface between the at least one mold and the at least one mold holder; and at least one refrigerant supply path opened in corresponding at least one opening disposed on the molding surface, the refrigerant supply path communicating with the refrigerant supply groove and being provided in the inside of the at least one mold so as to extend vertically.
-
公开(公告)号：US20150239400A1
公开(公告)日：2015-08-27
申请号：US14626312
申请日：2015-02-19
Applicant: MAZDA MOTOR CORPORATION
Inventor： Kazuhiro TANAKA , Tsuneki SHIMANAKA , Chie OKAWA
Abstract: A trunk panel comprises a bottom portion, a first standing wall portion, and a second standing wall portion. A protrusion portion is provided at a rear end portion of the bottom portion and the second standing wall portion to protrude upward. This protrusion portion is spaced apart from the first standing wall portion such that a passage is formed between the protrusion portion and the first standing wall portion, wherein the passage is configured to allow water to flow down from a portion of the bottom portion which is located forward of the protrusion portion toward a rear end portion of the bottom portion and the second standing wall portion. Thereby, any bad influences of rainwater or the like, which may be brought to various kinds of members around or arranged below a rear lamp, can be properly restrained.
Abstract translation: 主干板包括底部，第一立壁部分和第二直立壁部分。 突起部设置在底部的后端部和第二立壁部上方突出。 该突出部分与第一直立壁部分间隔开，使得在突出部分和第一直立壁部分之间形成通道，其中通道构造成允许水从位于底部的底部的一部分向下流动 突出部的前方朝向底部的后端部和第二立壁部。 因此，可以适当地抑制可能对后灯的周围或布置在各种各样的构件上的雨水等的任何不良影响。
-
-
-
-
-
Search Results
6
records
(took 0.012 seconds)
