JPS634819Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a push-pull control cable in which the inner cable is slidably inserted into the outer casing to transmit operating force in both push and pull directions. Regarding a terminal device that connects an end of an inner cable to a driving member or a driven member, respectively, to a fixed member,
In particular, the present invention relates to a terminal device used when a rod connecting a driving member or a driven member and an end of an inner cable generates an axial movement as well as a swinging movement.

Conventionally, when the driving member or driven member connected to the end of the inner cable is a lever that produces rocking motion, and the distance from the cylindrical fitting fixed to the end of the outer casing to the lever is relatively short, The end of the inner cable is inserted into the blind hole drilled at the base end of the rod, which has a spherical head formed at the base end and is fitted into the cylindrical fixture so that it can freely slide and swing in the axial direction, and is caulked. At the same time, the tip of the rod protruding from the cylindrical fixture was connected to the lever, allowing the angle of the rod to change as the lever swung, by swiveling around its spherical head. A terminal device was used, but with such a structure, the connecting part of the inner cable to the rod bends as the rod swings, so repeated operation may cause it to break due to bending stress.
In particular, when the inner cable is made of stranded wires, the twist will untwist and the strength will drop significantly.Furthermore, the inner cable will rub strongly against the inner surface of the cylindrical fitting or outer casing, increasing sliding resistance and causing abnormalities. It had the disadvantages of producing noise and rapid wear of the sliding surface.

The present invention aims to eliminate such drawbacks and provide a terminal device that operates smoothly.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

A cylindrical fixture 4 is fitted to the end of an outer casing 2 through which an inner cable 1 made of a stranded wire is freely inserted and fixed by caulking. 8 and is fixed to the substrate 7 by a mounting plate 10 via a rubber cushion 9 fitted so as to surround a collar 5 protruding from the outer periphery. A hollow cylindrical sliding body 11 is fitted into the center hole 6 of the cylindrical fixture 4 to freely slide in the axial direction, and a metal fitting 12 is fitted onto the end of the inner cable 1 and fixed by caulking.
The flange 13 at the tip of is inserted into the rear surface of the sliding body 11,
It is fixed by bending the end edge inward, and a spherical head 14 formed at the base end of the rod 13 is inserted from the front of the sliding body 11 via a synthetic resin bush 12. The bush 12 and the spherical head 14 are held in place by bending the front edge inward in the same way as the rear end, and the rod 13 is attached to the sliding body 11 in any direction around the spherical head 14. A connecting portion 15 is formed at the tip of a rod 13 that is supported to freely swing and protrudes from the tip of the cylindrical fixture 4, and the tip of a lever 18 fixed to a shaft 17 is connected to the connecting portion by a shaft 16. 15, and the tip of the cylindrical fixture 4 and the rod 13
A bellows-shaped boot 19 covers the space between the protrusions.

On the drive side, as shown by the chain line in the figure, when the lever 18 swings back and forth together with the shaft 17, the inner cable 1 slides within the outer casing 2 via the rod 13 and the sliding body 11. Operation force in both push and pull directions is transmitted to the end, and vice versa.
On the driven side, the push/pull motion of the inner cable 1 is transmitted via the sliding body 11 and the rod 13 and converted into a swinging motion of the lever 18 in the back and forth direction. Therefore, the tip moves up and down and swings up and down at a small angle around the spherical head 14 at the base end, but it seems that the end of the inner cable 1 is directly fixed to the base end of the rod 13. No, cylindrical fitting 4
Since it is connected to a sliding body 11 that slides in the axial direction within the center hole 6 of the rod, the swinging of the rod 13 causes
No force is applied to bend the inner cable 1, which prevents it from bending, untwisting, breaking, or being rubbed strongly against the inner surface of the outer casing 2 and rapidly worn out. It is.

As specifically explained in the above embodiment,
The push-pull control cable terminal device of the present invention has an inner cable slidably inserted into the outer casing to transmit operating force in both push and pull directions. A cylindrical fitting is fixed, and the end of the inner cable is connected to a sliding body that is fitted into the center hole of the cylindrical fitting so as to be freely slidable in the axial direction, and the tip is connected to a driving member or a driven member. The main feature is that the base end of the rod is supported by the sliding body so that it can swing freely, and since no bending force is applied to the inner cable due to the swinging of the rod, there is no possibility of breakage of the inner cable or damage to the outer casing. Abrasion is prevented and the sliding resistance of the inner cable is reduced, resulting in excellent durability and high transmission efficiency.

[Brief explanation of the drawing]

The accompanying drawing is a sectional view of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Inner cable, 2... Outer casing, 4... Cylindrical fitting, 6... Center hole, 7... Board, 8... Mounting hole, 11... Sliding body, 13... Rod, 14... ...spherical head, 18... lever.

Claims (1)

[Scope of utility model registration request] A cylindrical fitting is fixed to the terminal of the outer casing of a push-pull control cable in which an inner cable is slidably inserted into the outer casing to transmit operating force in both push and pull directions. The end of the inner cable is connected to a sliding body that is fitted into the center hole of the rod so that it can freely slide in the axial direction, and the proximal end of a rod whose tip is connected to a driving member or a driven member can be freely swung to the sliding body. A terminal device for a push-pull control cable, characterized in that it is supported.