JPH08247162A - Shaft coupling - Google Patents

Abstract

PURPOSE: To eliminate an attaching cylinder as well as to eliminate attaching work by integrating a connecting fitting with a disc body without using any bolt and any nut. CONSTITUTION: At least a disc body 3 is formed of synthetic resin materials, cylindrical parts 6 of a connecting fitting 4 are set in a formed die in forming of the disc body 3, and the cylindrical parts 6 are inserted into the disc body 3 so as to be integrated with it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaft coupling used for a propulsion shaft or the like for connecting one shaft and the other shaft to transmit a rotational force, for example, transmitting a driving force of an engine. This is a shaft joint that can be used to connect the propeller shaft and the steering shaft that transmits the rotational force of the steering wheel.

[0002]

2. Description of the Related Art A conventional shaft coupling of this type is shown in FIGS.
As shown in FIG. 7, a plurality of metal mounting cylinders 101 connected to the drive-side shaft via the connecting metal fittings 100 are arranged concentrically on the concentric circles at equal distances and connected to the driven-side shaft. Cylindrical bodies 102 are concentrically arranged at equal distances and are alternately arranged with the cylindrical bodies 101, and the cylindrical bodies 101 are arranged in the rubber-like elastic body 1.
It is surrounded by 03, and the rubber-like elastic body 103 and the cylindrical body 101 are connected by a disc body 104 made of a synthetic resin material. The connecting fitting 100 is attached to the disc body 104 by inserting a bolt 105 into the cylindrical body 101 and fastening a nut 106.
The driven-side shaft is connected to the connecting member 107, and two bolts 108 provided on the connecting member 107 are inserted into the tubular body 102 and fastened with a nut 109.

[0003]

In the conventional shaft coupling, the connecting fitting 100 is mounted on the disk body 104 by the bolt 10
5. Since it is performed with the nut 106, the work is troublesome. Further, it was necessary to embed the mounting cylinder 101 in the disc body 104.

Therefore, the present invention provides a shaft coupling in which the connecting fitting is integrated with the disk body at the time of forming the disk body without using the bolt 105 and the nut 106, thereby eliminating the mounting work and eliminating the mounting cylinder. The purpose is to

[0005]

To achieve the above object, the present invention provides a disc-shaped shaft coupling which is mounted between a drive-side shaft end and a driven-side shaft end to transmit power. A plurality of cylinders connected to one of the driving side and the driven side are arranged on a concentric circle at equal distances, and these cylinders are surrounded by a rubber-like elastic body, and a disk body is provided between the rubber-like elastic bodies. In a shaft joint in which a coupling metal fitting connected to the other shaft on the driven side or the driving side is attached to the disk body, at least the disk body is molded with a synthetic resin material, and when the disk body is molded, The tubular portion is set in a molding die, and the tubular portion is inserted into the disc body so as to be integrated with the disc body.

[0006]

According to the present invention, since the tubular portion of the connecting fitting is set in the die for molding the cylindrical portion and the disk body is formed so that the tubular portion is inserted, the connecting fitting can be easily attached. .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

In the embodiment shown in FIGS. 1 and 2, a plurality of cylinders 1 connected to the driving side or driven side shafts are arranged on a concentric circle at equal distances. Body 2
The rubber-like elastic bodies 2 adjacent to each other are connected by a disk body 3, and a connecting metal fitting 4 connected to one of the driven side and the driving side shaft is attached to the disk body 3. A mounting hole 5 for fixing a drive shaft, for example, is formed in the center of the connecting fitting 4. The disc body 3 is molded from a synthetic resin material, the tubular portion 6 of the connecting fitting 4 is set in the molding die when the disc body 3 is molded, and the tubular portion 6 is inserted into the disc body 3 to be integrated. It is configured to do. A locking projection 7 is formed on the outer peripheral surface of the tubular portion 6 to firmly attach the disc body 3 and the tubular portion 6 after the disc body 3 is molded. A central hole 8 is formed in the disc body 3. The other shaft is connected to the cylindrical body 1 via the connecting member 107 as in FIGS. 7 and 8.

The second embodiment shown in FIGS. 3 and 4 shows an example in which the cursed portions 2A are formed on both sides of the rubber-like elastic body 2,
Other configurations are the same as in the first embodiment.

The third embodiment shown in FIGS. 5 and 6 shows an example in which the outer peripheral surface side of the disk-like body 3 of the rubber-like elastic body 2 is opened and a part of the rubber-like elastic body 2 is exposed to the outside. Yes, others are the same as in the first embodiment. In this third embodiment,
At the location near the center of the rubber-like elastic body 2, a cut portion similar to that of the second embodiment may be formed.

[0011]

As described above, according to the present invention, at least the disc body is formed of the synthetic resin material, and the tubular portion of the connecting fitting is set in the molding die when the disc body is molded. Since the cylindrical portion is inserted into the body to be integrated, the mounting cylinder body is conventionally embedded in the disc body, and the connecting metal fitting is mounted with the bolt and the nut through the cylinder body. The mounting cylinder is also unnecessary, and the fastening work with bolts and nuts is also unnecessary. Therefore,
According to the present invention, the disc body to which the connecting fitting is attached can be easily manufactured at low cost.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment.

FIG. 2 is a vertical cross-sectional view of FIG.

FIG. 3 is a front view showing a second embodiment.

FIG. 4 is a vertical sectional view of FIG.

FIG. 5 is a front view showing a third embodiment.

6 is a vertical cross-sectional view of FIG.

FIG. 7 is a front view showing a conventional example.

FIG. 8 is a longitudinal sectional view of FIG. 7;

[Explanation of symbols]

 1 tubular body 2 rubber-like elastic body 3 disc body 4 connecting metal fitting 6 tubular portion

Claims (1)

[Claims] 1. A disc-shaped shaft coupling which is mounted between a drive-side shaft end and a driven-side shaft end and transmits power, and which is connected to one of the drive-side shaft and the driven-side shaft. Cylinders are arranged on a concentric circle at equal distances, these cylinders are surrounded by a rubber-like elastic body, and the rubber-like elastic bodies are connected by a disk body, and the other shaft on the driven side or the driving side is connected. In a shaft coupling in which a connecting metal fitting to be connected to a disc is attached to the disc body, at least the disc body is molded with a synthetic resin material, and the tubular portion of the coupling metal fitting is set in the molding die when the disc body is molded. A shaft coupling, characterized in that a tubular portion is inserted into and integrated with the tubular portion.