JPS6117413Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connecting device for connecting a meter shaft and a cable.

Conventionally, the joint between an automobile speedometer and a cable has been made by forging the fitting part 1a at the tip of the cable inner 1 into a square cross-section, as shown in Figure 1, or by forming the joint into the same shape using synthetic resin. The part is integrally fixed to the tip of the cable inner 1, and the corner part is inserted into the fitting hole 2a, which has a square cross-section shape, by forging or cutting the shaft 2 of the speedometer into a square cross-section. Align the parts and insert and fit.

However, in the conventional system described above, the cable and meter fitting portion has a square cross section because it is necessary to transmit the rotation of the transmission to the meter via the cable. When assembling the cable, if the corners of both parts match up angularly, the fit is smooth. However, if the angles do not match, the fit is not possible and the cable must be reassembled. Furthermore, in the past, the connection between the cable and the meter was often done by a blind process that could not be judged visually, and the assembly had to be reassembled several times until the corners of both parts matched up, which resulted in a large variation in the number of man-hours required for assembly.

The present invention solves the above-mentioned drawbacks by assembling an intermediate coupling member to the speedometer shaft that allows the meter shaft to be rotated by cable insertion force or meter insertion force until the cable inner and meter shaft are aligned. The purpose is to make the connection between the cable and the meter extremely easy.

The present invention will be described below with reference to embodiments shown in the drawings. First, the structure will be explained with reference to the conventional example shown in FIG. As shown in Figure 1c,
A fitting portion 1a having a square cross section is formed. Reference numeral 2 designates the shaft of the speedometer that is connected to the flexible shaft 1, and the fitting hole 2 has a rectangular cross section as shown in Fig. 1b.
a is formed. Next, in Figure 2,
Reference numeral 3 denotes an intermediate connecting member according to the present invention, which is a resin component that is fixed to the fitting hole 2a of the shaft 2 by a method such as press-fitting or gluing, and rotates integrally with the shaft 2. 3a is a fitting hole into which the fitting 1a of the cable inner 1 of the intermediate coupling member 3 is fitted, and the coupling member 3 is inserted until the square cross-sections of the cable inner 1 coincide with each other by inserting the inner 1a.
has a rotating shape.

That is, since it is necessary to transmit the rotation of the vehicle's wheel side to the speedometer shaft 2 via the cable inner 1, the fitting hole 2a of the meter shaft 2 and the inner fitting part 1a have a square shape, so that they cannot be mutually connected. If the corners of the parts do not match, assembly will not be possible.
Therefore, it rotates as one with the meter shaft 2 between the meter shaft 2 and the cable inner 1.
In addition, the shape of the fitting part 1a of the cable inner 1 having a rectangular cross section is as shown in FIG. 2c.
At the fitting tip part, a square part 3c having a width across sides equal to or larger than the diagonal dimension of the fitting part 1a with a square cross section of the cable inner 1 is provided, and at the base part, the fitting part 1a with a square cross section is just inserted. As many square parts 3d as possible are provided, and the corner centers of the square part 3c at the tip and the square part 3d at the base are on the same line, each corner is shifted by 45 degrees from each other, and the square part at the tip Twisted slope shape 3 such that 3c converges to the square part 3d at the base
By providing the intermediate coupling member 3 having b,
The fitting hole 3 is opened by the insertion force of the shaft 2 or inner 1.
The coupling member 3 rotates together with the shaft 2 so that the fitting portion 1a converges along the twisted slope shape 3b converging on the square portion 3d at the root of the shaft 2, thereby facilitating connection.

As described above, in the present invention, in order to rotate the meter shaft by the insertion force of the cable inner or the meter shaft, the fitting part has a torsion slope shape that converges from the square part at the tip to the square part at the root part. Since the intermediate member is fixed to the meter shaft, the mating position between the cable inner and the meter shaft automatically matches when they are mated, regardless of the angular positional relationship between the cable inner and the meter shaft. This has the excellent effect of facilitating connection.

[Brief explanation of the drawing]

FIG. 1a is a partial longitudinal cross-sectional view showing a conventional connection between a meter and a cable, and FIG. 1b is a cross-sectional view of a meter shaft in the device shown in FIG. 1a.
FIG. 1c is a cross-sectional view of the fitting part of the cable inner in the device shown in FIG. 1a, FIG. Figure a: A plan view of the intermediate coupling member in the illustrated device;
FIG. 2c is a perspective view showing the shape of the fitting hole in the intermediate coupling member shown in FIG. 2b. 1...Flexible shaft as a cable inner, 1a...
...The fitting part, 2...Meter shaft, 2a...
Its fitting hole, 3... intermediate coupling member, 3a... its fitting hole.

Claims (1)

[Scope of utility model registration request] A meter and cable coupling device for inserting and coupling a fitting part of a cable having a rectangular cross section into a fitting hole of a meter shaft, comprising an intermediate coupling member fixed to the fitting hole of the meter shaft, the intermediate coupling member A fitting hole is formed in which the fitting portion of the cable fits, and the fitting hole of the intermediate coupling member has a width across two planes at the fitting tip portion that is equal to or larger than the diagonal dimension of the fitting portion of the cable. The base portion has a square portion large enough to allow the fitting portion of the cable to be inserted, and the square portion of the tip portion and the square portion of the root portion are aligned with each other by 45 mm with their centers on the same line. A connecting device for a meter and a cable, which are arranged at a different angle and have a twisted slope shape such that the square portion of the tip portion converges with the square portion of the root portion.