JPS62134331A - Ascent starting system for automobile - Google Patents

Abstract

PURPOSE:To prevent an automobile from starting at an ascent, by preventing the automobile from moving back in making the reversion of a turning wheel checkable by an inhibiting member, while making engagement of the inhibiting member to the turning wheel releasable by a releasing device, at the time of starting the automobile in ascending a hill. CONSTITUTION:A countershaft (jackshaft) 6 is connected, via a speed gear group 5, to the input shaft 4 connected to a crankshaft 2 of an engine via a clutch mechanism 3, and an output shaft 8 is connected to the countershaft 6 via a reduction gear 7. And, rotation of the output shaft 8 is transmitted to front wheels 9 via a final reduction gear 11 and a front differential 10 or the like, and also to rear wheels 17 via a bevel gear 15 and a rear differential 18 or the like, respectively. In this structure, a ratchet wheel 21 as a turning wheel is locked to the output shaft 8, while a ratchet 22 as a inhibiting member is installed in this ratchet wheel free of engagement. And, this ratchet 22 is made so as to be able to release the engagement with the ratchet wheel 21 by operation of a cable 23 as a releasing device.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to an uphill starting device for an automobile.

(Prior art) When starting a car equipped with a manual transmission on an uphill slope, the clutch is depressed and the gear shift lever is moved.
After placing the vehicle in first gear, the clutch was gradually released while depressing the accelerator, and when the clutch became half-engaged, the vehicle was started by operating the parking brake lever and releasing the parking brake.

(Problem to be solved by the invention) Therefore, in order to start a car on an uphill slope, a plurality of mutually consecutive operations are required, and the amount, speed, time, etc. of each operation must be appropriately selected. Therefore, these operations are extremely difficult for beginners as well as experts, and if they fail, the engine may stop or the vehicle may move backwards, causing an accident. Another problem is that when a long uphill slope is congested, this difficult and complicated operation must be repeated.

Also, even in cars equipped with automatic transmissions equipped with torque converters, the auxiliary transmission must be operated in order to start the car uphill, so there was a similar problem, albeit to a different degree. .

(Problems to be Solved by the Invention) The present invention aims to provide a device that can start a car on an uphill slope as well as on a flat ground, and its gist is to transmit power to the wheels. a rotating wheel that rotates together with the drive shaft; a stopping member that is fixed to the vehicle body and engages with the rotating wheel to allow rotation in one direction but prevents rotation in the opposite direction; There is provided an uphill starting device for an automobile, comprising a release means for releasing the engagement between the restraining member and the rotating wheel to allow the rotating wheel to rotate in the opposite direction.

(Function) Since the present invention has the above-mentioned configuration, when starting an automobile on an uphill slope, the rotating wheels are prevented from reversing by the restraining member, so that the automobile does not move backward.

Furthermore, the vehicle can be moved backward by releasing the engagement between the restraining member and the rotating wheel using the release means.

(Example) One embodiment of the invention is shown in FIGS. 1 and 2.

In FIG. 1, an input shaft 4 is operatively connected to a crankshaft 2 of an engine 1 via a clutch mechanism 3, and a human power shaft 4 is operatively connected to an intermediate shaft 6 via a speed gear group 5. The intermediate shaft 6 is operatively connected to an output shaft 8 via a reduction gear 7. The output shaft 8 is connected via a final reduction gear 11 to a front differential 10 that compensates for the rotation distance between left and right wheels 9.
is linked to. The final reduction gear 11 is connected to the differential case 12 of the front differential 10, and the side gear i3 of the front differential 10 is connected to the front wheels 9 via the front axle 14. In addition, the output shaft 8 has a rear drive beher gear 15,
It is connected to a rear differential 18 that compensates for the rotational difference between the rear wheels 17 via a propeller shirt [6]. 19 is rear differential 1
8 to the rear wheels 17.

A speed gear group 5 that requires a large space is interposed between the input shaft 4 and the intermediate shaft 6, but a final reduction gear 7 is interposed between the intermediate shaft 6 and the output shaft 8. Just,
Since there is a considerable amount of space around the output shaft 8, the ratchet wheel mechanism 20 is disposed using this space.

As shown in FIG. 2, this ratchet wheel mechanism 20 includes a rotary wheel or ratchet wheel 21 that is fixed to an output shaft 8 and rotates together with the output shaft 8, and a ratchet wheel 21 that is swingably supported by a transmission case. Ratchet wheel 2 above
1, a restraining member or ratchet 22 that allows the ratchet wheel 21 to rotate in the direction of the arrow, that is, in the direction of moving the vehicle forward, but prevents rotation in the opposite direction; It consists of a release means or cable 23 which releases the engagement with the wheel 21 and allows the ratchet wheel 21 to rotate in the opposite direction. 24 connects the ratchet 22 to the ratchet wheel 2
This is a spring that presses it to 1.

Therefore, the power of the engine 1 is generated by the crankshaft 2, clutch mechanism 3, input shaft 4, speed gear group 5, intermediate shaft 6, reduction gear 7, output shaft 8, final reduction gear 11, front differential lO
1 to the front wheels 9 via the front axle 14, and from the intermediate shaft 6 to the rear drive beher gear 15 and the propeller shaft 1.
6. It is transmitted to the rear wheels 17 via the rear differential 18 and the rear axle 19.

The ratchet 22 is constantly pressed by the spring 24 and engaged with the ratchet wheel 21. Therefore, the output shaft 8 can rotate in the direction of moving the car forward, that is, in the direction of the arrow, but the ratchet 22 prevents it from rotating in the opposite direction. It is blocked. In this way, even when starting the car on an uphill slope, the output shaft 8 does not reverse, so the car can be started using the same operations as when starting on a flat road, and there is no need to operate the parking brake as in the conventional case. disappears. When moving the car backwards, by pulling the cable 23 in the direction of the arrow from the driver's seat, the engagement between the ratchet 22 and the ratchet wheel 21 is released, the output shaft 8 can be reversed, and the car can move backwards. .

An example in which the ratchet wheel mechanism 20 is interposed on the output shaft 8 has been described above, but instead of this ratchet wheel mechanism, a differential band brake mechanism 30 shown in FIG. 3 can be used. The rotating wheel or brake drum 31 is fixed to the output shaft 8 and rotates in the forward direction shown by the arrow.
In the opposite direction, it is braked by a restraining member, that is, a band brake 32, so that it does not rotate. Connect the differential lever 33 to the cable 3
4, the brake drum 3I can also rotate in the opposite direction. Furthermore, a freewheel mechanism (one-way clutch, free rotation clutch) 40 as shown in FIG. 4 can be used instead of the ratchet wheel mechanism. A rotating ring, that is, an inner ring 41 is fixed to the output shaft 8, and an outer ring 4
3 is fixed to the miso-shikon case, the inner ring 41 rotates in the direction of the arrow, but not in the opposite direction. Rotation of the inner ring 41 in the opposite direction is allowed by rotating the retainer 44 that holds the restraining member, that is, the sprag 42, in the direction of the dashed arrow by a release means (not shown). Further, these ratchet wheel mechanisms and the like can be attached not only to the output shaft but also to any drive shaft that transmits power to the wheels, such as an input shaft, an intermediate shaft, a propeller shaft, a front axle, and a rear axle.

(Effects of the Invention) In the present invention, there is a rotating wheel that rotates together with a drive shaft that transmits power to the wheels, and a rotating wheel that is fixed to the vehicle body and engages with the rotating wheel to allow rotation in one direction. , a stopping member that prevents the rotating wheel from rotating in the opposite direction, and a releasing means that releases the engagement between the blocking member and the rotating wheel to allow the rotating wheel to rotate in the opposite direction, Even when starting a car on an uphill slope, the rotating wheels are prevented from reversing by the restraining member, so the car can be started using the same operation as when starting a car on level ground. When moving the automobile backwards, the engagement between the restraining member and the rotating wheel can be released using the release member, and this operation can be performed independently and slowly, which is extremely easy.

[Brief explanation of drawings]

1 and 2 show one embodiment of the present invention, FIG. 1 is a schematic diagram of a power transmission system, and FIG. 2 is a side view of essential parts of the present invention. 3 and 4 are side views showing essential parts of other embodiments of the present invention, respectively.

Claims (1)

[Claims] A rotating wheel that rotates together with the drive shaft that transmits power to the wheels, and a rotating wheel that is fixed to the vehicle body and engages with the rotating wheel to allow rotation in one direction, but prevent rotation in the opposite direction. 1. An uphill starting device for an automobile, comprising: a stopping member; and a release means for releasing the engagement between the stopping member and the rotating wheel to allow the rotating wheel to rotate in the opposite direction.