JPS6020823Y2 - Control cable locking bracket - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a locking fitting for locking the end of a flexible conduit of a control cable to a mounting panel or the like.

More specifically, the present invention relates to a locking fitting that can easily lock a control cable by press-fitting the tip of the locking fitting fixed to the conduit end of the control cable into a hole provided in a panel or the like.

A control cable (hereinafter simply referred to as a cable) consists of a flexible conduit and a flexible inner cable inserted into the conduit, and is used to remotely control a driven device at the other end by operating one end of the inner cable. In this device, the conduit is a flexible tube made of at least one metal wire wound spirally, and the outer circumferential surface of the tube is coated with synthetic resin, etc., and the inner cable is generally made of at least several metal wires twisted together. I am admonishing you from what you put together.

One end of the inner cable is operated to operate a driven device connected to the other end, but since the cable is normally routed in a curved manner, if a pushing force is applied to the inner cable in the axial direction, the inner cable will acts to further increase the curvature of the conduit by pressing against the curved outer surface of the conduit, so a force is exerted on the conduit to separate it from the locking fitting, and a pulling load is applied to the inner cable. In this case, conversely to the above, a force acts on the conduit to press the locking metal fitting, and when this pushing force or pulling force is released, a return force opposite to this force acts on the locking metal fitting.

There have been various types of locking metal fittings in the past, and in order to press fit into a hole provided in a panel, etc. and lock it by movement, a part of the metal is cut out, a part of it is cut out, and a lid part etc. Most of them had a bottom shape.

For this type of conventional locking metal fitting, Fig. 3-1, Fig. 3-
As shown in FIGS. 2 and 4, the tip 41a of the conduit 41 is in direct contact with the lid 32, so when pulling the inner cable,
Each time, a strong pushing force in the D' direction is repeatedly applied to the lid part 32, so that it finally breaks due to strain, and the tip part 41a of the conduit 41 protrudes outside of the locking fitting A', causing the cable to break. There was a high risk of operation becoming impossible and causing a major accident.In addition, especially in the case of elastic materials, surface treatments such as plating can cause hydrogen to remain in the tissue, impairing hydrogen readability. There was also a risk that it would break in an extremely short period of time.

Furthermore, with conventional locking fittings, it is extremely difficult to tighten the conduit 41 with materials that have warmth;
As shown in FIG. 4, an elastic member 37 is attached to the cap member 31.
The cap member 3 is integrated by charging and binding the cap member 3.
The locking fitting A' was fixed to the conduit 41 by caulking the cap member 31 and the elastic member 37 to the conduit 41. However, the connection between the cap member 31 and the elastic member 37 was not perfect, and repeated pushing force for a long period of time finally caused There was also a risk that the binding part would separate.

Furthermore, since the structure is mainly made of elastic materials, there are restrictions on the shape, and in addition, it is necessary to prevent rainwater seat valves and the like from entering through the gap 38 between the elastic member 37 and the cap member 31. Treatment for this was extremely difficult.

The main object of the present invention is to provide a locking fitting that eliminates the various drawbacks mentioned above.

Other advantages of the present invention will become clear from the following explanation.

One embodiment of the present invention will be described with reference to the drawings.
1-2, 2-1, and 2-2, A is a locking fitting, 1 is a cylindrical cap member, and 2 is a cap member with one end radially inward. The inner cable insertion hole 4 is provided by cutting or squeezing the entire circumference in the same direction.
3 is a flange projecting outward in the radial direction from the central portion of the cap member 1; 5 is a region of the outer circumferential surface 1b between the flange 3 and the lid 2; At least one elongated rectangular window with the long side in the axial direction is bored at an appropriate position, and the other end of the cap member 1 is formed as a conduit insertion hole 6.

Further, an inner cylinder 7 having a suitable length and having strong elasticity is tightly fitted into the inner circumferential surface 1a of the cap member 1, and the inner cylinder tip 7a at one end of the inner cylinder is in close contact with the lid part 2. The other end is made to be in close contact with the conduit tip 11a of the conduit 11,
Further, a locking pawl 8 provided on the outer circumferential surface 7b of the inner cylinder 7 at the same position as the window 5 is formed by a notch so that only the base of one end on the side of the lid 2 is connected, and the other end is connected to the base of the lid 2. It is formed to protrude outward from the outer circumferential surface 1b of the cap member in the radial outward diagonal direction from the window portion 5.

Moreover, as shown in FIG. 2-1, a first sealing material 9 and a second sealing material 10 are provided as waterproofing treatment for the cable, if necessary.

To explain the function and effect of the locking metal fitting of the present invention, when the tip of the locking metal fitting A is press-fitted into a hole provided in a panel etc., the locking claw 8 having elasticity is pressed radially inward. When the locking pawl 8 passes through the panel, the tip of the locking pawl returns to its original position due to elasticity, so that the panel is sandwiched between the flange 3 and the locking pawl.When the cable is operated, the locking occurs. The pressure applied to the metal fitting A is received by the flange 3, and the pressure of the conduit is partially applied to the lid portion where the conduit tip 11a is in contact with the inner tube tip 7a with the inner tube 7 interposed therebetween. A reaction force is also applied to the lid portion 2 from the inner cylinder tip 7a via the locking claw 8.

As mentioned above, in the locking fitting A fixed to the tip of the cable conduit 11, a pulling and pushing load is applied to the cap member due to repeated pushing or pulling operations of the inner cable over a long period of time. In other words, the cap member 1 does not have a connecting part like a conventional locking fitting and is made integral with the conduit 11, so that the conduit 11 and the cap will not be damaged by the pulling load (load in the C direction) on the conduit 11. There is no risk of separation due to the caulking of the member 1, and the distal end 1 of the conduit 11 can withstand the pushing load (load in the D direction) on the conduit 11.
1a pushes the inner cylinder 7 in the direction D, and the tip 7a of the inner cylinder presses the lid 2 in the D direction.However, since the lid 2 receives the inner cylinder tip 7a on its entire circumference, the conventional Unlike those formed by bending a portion of an elastic member, the lid part 2 is extremely strong and will not be damaged even by repeated pressing in the D direction.

Furthermore, the locking fitting according to the present invention can be used as long as the inner cylinder 7 is a cap member having a structure that allows the inner circumferential surface 1a to be tightly fitted into the inner circumferential surface 1a like the cap member 1, no matter how complicated the external shape may be. Further, there are advantages in that the design can be made with almost no restrictions on materials and manufacturing methods, and at the same time, since the cap member is integrated, waterproof and dustproof measures can be carried out extremely easily.

Furthermore, even if there is a demand for a panel to which the locking metal fitting A is fixed with a different thickness, there is no need to redesign the entire locking metal fitting, and the length of the locking pawl 8 on the inner cylinder 7 can be changed. Either design and fit a different one, or insert the inner cylinder tip 7a.
This is an effective device that also has excellent economic efficiency, as it can be handled by inserting a ring collar of an appropriate thickness between the lid portion 2 and the lid portion 2.

[Brief explanation of the drawing]

Fig. 1-1 is a partially cutaway side view of a main part of an embodiment of the locking fitting of the present invention, Fig. 1-2 is a front view of Fig. 1-1, and Fig. 2-2 is a front view of Fig. 1-1.
Fig. 1 is a partially cutaway side view of the main part of another embodiment of the present invention, Fig. 2-2 is a front view of Fig. 2-1, and Fig. 3-1 is a main part of the conventional locking fitting. Partially cutaway side view, Figure 3-2 is Figure 3-1
FIG. 4 is a front view of the figure, and FIG. 4 is a perspective view of FIG. 3-1. A: Locking metal fitting, 1: Cap member, 1a: Inner peripheral surface, 1b
=Outer peripheral surface (of the cap member) 2: Lid portion, 3: Flange portion, 4:
Inner cable insertion hole, 5: Window, 6: Conduit insertion hole, 7: Inner cylinder, 7
b = outer peripheral surface (of the inner cylinder), 8: locking pawl.

Claims (1)

[Scope of utility model registration request] In a locking fitting for a control cable conduit, one end of a cylindrical cap member is suitably narrowed radially inward and has a lid portion with an inner cable insertion hole, and the other end is a cap member through which the conduit is inserted. A hole is formed in the longitudinal direction, and the flange is stepped in the radially outward direction at the center, and the axial direction is formed at an appropriate position on an area of the outer circumferential surface between the flange and the lid. an inner cylinder of a suitable length with strong elasticity, which is closely inserted into the inner circumferential surface of the cap member, and an outer circumferential surface of the inner cylinder; is formed by a notch in the same position and in the same number as the window, so that only the base of one end is connected, and the other end protrudes outward from the outer circumferential surface of the cap member in a diagonal direction radially outward from the window. A locking metal fitting for a control cable, characterized in that it consists of a locking claw that protrudes in a similar manner.