JPH0980062A - Joint for speed meter cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a joint for speed meter cable in which the speed meter cable is protected against damage due to interference with other parts, e.g. cross member or frame, caused by vibration or the like. SOLUTION: A joint unit 1 for linking a speed meter cable 6A on the driver side linearly or perpendicularly with a speed meter cable 10A on the speed meter side and fastening the outside thereof to other member is secured to a securing member 1A, e.g. frame or cross member. The speed meter cables 6A, 10A can be fixed easily while avoiding forced bending and protected against damage due to interference with cross member, frame or other parts caused by vibration or the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speedometer cable, and more particularly to a joint device effective in preventing interference with other parts and members.

[0002]

2. Description of the Related Art Conventionally, as a speedometer cable,
As shown in FIG. 11, it comprises an outer cable 41 and an inner cable 42 which is inserted into the outer cable 41 and is movable in the axial direction and rotatable in the circumferential direction. The key joint portion on one end side of the inner cable 42 There is one in which 43 is connected to a driving device, and the angular shaft portion 44 on the other end side is connected to a speedometer.

Further, as shown in FIG. 12, in order to regulate the relative movement amount of the outer cable 51 and the inner cable 52, a stopper ring 58 is provided in the key joint portion 53 to cover the outer periphery of the key joint portion 53. A technique has been proposed in which the protrusions 59 provided inside 56 are brought into contact with each other (see Japanese Utility Model Laid-Open No. 2-32059).
In addition, as shown in FIG. 5, the attachment method is such that the speedometer cable 61 passes along the inner side of the frame 1C and the web cutout portion 1B of the cross member 1C, and is fastened to the web of the frame 1C. It is fastened to the front and back of the cutout portion 1B in 1D. In this case, the joint device 62 is located at a position distant from the cross member 1A which may cause interference. As shown in FIG. 10, when the speedometer cable 71 is attached to the speedometer in the operator's cab, the speedometer cable 71 is bent and raised in accordance with the bending radius of the bent portion 71E and the upper portion of the frame 1C and the cross member 71A. Higher fasteners 73, 74 are used to avoid interference with. In this case, the joint device 72 is located at a position away from the bent portion 71E.

[0004]

In the conventional speedometer cable and its mounting method, a frame, a cross member, various kinds of brackets, etc. are avoided, and a small gap such as piping, wiring, and other wiring is provided. Therefore, there is no freedom in mounting the speedometer cable, there is a risk of interference with other parts, frames, cross members, etc., and in the worst case, there is a risk of cutting. In addition, the inner cable may rotate irregularly due to bending due to inadequate mounting, and the needle of the speedometer may shake. An object of the present invention is to provide a joint device for a speedometer cable, which does not interfere with and damage a frame, a cross member, etc. and has a large degree of freedom in mounting.

[0005]

For this reason, the invention according to claim 1 comprises an outer cable and an inner cable which is inserted in the outer cable and is movable in the axial direction and rotatable in the circumferential direction. A joint device provided at an intermediate portion of a speedometer cable in which one end of the inner cable is connected to a drive device and the other end is connected to a speedometer, and the outer peripheral portion is fastened to a fixing member in a tubular shape. And a joint shaft that is rotatably provided in the inner hole of the main body and that connects the inner cables to each other at the intermediate portion.

According to a second aspect of the present invention, there is provided an outer cable and an inner cable which is inserted into the outer cable and is movable in the axial direction and rotatable in the circumferential direction. One end of the inner cable is a driving device. A joint device provided in an intermediate part of a speedometer cable connected to a speedometer cable, the other end of which is connected to a speedometer,
An elbow-shaped cylindrical main body whose outer peripheral portion is fastened to a fixing member, and a pair of joint shafts rotatably held in an inner hole of the main body, which are linked to each other via a bevel gear so that rotation can be transmitted. , A pair of joint shafts that connect the inner cables to each other in the intermediate portion.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1, 2, and 3, the joint device 1 includes a drive device, for example, a speedometer cable 6A connected to a transmission (not shown) and a speedometer cable 10A connected to a speedometer (not shown) on the driven side. It can be attached to. The outside of the joint device 1 is attached to a fixing material, for example, the web of the cross member 1A.

The joint device 1 is composed of a main body 2, a joint shaft 3, a pair of bearings 4 for holding the joint shaft 3, and a main body mounting nut 5 for fastening the main body 2 to the cross member 1A. There is. Its body 2
Has a tubular shape and one end of the outer diameter is inserted into the cross member 1A and is fastened by the main body mounting nut 5 with the outer screw 2e. Further, the external thread 2e and the cap nut 13 are connected to the speedometer cable 10A. Further, an inner screw 2a is provided in the inner hole at the other end, and is connected to the speedometer cable 6A by a nut 9. Also, the inner holes 2b, 2c, and 2
d is provided to hold the joint shaft 3 via the bearing 4.

The joint shaft 3 is a three-diameter shaft having a thick center and thin ends, and the bearings 4 are formed at the inner ends of both the thin shafts.
Held by 4. A key joint portion 3a is provided at the outer end of one of the thin shafts and is connected to the drive side inner cable 7 of the speed meta cable 6A.
Further, an inner diameter key joint portion 3b formed by an inner hole is provided at the outer end portion of the other thin shaft, and the speedometer cable 10
It is connected to the driven inner cable 10 of A. The speedometer cable 6A has a drive-side outer cable 6 on the side connected to the joint device 1, and a drive-side inner cable 7 which is inserted into the drive-side outer cable 6 and is rotatable.
And a connecting cylinder 8 provided at the tip of the speedometer cable 6A, and a nut 9 that is provided outside the connecting cylinder 8 so as to be rotatable in the circumferential direction and that fastens the entire speedometer cable 6A to the joint device 1. It consists of and. The nut 9 is screwed onto the inner screw 2a of the main body 1, and the inner diameter key joint portion 7a provided at the end of the drive-side inner cable 7 and serving as a key joint is connected to the key joint portion 3a of the joint shaft 3. It has been concluded.

The speedometer cable 10A has a driven outer cable 11 on the side connected to the joint device 1,
A driven inner cable 10 which is inserted into the driven outer cable 11 and is rotatable, and a speedometer cable 1
The connecting cylinder 8 is provided at the tip of 0A, and the cap nut 13 is provided on the connecting cylinder 8 so as to be rotatable in the circumferential direction and fastens the entire speedometer cable 10A to the joint device 1. ing. The cap nut 13 is screwed onto the external screw 2e of the main body 1 and is provided at the end of the driven inner cable 10 and is provided with a driven side key joint portion 10a which plays a role of a key joint. It is fastened to the portion 3b.

Next, the operation will be described. An example in which the driving speed of a vehicle is transmitted from a drive device such as a transmission to a speedometer in the driver's seat will be described. A speedometer cable 6A connected to a rotation take-out shaft (not shown) of the transmission is externally protected by a drive-side outer cable 6, and rotation is transmitted by a drive-side inner cable 7.
An inner diameter key joint portion 7a at the tip of the drive-side inner cable 7 on the speedometer side transmits rotation to the joint shaft 3 through the key joint portion 3a.
The joint shaft 3 is supported by bearings 4 and 4, and rotation is transmitted from the inner diameter key joint portion 3b to the driven side key joint portion 10a by the driven side inner cable 10 to the speedometer in the driver's seat. And body 2
Due to the rigidity of, the drive-side inner cable 7 and the driven-side inner cable 10 are connected and held without bending.

Further, the main body 2 is fixed to the cross member 1A by the main body mounting nut 5, and the speedometers 6A, 1
It is suppressed that 0A does not shake due to engine vibration, vehicle vibration, or the like. Figure 4 shows the speedometer cable 6A, 1
0A and the joint device 1 are shown penetrating and attached to the cross member 1A of the vehicle body.

Next, an example in which the speedometer cable is bent will be described as another embodiment. In FIGS. 6, 7 and 8, the joint device 21 is arranged such that both cables are orthogonal to each other between the speedometer cable 28A connected to the transmission and the speedometer cable 31A connected to the speedometer. The outside of the joint device 21 is fixed with a fixing member, for example, a cross member 21
It is designed to be attached to the upper flange of A.

The joint device 21 includes a main body 22,
The drive shaft 23, the driven shaft 24 driven by the drive shaft 23 and engaged with the driven bevel gears 23a and 24a, and the driven shaft 2
Bearings 25a, 25b for holding 3, 24 respectively
And a body mounting nut 26 for fastening the body 22 to the cross member 21A. The body 22 is
It has an elbow-shaped tubular shape, and one end of the outer diameter is inserted into the cross member 21A, and is fastened by a body mounting nut 26 with an outer screw 22f. Further, the outer screw 22f and the cap nut 34 are connected to the speedometer cable 31A. An inner screw 22a is provided in the inner hole at the other end, and the nut 3 is attached to the speedometer cable 28A.
They are connected by 0. Further, the inner diameter portions 22b and 22d and the inner sinus portion 22c are the bearings 25a,
It is provided so as to drive the driven shafts 23 and 24 via 25b. In addition, the inner cavity portion 22c is a space in which the driven and driven bevel gears 23a and 24a are linked.

A center portion of the drive shaft 23 is held by the bearing 25a and a key joint portion 23b is provided at one outer end portion of the speed meta cable 28A.
Is connected to the drive-side inner cable 28. Also,
The drive bevel gear 23a is provided at the other outer end portion. Further, the driven shaft 24 has the bearing 25 at the center.
and the drive bevel gear 2 is held at one inner end by b.
4a is provided, and an inner diameter key joint portion 24b formed by an inner hole is provided at an outer end portion of the speedometer cable 31.
It is connected to the driven inner cable 31 of A.

The connection between the speedometer cable 28A and the joint device 21 is substantially the same as the connection between the speedometer cable 6A and the joint device 1.
The configurations of the drive-side outer cable 27, the drive-side inner cable 28, the connecting cylinder 29, the nut 30, the inner diameter key joint portion 28a, etc. are substantially the same as in the above example.

The connection between the speedometer cable 31A and the joint device 21 is substantially the same as the connection between the speedometer cable 10A and the joint device 1. Then, the driven outer cable 32, the connection cylinder 3
The configurations of 3, the cap nut 34, the driven inner cable 31, the driven key joint portion 31a, and the like are substantially the same as those in the above example.

Next, the operation will be described. Similar to the previous example, an example in which the driving speed of the vehicle is transmitted from the drive device, for example, the transmission to the speedometer in the driver's seat will be described. As in the previous example, the speedometer cable 28A connected to the rotary take-out shaft of the transmission has the inner diameter key joint part 28a at the speedometer side tip end of the inner cable 28 connected to the drive shaft 23 via the key joint part 23b. Transmit rotation.

The drive shaft 23 is supported by a bearing 25a, and is rotated by the drive bevel gear 23a or the driven bevel gear 24a.
Is transmitted to the driven shaft 24 via. And bearing 2
The driven shaft 24 supported by 5b rotates in a direction perpendicular to the drive shaft 23, and the driven shaft key joint 31a,
Rotation is transmitted from the lower part of the driver's cab to the speedometer in the driver's cab via the driven shaft inner cable 31.

Then, the driven and driven speedometer cables 28A and 31A together with the main body 22 cross member 21A.
It is fixed to and is prevented from shaking due to engine vibration, vehicle vibration, and the like. Further, the speedometer cable 31A can be attached to the speedometer substantially linearly without undue bending. Fig. 9 shows the speedometer cable 28
A, 31A and the joint device 21 are the body frame 1C.
The cross member 21A of FIG.

[0021]

As described above, according to the first and second aspects of the present invention, the joint device ensures that the speedometer cable on the drive device side and the speedometer cable on the speedometer side are straight or at right angles. Since the joint device is connected and the joint device is fixed to a fixing member such as a frame or a cross member, the fixing is fixed, and the speedometer cable does not shake and interfere with the surroundings due to engine vibration, vehicle vibration, etc. Therefore, it became possible to pass through a small gap such as piping and wiring. In addition, the speedometer needle does not shake due to vibration of the speedometer cable or excessive bending.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention.

2 is a side view of the outer shape of FIG.

FIG. 3 is an external perspective view showing the joint device body of FIGS.

FIG. 4 is a perspective view showing a state where FIG. 1 is attached to a frame.

FIG. 5 is a cross-sectional view showing one form of attachment of a conventional speedometer cable.

FIG. 6 is a side sectional view showing another embodiment of the present invention.

7 is a side view of the outer shape of FIG.

FIG. 8 is an external perspective view showing the joint device body of FIGS.

FIG. 9 is a side view showing a state in which FIG. 6 is attached to a cross member.

FIG. 10 is a cross-sectional view showing one form of attachment of a conventional speedometer cable.

FIG. 11 is a side sectional view showing a conventional speedometer cable.

FIG. 12 is a side sectional view showing a conventional speedometer cable.

[Explanation of symbols]

 1A, 21A Fixing material 1, 21 Joint device 2, 22 Main body 3 Joint shaft 6A, 10A Speedometer cable 6,27 Drive side outer cable 7,28 Drive side inner cable 9,30 Nut 10,31 Driven side inner cable 11, 32 driven outer cable 23a driving bevel gear 24a driven bevel gear 28A, 31A speedometer cable

Claims (2)

[Claims] 1. An outer cable, and an inner cable which is inserted into the outer cable and is movable in the axial direction and rotatable in the circumferential direction. One end portion of the inner cable is connected to a drive unit and the other end. In a speedometer cable whose part is connected to a speedometer, the joint device is provided in an intermediate part, and the outer peripheral part is rotatably provided in a cylindrical main body fastened to a fixing material and an inner hole of the main body. And a joint shaft for connecting the inner cables to each other in the intermediate portion, and a joint device for a speedometer cable. 2. An outer cable, and an inner cable which is inserted into the outer cable and is movable in the axial direction and rotatable in the circumferential direction. One end of the inner cable is connected to a drive unit, and the other end is connected. A part of a speedometer cable connected to a speedometer, which is a joint device provided in an intermediate part, wherein an outer peripheral part is an elbow-shaped tubular main body fastened to a fixing member, and is rotatable in an inner hole of the main body. A pair of held joint shafts, which are rotatably linked to each other via bevel gears, and in the intermediate portion,
A pair of joint shafts that connect inner cables to each other,
A joint device for a speedometer cable, which is characterized by including the following.