JPH03260412A - End structure of control cable - Google Patents

Abstract

PURPOSE:To improve operability by connecting the end of rod at the end of a push-pull control cable rotatably via a rubber mount and connecting an oscillating lever to a weight by means of a connecting ring. CONSTITUTION:A tip 9 of a rod at the end of rope is rotatably connected to the end of rope of a push-pull control cable 1 via a rubber mount 10, and an oscillating lever 11 on the driven side which is mounted on static member rotatably is connected to a weight 15 by means of a connecting link 16. Addition of this simple member allows the marked improvement of operation feeling of push-pull control cable without bringing coming off of shift and reduction of moderation feeling.

Description

DETAILED DESCRIPTION OF THE INVENTION C. Industrial Application Field The present invention relates to an end structure of a control cable. More specifically, the present invention relates to an end structure used in a connecting portion between a push/pull control cable and an outer lever of a transmission in a cable-type transmission change device of an automobile.

C. Prior Art] In general, equipment or equipment that uses a push-pull control cable as a means of transmitting operating force has a link-type operating feel, which makes it easier to transmit load fluctuations because the control cable itself is light in weight. inferior to. For example, with a cable-type transmission remote control device, there is a feeling of two gears being engaged (the feeling that there are two peaks of load when switching) and a feeling of grinding (a rough feeling when switching, as if it is rubbing against something). ) has been pointed out.

Conventionally, as a method of improving the operating feeling, a rubber mount structure as shown in FIG. 4, for example, has been proposed.

This cable is a push-pull control cable (a cable end rod connected to one end of the inner cable n of 211 and an outer lever Q4, which is a driven member), which is rotatably connected via a disc-shaped rubber body. It is a rubber body □□□
This elastic deformation makes the operation feel smooth.

Further, as shown by the imaginary line in Fig. 4, a disc-shaped weight 4 is provided on the outer periphery of the ring-shaped end (4) of the cable end rod,
A mechanism has also been proposed in which the moment of inertia of the outer lever Q4 is increased, thereby improving the operational feel.

C Problems to be Solved by the Invention] Although the rubber mount structure reduces the feeling of two steps and the stiffness to some extent, it is not sufficient from the viewpoint of operational feeling.

In addition, when a weight (A) is provided on the outer periphery of the cable end rod, it gives an unbalanced moment of inertia to the outer lever ff4 of the transmission. This is undesirable because it may cause damage to the transmission itself.

Furthermore, it is conceivable to increase the weight of the outer lever itself to provide a sufficient moment of inertia, but the effect of its own weight may cause the gear to drop out (the gear returns to neutral due to transmission vibration when driving), or the moderation This results in the disadvantage that there is a loss of sensitivity.

The present invention can be configured by adding simple parts to the connecting part between the cable end rod and the mating member, and it significantly improves the operating feeling and eliminates side effects such as missing shifts and a decrease in the sense of moderation. The purpose is to provide an end structure for control cables that does not occur.

[Means for Solving the Problems] The structure of the present invention includes fa) a cable end rod attached to a cable end of a push/pull control cable and an end of a +b+3 cable end rod that are rotatably connected via a rubber mount. At the same time, a swinging lever on the driven side is rotatably provided with respect to the stationary member; (c) a weight is rotatably provided with the stationary member; It is composed of a moving lever and a link that connects the moving lever to each other.

In the above structure, it is preferable that the rotational axis of the weight is provided in a direction perpendicular to the horizontal plane.

Further, the weight may be configured with a lever having weights at both ends (or one end).

[Function] When the inner cable is operated in the push or pull direction, the swing lever rotates via the cable end rod. At this time, the elasticity of the rubber body improves the operating feeling to some extent.

Furthermore, at that time, the weight is rotated by a predetermined angle via the link. The weight has the effect of increasing the inertia of the swing lever, so to speak, and therefore, in combination with the elastic action of the rubber body, moves the resonance frequency of the vibration transmission system from the transmission to the operating lever to a lower frequency side.

This changes the operating feel to be extremely smooth and moderate.

Furthermore, since the weight is supported separately from the swing lever and the cable end rod, its own weight does not affect the swing lever and the cable end rod. Therefore, even when used in a transmission, the transmission and control cable will not be damaged.

[Embodiment] Next, the end structure of the present invention will be explained with reference to the drawings.

FIG. 1 is a plan view showing an embodiment of the end structure of the present invention, FIG. 2 is a partially cutaway perspective view of the end structure shown in FIG. 1, and FIG. 3 is a diagram of a weight according to the present invention. FIG. 7 is a front view showing another embodiment.

Push-pull control cable (1) shown in Figure 1
consists of an inner cable (2) capable of transmitting force in both push and pull directions, and a conduit (3) for guiding the inner cable (3) swingably and without buckling.

One end of the conduit (3) is fixed via a cable cap (4) to a stationary member (5), such as a bracket fixed to the transmission case of a motor vehicle. A spherical enlarged portion (7) of a guide vibe (6) is rotatably supported at the end of the cable cap (4), and both constitute a ball joint.

There is a guide rod (rope end rod) inside the guide vibe (6).
(8) is slidably inserted. Guide rod (8
) The end of the inner cable (2) is fixed to the left end (8a>) of the guide rod (8).The tip (9) of the guide rod (8) is formed into a ring shape as shown in Figure 2. A disc-shaped or cylindrical rubber body 00) having a hole (10a) in the center is fitted into the tip (9).

On the other hand, the outer lever (swinging lever) a to be operated
The outer lever (I) is rotatably connected to one end (+21) of an automobile transmission, etc.
A bottle □□□ is erected in the middle part of I), and the bottle 0 is rotatably inserted into the hole (10a) of the rubber body 00). Note that the bottle 03 and the com body 00 are fixed,
The rubber body (goods) and the tip (9) of the guide rod (8) may be made to slide.

The shaft 041 of one end 021 of the outer lever 01) is connected to a transmission fork (not shown), etc., and has the same function as the conventional lever.

Furthermore, in another part of the transmission, the shaft center H5a
A weight lever consisting of a lever (15b) and weights (15c) at both ends of the lever is provided so as to rotate around the lever. The weight □ is connected to the outer lever 01) by a link OQ to form a four-point link mechanism.

Note that the guide rod (8) is at the center position of the operation stroke.
and the outer lever (II) are substantially at right angles, and the link 08 is arranged parallel to the guide rod (8), that is, at right angles to the outer lever (01).

In the horizontal movement, the distance M (R1) from the center of rotation of the outer lever 01) to the center position of the tip (9) of the idle rod (8) (position of the bin 0) is the center of rotation of the outer lever 01). The distance (R2) from ) is larger than the distance M (R3).

In the end structure configured as described above, the inner cable (2)
When the outer lever 01) is operated in the direction of the arrow (c) or (D), the outer lever 01) moves at a certain angle (
al). At this time, the weight □□□ is rotated by an angle (θ2) larger than the angle (al) of the outer lever through the link.

As a result, when operating the inner cable (2) via the shift lever (not shown), you will not feel any small vibration components, and it will be fine! ]I can give a sense of volume.

Therefore, the operating feeling becomes much smoother than when the weight is small, and the operating feeling can be improved even though the feeling of moderation is impaired.

Note that, as in the structure shown in Figures 1 and 2, if the link radius (R2) of the outer lever is made larger than the link radius (R3) of the weight and smaller than the link radius (R1) of the guide rod, the weight movement will be reduced. The rotation angle (θ2) is R2S R2 θ"θ' xR3= )it ' R3 (However, S
(stroke of the inner cable) becomes larger, so the moment of inertia of the weight acts more effectively.

Also, the weight (2) may be made heavier overall, but
It is preferable to concentrate the weight on the peripheral portion as shown in FIG. 1, since this increases the moment of inertia.

Furthermore, it is preferable to set the center of gravity of the weight □ as the center of rotation, since this reduces the influence of its own weight when it is rotated by the outer lever 01). Further, if the center of gravity of the weight 6 is off from the center of rotation, it is preferable to arrange the center of rotation in a direction perpendicular to the horizontal plane, thereby reducing the influence of its own weight.

In the structure shown in FIG. 1, the outer lever 01) and the weight □ rotate about axes parallel to each other, but as shown in FIG. 2, they may be in a so-called twisted position. Further, although the old weight shown in FIG. 1 is provided with weights (15c) at both ends, only one may be used. Furthermore, as a weight, the third
A disk-shaped weight as shown in the figure can also be used.

[Effects of the Invention] When the structure of the present invention is used, the operating feeling when operating the swing lever with the inner cable of the push-pull control cable is improved. In addition, the structure is 1m iti, so there are no disadvantages associated with politics.

[Brief explanation of drawings]

Fig. 1 is a partially sectional plan view showing an embodiment of the end structure of the present invention, Fig. 2 is a partially cutaway perspective view of the end structure of Fig. 1, and Fig. 3 is a plan view showing an embodiment of the end structure of the present invention. FIG. 4 is a front view showing another embodiment of the weight, and a plan view showing an example of a conventional end structure. (Main symbols in the drawing) (1): Push/pull control cable (8); Guide rod (9): Tip (goods): Rubber body (Al): Outer lever □□□, Oc4: Weight (18: Link fang 2 Figure guide rod Figure 3

Claims (1)

[Claims] 1. (a) A cable end rod attached to the cable end of a push-pull control cable; (b) The end of the cable cable end rod is rotatably connected via a rubber mount and is stationary. a swinging lever on the driven side that is rotatably provided with respect to the member; (c) a weight that is rotatably provided with respect to the stationary member; (d) the weight and the swinging lever; A control cable end structure consisting of a link that connects the two together. 2. The structure according to claim 1, wherein the rotational axis of the weight is provided in a direction perpendicular to a horizontal plane. 3. The structure according to claim 1, wherein the weight is a lever having weights near both ends.