JPH0574725B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a cable end latching structure for remotely pulling and operating a cable material to swing an operated member.

<Prior art> Remote control mechanisms have been adopted in various fields that swing the lever by remotely towing a cable material moored to the free end of a pivoted operated member (hereinafter referred to as a "lever"). has been done.

FIG. 4 shows an example of a locking structure between a swingably pivoted lever and a cable material.

[Structure of the free end side of the lever] The free end of the lever A is formed into a U-shape by bending one end of a single plate, and the cable 3 is attached to the inside of the bend.
A groove 2 is formed for taking in the material from below.

A grip support piece 11 extending in the direction in which the end grip 4 is attached is formed at the bent free end.

Further, a spring support piece 12 extending in the pulling direction of the cable 3 is formed on the plate surface on the side facing the bent free end.

The upper surfaces of both supporting pieces 11 and 12, which are formed parallel to each other, are located on substantially the same plane and protrude.

There is also a type in which the spring support piece 12 and the grip piece 11 are provided on either or both of the bent free end or the plate surface facing the free end.

[Cable End Assembly Structure] An end grip 4 is fixed to the end of the cable 3, around which the coil spring 5 is wrapped.

Insert this cable 3 deeply to the bottom of the groove 2 of the lever A, and attach the end grip 4 to the grip support piece 1.
Hang it on 1.

In addition, the coil spring 5 wrapped around the cable 3 is
One end is brought into contact with the stationary member 6, and the other end is brought into contact with the upper part of the spring support piece 12 of the lever A in a compressed state.

When the lever A is operated by pulling the cable 3, both the support pieces 11 and 12 press the end clip 4 and the coil spring 5 from below, thereby preventing the cable 3 from falling off.

<Problems to be Solved by the Present Invention> When releasing the pull of the cable 3, the return resistance of the lever A may be large, or the lever A caused by the coil spring 5 may be forced to return by forcefully returning the cable 3.
In some cases, the cable 3 returns earlier than the return of the cable 3.

In the case of the conventional cable end structure, when the cable 3 moves back, the following problem occurs.

(a) The end face of the end grip 4 that has been turned back gets caught on the grip support piece 11.

Therefore, even if the pulling force of the cable 3 is released, the lever A remains pulled and cannot return to its original position.

(b) If the end grip 4 continues to be operated again while it is caught on the grip support piece 11 of the lever A, it will suddenly become unlatched due to vibrations, etc., which is very dangerous.

(c) If the end-rip 4 is disengaged from the grip support piece 11 while increasing the traction force of the cable 3, the traction resistance changes rapidly, making the cable 3 feel worse when pulled.

(d) When the end grip 4 is caught on the grip support piece 11, a local bending force is applied to the cable end.

When this bending force is applied repeatedly, the cable 3
The durability of the product may decrease and damage may occur.

<Object of the present invention> The present invention has been made to solve the above problems, and its purpose is to smoothly and safely carry out the pulling operation of the cable material while maintaining the function of preventing the cable material from falling off. The purpose of the present invention is to provide a cable end latching structure that can be easily attached to a cable end.

<Configuration of the Present Invention> An embodiment of the present invention will be described below with reference to the drawings.

In the description, since the members other than the lever are the same, the same reference numerals as those of the conventional device described above will be given, and the description thereof will be omitted.

<A> Cable end catching prevention means In the present invention, the grip support piece 11 formed on the lever 1 is replaced by the spring support piece 12 as shown in FIG.
Instead of forming the grip support piece 11 on the same plane as the spring support piece 12, only the grip support piece 11 is formed at a position separated from the support surface of the spring support piece 12 toward the shaft support side of the lever 1.

<B> Lever An example of the lever 1 is shown in FIG.

The lever 1 has the same basic configuration as the conventional lever, but differs in the following points.

As shown in FIG. 4, conventionally, the support surface of the grip support piece 11 that supports the end grip 4 and the support surface of the spring support piece 12 that supports the coil spring 5 are located on substantially the same plane.

In the present invention, only the grip support piece 11 is moved below the spring support piece 12, that is, toward the pivot support side of the lever 1.

<Other Examples> As shown in FIGS. 2 and 3, the grip support piece 11
The tip 13 of the groove 2 may be bent so as to reach the axis 7 of the groove 2.

In the case of this embodiment, even if the coil spring 5 is damaged and the cable 3 is about to fall, the bent end portion 13 of the grip support piece 11 can prevent the cable 3 from falling off.

Note that it is of course possible to similarly bend the tip end of the spring support piece 12 to prevent the cable 3 from falling off.

Further, the grip support piece 11 can be provided on either the bent free end or the plate surface facing the free end, or both.

<Effects> Since the present invention is as explained above, the following effects can be obtained.

(a) The grip support piece can reliably prevent the end face of the end grip from getting caught when the cable is moved back, while maintaining the cable support function that functions when the spring support piece loses its cable support function.

Therefore, the cable material can be pulled smoothly and safely.

(b) The support surface of the grip support piece does not collide with the end grip due to the swinging of the operated member.

Therefore, no local bending force acts on the cable end, improving the durability of the cable material.

(c) Since the end grip does not catch on the grip support piece of the operated member, the traction resistance does not change suddenly when the cable material is pulled.

(d) With conventional latching structures, if the end grip and the grip support piece of the operated member suddenly come loose due to vibration or other reasons when the cable material is being towed, the operated member may inadvertently shift in the pulling direction. It will rotate in the opposite direction.

If this locking structure is used, for example, in a parking brake of a brake device, there is a risk that the brake force may suddenly loosen while the vehicle is parked, leading to a serious accident.

In the present invention, since the end grip does not get caught on the grip support piece of the operated member, the occurrence of such a phenomenon can be avoided.

[Brief explanation of the drawing]

Fig. 1: An explanatory diagram of the cable end latching structure according to the present invention, Fig. 2: An explanatory diagram of other embodiments,
Figure 3: Sectional view of - in Figure 2, 4th
Figure: Explanatory diagram of conventional technology.

Claims (1)

[Scope of Claims] 1. The free end of the operated member, which is pivotally supported so as to be swingable, is bent into a U-shape to form a groove, and a cable material provided with an end grip at the end is inserted into the U-shaped opening. Insert the end grip into the groove from the side, bring the end face of the end grip into contact with one side end face of the U-shape, and latch it.
In a cable end latching structure in which a spring member is encircled and contracted around a cable material located between the other side end face of the operated member and a stationary member, one side end face on the opening side of the operated member A spring support piece that restricts the movement of the spring member is provided protruding in the direction in which the cable material is pulled, and a grip support piece that restricts the movement of the end grip is provided on the other end surface of the open side of the operated member. The grip support piece is located at a position apart from the support position of the spring support piece in the axis support direction, and the grip support piece is located at a position apart from the support position of the spring support piece in the pivot direction, and when the operated member swings or when the cable material returns ahead of the operated member. A cable end latching structure characterized by being formed in a position that does not sometimes collide with the end grip.