JPH0694097A - Drive plate assembly for automatic transmission - Google Patents

Abstract

PURPOSE:To provide a drive plate assembly excellent in assembleability to a vehicle or the like. CONSTITUTION:This is a drive plate assembly 1 being set up in space between an engine crankshaft 5 and a torque converter, and composed of a front plate 3, a drive plate 2 and a rear plate 4. In this constitution, a projection 3a is installed in either of the front plate 3 or the rear plate 4 and, after this projection 3a is inserted into two holes 2d and 4d installed in the other side of the drive plate 2 and the front plate 3 or the rear plate 4, the top part 3b is retightened. With this constitution, this drive plate assembly 1 unifies those of front plate 3, drive plate 2 and rear plate 4 as one body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The drive plate assembly of the present invention can be mainly used for an automatic transmission such as a vehicle.

[0002]

2. Description of the Related Art As a drive plate assembly for an automatic transmission, the one disclosed in Japanese Utility Model Publication No. 63-175348 is known as a prior art. The above-mentioned prior art is shown in FIG.
As described above, a torque converter portion of an automatic transmission for a vehicle is described. Here, the lockup device 100
A drive plate 102 is fixed to an outer peripheral portion of a front cover 101 arranged adjacent to the front plate 101 by a plurality of bolts 103. The drive plate 102 has a front plate 104 and a rear plate on both sides at an inner peripheral portion thereof. 105 is deployed, again multiple bolts 1
It is fixed to the crankshaft 107 of the engine together with the front plate 104 and the rear plate 105 by 06.

Originally, the above-mentioned drive plate assembly has a mounting bolt 1 on the engine side at its inner peripheral portion.
In order to avoid the concentration of the stress caused by 06, the front plate 104 is provided on each side of the drive plate 102.
The rear plate 105 and the rear plate 105 are required. However, since this configuration is adopted, it is necessary to simultaneously fasten the three plates 102, 104, 105 together when mounting them on the engine side, and the workability thereof is extremely poor. There is a problem.

In order to solve the above-mentioned problems, a method of integrating the front plate and the rear plate on both sides of the drive plate with an adhesive was tried by the present inventor, but the drive plate integrated with the adhesive was tried. After attaching the assembly to the engine side with bolts,
When the adhesive hardens, there is a new problem that looseness occurs between the plates. Further, there is a space problem in integrating the three plates with another bolt or the like.

[0005]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a drive plate assembly which can be easily mounted on a vehicle or the like.

[0006]

In order to solve the above-mentioned problems, according to the present invention, a drive plate assembly which is installed between a crankshaft of an engine and a torque converter and which includes a front plate, a drive plate and a rear plate is provided. In, by providing a protrusion on one of the front plate or the rear plate, through the protrusion provided in the hole provided in the other of the drive plate and the front plate or the rear plate, by caulking the top portion thereof, A drive plate assembly is characterized in that the front plate, the drive plate and the rear plate are integrated.

[0007]

According to the above-mentioned structure, the front plate, the drive plate and the rear plate are integrated by being swaged, so that workability is good when the drive plate assembly is mounted on a vehicle or the like. However, no looseness occurs between the plates.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 illustrates a drive plate assembly according to the present invention. In FIG. 1, the drive plate assembly 1
Is roughly composed of a drive plate 2, a front plate 3, and a rear plate 4. The drive plate 2 is composed of a disk portion 2a made of a steel plate and a ring 2b made of steel material, and has a crankshaft 5 of an engine, a torque converter (not shown) of an automatic transmission, and the like as in the prior art shown in FIG. It is arranged between the two and transmits the driving force of the engine to the transmission side. The ring 2b
Is a gear having teeth 2c on its outer circumference, and transmits the rotational force of the starting motor to the drive plate via the teeth 2c when the engine is started. The disk portion 2a and the ring 2b
Is fixed by fitting the inner peripheral portion of the ring 2b to the outer peripheral portion of the disk portion 2a, and then welding at the normal circumferential equally divided positions.

A front plate 3 and a rear plate 4 are arranged on both sides of the drive plate 2, respectively, and a feature of the present invention is that the front plate 3 is provided with a protrusion 3a. The protrusion 3a is punched out by a punch or the like, and is inserted into through holes 2d and 4d provided in the drive plate 2 and the rear plate 4, respectively, and then the top portion 3b is caulked, whereby the drive plate 2 and the front plate 3 and the rear plate 4 are integrated.

The integrated drive plate assembly 1 is fixed to a crankshaft 5 of an engine by a plurality of bolts 6 when mounted on a vehicle or the like, and then the drive plate is attached to a front cover (not shown) of a transmission. It is fixed by using a bolt inserted into a mounting hole 2e provided in 2. With the above, the mounting of the drive plate assembly 1 according to the present invention is completed. However, since the three plates constituting the drive plate assembly 1 are integrated in advance, the workability of mounting is very high. Good.

Although the projection is provided on the front plate side in the above embodiment, it may be provided on the rear plate side. In this case, in order to avoid interference with the caulking portion on the top of the protrusion, it is necessary to provide a recess in the mounting surface of the crankshaft of the engine.

[0013]

In the drive plate assembly according to the present invention, since the drive plate, the front plate and the rear plate are integrated, workability at the time of attaching the drive plate assembly to a vehicle or the like is good, and the drive plate assembly can be easily assembled. The tact can be speeded up, which has a great effect on cost reduction. In addition, since the caulking method is adopted as a method for integrating the three plates, loosening between the plates does not occur after mounting, and since no bolts or the like are used, The weight of the drive plate assembly does not increase, which is effective in reducing fuel consumption of the vehicle, and the burden of work for integration can be minimized.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a drive plate assembly according to the present invention.

FIG. 2 is a sectional view of an automatic transmission according to the related art.

[Explanation of symbols]

1 Drive Plate Assembly 2 Drive Plate 2d Through Hole 3 Front Plate 3a Protrusion 3b Top
4 Rear plate 4d Through hole 5 Crankshaft

Claims (1)

[Claims] 1. A drive plate assembly, which is installed between a crankshaft of an engine and a torque converter and is composed of a front plate, a drive plate and a rear plate, wherein a projection is provided on either the front plate or the rear plate. The front plate, the drive plate, and the rear plate are integrated by inserting the protrusion into a hole formed in the other of the drive plate and the front plate or the rear plate, and then caulking the top portion thereof. And drive plate assembly.