Abstract: it is an object of the present invention to provide a differential limiting apparatus increasing the capacity of the clutch to obtain the enough large differential limiting force. The differential limiting apparatus comprising a housing 2 rotated by driving force of a driving source, a differential mechanism 3 having one pair of output gears 3A, 3B to distribute said driving force to one pair of output shafts differentially, a clutch 4 disposed directly between the one pair of output gears 3A, 3B and having the inner clutch plate 4A and the outer clutch plate 4B as an annular frictional plate to restrict a differential movement of the differential mechanism 3, and an output mechanism 5 driving said clutch 4, the output mechanism 5 includes a first cam 52C moved along an axial direction, and a pushing pin 35 as a transmitting member transmitting the axial movement of said first cam 52C to the clutch 4.

Abstract: It is an object of the present invention to provide a differential case for a vehicle and a differential device for a vehicle restricting change and movement of an intermeshing of a pair of side gears and a pair of pinion gears to achieve stable differential restriction force. The differential case or the differential device for the vehicle comprises a case body 50 accommodating a pair of side gears 5R, 5L and a pinion gear 3 or 4 engaging in mesh with the side gears 5R, 5L, and a pinion gear supporter 53 accommodated in said case body 50 and having a pinion gear supporting portion 56 or 57 to install said pinion gear 3 or 4 in recess space 60, 61 of said pinion gear supporter 53 and to support slidably an outer peripheral surface of said pinion gear 3 or 4 for rotation of said pinion gear 3 or 4.

Abstract: A differential (1) for a vehicle includes a differential case (2), side gears (5L, 5R) rotatably accommodated in the differential case (2), pinion gears (3, 4) engaged with the side gears (5L, 5R), and pinion gear shaft (50) inserted through the pinion gears (3, 4) to be supported by the differential case (2), in which the differential case (2) has pinion gear supporting portions (10, 11) for rotatably supporting the pinion gears (3, 4), respectively, the pinion gear shaft (50) has pinion gear supporting surfaces (50A, 50B) for rotatably supporting the pinion gears (3, 4), respectively, and the pinion gear supporting surfaces (50A, 50B) are disposed on a side of an axis line of rotation of the differential case (2) with respect to the pinion gear supporting portions (10, 11).

Abstract: A differential gear 1 for a vehicle comprises a differential case 2 having a pair of holes 9R, 9L for drive shafts, a pair of pinion gears 3, 4 supported by pinion gear supporters 10, 11 and a pair of side gears 5R, 5L engaging with the pinion gears 3, 4. A pair of thrust washers 6R, 6L is interposed between the backs of the side gears 5R, 5L and the inner peripheries of the holes 9R, 9L without radial movement.

Abstract: It is an object of the present invention to provide a differential case for a vehicle and a differential device for a vehicle supplying sufficiently lubrication oil to a gear peripheral portion as a supported portion of a pinion gear in order to prevent a bonding of the gear peripheral portion of the pinion gear. The differential case or the differential device for the vehicle comprises a pair of pinion gear supporting portions 10, 11 supporting slidably a pair of pinion gears 3, 4, and a lubrication oil introducing portion 7, 8 provided around a peripheral portion of the pair of pinion gears 3, 4 to introduce lubrication oil into a clearance between sliding faces of the pair of pinion gears 3, 4 and pinion gear supporting faces 10a, 11a, 10b, 11b of the pair of pinion gear supporting portions 10, 11.

Abstract: Pinion gears are rotatably carried within pinion gear receiving openings formed in a differential case. The inner pinion gear holding surfaces of the receiving openings are enlarged inwardly to form extensions to hold not only portions of the pinion gears that are located outwardly and that are to be held, but also part of inner meshing portions of the pinion gears that are disposed in meshing engagement with side gears in an overlapping manner. This construction prevents a tilting of the pinion gears and improves the durability.

Abstract: A plurality of pinion gears 4A, 4B which are rotatably held within a differential case 2, a pair of left and right side gears 6L, 6R disposed in meshing engagement with the pinion gears and connected to left and right axles, respectively, and thrust washers 16L, 16R interposed between the rear surfaces of the side gears and the internal surface of the differential case are provided. The differential case is of a one-piece type, and is formed with an opening 2b in its sidewall, which is used in assembling the pinion gears and the like. The internal surface of the differential case is formed with pinion gear holders 12A, 12B. The pinion gears are inserted, followed by the insertion of the side gears. The side gears are spaced from the pinion gears by an amount corresponding to the thickness of the thrust washers, and this allows the side gears to be inserted in following relationship with the pinion gears.

Abstract: A power transmission apparatus is provided with a housing, which rotates together with an input shaft, a differential mechanism, and a main clutch. The main clutch links the input shaft and the first output shaft. The differential mechanism distributes drive force that is inputted from the input shaft via the housing into a first output shaft and a second output shaft. The differential mechanism is provided with a ring gear that is provided within the housing, a sun gear that is provided within the ring gear, and a planetary gear. The planetary gear is engaged with the ring gear and the sun gear and supported in such a manner as to be orbital and rotational. The first output shaft is linked to the ring gear. The main clutch is formed of a plurality of outer clutch plates and inner clutch plates, which are provided on the inner circumferential surface of the housing and on the outer circumferential surface of the ring gear.

Abstract: A vehicle differential gear device has: a differential case having a plurality of pinion gear insertion holes and a side gear passage hole; a plurality of shaftless type pinion gears that are rotatably supported in the plurality of pinion gear insertion holes formed in the differential case; and a pair of side gears that are rotatably supported in the differential case, engage with the plurality of shaftless type pinion gears, and has an outer diameter greater than that of the plurality of shaftless type pinion gears, the side gear passage hole allowing passage of the pair of side gears.

Abstract: A plurality of pinion gears 4A, 4B which are rotatably held within a differential case 2, and a pair of left and right side gears 6L, 6R which are in meshing engagement with the pinion gears 4A, 4B and connected to left and right axles are provided. A ring 18A is fitted around the pinion gears 4A, 4B to prevent the pinion gears 4A, 4B from being withdrawn. The ring 18A has an inner peripheral surface in which a spherical recess 18Aa centered about a point of intersection between an axis of rotation of the side gears 6L, 6R and an axis of rotation of the pinion gears 4A, 4B is formed while an end of the pinion gears 4A, 4B which is disposed toward the outer periphery is formed with a spherical projection 4Ac having a similar curvature as the recess in the ring 18A.

Abstract: A plurality of pinion gears 4A, 4B which are rotatably held within a differential case 2, a pair of left and right side gears 6L, 6R disposed in meshing engagement with the pinion gears and connected to left and right axles, respectively, and thrust washers 16L, 16R interposed between the rear surfaces of the side gears and the internal surface of the differential case are provided. The differential case is of a one-piece type, and is formed with an opening 2b in its sidewall, which is used in assembling the pinion gears and the like. The internal surface of the differential case is formed with pinion gear holders 12A, 12B. The pinion gears are inserted, followed by the insertion of the side gears. The side gears are spaced from the pinion gears by an amount corresponding to the thickness of the thrust washers, and this allows the side gears to be inserted in following relationship with the pinion gears.

Abstract: An internal gear 4 and a sun gear 5 are arranged on one end side and the other end side within a housing 1 which is driven for rotation about a rotation axis L. The internal gear 4 and the sun gear 5 are rotatably disposed about the rotation axis L. A first gear part 61 and a second gear part 62, which are different from each other in number of teeth, are formed on one end part and the other end part of a planetary gear 6, respectively. The first gear part 61 is meshed with an internal gear part 42 of the internal gear 4. The second gear part 62 is meshed with an external gear part 51 of the sun gear 5.

Abstract: An internal gear 4 and a sun gear 5 are arranged on one end side and the other end side within a housing 1 which is driven for rotation about a rotation axis L. The internal gear 4 and the sun gear 5 are rotatably disposed about the rotation axis L. A first gear part 61 and a second gear part 62, which are different from each other in number of teeth, are formed on one end part and the other end part of a planetary gear 6, respectively. The first gear part 61 is meshed with an internal gear part 42 of the internal gear 4. The second gear part 62 is meshed with an external gear part 51 of the sun gear 5.

Abstract: Five receiving holes 2e extending along the axis of a circular cylindrical portion 2b of a housing are formed in the circular cylindrical portion 2b. Those five receiving holes 2e are arranged at equal intervals in the peripheral direction of the circular cylindrical portion 2b. Each receiving hole 2e rotatably receives therein a planetary gear 5. The respective planetary gears 5 are in engagement with an inner gear 3 and a sun gear 4. The teeth of the inner gear 3, the sun gear 4 and the planetary gears 5 are helical teeth. The numbers of teeth of the inner gear 3, the sun gear 4 and the planetary gears 5 are set to 36, 24 and 6, respectively. As a result, the numbers of teeth of the inner gear 3 and the sun gear 4 located between adjacent two planetary gears 5 in the peripheral direction become 7.2 and 4.8, respectively, which are values each having a fraction below the decimal point.

Abstract: A carrier 2 is fixed to one end opening part of a circular cylindrical apparatus main body 1. A plurality of receiving holes 2d, which extend in parallel with a rotation axis L, are formed in the carrier 2 at the same interval in a peripheral direction. A planetary gear 4 is received in each receiving hole 2d such that the planetary gear 4 can rotate on its own axis. An inner gear 5 and a sun gear 9, which are arranged with their axes aligned with the rotation axis L of the apparatus main body 1, are disposed within the apparatus main body 1. The inner gear 5 is engaged with the planetary gears 4 at the outside thereof. The sun gear 9 is engaged with the planetary gears 4 at the inner side thereof. An engagement part between the inner gear 5 and the planetary gear 4 and an engagement part between the sun gear 9 and the planetary gear 4 are displaced from each other in a direction of the rotation axis L so that they are not overlapped with each other in a direction of the rotation axis L.

Abstract: A receiving portion 2e for rotatably receiving therein a planetary gear 3, is formed between a plurality of retaining protrusions 2d of a carrier. A connection portion 2f extending annularly about a rotation axis L is formed on an outer peripheral of a distal end portion of each retaining protrusion 2d. Through this connection portion 2f, the distal end portions of the respective retaining protrusions 2d are connected to each other. Owing to this arrangement, each retaining protrusion 2d is reinforced to minimize its deformation. As a result, deformation of the receiving portion 2e is greatly reduced and the planetary gear 3 receiving in the receiving portion 2e can rotate smoothly.

Abstract: A planetary gear 5 is contacted at its at least one tooth of all its teeth 51n with an end edge 23d facing an inner releasing part 23c of an inner peripheral surface of a receiving hole 23a irrespective of a rotational position of the planetary gear 5. By doing so, the planetary gear 5 is prevented from moving in the radial direction. As a result, the planetary gear 5 can be prevented from vibrating in the radial direction. Thus, vibrations of a planetary gear apparatus can be reduced, and the planetary gear and a carrier can be reduced in damage.

Abstract: A casing 23 of a second differential gear mechanism 2 is constituted by a carrier 19 and a sun gear 22 which are separately formed. Owing to this arrangement, the casing 23 is divided into two parts in a direction of its axis. The carrier 19 is movable in a direction of an axis L. By meshing engagement between a pinion gear 26 and a side gear 27A, the carrier 19, which forms a part of the casing 23, is press contacted with a housing 11 through a washer 29.

Abstract: Five receiving holes 2e extending along the axis of a circular cylindrical portion 2b of a housing are formed in the circular cylindrical portion 2b. Those five receiving holes 2e are arranged at equal intervals in the peripheral direction of the circular cylindrical portion 2b. Each receiving hole 2e rotatably receives therein a planetary gear 5. The respective planetary gears 5 are in engagement with an inner gear 3 and a sun gear 4. The teeth of the inner gear 3, the sun gear 4 and the planetary gears 5 are helical teeth. The numbers of teeth of the inner gear 3, the sun gear 4 and the planetary gears 5 are set to 36, 24 and 6, respectively. As a result, the numbers of teeth of the inner gear 3 and the sun gear 4 located between adjacent two planetary gears 5 in the peripheral direction become 7.2 and 4.8, respectively, which are values each having a fraction below the decimal point.