JPS61133424A - Emergency variable-speed mechanism used for mechanical automatic transmission of automobile - Google Patents

Abstract

PURPOSE:To attain a self-drive up to a maintenance shop from a location where a fault takes by applying manually a gear-change to the forward 1st speed and the reverse speed so as to attain the self-drive even when the fault takes place in each electric, pneumatic or hydraulic circuit. CONSTITUTION:On emergency, that is, the fault takes place in the electric or the pneumatic circuit, a stick is pulled/pushed surely at first, its stopper 25 is removed from stopper bases 20, 20 and fitted to screw slottings 21, 21. Then a select spring 14 is prolonged, an emergency variable speed operating shaft 12 is slided to a sleeve 11 so as to move the stopper 25 to shift slots 22, 22, and its end is pushed into the shaft end guide bore 33 of a shift and select shaft 31. Then the boss 26 of an emergency variable speed operating lover 13 is butted to an end face 32 and the shift and select shaft 31 is selected and moved to the forward 1st position or the reverse position.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application/Related Applications This invention relates to an emergency shift operation mechanism used in mechanical, automatic, and transmissions of automobiles.

BACKGROUND TECHNOLOGY In recent years, passenger cars have tended to be equipped with mechanical auto transmissions combined with mechanical auto clutches, which are automatically intermittent operated by an electro-pneumatic system or an electro-hydraulic system. Also, the gears are automatically changed.

And in case of automatic transmission and intermittent system failure,
An emergency operation electric circuit has been prepared to enable self-propulsion in emergencies.

However, although this type of emergency operating means is effective against failures in the electrical system in the automatic transmission and intermittent systems, it is not self-propelled in the event of failures in the pneumatic or hydraulic circuits of the systems.

OBJECTIVES AND PROBLEMS OF THE INVENTION An object of the present invention is to enable the transmission to move forward even if a failure occurs in the electric circuit, pneumatic circuit, or hydraulic circuit of the mechanical auto transmission that combines the mechanical auto clutch. An object of the present invention is to provide an emergency gear shift operating mechanism for use in a mechanical auto transmission of an automobile that enables self-propelled movement by manually shifting gears to first gear and reverse gear.

Summary of the invention in terms of structure related to object 11: Contents of the claimed invention In relation to the above-mentioned objects and problems, the emergency shift operation mechanism used in the mechanical auto transmission of an automobile according to the present invention comprises a shift and A shift lever disposed in a gear housing of a transmission, including a select lever, a shaft end opening an id bore on an end face, and forming a keyway on the end face.
facing the end surface of the shift and select shaft, one end of which is disposed on the axis of the shift and select shaft with an appropriate distance from the end surface;
A sleeve having a stopper receiver, a slot appropriately spaced circumferentially from the stopper receiver, and a shift groove connected to the slot at the other end, and a shaft end thereof at one end.

The sleeve is slidably and rotatably supported in the sleeve so as to be guided in the guide bore, and is engageable in the stopper receiver and movable through the slot into the shift groove. an emergency speed change operation shaft having a stopper extending from the sleeve at the other end thereof, and fixed to one end side of the emergency speed change operation shaft,
An emergency shift operation lever provided with a key that engages with a keyway of the shift and select shaft, and an emergency shift operation lever disposed between the sleeve side and the emergency shift operation shaft side, so that the emergency shift operation lever is not operated. When the emergency gear shift operation shaft is
Push the lever into the shaft end guide bore of the select shaft, engage the key of the emergency gear shift operation lever in the keyway of the shift and select shaft, and connect the shift and select shaft to the emergency gear shift operation lever. The system includes a select spring that connects the shaft, and in the event of a failure in the electrical system, pneumatic circuit, or hydraulic circuit, the transmission is manually shifted to first forward speed and reverse speed, allowing the vehicle to move on its own. . In this manner, the emergency gear shift operation mechanism of the present invention is mechanically constructed, and the transmission is manually and remotely operated to drive the vehicle to a repair shop.

DESCRIPTION OF EMBODIMENTS Preferred embodiments of the emergency shift operation mechanism used in the mechanical auto transmission of an automobile according to the present invention will be described below with reference to the drawings.

Figures 1 to 5 are diesel engines (not shown)
This system is applied to trucks (not shown) equipped with an engine, and is combined with a mechanical auto clutch (not shown) that interrupts and interrupts the transmission of power from the engine. A concrete side 10 of the emergency shift operation mechanism of the present invention is shown.

The emergency shift operation mechanism 10 is configured to operate the mechanical auto transmission 30 in the event that either the electrical circuit or the pneumatic circuit of the mechanical auto transmission 30 fails.
The transmission 30 is manually and mechanically remotely shifted to the first forward speed and reverse speed, and the truck is driven to the maintenance shop by itself. This emergency shift operation mechanism 10 is a mechanical automatic - A slide placed on the axis of the shift and select shaft 31 of the transmission 30, facing the end surface 32 of the shift and select shaft 31, with one end placed at an appropriate distance from the end surface.・-bu 11 and its sleeve 1
1, an emergency shift operation lever 13 fixed to the emergency shift operation shaft 12, a select spring 14, a cane (not shown), and a bush pull cable 15. The shift and select shaft 31 includes:
It is located on the gear housing of the transmission 30, more specifically on a gear shift rebay housing (not shown) screwed onto the gear shift housing of the gear casing. Further, the shift and select shaft 31 includes a shift and select lever (not shown), and further includes a shaft end guide on the end surface 3z in relation to the emergency shift operation shaft 12.・Open the bore 33, and
A key groove 34 is formed in the end surface 32.

The sleeve 11 is welded to a bracket 23 screwed to the gear housing, and has one end spaced apart from the end face of the shift and select shaft 31 at a predetermined distance. It is located on the axis of 31.

The sleeve 11 also includes a pair of stopper receivers 20.
20, a pair of slots 21.21 appropriately spaced from the stopper receiver 20.20 in the circumferential direction, and a pair of shifts 1122.21 connected to the slots 21.21.
It is equipped with 22.

The pair of strainer receivers 20.20 are formed in grooves, and the pair of slots 21.21 are dimensioned to have a groove width that allows a stopper 25 of the emergency shift operation shaft 12, which will be described later, to move freely. .

Further, the pair of shift grooves 22,22 are arranged in the circumferential direction of the stopper 25 when the emergency shift operating shaft 12 is shifted into the sleeve 11, that is, when it is rotated from side to side within the sleeve 11. Groove width that allows movement (
B), in other words, the groove width (B) necessary for the shift is measured, and of course the groove width (B) necessary for the shift is
It is wider than the groove width (A) of the slot 21.

Further, the pair of shift grooves 22,22 are arranged so that when the emergency shift operation shaft 12 performs a selection operation with respect to the sleeve 11, that is, when coupled to the shift and select shaft 31, the stopper 25 is The groove length L) is such that movement in the axial direction is allowed, in other words, the groove length L) required for selection is dimensioned.

The emergency speed change operation shaft 12 has one end guided in the shaft end guide bore 33 and is supported by the sleeve 11 so as to be able to reciprocate and rotate.

In addition, this emergency shift operation shaft 12 has a bin at the other end.
A bore 23 is formed, and a stopper 25 is attached to the bottle bore 23.
Keep typing.

Of course, the stopper 25 consists of a bottle, and the bottle 25
is dimensioned to have a length that extends outward from the outer circumferential surface of the sleeve 11, and is fitted into the stopper receiver 20, 20 in the normal state to maintain the emergency shift operation shaft 12 in a standby state. At that time, the stopper receiver 2
0,20 and is moved through its slot 21.21 into its shift groove 22.22, allowing its emergency shift operation shaft 12 to perform select and shift operations.

The emergency shift operation lever 13 has a bore (not shown) in the boss 26, one end of the emergency shift operation shaft 12 is passed through the bore, and the emergency shift operation lever 13 is inserted into the one end of the emergency shift operation shaft 12 at a predetermined position. Screw the boss 26,
The emergency speed change operation shaft] 2 is fixed to one end side.

Further, the emergency gear shift operating lever 13 has a key 28 protruding from the end surface 27 of the boss 26 that abuts against the end surface 32 of the shift and select shaft 31.
When the end surface 27 of the boss 26 is butted against the end surface 32 of the shift and select shaft 3, the key 2B is engaged with the keyway 34 of the shift and select shaft 31, and the shift and select shaft 31 is engaged with the key 2B.・
The select shaft 31 is soft-operable to the first forward speed and the reverse speed.

The select spring 14 is a coil spring.9-1 Its shift and select shaft 31
The bracket 23 and the boss 26 of the emergency shift operation lever 13
and around the sleeve 11.

The select spring 14 so arranged is such that when the pin 25 of the emergency shift operating shaft 12 is fitted into the groove 20.20 of the sleeve 1;
The emergency shift operating lever 1 is placed in a compressed state between the bracket 23 and the boss 26 of the emergency shift operating lever 13 by the emergency shift operating shaft 12.
3 is operated and its pin 25 is removed from its groove 20, 20 and fitted into its slot 21.21, the shaft end guide hole of the shift and select shaft 31. -0111611 of the emergency shift operating shaft 12 guided by 33 is further pushed into the shaft end guide bore 33, and the key 28 formed on the boss 26 of the emergency shift operating lever 13 is inserted into the shift and Select shaft 3
1, and the emergency variable speed operation shaft 1 is engaged with the shift and select shaft 31.
2 to enable transmission of select and shift operations to the shift and select shaft 31.

The cane is not shown, but the driver
In relation to the seat, it is placed on a stand fixed to the floor so that it can be pushed and pulled. It is sufficient that the stick is installed at a location that facilitates the operation of the driver, and for example, it can be placed on an instrument panel.

The bush pull cable 15 connects one end to the stick and the other end to the emergency shift operating lever 13, and transmits select and shift operations of the stick to the emergency shift operating lever 13.

Next, the operation of the emergency shift operation mechanism 10 configured as described above and used in a mechanical auto transmission system combined with a mechanical auto clutch will be explained.

In the normal state, as shown in FIGS. 1 and 2, the stopper 25 of the emergency shift operating shaft 12 is fitted into the stopper receivers 20, 20 of the sleeve 11, and the select spring 14 is connected to the emergency shift operating shaft 12.
As a result, the emergency shift operation lever 13 is compressed between the boss 26 and the bracket 23, and the emergency shift operation mechanism 10 is placed in a standby state.

In an emergency, that is, if a failure occurs in the electrical circuit or pneumatic circuit of the mechanical auto transmission, first push and pull the cane slightly to remove the stopper 25 from the stopper receiver 20. Remove,
The stopper 25 is fitted into the slot 21.21.

In that way, the stopper 25 is connected to the stopper receiver 20.
120, the select spring 14 extends and the select spring 14 inserts the emergency shift operating shaft 12 into the sleeve +1 so as to move the stop 25 into the shift groove 22.22.
, and connect one end of the emergency shift operation shaft 12 to the shaft of the shift and select shaft 31.
Push it into the end guide bore 33 and abut the boss 26 of the emergency shift operation lever 13 against the end surface 32 of the shift and select shaft 31, and at the same time,
The shift-and-select shaft 31 is moved to the first forward speed and reverse speed select positions.

The movement of the emergency shift operation shaft 12 by the select spring 14 is controlled by the emergency shift operation lever 13,
It is sensed by the driver via the bush pull cable 15 and the cane.

The cane is then pushed and pulled slightly into the position shown in FIGS. 4 and 5.

Subsequently, if the stick is pushed or pulled according to the stopped state of the truck, the transmission engine 30 is shifted to the first forward speed or the reverse speed.

As such, if the transmigrating gear 30 is manually and remotely shifted to first forward or reverse speed, the truck is driven forward or backward.

After that, the truck repeatedly pushes and pulls the cane depending on the road and drives itself to the truck's repair shop.

ADVANTAGES AND BENEFITS OF THE INVENTION From the foregoing, it is clear that mechanical autotransformers which are automatically operated by electro-pneumatic or electro-hydraulic systems have already been proposed and used. , its pneumatic circuit, or
Compared to an emergency transmission means using a hydraulic circuit, the emergency transmission operation mechanism used in the mechanical auto transmission of an automobile of the present invention is equipped with a left and select lever, and has a left and select lever. Shaft to
The end guide bore is opened, and a keyway is formed in the end face of the end guide, so that one end faces the end face of the shift and select shaft disposed in the gear housing of the transmission converter. The stopper receiver is located on the axis of the shift and select shaft at an appropriate distance from the stopper receiver, and is connected to the slot. a sleeve having a shift groove at the other end; one end of the sleeve is slidably and rotatably supported by the sleeve so as to be guided through the shaft end guide bore; and the sleeve is fitted into the stopper receiver. an emergency shift operating shaft having at its other end a stop extending into its sleeve so as to be movable through the slot and into its shift groove; fixed and its shift
The emergency shift operation lever is located between the sleeve side and the emergency shift operation shaft side, and is equipped with a key that engages with the keyway of the AND SELECT shaft. Push one end of the emergency gear shift control shaft into the shaft end guide bore of the shift and select shaft;
The key of the emergency speed change operation lever is engaged with the key groove of the shift and select shaft, and the select spring connects the emergency speed change operation shaft to the shift and select shaft. In the emergency shift operation mechanism used in the mechanical auto transmission of this invention, the mechanical auto transmission! Even if a failure occurs in the electric circuit, pneumatic circuit, or hydraulic circuit of the unit, the electric circuit, pneumatic circuit, or hydraulic circuit can be used independently of the electric circuit, pneumatic circuit, or hydraulic circuit. Without a doubt, the Transmitsian was the first to advance.
By manually and mechanically changing gears into forward and reverse speeds, automobiles are now able to move on their own, and even in such emergencies, automobiles can be driven from the point of failure to a repair shop and undergo various repairs. It can be applied to automobiles, and will be particularly useful for automobiles that drive on highways or in remote areas.

As for the relationship between the invention and the specific examples, from the specific examples of the present invention described with reference to the drawings, various design modifications will be apparent to those who have ordinary knowledge in the technical field to which this invention pertains. Modifications and modifications may be easily made, and furthermore, the content of this invention may be essentially the same as that invention, which satisfies essentially the same problem and achieves the same effect as that invention. M% could easily be converted into the same embodiment.

[Brief explanation of the drawing]

Fig. 1 is a front view of the Xl emergency shift operation mechanism applied to a truck equipped with a diesel engine and used in the mechanical autotransformer of this invention in normal operation; 3 is a partially enlarged perspective view of the sleeve of the emergency shift operating mechanism shown in FIG. 1, and FIG. 4 is a side view of the emergency shift operating mechanism shown in FIG. 1 in an emergency. 5 is a front view and a side view of the emergency shift operation mechanism shown in FIG. 4. FIG. 11...Sleeve, 12...Emergency shift operation shaft,
13... Emergency gear shift operation lever, 14 Select spring, 31... Shift and select shaft. Book 1 Figure Book 2

Claims (1)

[Claims] A shift and select lever is provided, and
A shaft end guide bore is opened in the end face, and a keyway is formed in the end face, so that one end faces the end face of the shift and select shaft disposed in the gear housing of the transmission. At an appropriate distance from the end face, press the shift and select button.
It is arranged on the axis of the shaft, and further includes a stopper receiver,
a sleeve having a slot at an appropriate distance from the stopper receiver in the circumferential direction and a shift groove connected to the slot at the other end; , is supported in the sleeve for reciprocating sliding and rotation, and is extended in the sleeve so as to be fitable in the stopper receiver and movable through the slot into the shift groove. an emergency shift operation shaft having a stopper at the other end thereof; an emergency shift operation lever having a key fixed to one end of the emergency shift operation shaft and meshed with a keyway of the shift and select shaft; It is arranged between the sleeve side and the emergency speed change operation shaft side, and when the emergency speed change operation lever is operated, one end side of the emergency speed change operation shaft is connected to the shaft end guide of the shift and select shaft.・Push it into the bore, engage the key of the emergency speed change operation lever in the key groove of the shift and select shaft, and connect the select spring that connects the emergency speed change operation shaft to the shift and select shaft. Emergency gear shift operation mechanism used in mechanical auto transmissions, including automobiles.