JPS5933703Y2 - Shift position holding device for automatic transmission for automobiles - Google Patents

Description

[Detailed description of the invention] This invention is passed through the center hole of the shift lever of an automatic transmission for automobiles, attached to the lower end of the rod that is lowered by pressing the button on the head, and protrudes to the outside of the lever so that it can move up and down. A cam forming plate on which a shift zone holding cam is formed to engage the engaged pin is integrally provided with an engaging recess in a continuous wave shape corresponding to the shift position of the shift lever,
A sliding guide for a sliding piece provided with a locking pin that is pressed into one of the engaging recesses is provided on the shift lever, and its purpose is to The uneven surface of the shift zone holding cam and the engaging recess for each shift position are formed on the cam forming plate by continuous wave-shaped uneven surfaces,
The shift position of the shift lever is maintained, and a clear tactile sensation is generated when the lever is moved.

In addition to reducing production costs and assembly costs, an engaging concave surface is provided (thereby, the shift lever's shift position action is double-maintained, and the shift zone holding cam moves and engages when the shift zone moves). The purpose is to produce a holding action and a tactile action that cannot be achieved by the lever's retaining pin alone.

An embodiment of the present invention will be described with reference to the accompanying drawings. In the drawing, reference numeral 1 denotes a mounting plate that is fixed to the body floor or chassis of an automobile, and a shift lever 3 that projects upward from a support shaft 2 supported at the center of the bottom. A bushing rod 5 is loosely fitted into the center hole 4 of the lever 3, and the bushing rod 5 descends against the elasticity of the receiving and receiving strip 8 at the lower end by the lateral compression of the bushing button 9 on the head.
An engagement pin 7 is provided which projects from a sliding piece 6 at the lower end of the rod 5 through a long hole 10 to the outside so as to be able to move up and down. Attach the cam forming plate 11.

In this embodiment, the shift lever 3 is P and R2H.

It has five shift positions, D and L, and among these positions, P, R, N, D, and L constitute position zones I, n, and III, respectively.

Therefore, in order to prevent danger, the shift lever 3 is configured so that the engaging pin 7 cannot be moved inadvertently from position zone I, and although it is possible to move the engaging pin 7 from position zone ■ to ■. It is necessary to operate the cam forming plate 1 in a way that prevents unnecessary movement from ■ to ■.
A through hole 12 is bored in the hole 12, and the uneven surface of the shift zone holding cam 13, which is suitable for the operation described above, is provided on the upper edge of the hole 12, so that the engaging pin 7 comes into contact with the elastic force of the receiving and starting strip 8.

Further, a wave-shaped continuous portion 14 is formed on the upper part of the cam 13 in which concave portions P/, R/, N', 117, and L' are provided corresponding to respective positions.

On the outer periphery of the shift lever 3, a vertically cylindrical sliding guide 15 is fixed to the side of the engagement pin 7 by welding or the like, and a slider 17 that protrudes downward is provided inside the sliding guide 15. Child 17! A locking pin 18 is provided that projects from a long hole 16 in the vertical direction formed in the sliding guide 15, and a roller 19 that presses and locks into any one of the concave portions of the continuous corrugated portion 14 is fitted into the locking pin 18. The shift lever 3 is located at the lower part of the movement guide 15.
A spring hook attached to the holder applies a traction spring 21 to the protrusion 20 and the lower end of the slider 17.

FIG. 3 shows another embodiment, in which the sliding guide 15a has a cylindrical shape with a closed upper part, and a pushing strip 21a and a slider 17a are sequentially fitted into the slider guide 15a from the elongated hole 16a to the slider 17a. The attached locking pin 18a is projected and the roller 19a is fitted onto it.

FIG. 4 shows still another embodiment, in which the sliding guide 15b has a cylindrical shape with a closed upper part, and a pressing strip 21b and a slider 17 are connected to the sliding guide 15b.
b sequentially fitted, and the rotation stop pin 22 provided on the slider 17b.
is fitted into the long groove 23 of the sliding guide 15b, the lower end of the slider 17b is made into a trident shape, and the locking pin 18b is inserted, and the pin roller 19b is fitted therein.

As exemplified above, the present invention engages an externally protruding engagement pin provided at the lower end of the bushing rod that is inserted into the center hole of the shift lever and lowered from the push button of the bushing button on the head. A shift zone holding cam and a large number of continuous wave-shaped engagements that hold the position of each shift position of the lever by elastic pressure contact of a locking pin provided on the outside of the lever, and that generate a tactile sensation when the lever moves. A configuration in which the recess and the recess are provided on a single cam forming plate and fixed to the mounting plateζ
This simplifies the structure, and there is no need to separately install a plate with continuous wavy engagement recesses near the shaft support where various accessories of the shift lever must be attached. Automatic transmission shift lever
This has various effects such as making the production and assembly of the device much easier.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the present invention, and FIG. 1 is a side view;
FIG. 2 is a partially cut-away front view, and FIGS. 3 and 4 are partially cut-away front views of the shift lever showing the respective embodiments. 1...Mounting plate, 2...Support shaft,
3...Shift lever 15...Button rod, 6...Slider, 7...Engagement pin, 9...Button button, DESCRIPTION OF SYMBOLS 11... Cam forming plate, 12... Tomoko L13... Shift zone holding cam, 14... Waveform continuous part, 15
゜15a, 15b...Sliding guide, 17, 17a
. 17b...Slider, 18t 18a -18b
...Lock pin.

Claims (1)

[Scope of utility model registration request] a mounting plate to an automobile body or chassis; a shift lever protruding from a support shaft provided on the mounting plate;
An engagement pin that protrudes outwardly from the lower end of the rod, which is passed through the center hole of the lever and is lowered by pressing the button on the head so as to be able to move up and down, is placed along the side f of the swing path of the lever. Equipped with a cam forming plate that forms a shift zone holding cam that is fixed to the mounting plate and engaged with a retaining pin, and the cam forming plate has a wavy continuous model with an engaging recess for each shift position. Strain and form the shift lever.
A shift position holding device for an automatic transmission for an automobile, characterized in that a sliding guide of a slider provided with a locking pin that is pressed against one of the engagement recesses by spring elasticity is fixed.