JPH0423697Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a column shift device in an automatic transmission.

(Prior Art) A gear shift operation of an automatic transmission is performed by operating a gear shift operation lever provided at a location that is easily accessible to the driver. For this reason, most gear shift control levers protrude upward from the floor between the driver's seat and passenger seat, but some shift levers are of the column shift type and are mounted near the steering wheel. An example of a column shift type is the one described in Japanese Patent Laid-Open No. 57-209427.

(Problems to be Solved by the Invention) In the conventional device, of which the above publication is an example, in order to shift, the control rod (operating lever) must be rotated while operating in its axial direction, making it difficult to operate. It is complicated and no different from the gear shifting operation of a manual transmission. Also, since the control rod itself moves in the axial direction,
The locating plate became larger and an outer cover was required to guide the locating rod, which increased the number of parts, and it was not possible to reuse parts from the floor shift type. The present invention has been made to solve this problem.

(Means for Solving the Problem) As a means for solving the above problem, the present invention provides a detent plate that protrudes laterally from an outer pipe that covers a transmission shaft provided along a steering shaft. , an outer pipe to which the detent plate is attached is provided coaxially with a speed change shaft provided with a speed change operation lever;
The detent plate is provided with an engagement hole for a boss that supports a detent pin, and an outer circumferential groove in which a positioning ball mechanism is engaged, and a positioning ball mechanism is provided on the side of the speed change operation lever, and a positioning ball mechanism is provided on the side of the speed change operation lever. The ball is urged toward the outer circumferential groove of the detent plate, the rotation surface of the gear shift operation lever and the detent plate surface are brought close to each other, and the ball is pushed into the interior of the gear shift operation lever and the grip attached to the tip of the gear shift operation lever. , a boss that supports the detent pin, a rod that presses the boss, and an operation button coupled to the rod are provided, and the operation button is moved in the axial direction of the gear shift operation lever to change the engagement position of the engagement hole of the detent pin and the boss. This is done by pressing the button.

(Function) With such a configuration, the shift operation can be performed simply by rotating the shift operation lever around the shift shaft, which greatly facilitates the shift operation.

(Embodiment) An embodiment of the present invention will be explained below with reference to the figures. 1 in Fig. 1 is a steering wheel;
2 is a column cover. An outer pipe 3 is provided along a steering shaft (not shown) that connects the steering wheel 1 and a steering mechanism (not shown), and a transmission shaft 4 is inserted into the outer pipe 3. The upper end of the transmission shaft 4 is located near the steering wheel 1, and the transmission shaft 4 has a detent plate 5 and a detent pin 7 engaged with an arbitrary step 6a of the hole 6 of the detent plate 5 at this portion. An operating lever 8 is provided. In other words, the detent plate 5 and the speed change operation lever 8 are
It protrudes laterally from an outer pipe 3 that covers a transmission shaft 4 provided along a steering shaft.

The operating lever 8 is made of pipe material, has a grip 9 attached to its tip, and has an operating button 10 inside thereof with a portion protruding from the tip.
is provided. Operation button 10 is rod 11
The boss 1 supporting the detent pin 7 described above
2 (see Figure 3). A mechanism for pushing a ball 14 using a spring 13 is provided on the side of the operating lever 8, and positioning is performed by fitting the ball 14 into a plurality of grooves 15 provided on the outer periphery of the detent plate 5. It's becoming like that. As shown in FIG. 1, a gear 16, a lever 17, a link 18, etc. are provided at the tip of the pipe 3, and the movement of the shift shaft 4 when the shift operation lever 8 is operated is transmitted to an automatic transmission (not shown). It is designed to do so.

This column shift device configured in this way can perform a gear shift operation simply by rotating the gear shift lever 8 around the gear shift shaft 4, and can perform a gear shift operation by simply rotating the gear shift lever 8 around the gear shift shaft 4. No need to push or rotate.

(Effects of the invention) Since the present invention is configured as explained above, it has the following effects.

The shift operation is easy because it only requires rotating the shift control lever around the shift shaft.

The ball locating plate can be made smaller.

Space in the column axis direction can be saved, especially the space between the steering wheel and the instrument panel.

It can be used in common with conventional floor shift type parts.

The outer pipe to which the detent plate is attached and the speed change shaft to which the speed change operation lever is installed are coaxial, and the ball is positioned by a groove on the outer periphery of the detent plate. This makes it possible to provide the spring and ball mechanism on the side of the gear shift operating lever. Therefore, the number of parts is small and the size can be reduced. In addition, since the detent plate surface and the rotation surface of the gear shift operation lever are close to each other,
This eliminates the need for a large installation space in the column axis direction from the steering wheel to the instrument panel.

A boss that supports a pin inside the gear shift operation lever,
A rod and an operation button are provided, and this is always biased toward the outside in the axial direction of the speed change operation lever.
Therefore, for normal shift operations, it is only necessary to grasp the grip and press the operation button only when shifting to the P position, etc., and the grip itself does not move in the axial direction of the gear shift operation lever, resulting in excellent operational stability. .

[Brief explanation of drawings]

Fig. 1 is a side view of one embodiment of the present invention, Fig. 2 is a partially cross-sectional view of Fig. 1 viewed from the direction of the arrow, and Fig. 3 is a side view of Fig. 1 as viewed from the direction of the arrow. It is a sectional view showing a cross section when viewed. 1... Steering wheel, 4... Speed change shaft, 5... Detent plate, 6... Hole, 7...
...Detent pin, 8...Speed control lever, 11...
...Rotsud.

Claims (1)

[Scope of utility model registration request] A detent plate is provided so as to protrude laterally from an outer pipe covering a gear shift shaft provided along a steering shaft, and the outer pipe to which the detent plate is attached is coaxially provided with a gear shift shaft provided with a gear shift operating lever. , the detent plate is provided with an engagement hole for a boss that supports a detent pin, and an outer circumferential groove in which a positioning ball mechanism is engaged; a positioning ball mechanism is provided on a side of the speed change operation lever; The ball is urged toward the outer circumferential groove of the detent plate, the rotating surface of the gear shift operating lever and the detent plate surface are brought close to each other, and the inside of the gear shifting operating lever and the grip attached to the tip of the gear shifting operating lever are pressed. The detent pin is provided with a boss that supports the detent pin, a rod that presses the boss, and an operation button coupled to the rod, and the operation button is connected to the shaft of the gear shift operation lever to change the engagement position of the engagement hole of the detent pin and the boss. A column shift device characterized in that it is configured to shift by pressing in a direction.