JPS61285128A - Device for preventing car from backing - Google Patents

Abstract

PURPOSE:To effectively prevent a car from inadvertently backing by installing a one-way clutch which locks an input shaft when said shaft is to reverse, between the inside of the hole of a bearing retainer provided on one side of a bearing for rotatably supporting an input shaft, and a boss part for a transmission gear. CONSTITUTION:One end of each of output and input shafts 11, 12 is rotatably supported by each of bearings 40, 41 on the side end of a transmission case 2, and gears 21, 22 for the fifth gear and a synchromesh device 25 are provided on the extended parts of the shafts 11, 12 within a side cover 3. In this transmission 10, the bearings 40, 41 are prevented from coming off by means of a bearing retainer 45 which is fastened to the side end of the case 2 by means of a bolt 46. Plural wedge-shaped grooves 50 are formed around the hole 43 of the retainer 45, and a roller 51 which is energized by a spring 52 is housed in each groove 50, forming a one-way clutch 55. And, when a car made a temporary stop on an upward slope, the reversal of a gear boss part 21a is checked by the one-way clutch 55, to prevent the car from inadvertently backing.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a device for preventing a vehicle from moving backward when the vehicle temporarily stops on a slope. [Conventional technology]

In the case of a temporary stop on an uphill climb, the clutch is disengaged by depressing the clutch pedal or the gear is set to the neutral 1-neutral position, and braking is performed by depressing the 10-watt brake or operating the parking brake. Therefore, when starting the vehicle in such a situation, it is necessary to increase engine output by pressing the accelerator pedal while also releasing the clutch pedal and brake operation, which is extremely complicated. . Therefore, there is a prior art technique disclosed in Japanese Patent Publication No. 4B-28606, for example, to facilitate the operation when starting on a hill. Here, the vehicle is held in the stopped F state by using a hydraulic braking device that is always used when stopping. A so-called hill holder device has been proposed.

Problem 1 to be solved by the invention By the way, in the configuration 6 using a hydraulic braking system such as the above-mentioned optical technology, there is no means for preventing the return of hydraulic pressure, Sometimes a means to release the brake is required, which complicates the construction.Also, there are problems such as timing the release of the brake nozzle at the time of starting. To prevent this, it is desirable to rigidly prevent the drive system from rotating backwards when stopped on a slope, and it is practical to configure such a means so that it can be easily incorporated into the drive system. It is preferable. The present invention was created in view of these points, and utilizes the reversal of the drive system when the vehicle backs up to effectively prevent the vehicle from rolling backwards, and has a simple configuration using off-the-shelf parts. The object of the present invention is to provide a device for preventing backward movement of a vehicle, which can be made smaller in size. [Means for Solving Problem 1] In order to achieve the above object, the present invention provides a transmission for a drive system of a vehicle, in which a bearing retainer is fastened to one side of a bearing that pivotally supports an input shaft to prevent the bearing from coming off. , in which a gear shift gear 7 is integrally connected to the input shaft and disposed adjacent to the input shaft on the opposite side of the retainer to the bearing, the input It is configured to install a one-way clutch that locks when the shaft is reversed. [Function 1-] Based on the configuration described in section 1-, this section is designed so that when the vehicle stops by disengaging the clutch with the forward or reverse gear engaged on an uphill or downhill road, the drive system is reversed and the vehicle is stopped. When you start backing up, the one-wake lever will lock and automatically hold the vehicle in a stopped state, preventing it from sliding when stopping or starting. In addition, the one-wake shift is made using the bearing retainer of the transmission and the boss part of the transmission gear. [Embodiment] Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In Fig. 1, a horizontal one-herance axle vehicle to which the present invention is applied is shown. To explain the transmission system of the type, reference numeral 1 is a clutch housing, a transmission case 2 is connected to this housing 1, and a lead cover 3 is connected to the side end of the transmission case 2. A clutch 5 is housed, and a transmission 10, a front 1 and a differential device 30 are installed inside the clutch housing 1, the transmission case 2, and the lead cover 3, forming a 1 Herance axle type.As a drive system, The crankshaft 6 of the engine is connected to the input shaft 11 of the transmission 10 via the clutch 5, and the output shaft 12 of the engine is connected to the input shaft 11 of the transmission 10 via the clutch 5.
Hedef! It is connected to i' position 3() and is configured to transmit power to the front wheels. The transmission 10 is of a constant-mesh type, with a gear 13 for first speed being connected to the output shaft 11 and 12 from the clutch side.
14, 2nd speed gear 15, 16, 3rd speed gear 17°'
1g, 14□, □Y 19.2 + 1$□54, Ka, 31. stomach! , a fifth speed gear I'721°22 is provided on both shafts 11,12 within the cover 3. Then, the output shaft 12 and the 131st shaft rotatably connected thereto.
! And between the driven gear pi 4.16 for the second gear, between the driven gear % -18, 20 for the third and fourth gear, and between the driven gear 22 for the fifth gear, there is a sink 1 unit 23.
24, 25 are provided, and the idler gear p2B is directly engaged with the drive and driven gear p26, 27 formed on the sleeve side of the input shaft 11 and the synchronizer 2:λ for the reverse gear. Thus, each synchronizer 23.24.2! The first to 56th forward gears are shifted by the synchronized meshing action of I, and the reverse gear is obtained by J: due to the meshing of the idler gear 18. The Freon 1-differential device 30 is the output shaft 12 of the transmission 10.
The drive gear p31 formed in the gear meshes with the fine gear p32, and the differential device 331)'+5 left and right front wheel axles 34.3! i stands out. Here, in the above-mentioned speed change 4910, the bearings 40 and 41 at the side ends of the engine case 2
Pivotally support one side of the
A gear puller for 5th speed 21°2 is attached to the extension of the output shaft 11.12.
Therefore, a cylindrical bearing receiver (J42) is formed at the side end of the mission case 2, and a bearing 40, 41 is installed in this bearing receiver 42. Then, as shown in FIG. -46, and tJ prevents the bearings 40 and 41 from being removed.Furthermore, the fifth speed drive gear p21 is in a state where the boss portion 21a passes through the inside of the hole 43 of the bearing retainer 411 and is in contact with the bearing 40. , input shaft 1 by knot 47
1 is concluded. On the other hand, the driven gear ψ22 is positioned differently with respect to the bearing 41 via a spacer 48. Therefore, in the above structure, a wedge-shaped groove 5 is formed around the hole 43 of the bearing retainer 45 as shown in FIG.
A plurality of 0 are formed inside the groove 50, and the gear boss portion 21
A roller 51 is housed between the roller 51 and the roller 51 with a spring 52 biased therebetween. Then, roller holding plates 1-53 are provided on both sides of the bearing retainer 45. ! i4 is installed collinearly with the bolt 46, and in this way, the one-way clutch 5 locks rotation in the direction opposite to the arrow in FIG.
Achieve 5. Next, the operation of the device configured in this way will be explained. First, during normal driving, when the clutch 1 is engaged, engine power is manually applied to the input shaft 11 of the transmission 1 () and the gears 1713, 14, etc., which are constantly engaged, and the sink 1] device 2: ;, 24 or 25 is the driven gear 14.
16゜18, 20.22 Horn axis 12
or integrally connect idler gear L-211 to gear L26.
By meshing with 27, power for normal rotation or reverse rotation with a changed speed is output to the output shaft 12. At this time, the input shaft 11
By always rotating in the direction of the arrow in FIG. 2, the roller 51 of the one-way clutch 55 follows and becomes free. Therefore, if the clutch 5 is disengaged and the forward gear is kept engaged when making a temporary stop on the way up before moving forward, the output shafts 11 and 12 are maintained in a connected state. As a result, the vehicle moves backwards due to its own weight, and the input shaft 1
When an attempt is made to reverse the wheels after wheel 1, the roller 51 bites into the groove 50 and locks due to the reverse rotation of the gear boss portion 21a in the one-way clutch 5. thus,
The drive system after the input shaft 11 is prevented from reversing, and is automatically held in a stopped state to prevent it from moving backwards. Next, when the clutch 5 is gradually engaged when starting on such a slope, engine power is manually applied to the input shaft 11. Then, as the engine operating saw overcomes the load and starts to rotate the input shaft 11 in the forward direction, the locking action of the one-way clutch 55 is automatically released and the vehicle starts running. The one-way clutch 55 operates in the same manner as described above when the shift is made to .The one-way clutch 55 operates in the same manner as described above.Although one embodiment of the present invention has been described above, it is equally applicable to a transmission system with an electromagnetic clutch. [Effect] As described above, according to the present invention, the one-way clutch is automatically locked or released by utilizing the difference in the rotation direction applied to the drive system of the vehicle. The structure is much simpler than that, allowing for timely unlocking and driving when starting.Since the one-way clutch is assembled between the ready-made pairing tape and the gear boss, the number of parts is reduced. The mounting space is now military-grade, and there is no need to separately fix the stationary side.Since the rotating side is a gear boss with a large radius, the one-way clutch capacity is increased and the locking ability is also increased.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the rearward prevention @ position of the present invention, and FIG. 2 is a side view of the main part of the periphery. 10... Transmission 11... Input shaft 21... Fifth continuous drive gear 21a... Boss portion 40... Bearing 42... Bearing receiver 45... Bearing retainer 43... Hole 50 ...)b 51...Roller 52...Spring jiJ 54...To lower holding play 1 55...One-way cuntch

Claims (1)

[Scope of Claims] In a transmission of a vehicle drive system, a bearing retainer is fastened to one side of a bearing that pivotally supports an input shaft to prevent the retainer from coming off, and a transmission gear is connected to the input shaft on the opposite side of the bearing of the retainer. A one-way clutch is installed inside the hole of the bearing retainer and between the boss part of the transmission gear to lock the input shaft when the input shaft is reversed. Prevention device.