Abstract: A method of assembling or disassembling a housing shelf configured at least from shelf plates and frames, including a step in which a chuck holds a frame; a step of determining, based on an image captured by an imager that captures an image of the frame held by the chuck and positioned at an imaged position, a position of a target portion of the frame on the image; and a step of determining, based on the determined position on the image, at least one correction value for causing a change in a release position for the frame when the frame is released from the chuck onto the shelf plate. The target portion may be an inner wall surface of the frame. An illumination unit may be arranged between the imager and the imaged position of the frame.

Abstract: A method of assembling or disassembling a housing shelf configured at least from shelf plates and frames, including a step in which a chuck holds a frame; a step of determining, based on an image captured by an imager that captures an image of the frame held by the chuck and positioned at an imaged position, a position of a target portion of the frame on the image; and a step of determining, based on the determined position on the image, at least one correction value for causing a change in a release position for the frame when the frame is released from the chuck onto the shelf plate. The target portion may be an inner wall surface of the frame. An illumination unit may be arranged between the imager and the imaged position of the frame.

Abstract: A lockup clutch mechanism of a hydraulic transmission device includes a lockup piston that is capable of moving toward a front cover to press first and second friction plates, and a flange member that together with the lockup piston defines an engagement-side oil chamber. The front cover and the lockup piston define a first lubricant passage that supplies hydraulic oil to the first and second friction plates. A second lubricant passage communicating with the first lubricant passage is formed in a centerpiece of the front cover. A first shaft oil passage communicating with the engagement-side oil chamber and a second shaft oil passage communicating with the second lubricant passage are formed in an input shaft.

Abstract: In a hydraulic transmission apparatus, a lockup piston of a lockup clutch mechanism is placed on the opposite side of first and second friction plates from a sidewall portion of a front cover. A damper device is placed on the opposite side of the lockup piston from the first and second friction plates. An outer peripheral portion of the lockup piston is located closer to the outer periphery than an outer peripheral portion of a flange member. A part of the lockup piston is placed in a region located between first and second springs and a third spring of the damper device in a radial direction and in the range of an axial width of the third spring located closer to the lockup piston.

Abstract: A lockup clutch mechanism of a hydraulic transmission device includes a lockup piston that is capable of moving toward a front cover to press first and second friction plates, and a flange member that together with the lockup piston defines an engagement-side oil chamber. The front cover and the lockup piston define a first lubricant passage that supplies hydraulic oil to the first and second friction plates. A second lubricant passage communicating with the first lubricant passage is formed in a centerpiece of the front cover. A first shaft oil passage communicating with the engagement-side oil chamber and a second shaft oil passage communicating with the second lubricant passage are formed in an input shaft.

Abstract: In a hydraulic transmission apparatus, a lockup piston of a lockup clutch mechanism is placed on the opposite side of first and second friction plates from a sidewall portion of a front cover. A damper device is placed on the opposite side of the lockup piston from the first and second friction plates. An outer peripheral portion of the lockup piston is located closer to the outer periphery than an outer peripheral portion of a flange member. A part of the lockup piston is placed in a region located between first and second springs and a third spring of the damper device in a radial direction and in the range of an axial width of the third spring located closer to the lockup piston.

Abstract: An automatic transmission includes a starting apparatus having a housing that rotates based on torque of a driving source, and a clutch mechanism portion positioned in the housing; an oil pump that is positioned on a side opposite to the driving source with respect to the starting apparatus in a rotational axis direction of the housing, and is driven by transmission of rotation of the housing; an oil pump housing in which the oil pump is accommodated; and a speed change mechanism that is positioned on a side opposite to the starting apparatus with respect to the oil pump housing in the rotational axis direction, and has an input shaft, which extends through the oil pump and the oil pump housing and is connected to the clutch mechanism portion.

Abstract: A starting device includes a housing; an output side member; a clutch mechanism; a working oil passage that supplies working oil to a hydraulic chamber of the clutch mechanism from an oil pressure source side; and a lubricating oil passage including a supply oil passage that supplies lubricating oil to the housing from the oil pressure source side and a return oil passage for returning the lubricating oil to the oil pressure source side from the housing, wherein the working oil passage and the lubricating oil passage are formed to overlap at least partially in an axial direction.

Abstract: An automatic transmission includes a starting apparatus having a housing that rotates based on torque of a driving source, and a clutch mechanism portion positioned in the housing; an oil pump that is positioned on a side opposite to the driving source with respect to the starting apparatus in a rotational axis direction of the housing, and is driven by transmission of rotation of the housing; an oil pump housing in which the oil pump is accommodated; and a speed change mechanism that is positioned on a side opposite to the starting apparatus with respect to the oil pump housing in the rotational axis direction, and has an input shaft, which extends through the oil pump and the oil pump housing and is connected to the clutch mechanism portion.

Abstract: A starting device includes a housing; an output side member; a clutch mechanism; a working oil passage that supplies working oil to a hydraulic chamber of the clutch mechanism from an oil pressure source side; and a lubricating oil passage including a supply oil passage that supplies lubricating oil to the housing from the oil pressure source side and a return oil passage for returning the lubricating oil to the oil pressure source side from the housing, wherein the working oil passage and the lubricating oil passage are formed to overlap at least partially in an axial direction.

Abstract: A damper device includes a drive plate; a driven plate; and a torque transmission mechanism having different types of damper springs. The torque transmission mechanism transmits torque of the drive plate to the driven plate via at least one of the damper springs, wherein the torque transmission mechanism is structured to allow a combination of damper springs acting during torque transmission to be changed at lease three times as a rotation angle of the drive plate relative to the driven plate becomes greater. Each of the damper springs can be extended and compressed circumferentially about the rotation axis and is disposed at the same radial position about the rotation axis.

Abstract: A lock-up clutch is arranged in parallel with a power transmission path between a pump impeller and a turbine runner of a fluid coupling arranged between the drive side and the load side, wherein the lock-up clutch changes the power transmission path. A stall capacity factor is determined using an engine speed at which the maximum engine torque on the drive side is generated, and the rotation on the drive side is transmitted to the load side by using the stall capacity factor. Therefore, optimal acceleration can be obtained by setting the stall capacity factor such that the stall rotational speed is in the vicinity of the rotational speed at which the maximum engine torque is generated. Thus, drivability can be improved by obtaining a control amount with which the vehicle speed responds as expected to the accelerator, there is no uncomfortable sensation, and fuel economy can be improved.

Abstract: Cooling oil is fed to a second oil space formed on the inner circumferential side of a hub member, and is also fed through a bypass oil passage to a first oil space formed on the outer circumferential side of a drum member. When the friction plates rotate, with grooves in the friction pads attached to the inner friction plates, the cooling oil flows by inertial force through oil holes in the hub member and through oil holes of the drum member, from the first oil space to the second oil space, and from the second oil space to the first oil space, respectively, through the friction plates. Accordingly, the flow of the cooling oil to the friction plates is improved without notches, etc. in the outer friction plates or in the inner friction plates, resulting in an improvement in cooling of the coupling device.