JPS6039222A - Operating lever device - Google Patents

Abstract

PURPOSE:To deliver smoothly and surely the motion between the operating knob and an operating rod by pushing the operating knob so as to turn an operating rod around a shaft center and releasing the restriction of turning of the shaft in accordance with the turning. CONSTITUTION:A rack 56 is provided to the operating knob 38 along its pressing direction and also a pinion 54 engaged with the rack 56 is provided to a dinted rod 50. Further, the pushing of the knob 38 allows the rod 50 to be turned around the shaft center. The locked cam rod 60 is turned following the turning of the rod 50 so as to restrict the turning of the shaft 44 via a lock sleeve 26.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control lever device, and more particularly to a shift lever device for shifting operations in an automatic transmission, which is provided with an operating rod inside a shaft portion.

Operation lever devices, such as shift lever devices for automatic transmissions and parking brake lever devices for operating parking brakes, have the base of the shaft fixed to a rotating member so that it can rotate around a single axis. A predetermined rotation regulating mechanism locks the shaft at a predetermined angular position in the rotation direction, and controls the predetermined mechanism according to the locking position. The mechanism is configured to release the locking, that is, rotation restriction upon operation. In order to operate the rond, an operating knob is usually provided in a grip provided at the upper end of the lever so that it can be pushed in, and a cam part is provided between the knob and the operating rond. When the knob is pushed in, the operating rod is configured to move in the axial direction by the action of the cam portion.

However, for convenience of operation, this knob is usually pushed in from a direction almost perpendicular to the axis of the operating iron, so when the knob is pushed in to operate the operating iron, it is difficult for the iron to operate smoothly. There was a problem.

The present invention was made against this background, and its purpose is to provide an operating lever device that can smoothly and reliably transmit motion between an operating knob and an operating rod. There is a particular thing.

In order to achieve this object, the present invention provides an operation knob with a rack k MW along the direction in which the operation knob is pushed in, and a pinion that engages with the rack on the actuation rod, so that when the operation knob is pushed in, the operation is performed. While the iron can be rotated about its axis, a restriction release means is provided which acts on the restriction mechanism according to the rotation of the operating iron and releases the restriction on rotation of the shaft by the restriction mechanism. It is characterized by this.

That is, in the conventional operating lever device, when the operating knob is pushed in, it is unavoidable to generate relatively large sliding resistance at the engagement portion between the knob and the actuating rod, and at the tab cam portion. Since the knob pushes the two ends from the side, this causes the problem that the rond is twisted and it is difficult to operate smoothly. However, in the operating lever device according to the present invention, the push-in movement of the knob is controlled by the operating rond. Because it converts into rotational motion, there is almost no sliding resistance on the engaging parts, and the force acting on the rond is applied in the circumferential direction of the pinion teeth, so when operating the knob, This allows the rondo to operate smoothly without having to pry the operating rod.

Further, in the operating lever device having such a configuration, a restriction release means that acts on the regulating mechanism in accordance with the rotation of the operating iron and completely releases the rotational restriction of the shaft by the regulating mechanism is moved in the axial direction of the operating iron. furthermore, a fixed sleeve is attached to the rotating member disposed on the rotating NIS of the shaft, and the base of the shaft is movably inserted into the fixed sleeve. and is fitted onto the outside of the shaft so as to be movable relative to the shaft, extends between the fixed sleeve and the shaft base, and is movable relative to the fixed sleeve; a locking sleeve that allows relative axial movement with the shaft to increase frictional force, and prevents movement of the shaft relative to the fixed sleeve and at the same time prevents movement of the shaft itself relative to the fixed sleeve; and a moving means for performing relative axial movement between the lock sleeve and the shaft, the length of the operating lever can be expanded/contracted and adjusted in the axial direction. It becomes possible to do so.

In recent years, in the case of operating lever devices such as shift lever devices for changing gears in automobiles, due to the individualization of users, the length of the shaft of the lever can be adjusted freely according to the user's body shape or preference. There is an increasing demand for something with a structure that can be obtained.

However, for automatic transmissions that have an operating iron inside the shaft, such as a shift lever (-device), if you try to change the shaft length, you must also change the length of the operating iron accordingly. Alternatively, it is necessary to ensure that the operating position relative to the actuating iron does not change even if the length of the shaft is changed.

However, in the operating lever device according to the present invention, although fm is characterized by smooth operation of the operating rond, the operation of the rond for releasing rotation restriction on the lever depends on the position of the rond in the axial direction. It is configured to be secured without any concern. In addition, the shaft itself has a structure that can be pushed in or pulled out in the axial direction, so that the operating lever device according to the present invention can freely adjust the length of the lever according to the user's preference. This gives rise to the following characteristics.

In order to further clarify these features of the present invention, embodiments of the present invention will be described in detail below with reference to the drawings.

Figures 1 to 5 show the shift lever device of an automatic transmission.
While the base plate 12 is held on the base plate 12, the bolt 14 is screwed into the threaded portion formed at one end.
Fixed to il. Note that 16 is a washer. A sleeve 20 is fitted onto the control shaft lO via a bush 18, and a control lever 22 is fixed to this sleeve 2o so that the lever 22 can be rotated together with the sleeve 20 around the control shaft 10. It has become.

:+>) 0-/l/L/ Bar 22H1 It is connected to the transmission via a link mechanism (not shown), and the speed change is controlled according to the rotation angle position of the lever. A fixed sleeve 24 is also fixed to the sleeve 20 so as to extend in a direction perpendicular to the axis of the control shaft 1o.
4, the base of the hollow locking sleeve 26 is slidably fitted. A T-shaped glyph 1280 cylindrical portion 30 is fitted to the outside of the upper end of the lock sleeve 26 so as to be relatively movable in the axial direction.
It constitutes the handle part of. The grip 28 is composed of a cylindrical portion 30 and a main body portion 32, and the cylindrical portion 30 and the main body portion 32 are fastened together by a screw 36 at a flange 34 formed on the cylindrical portion 30. The main body part 32 is
The operation knob 38 has a knob insertion hole, and the operating knob 38 is disposed therein so as to be pushable therein, and a knob spring 42 is disposed between one end 7 of the insertion side of the knob 38 and a spring seat 40 formed on the main body 321. The knob 38 is biased in the direction of protruding from the grip 28.

On the inner side of the lock sleeve 26 is a longitudinal shaft 4 which together with the fixed sleeve 24 constitutes the shift lever 5.
4 is fitted to be movable relative to the lock sleeve 26, and its shaft 44 is fitted into the elongated hole 46 of the lock sleeve 26.
It is fastened to the cylindrical portion 30 of the grip 28 by a screw 48 passing through. Further inside the shaft 44, a detent rod 50 as an operating rod is housed, and this rod 50 has a disk portion 52 at its upper end. movably supported. At the further upper end of this disc portion 52,
A binion 54 is integrally provided. That is, a pinion 54 is integrally fixed to a pin-shaped portion at the upper end of the rod so that they can be rotated together, and a rack 56 is formed on the knob 38 along the pushing direction. The rack 56 and the pinion 54 are in an engaged state. The rack 56 is formed at the bottom of the U-shaped notch formed in the knob 38.
A binion 54 is housed in the notch, and its outer shape is formed into a hexagonal shape, and a hexagonal hole 58 is provided at the lower end of the binion 54.
A cam rod 60 is fitted therein. That is, the cam rod 60 is engaged with the detent rod 50 in a state in which the detent rod 50 is relatively movable in the axial direction and in a state in which both rotate together. A hunt roll shaft 10 is attached to the lower end of the cam rod 60.
A guide rod 62 extending toward the cam rod 60 is fixed to the cam rod 60 by bolts and washers so as to be relatively rotatable. The lower end surface of the cam rod 60 is formed as an inclined cam surface 64, and a projection 68 provided on a holding block 66 as a follower member is brought into contact with this cam surface 64. The holding block 66 holds the engagement bin 70
It has a cylindrical shape and is slidably fitted into the inner surface of the shaft 44,
The protrusion 68 is formed on the upper end thereof, and one end of a spring 72 is brought into contact with the lower end surface to urge it upward in the figure. The engagement bin 70 is attached to the holding block 6
6, one end of which is held almost horizontally by the shaft 4.
4. It is inserted into the elongated hole formed in the lock sleeve 26 and the fixed sleeve 24, and! , and the other end thereof passes through the elongated holes formed in the shaft 44, the lock sleeve 26, and the fixed sleeve 24, and enters into the engagement hole 76 of the detent plate 74 disposed on the opposite side of the shaft 44. There is. As shown in FIGS. 1 and 3, the detent plate 74 has an engagement hole 76 in the center, is arranged parallel to the rotational direction of the lever 15, and has a mounting end thereof. It is fixed on the base plate 12 at. The upper end of the engagement hole 76 is formed into a stepped shape, and each part has a plurality of positioning parts P, JN for locking the engagement pin 70 and regulating rotation of the lever.

D.2. It is said to be L.

As shown in FIG. 4, the lower end of the lock sleeve 26 has a slit 78 of a constant length along the axial direction.
is inserted, and the ■ζ portion sandwiched by these slits 78 is
It is formed as an elastic part 80. The elastic fA80 has a shadow shape that is slightly expanded outward, and when fitted into the fixed sleeve 24, these elastic parts 80 are pressed against the fixed sleeve 24. .

A protrusion 82 that rises inward with a predetermined curvature is formed at the lower end of each of these elastic parts 80, and this protrusion 82
A tapered surface 84 is formed on the outer side of the lower end portion of the shaft 44, which is positioned approximately corresponding to the lower end portion of the shaft 44, so that the tapered surface 84 tapers away from the protrusion 82 as it moves downward.

On the other hand, a male threaded portion 86 is formed on the outer side of the second end of the lock sleeve 26, and a lock ring 88 as a threaded member is screwed into this male threaded portion 86. The upper end of the lock ring 88 is formed as a seven-rack part 90, and the seven-rack part 90 is accommodated in the disc-shaped recess of the grip cylindrical part 300, and the outer peripheral part of the main body is formed as shown in FIG.
As shown in FIG. 6, it is exposed to the outside through a rectangular notch 90 formed in the grip cylindrical portion 3o, and can be rotated using this exposed portion.

Note that a display device 98 is arranged on the side of the shaft 44,
The shift position of the shift lever 15 is displayed. In the figure, reference numeral 94 denotes an instruction section that rotates together with the shaft 44, and a display section 9 is placed opposite to this instruction section 94.
6 is provided.

99 is a frame.

Next, the operation of the shift lever device configured as described above will be explained.

When the operating knob 38 is pushed to the left in FIG. 11 against the biasing force of the knob spring 42 with respect to the shift lever 15 locked at a predetermined angular position, that is, a predetermined shift position,
The pinion 54 meshed with the rank 56 is rotated,
At the same time, the detent rod 50 is rotated integrally. When the detent rod 50 is rotated, the cam rod 60 that is non-rotatably engaged with the detent rod 50 rotates, causing the cam surface 64 at the lower end thereof to rotate. Then, the holding block 66, which is brought into contact with the cam surface 64 at the protrusion 68, is pushed down against the biasing force of the spring 72, and the engagement pin 70f is moved in the same direction. As a result, the engagement pin 70 is disengaged from the positioning portion of the engagement hole 76 in the detent plate 74, and the lever 15 is now in a state where it can freely rotate. Therefore, lever 1
5 to the desired shift position and release the knob 38.
The knob 38 is pushed out from the grip 28 by the biasing force of the knob spring 42. At this time, the pinion 54 that engages with the rack 56 of the knob 38 is rotated, and the detent rod 50f and further the cam rod 60 are rotated together. When the cam surface 64 rotates due to the rotation of the cam rod 60, the engagement pin 7 held by the holding block 66
0 is raised by the biasing force of the spring 72 and pushed against the positioning portion of the detent plate 74' to lock the lever 15 at a new shift position.

Next, the height of the shift lever 15 is adjusted as follows.

First, the lock ring 88 is rotated in a direction in which the grip cylindrical portion 30 protrudes from the lock sleeve 26, that is, in a direction in which it is relatively moved upward in FIG.

At this time, the screw 48 connecting the grip cylindrical portion 30 and the shaft 44 moves within the elongated hole 46 formed in the shaft 44. When the grip 28 is relatively moved in the direction in which it is projected from the lock sleeve 26, the shaft 44 fastened to the grip cylindrical portion 30 by the screw 48 is also moved in the same direction. In other words, the force generated between the cylinder 88 and the lock sleeve threaded portion 86 due to the rotation of the lock ring 88 to cause relative movement is transmitted to the shaft 44 via the grip 28. When the shaft 44 is relatively moved upward to a position where its lower end is removed from the protrusion 82 formed on the inner surface of the lock sleeve 26, the elastic portion 80 of the lock sleeve 26
The expansion force acting on the locking sleeve 2 is reduced, and the locking sleeve 2
6 becomes movable relative to the fixed sleeve 24 in the axial direction. Therefore, the grip 28 is adjusted to a desired height position by pulling out the lock sleeve 26e from the fixing sleeve 24 or pushing it in.

At this time, the detent rod 50
It is relatively moved up and down along the square hole 58. Next, the lock ring 88 is rotated in the opposite direction to that described above. This causes the shaft 44 to move downward,
Once it reaches a certain position, it will be locked in place again.

That is, when the shaft 44 descends, the lower end chi 84 comes into contact with the protrusion 82 of the lock sleeve 26, and as the shaft 44 further descends, the tip 84 contacts the protrusion 82 of the lock sleeve 26.
4 rides on the protrusion 82 while pushing it outward.

The reaction force at this time causes the protrusion 82, that is, the lock sleeve elastic g80, to expand outward and be pressed against the inner surface of the fixed sleeve 24, increasing the frictional force therebetween.

As a result, relative movement between the lock sleeve 26 and the fixed sleeve 24 is prohibited, and the grip cylindrical portion 30, which moves together with the twisted shaft 44, is engaged with the lock ring 88 and the lock sleeve threaded portion 86. The shaft 44 is locked here because it cannot move freely.

In this way, in the above device, the movement of the knob is transmitted to the detent rod by the engagement of the rack and pinion, so the sliding resistance that is seen in conventional devices does not occur at the engaging portion of the knob. The pushing in and actuation of the detent rod are performed in a circular manner, contributing to an improved feeling during operation.

In addition, the above device has a structure in which the detent rod is movable up and down, and the shaft can be protruded from or pushed into the fixed sleeve. In other words, the position of the grip can be adjusted to any position according to each person's body shape or preference, and the operation part has a power booster that doubles the rotational operation force and converts it into the movement force of the shaft. Because it is a mechanical part, the shaft position can be easily locked and unlocked with a small amount of operating force, and since the operating part is installed in the grip, these operations can be performed in a normal driving position. It has special features.

Note that the operating lever device according to the present invention includes the pond of the above aspect,
It can be implemented in various ways. For example, a projection formed on the inside of the locking sleeve could also be formed on the outside of the shaft.

In this case, it is necessary to allow the protrusion of the shaft to come off the underside of the lock sleeve. Of course, if a hole is formed in the lock sleeve into which this protrusion can fit, when the protrusion enters the hole, the frictional force between the lock sleeve and the fixed sleeve is reduced, and conversely, when it comes out of the hole, The lock sleeve elastic portion may be configured to be expanded.

The moving part that moves the lock sleeve and the shaft relative to each other can be provided directly between them without using a grip, and the engagement of the detent rod and cam rod as actuating rods can also be done on one side. A protrusion may be formed on the other side of the longitudinal groove, and the protrusion may be inserted into the groove so as to be movable relative to the groove in the axial direction.

In addition, the operating lever device according to the present invention can be modified in various ways based on the knowledge of those skilled in the art.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a shift lever device which is an embodiment of the operating lever device according to the present invention, and FIG. 2 is a cross-sectional view taken along the line 1 in FIG. FIG. 3 is a fourth side view of the apparatus shown in FIG. FIG. 6 is a sectional view taken along the line -Vl in FIG. 5. 】5 Shift lever 22: Control lever 24: Fixed sleeve 26 Nirosoku sleeve 28, Daritsub 3
8: Operation knob 44: Shaft 50: Detent rod 54: Binion 56 Two racks 58! Hexagonal hex 60: Cam rod 64: Cam 66: Holding block 68 Protrusion 70: Engagement pin 72 Spring 74: Detent plate 86, threaded portion 88: Lock ring Applicant Kojima Press Kogyo Co., Ltd.

Claims (1)

[Claims] (1) An operating knob is provided in a grip attached to the upper part of a hollow shaft that can be rotated about one axis on the base side, and the operating knob is pushed into the shaft. By activating the disposed operating iron and releasing the restriction on rotation of the shaft by the restriction mechanism that restricts rotation of the shaft, rotation of the shaft is permitted and a predetermined mechanism is controlled. In the operating lever device, the operating knob is provided with a rank along the pushing direction thereof, and a pinion that engages with the rack is provided on the operating rond, and when the operating knob is pushed in, the operating rond is aligned with its axis. The operation is characterized in that a restriction release means is provided which acts on the restriction mechanism in accordance with the rotation of the actuating rod and releases the rotation restriction of the shaft by the restriction mechanism. Lever device. (2) The regulating mechanism described in @ includes an engaging member that can be moved in the axial direction of the shaft, and the movement of the engaging member regulates and releases the rotation of the shaft, and also controls the rotation of the shaft. The release means includes a cam member having a cam surface that is attached to the actuating iron and is rotated together with the actuating iron, and an abutment metal that abuts the cam surface of the cam member, and the release means has a cam member that is attached to the actuating iron and has a cam surface that is rotated together with the actuating iron, and an abutting metal that abuts the cam surface of the cam member, and according to the rotation of the cam member, tGi.
2. The operating lever device according to claim 1, further comprising a follower member attached to the retaining member, the follower member being moved together with the engaging member in the axial direction of the J shaft. (3) The actuating rod has a polygonal portion, and the cam member is a cylindrical member having a hole that is fitted into the polygonal portion in a relatively non-rotatable manner.
The operating lever device described in Section 1. (4) An operating knob is provided in a grip provided at the upper part of a hollow shaft that can be rotated around one axis on the base side so that the operating knob can be pushed in, and the operating rod is placed inside the shaft by pushing the operating knob. an operating lever device that allows rotation of the shaft and controls a predetermined mechanism by completely releasing the restriction on rotation of the shaft by a regulating mechanism that restricts rotation of the shaft. A rank is provided on the operation knob along the pushing direction thereof, and a pinion that engages with the rack is provided on the entire operating rod, so that when the operating knob is pushed, the operating rod rotates around its axis. While allowing full movement of the operating iron in the axial direction, acting on the regulation mechanism according to the rotation of the operating iron, and releasing the restriction on rotation of the shaft by the regulation mechanism. A restriction release means that engages with the operating rod is provided, and a rotation gls 4 disposed on the rotation portion of the shaft is provided.
Attach a rotating sleeve to J and movably fit the base of the shaft into the fixed sleeve,
Fitted on the outside of the shaft so as to be movable relative to the shaft, extending between the fixed sleeve and the base of the shaft, and movable relative to the fixed sleeve; a locking sleeve which allows relative axial movement between the shafts and increases the total frictional force to prevent movement of the shaft relative to the fixed sleeve and at the same time correct its own movement relative to the fixed sleeve; and a moving means for performing relative axial movement between the lock sleeve and the shaft. (9) The regulating mechanism includes an engaging member that can be moved in the axial direction of the shaft, and the movement of the engaging member regulates and releases the rotation of the shaft, and also releases the restriction in M. The means includes a cam member having a cam surface that is attached to the actuating iron and rotated together with the actuating iron, and an abutting portion that abuts the cam surface of the cam member, and the means includes a cam member that is attached to the actuating iron and has a cam surface that is rotated together with the actuating iron, and an abutting portion that abuts the cam surface of the cam member, and according to the rotation of the cam member, the shaft is rotated. The operating lever device according to claim 4, further comprising a follower member attached to the engaging member, which is moved together with the engaging member in the axial direction of the lever. The lock sleeve has a male threaded part formed on the outside of the upper end and a female threaded part, and is screwed into the male threaded part, and is rotatable independently and in the axial direction of the shaft. Claim 4 or 5, further comprising a ring member provided so as to be relatively immovable, and wherein the shaft is moved in the axial direction by a rotational operating force applied to the ring member. (7) The lock sleeve has a protrusion on the inner surface,
When the shaft moves in the axial direction and rides on the protrusion, the reaction force causes the base of the sleeve to expand outward, creating a frictional force between it and the fixed sleeve to fix the shaft. The operating lever device according to any one of claims 4 to 6, wherein the operating lever device is configured to cause the following to occur.