公开(公告)号：JPH05202974A

公开(公告)日：1993-08-10

申请号：JP3570692

申请日：1992-01-27

Applicant: KAYABA INDUSTRY CO LTD ,  TOYOTA MOTOR CORP

Inventor： MURAKAMI TOMOHARU ,  TANAKA TSUNEO ,  SADAKATA OSAMU ,  USHIJIMA FUMIHIRO ,  SUGIYAMA YUKIO ,  MATSUMOTO YASUSHI

IPC: F16F9/00 ,  B60G17/00 ,  F16F9/52

Abstract: PURPOSE:To provide a heating structure of gas spring to suit mostly to increase in versatility of gas spring by enabling smooth extension operation even in a condition in which a temperature of gas is lowered. CONSTITUTION:The top end of a piston rod 2 is inserted slidably into a cylinder 1, and the piston rod 2 is energized to be forced out from the cylinder 1 by a gas pressure of a proper gas body sealed in the cylinder 1. The gas is heated by a heater 10 located on the outer surface of the cylinder 1 or inside it.

公开(公告)号：JPH04370428A

公开(公告)日：1992-12-22

申请号：JP17325991

申请日：1991-06-18

Applicant: KAYABA INDUSTRY CO LTD ,  TOYOTA MOTOR CORP

Inventor： MURAKAMI TOMOHARU ,  MATSUMOTO YASUSHI ,  USHIJIMA FUMIHIRO ,  SUGIYAMA YUKIO ,  SADAKATA OSAMU

IPC: F16F9/00 ,  F16F9/02 ,  F16F9/43

Abstract: PURPOSE:To enhance productivity by press-fitting a base end of a pipe, which is connected to a traction member and inserted into a hollow piston rod, into a press-fit hole formed in an axial center portion of a bottom member continuous to a bottom end of a cylinder, into which the piston rod is inserted, via a seal member so as to obtain a gas sealing plug. CONSTITUTION:A diameter of a base end 3b of a pipe 3 is enlarged. The base end 3b is press-fitted into a press-fit hole 5a formed in an axial center portion of a bottom member 5 via a seal member 8. The seal member 8 is inserted into an annular groove 3c formed in the outer periphery in the center of the base end 3b. The pipe 3 is inserted into a hollow portion of a hollow piston rod 2 inserted into a cylinder 1, and is connected to a traction means disposed outside via a traction member 4 so as to insert the hollow piston rod 2 into the cylinder 1. With this constitution, gas is sealed into the cylinder 1 through a clearance formed between the base end 3b and the press-fit hole 5a before the base end 3b of the pipe 3 is press-fitted into the press-fit hole 5a.

公开(公告)号：JPH01210640A

公开(公告)日：1989-08-24

申请号：JP3693588

申请日：1988-02-19

Applicant: TOYOTA MOTOR CORP

Inventor： SUZUKI TOSHITAKE ,  USHIJIMA FUMIHIRO ,  HIGASHIYAMA YASUHIKO

IPC: F16H1/28 ,  F16H57/08

Abstract: PURPOSE:To prevent a specified pinion and teeth from uneven wear and improve durability by fitting the outer peripheral surface of a supporter in the inner peripheral surface of a sun gear through a spline and fitting the supporter onto the outer peripheral surface of a shaft-like member. CONSTITUTION:A sun gear 11 is mounted on a connecting shaft 6 by a supporter 13 provided on the inner peripheral surface of the sun gear. The supporter 13 having a circular section has an outer peripheral spline 14 fitting a spline 12 formed on the inner peripheral surface of sun gear 11 and an inner peripheral spline 16 fitting on the outer periphery of the connecting shaft 6. Thus, even if the diameter of the sun gear 11 is enlarged, the supporter 13 fixes the sun gear 11 to the connecting shaft 6, so that the thickness of the sun gear 11 can be thinned. Also, even if the number of pinions 4 is increased, all pinions 4 can mesh normally through the elastic deformation of the sun gear 11.

公开(公告)号：JPH01105042A

公开(公告)日：1989-04-21

申请号：JP12625688

申请日：1988-05-24

Applicant: TOYOTA MOTOR CORP

Inventor： HIGASHIYAMA YASUHIKO ,  USHIJIMA FUMIHIRO ,  ASADA TOSHIYUKI

IPC: F16H3/66

Abstract: PURPOSE:To obtain a speed change shift of forward five or sixspeed and reverse one-speed by combining a single pinion type planetary gear mechanism with a double-pinion type planetary gear mechanism respectively through three clutches and brakes. CONSTITUTION:A single pinion type planetary gear mechanism 10 and a double- pinion type planetary gear mechanism 20 connect sun gears 11 and 21 by a connecting member 26 and a ring gear 13 to a carrier 25 by a connecting member 27. And by selectively engaging clutches C1-C3 and brakes B1-B3, a speed change shift of forward 5-speed and reverse 1-speed is formed between an input shaft IS and an output shaft OS. That is, the speed change shift obtains the first speed by turning on the clutch C1 and the brake B1, second speed by C2, B2, third speed by C2, B3, fourth speed by C2, C3 and the fifth speed by C3, B3 while the reverse shift by C1, B2. Thus obtaining the forward 5-speed or 6-speed and the reverse 1-speed with a small amount of change of speed change ratio between each speed change shift, the improvement of ride-in comfortableness can be promoted.

公开(公告)号：JPS63275838A

公开(公告)日：1988-11-14

申请号：JP11134887

申请日：1987-05-07

Applicant: TOYOTA MOTOR CORP

Inventor： ASADA TOSHIYUKI ,  NUMAZAWA AKIO ,  USHIJIMA FUMIHIRO

IPC: F16H3/62

Abstract: PURPOSE:To shorten the length of the transmission in the title in its axle direc tion by combining a single planetary gear train with a Ravigneaux type com pound planetary gear train and connecting respective these gears and carrier to a case, input shaft and output shaft through a clutch and brake. CONSTITUTION:A single planetary gear train 30 is composed of an sun gear 31 a planetary pinion 32, a ring gear 33 and a carrier 34. A Ravigneaux type compound planetary gear train 40 15 composed of the first, second sun gear 41, 42, short and long pinion 43, 44, a Ravigneaux ring gear and a carrier 45, 46. Here, the first and second sun gear, the Ravigneaux carrier, and the sun gear 41, 42, 46, 31 are always connected to an input shaft 10 through a clutch C1-C4, and the Ravigneaux ring gear 45 to an output shaft 20 through the carrier 34. Therefore, its assembly can be made easy and its length in the direction can be shortened, and a desired speed change ratio and a good balance among respective speed change rations can be obtained.

公开(公告)号：JPS63243551A

公开(公告)日：1988-10-11

申请号：JP7730887

申请日：1987-03-30

Applicant: TOYOTA MOTOR CORP

Inventor： USHIJIMA FUMIHIRO ,  NUMAZAWA AKIO ,  ASADA TOSHIYUKI

IPC: F16H3/62 ,  F16H3/66

Abstract: PURPOSE:To check rotation of a sun gear of a double pinion planetary gear mechanism by one-way clutch and to enable speed change for 5-stage forward by using a single pinion planetary gear mechanism and a double pinion planetary gear mechanism for transmission for an automobile. CONSTITUTION:Turning force is transmitted to a counter ring gear 43 for transmitting driving force to an output shaft 45 from a planetary pinion 17 of the first planetary gear mechanism 13 and the outer periphery side planetary pinion 22 of the second planetary gear mechanism 14. When a carrier 25 of the gear mechanism 13 is fixed and power is input from a sun gear 15 to operate the gear mechanism 13, it becomes backward stage. In case of inputting power from the sun gear 15, if a carrier 25 is rotated to operate the gear mechanism 14, it becomes the first speed forward. On the contrary, if power is input from a sun gear 19 and a carrier 4 is fixed, it becomes the second speed forward. In this case, if the sun gear 15 is fixed, it becomes the third speed forward. If power is input from the sun gear 19 and the carrier 24, it becomes the fourth speed forward, and if power is input from the carriers 24, 25, it becomes the fifth speed forward.

公开(公告)号：JPS6383436A

公开(公告)日：1988-04-14

申请号：JP22564486

申请日：1986-09-24

Applicant: TOYOTA MOTOR CORP

Inventor： USHIJIMA FUMIHIRO

IPC: F16H3/08

Abstract: PURPOSE:To permit a shock caused by a speed change and engine racing due to timing control to be eliminated, by effecting a speed change by bringing a first or second auxiliary clutch into a semi-engagement condition while keeping a main clutch in an engaging condition. CONSTITUTION:When a speed change mode is selected in traveling, a CPU 142 causes a main clutch 12 to be engaged at all times and an auxiliary clutch 58 which is not engaged is brought into a semi-engagement condition in response to an up-shift command so that output torque from a transmission 14 reduces to increase a load on an engine. As a result, a rotational speed Ne reduces and a sleeve 94 moves to a neutral position at a reduction start point where a rate of change of the rotational speed is smaller than a predetermined value -alpha. Then, when the speed Ne reduces to become a rotational speed wherein a second speed can be obtained at a present automobile speed, torque transmitted at a first gear position reduces and the sleeve 94 moves to a neutral position. next, when the speed Ne reduces to a target speed N1, the sleeve 94 is positioned at the side of a gear 40 and rotation of an intermediate shaft 31 is synchronized with that of a gear 40 by a synchronizing device 88 to cause the sleeve 94 to be engaged with the gear 40, whereby a gear position of the second speed is established.

公开(公告)号：JPH05202975A

公开(公告)日：1993-08-10

申请号：JP3570592

申请日：1992-01-27

Applicant: KAYABA INDUSTRY CO LTD ,  TOYOTA MOTOR CORP

Inventor： MURAKAMI TOMOHARU ,  SADAKATA OSAMU ,  USHIJIMA FUMIHIRO ,  SUGIYAMA YUKIO ,  MATSUMOTO YASUSHI

IPC: B60J5/10 ,  F16F9/00 ,  F16F9/54

Abstract: PURPOSE:To provide a mounting structure of gas spring which requires a moderate space for installation, prevents increase of the weight and cost, does not impair the appearance, and is mostly suitable to increase versatility. CONSTITUTION:A mounting part structure of gas spring is provided with a towing member 4 which passes through an inner space 3a of a pipe body 3, of which the case end is locked to a hollow piston rod side, and the top end of which is extended to the outside after passing through the bottom center of a cylinder 1. Then the top of the towing member 4 is towed from the outside to move the hollow piston rod forcibly into the cylinder against gas pressure to enable forced compression. Also the bottom of the cylinder is connected to a body, etc., B in a ball joint structure comprising a spherical holding member 8 and a spherical sheet member 9. Either one of the spherical holding member 8 or spherical sheet member 9 is connected to the bottom part with its axis coincided with the axis at the bottom part, and the towing member 4 is inserted into through-holes 8a and 9a drilled at the axis part by the spherical holding member 8 and spherical sheet member 9.

公开(公告)号：JPH01273729A

公开(公告)日：1989-11-01

申请号：JP10299188

申请日：1988-04-26

Applicant: TOYOTA MOTOR CORP

Inventor： MURATA KIYOHITO ,  USHIJIMA FUMIHIRO

IPC: B60K17/35 ,  B60K17/346

Abstract: PURPOSE:To enable a differential limiting device to be placed in a free condition, in the time of automobile inspection, by a shift mechanism enabling the differential limiting device to change its differential limiting characteristic from the outside, in the normal time, by enabling the differential limiting device to relatively rotate to a case by a control force transmitting member. CONSTITUTION:A rod 35, variably changing the characteristic of a differential limiting device F, can be press controlled from the outside through the second rod 38 built in a case E and a control force transmitting member (ring 37) provided between the differential limiting device F and the case E. While the differential limiting device F can be relatively rotated to the case E by the control force transmitting member (ring 37). A select lever 12 is operated, by separating the case E from a rotary shaft 21 enabling it to freely rotate for the case E, the differential limiting device F can be placed in a free condition, enabling the preparation to be attained for automobile inspection as an inspection mode while a front two-wheel drive condition to be obtained as a chassis dynamometer mode.

公开(公告)号：JPH01238721A

公开(公告)日：1989-09-22

申请号：JP6408288

申请日：1988-03-17

Applicant: TOYOTA MOTOR CORP

Inventor： MURATA KIYOHITO ,  USHIJIMA FUMIHIRO

IPC: F16D35/00

Abstract: PURPOSE:To restrain enlargement of a coupling by penetrating one side wall of a fluid chamber with liquid seal and slidably in an axial direction, pressing it by remote control to change a gap between each plate, and also making a side wall slidable in the axial direction. CONSTITUTION:An outer member 11 is constructed by a central outer shell 11a, right and left the second and the third outer shell 11b, 11c integrally, an outer annular plate 11d is fitted to the outer shell with liquid seal and slidably at the inter mediate portion of the inside thereof. A piston member 15 forming a press means is interposed between the third outer shell 11c and the annular plate shell 11d with liquid seal to the inner circumferential side of the third outer shell 11c and slidably in the axial direction. Thus, the volume of a fluid chamber is increased or decreased by the slide of the annular plate 11d so that the small shifting quantity of the annular plate 11d is enough.