JPS641529Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a remote control cable installed in automobiles, agricultural machinery, ships, etc. for remote control purposes.

[Conventional example]

In recent years, remotely controlled devices and equipment have become more complex and used in a variety of ways. Furthermore, it is often the case that the operating section is left as it is, and other operated sections with different functions are replaced and assembled, so that a single operating section can perform a plurality of functions.

For this reason, a single control cable is constructed by removably connecting a remote control cable connected to the operating part and a remote control cable linked to the operated part using an intermediate connector.

This type of connected remote control cable is shown in Figure 10 (Utility Model Publication No. 5323, 1973).

At the tip of each inner cable 11, 21 of the first and second two remote control cables 1, 2, a male threaded tube 30 is protruded from one side and a female threaded tube 40 is protruded from the other. 40 are screwed together and connected. A sleeve 70 is placed over the connecting portion with ample room, an L-shaped slot 74 is formed at one end of the sleeve 74 and opened to the end surface of the sleeve, and a through locking hole is formed at the other end of the sleeve 70. 75 will be established.

A cylindrical body 24 having a spring piece 23 protruding from its outer periphery is fitted and fixed to the tip of the outer casing 22 of the second remote control cable 2, and the cylindrical body 24 is inserted into the sleeve 70 while pressing the spring piece 23. By the elastic return of 23, the spring piece 23 is fitted into the locking hole 75 of the sleeve 70.

A cylindrical body 14 having protrusions 13 protruding from its outer periphery is fitted and fixed to the tip of the outer casing 12 of the first remote control cable 1, and the cylindrical body 14 is inserted into the sleeve 70, and at the same time the protrusions 13 are inserted into the slots 70. and turn the outer casing 12 to engage the protrusion 13 deep into the slot 74.

In this way, the two remote control cables 1 and 2 are connected into one, but in the remote control cable, the protrusion 13 of the outer casing 12 is simply fitted into the L-shaped groove 81 of the sleeve 70. In addition, since the outer casing 12 is not specially prevented from rotating, there is a risk that the outer casing 12 will rotate and the protrusion 13 will naturally come off from the L-shaped slot 74. The cylindrical body 24 on the second side only has the spring piece 23 on its outer periphery fitted into the locking hole 75 of the sleeve 70 by a spring action, and the cylindrical body 24
If a force is applied to pull out 4 in the axial direction, it will easily come off from the sleeve 70, resulting in low reliability in connection and retention.

〔the purpose〕

The object of the present invention is to provide a remote control cable that can be easily connected and divided, and that can reliably maintain the connected state.

〔composition〕

Inner cable 11 of both remote control cables 1 and 2,
Connecting pieces 3, 4 are provided at the inner ends of the outer casings 12, 21, and connecting bodies 5, 6 having hollow portions 55, 65 with openings at the ends into which the connecting pieces are slidably fitted are protruded from the inner ends of the outer casings 12, 22. A continuous notch 53 with an enlarged depth is opened perpendicularly to the axis and extends through the end face of the connecting piece and the connecting body of the other cable, with the inner end surfaces of the other cable being aligned. A protrusion 63 whose distal end side is enlarged in correspondence with the notch 53 of the mating connecting piece and the connecting body is protrudingly provided on the body, and both connecting bodies 5 and 6 have a through guide length extending in the axial direction and opening at the distal end surface. Holes 54 and 64 are opened, and both connecting pieces 3 and 4 are opened.
protrusions 32, 42 that are slidably fitted into the guide elongated holes 54, 64 are protrudingly provided, and both connectors have protrusions on the abutment surface and inner surface that the protrusions abut against and prevent the protrusions from retreating in the axial direction. Rings 7, 7 formed with escape grooves 72 that allow the axial retreat of the rings 32, 42 are slidably and rotatably fitted in the axial direction. , 7 are screwed together to push them toward each other.

[Action and effect]

Insert the protrusion 63 of the other remote control cable into the notch 53 of one remote control cable from the side to connect both remote control cables, and in this state tighten the push tubes 8, 8 and ring 7, are moved closer to each other and placed over the connection between the notch 53 and the protrusion 63. This reliably prevents the connecting portion from coming off.

The connecting pieces 3 and 4 at the tip of the inner cable are engaged by fitting a notch 53 enlarged at the back and a protrusion 63 enlarged at the tip, and both the connecting pieces 3 and 4 slide on the connecting bodies 5 and 6. Because they fit together easily, when one inner cable is pulled or pushed, both connecting pieces 3 and 4
moves within the connecting bodies 5 and 6 as they are connected, and the movement is transmitted to the other inner cable.

Since the protrusions 32, 42 of the connecting pieces 3, 4 protruding from the guide elongated holes 54, 64 of the connecting bodies 5, 6 pass through the relief grooves 72 on the inner surface of the ring 7, the connecting pieces 3, 4 and the inner cables 11, 21 There is no problem with movement.

To separate both cables 1 and 2, the push tubes 8 and 8 are loosened, the rings 7 and 7 are moved back, and the connecting pieces 3 and 4 are separated.
By moving the protrusions 32 and 42, the abutting end surfaces of the respective connecting bodies 5 and 6 and the abutting end surfaces of the connecting pieces 3 and 4 are aligned, and while supporting both the connecting bodies 5 and 6 with both hands, shift them to the side, and the notch 53 The protrusion 63 is disengaged, and both cables can be easily separated.

When aligning the ends of the connecting pieces 3, 4 and the connecting bodies 5, 6, the elongated guide holes 54, 64 of the connecting bodies 5, 6
The work can be carried out while visually observing the abutting end surfaces of the connecting pieces 3 and 4, resulting in good work efficiency.

Both inner cables 11 and 21 are often used by being urged outward by springs 91 and 91 connected to the operating member 9 and the operated member 90, as shown in FIG.

In this case, when connecting the two cables 1, 2, each connecting piece 3, 4 is pulled into the inner end of the connecting body 5, 6 by the spring force, so that when the two cables 1, 2 are connected, the protrusions 32, 42 Move the connecting pieces 3, 4 to the connecting body 5,
It is difficult to move it to the opening side of No. 6.

In the present invention, the pusher tube 8 is loosened and the ring 7 is inserted into the protrusion 4.
2, and at that position ring 7.
By turning the abutment surface 71 to bring the contact surface 71 into contact with the protrusions 32, 42, and tightening the pusher tube 8 in this state, the ring 7 is moved between the protrusions 32, 42 and the connecting piece 3, due to the screw thrust.
4 can be moved forward against the spring force.

This allows the tips of the connecting pieces 3 and 4 to be connected to the connecting body 5,
6, and the notch 53 formed at the tip on the first cable 1 side can be engaged with the protrusion 63 formed at the tip on the second cable 2 side.

After fitting the notch 53 and the protrusion 63, the push tube 8
Loosen the ring a little, rotate the ring 7, and remove the relief groove 7.
2 to correspond to the protrusions 32, 42, and then tighten the press tube 8 again to cover the connecting part between the notch 53 and the protrusion 63 with the ring 7 as described above.

As mentioned above, even if the inner cable is biased by the spring, the connecting pieces 3 and 4 can be easily advanced by the screw thrust of the push tube 8, and the tips of the connecting pieces 3 and 4 can be moved forward by the connecting body 5. , 6 guide slots 54,
The cables can be quickly connected and separated while visually observing from the cable 64.

The present invention will be specifically described below based on embodiments shown in the drawings.

Configuration of the embodiment Figure 9 shows the first remote control cable (hereinafter referred to as the first cable) and the second remote control cable.
The remote control cable (hereinafter referred to as the second cable) is shown connected by an intermediate connector A.

Each outer casing 1 of the first and second cables 1 and 2
The tips of 2 and 22 are the casing caps 15 and 15.
is attached to the mounting walls 92, 92 by the second
The inner cable 21 of the cable 2 is connected to the operating part 9, and the inner cable 11 of the first cable 1 is connected to the operated part 90.

Both the operating section 9 and the operated section 90 are connected to a spring 91, and each inner cable 11, 21 is biased outward.

At the base ends of the first and second cables 1 and 2, inner cables 11 and 21 and outer casings 12,
22 are connected to each other by a connector A.

Connector A connects both inner cables 1 as shown in Figure 1.
A pair of connecting pieces 3 and 4 that connect the outer casings 12 and 21, a pair of connecting bodies 5 and 6 that connect the outer casings 12 and 22, a ring 7 that maintains the engaged state of the connecting bodies,
7. Composed of push tubes 8, 8 that restrict the movement of the ring.

Both connecting pieces 3 and 4 connect inner cables 11 and 21 at the center of their proximal ends, and as shown in Fig. 3, the connecting piece 3 on the first cable side has a T-shaped cross section with an enlarged depth on the distal end surface. A fitting groove 31 is formed through the connecting piece 3 on the diameter line thereof.

On the distal end surface of the connecting piece 4 on the second cable side, there is a fitting protrusion 41 with a T-shaped cross section whose tip part is enlarged in the diametrical direction, corresponding to the fitting groove 31 of the connecting piece 3 on the first cable side. It is installed protrudingly.

Projections 32, 42 are provided on the outer circumferential surfaces of both connecting pieces 3, 4 so as to be slidably fitted into guide elongated holes 54, 64 of connecting bodies 5, 6, which will be described later.

Both connecting bodies 5 and 6 are formed into a cylindrical shape, into which the inner cables 11 and 21 are slidably fitted, and the outer casings 12 and 22 are fitted and fixed at the proximal ends.
Hollow portions 55 and 65 with openings are provided at the tip portions, and the connecting pieces 3 and 4 are slidably fitted into the hollow portions.

The base end side of both connecting bodies 5 and 6 is a right-handed male screw shaft 5.
It is 0.60.

The connecting piece 3 is attached to the distal end surface of the connecting body 5 on the first cable 1 side.
Notches 51, 51 with enlarged depths communicating with both ends of the fitting groove 31 are formed, and when the phases of the fitting groove 31 and the notches 51, 51 match as shown in FIG. A penetrating notch 53 is formed in which the opening is enlarged.

The first rope 1 is attached to the tip of the connecting body 6 on the second rope 2 side.
Protrusions 61, 61 with enlarged tips that fit into the notches 51, 51 at the tips of the side connectors 5 are provided protrudingly opposite to each other on the diametrical line, and as shown in FIG. , 61 and the protrusion 41 of the connecting piece 4 slidably fitted into the connecting body 6, a protrusion with an enlarged tip whose cross-sectional shape in the width direction is T-shaped at any position is formed. A portion 63 is formed, and the protrusion 63 can be engaged with the notch 53 shown in FIG. 8 from a direction perpendicular to the axis.

Hollow portions 55, 65 on the tip side of both the connecting bodies 5, 6
As shown above, there are notches 51, 51 and fitting grooves 3.
1. The protrusions 32, 42 on the outer periphery of the connecting pieces 3, 4 can be slid with the protrusions 61, 61 and the protrusions 41 in phase, and the upper ends of the protrusions are on the outer periphery of the connecting bodies 5, 6. Extruding guide slots 54, 64 are opened in the axial direction, and guide slots 54, 64 and projections 32, 42
This engagement prevents relative rotation between the connecting bodies and the connecting pieces when the connecting pieces 3, 5 slide in the axial direction within the connecting bodies 5, 6.

As shown in FIGS. 3, 6, and 8, both connecting bodies 5, 6 have stop pieces 56, 66 on the right side of the guide elongated holes 54, 64 when looking at the hollow portions 55, 65 from the front.
Guide pieces 57 and 67 are provided on the left side to protrude in parallel to the axial direction.

The stop pieces 56, 66 extend from the opening end edges of the connecting bodies 5, 6 toward the proximal end, and the axial length _l1 thereof corresponds to the axial length _l2 of the protrusions 32, 42 of the connecting pieces 3, 4. The rear edges 32a, 42 of the protrusions 32, 42
a and the rear edges 56a, 66 of the stop pieces 56, 66
When the axial positions of a match, the connecting bodies 5 and 6
The front ends of the connecting pieces 3 and 4 are aligned, and the notch 53 and the protrusion 63 are formed.

The guide pieces 57, 67 extend from the front end edges of the male threaded shafts 50, 60 of the connectors 5, 6 toward the open ends of the connectors 5, 6, and the front edges of the guide pieces are aligned with the stop pieces in the axial direction. It is located slightly forward of the posterior edge of the.

A short cylindrical ring 7 is provided on the front end side of both the connecting bodies 5 and 6.
7 is fitted to be rotatably and slidably in the axial direction.

The front end surface of the ring 7 includes the protrusions 32, 42 of the connecting pieces 3, 4 that protrude from the guide elongated holes 54, 64 of the connecting bodies 5, 6 onto the circumferential surface of the connecting bodies, and the connecting bodies 5,
Contact surface 71 for stop pieces 56, 66 on 6
It is becoming.

An escape groove 72 is formed on the inner surface of each ring 7 over the entire length in the axial direction and has the necessary minimum width, into which the projections 32, 42, stop pieces 56, 66, and guide pieces 57, 67 can enter at once. The length of the ring 7 is slightly longer than the axial length l ₁ of the projections 32, 42 of the connecting pieces 3, 4.

Furthermore, on the base end side of each ring 7, there is a push tube 8, which will be described later.
A circumferential groove 73 is provided in which the claw piece 81 engages.

A push cylinder 8 made of synthetic resin for moving the ring 7 in the axial direction is screwed onto the threaded shafts 50 and 60 of each of the connecting bodies 5 and 6.

Each push cylinder 8 has a plurality of claw pieces 81, 81 protruding from the tip surface at equal intervals, and an outward engaging piece 82 at the tip of each claw piece.
is slidably fitted into the circumferential groove 73 of the ring 7.

To engage the claw pieces 81, 81 with the ring 7, the claw pieces 81, 81 are forcibly bent inward and the ring 7 is pushed.

When the engagement piece 81 at the tip of the claw piece corresponds to the circumferential groove 73 of the ring 7, the engagement piece 82 fits into the circumferential groove 73 due to the elastic return of the claw piece 81.

The inner diameter of the ring side of the push tube 8 is formed to a large diameter, and the connecting bodies 5, 6 are arranged between the connecting bodies 5, 6 as shown in FIG.
stop pieces 56, 66 protruding from the surface of 6;
An annular space 83 is formed through which the guide pieces 57, 67 and the protrusions 32, 42 can pass with plenty of room.

Connection of Cables When the cables 1 and 2 are disconnected, the inner cables 11 and 21 are pulled outward by the springs 91 and 91, and the connecting pieces 3 and 4 connected to the inner cables are connected to the connecting body. Hollow parts 55, 65 of 5, 6
The end surfaces of the connecting bodies 5, 6 and the connecting pieces 3, 4 are not aligned, and the connecting bodies 5, 6 and the connecting pieces 3, 4 cannot be fitted together at the same time.

Therefore, both the push tubes 8 are loosened, the rings 7, 7 are moved backward, and each ring 7 is turned counterclockwise as shown in FIGS. 6 on the guide pieces 57, 67.

While in the above state, the push tube 8 is rotated in the tightening direction to move the ring 7 forward. At this time, the protrusions 32, 42 of the connecting pieces 3, 4 come into contact with the front end abutting surface 71 of the ring 7, and the protrusions 32, 42 and therefore the connecting pieces 3, 4 slide within the connecting bodies 5, 6 and advance toward the opening side. do.

When the pusher cylinder 8 is further rotated, the abutment surface 71 of the ring 7 hits the rear ends 56a, 66a of the stop pieces 56, 66 on the connecting pieces 3, 4, thereby preventing the ring 7 from moving forward.

When the above state is reached, as described above, the end surfaces of the connecting bodies 5, 6 and the connecting pieces 3, 4 are aligned, and the protrusion 63 shown in FIG. 6 is on the first cable 1 side, and the protrusion 63 shown in FIG. A notch 53 as shown is formed.

The notch 53 and the protrusion 63 are fitted from a direction perpendicular to the axis, and the axes of both the connecting pieces 3 and 4 and the connecting bodies 5 and 6 are aligned.

Next, loosen the pusher cylinder 8 a little and turn the ring 7 so that the relief groove 72 of the ring 7 is aligned with the stop piece 56 as shown by the solid line in FIG. 7, and as shown by the two-dot chain line in FIG.
66, the guide pieces 57, 67 and the protrusions 32, 42 are positioned at a position that allows passage thereof.

Tighten the push tube 8 again and move the rings 7, 7 forward. Both rings 7 are the stop pieces 5 of the mating connection body.
The forward movement of the rings 7, 7 is prevented by contacting the front end edges 56b, 66b of the rings 6, 66, and the front end contact surfaces 7 of both the rings 7, 7
1 and 7 are butted against each other to straddle and cover the connecting portion between the notch 53 and the protrusion 63, thereby effectively preventing the connecting portion from disengaging.

Both the connecting pieces 3 and 4 are connected to each other in the side connecting body 5,
6, inner cable 21 on the operation side can be slid inside.
The movement is transmitted to the other inner cable 11.

The protrusions 32, 42 of the connecting pieces 3, 4 that pass through the guide holes 54, 64 of the connecting bodies 5, 6 and protrude onto the surfaces of the connecting bodies 5, 6 are connected to the escape groove 72 of the ring 7 and the push tube 8. Since the connecting pieces 3 and 4 move in the annular space 83 between the bodies 5 and 6, there is no problem with the movement of the connecting pieces 3 and 4 in the axial direction.

Splitting the cable: Loosen the pushers 8, 8 and move the rings 7, 7 back to expose the connecting part.

If the end surfaces of the connecting bodies 5, 6 and the connecting pieces 3, 4 are aligned, the engagement can be removed by supporting the connecting bodies 5, 6 with both hands and shifting them in a direction perpendicular to the axis.

If the connecting pieces 3, 4 are positioned offset to one of the connecting bodies and the front ends of the connecting bodies 5, 6 and the connecting pieces 3, 4 are not aligned, the cable will not be disengaged.

In this case, the push tubes 8, 8 are further loosened to move the rings 7, 7 backward, and then the rings 7, 7 are turned so that the front end abutting surfaces 71 of the rings are aligned with the stop pieces 56, 66 on the connecting bodies 5, 6, respectively. 32, 42, and tighten the push tube 8 again to advance the ring 7, and similarly to the above, the ring 7 advances the protrusions 32, 42 and hence the connecting pieces 3, 4. If the push tube 8 is advanced until the ring 7 hits the stop pieces 56, 66, the front ends of the connecting pieces 3, 4 and the connecting bodies 5, 6 will match as described above, and when the connecting parts are shifted in the direction perpendicular to the axis, they will engage. comes off and both cables 1 and 2 can be separated.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of the connecting tool in a connected state, Fig. 2 is a perspective view of the same as above in the process of connection, Fig. 3 is an oblique view of the connecting body and connecting piece, and Fig. 4 is a ring and pusher. FIG. 5 is a front view of the ring; FIG. 6 is a front view of the connecting piece on the first rope side, the connecting body, and the ring;
Figure 7 is a front view of the same ring as above in a rotated state, Figure 8 is a front view of the connecting piece on the second rope side, the connecting body, and the ring, Figure 9 is an explanatory diagram showing the state of use,
Figure 0 is a perspective view of a conventional example. 3, 4... Connecting piece, 5, 6... Connecting body, 53...
...Notch, 63...Protrusion, 54, 64...Guide slot, 32, 42...Protrusion, 7...Ring, 72
...Escape groove.

Claims (1)

[Scope of utility model registration request] Two remote control cables 1 and 2 formed by slidably passing an inner cable through an outer casing are separably connected by a connector, and both remote control cables are connected separately by a connector. The connecting pieces 3, 4 are fitted to the inner ends of the inner cables 11, 21 of the cables 1, 2, and the hollow parts 55, 65 have openings at the ends in which the connecting pieces are slidably fitted to the inner ends of the outer casings 12, 22.
Connecting bodies 5 and 6 are provided in a protruding manner, and the connecting piece of one cable and the end face of the connecting body each have a notch 53 with an enlarged depth that is continuous with the inner end surfaces of each cable being aligned on the same plane. The connecting piece of the other cable and the connecting body are provided with projecting portions 63 whose distal ends are enlarged in correspondence with the notches 53 of the mating connecting piece and the connecting body. The bodies 5 and 6 have a through-guide elongated hole 54 extending in the axial direction and opening at the distal end surface.
64 is opened, and both connecting pieces 3, 4 have protrusions 32, 42 that are slidably fitted into the guide elongated holes 54, 64.
A contact surface 71 is formed on both connecting bodies to prevent the protrusions 32, 42 from retreating in the axial direction, and a relief groove 72 is formed on the inner surface to allow the protrusions 32, 42 to retreat in the axial direction. The rings 7, 7 are fitted so as to be slidable and rotatable in the axial direction, and the two connecting bodies 5, 6
The splittable remote control cable is screwed with push tubes 8, 8 that push the rings 7, 7 toward each other by screw thrust.