JPH0526266Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a connection structure between an engine and a torque converter disposed at the next stage of the engine.

[Prior art] Generally, the transmission placed next to the engine is
As shown in FIG. 3, the end plate 3 of the case 2 of the transmission 1 is connected to the cylinder block 5 of the engine 4.
It is installed by tightening bolts 26, 26, . . . on the end wall of.

If the transmission 1 is an automatic transmission using a torque converter 7 as shown in FIG. Bolt 17' to cover plate 10 of torque converter 7
The engine output shaft 8 and the torque converter 7 are connected by fastening and fixing them.

However, in the above-mentioned conventional connection structure, the drive plate 9 is bolted onto the cover plate 10 with bolts 17' from a direction perpendicular to the plate surface, so when inspecting the torque converter 7, it is difficult to inspect the cylinder block 5. It is necessary to insert a jig 12 such as a socket trench into the space between the oil pan 11 installed below and the end plate 3 of the case 2 to perform the work.
There was a problem that the workability was very poor.

[Purpose of the invention] The purpose of the invention is to improve serviceability by improving the connection structure between a drive plate and a torque converter.

[Configuration of the invention] Therefore, in the present invention, an automatic transmission having a torque converter is disposed next to the engine, and a drive plate fixed to the output shaft of the engine is
In the connection structure between the engine and the torque converter that is attached to the cover plate of the torque converter, the outer peripheral edge of the drive plate is bent to wrap around the outer periphery of the torque converter, and this bent portion A starting ring gear is fixed to the part near the corner of the torque converter case, and a drive plate is fixed to the outer periphery of the torque converter case in a direction perpendicular to the output shaft of the engine at a part corresponding to the bent part of the drive plate. A service hole is provided for inserting a bolt to be fastened and fixed to the cover plate of the torque converter, and the service hole is provided with an opening for operating the ring gear from the outside.

[Effects of the Invention] According to the present invention, work such as tightening or removal of bolts for fastening and fixing the drive plate to the cover plate can be performed from below the case of the torque converter, thereby improving work efficiency. Furthermore, when tightening the bolts, the relative positions of the drive plate and cover plate can be easily adjusted by operating the starting ring gear from the outside, resulting in even better workability. Furthermore, since there is no need to take up a working space between the oil pan and the oil pan, the capacity of the oil pan can be increased accordingly.

[Example] Hereinafter, embodiments of the present invention will be described in detail.

As shown in FIG. 1, which is an enlarged sectional view of the main parts, in the present invention, the outer circumferential edge of the drive plate 9 is approximately aligned with the outer circumferential cylindrical portion 10a of the cover plate 10 of the torque converter (see 7 in FIG. 3). The bent portions 9a are formed by bending them at substantially right angles so as to be parallel to each other. A starting ring gear 13 is fitted and fixed by welding to a portion near the corner of the bent portion 9a, while bolt holes 14 are opened at appropriate angular intervals on the free end side.

In addition, a threaded boss 15 is inserted into the bolt hole 15 on the outer peripheral cylindrical portion 10a of the cover plate 10.
Fix it by welding in accordance with the above.

In the lower part of the case 2 of the torque converter 7 near the end plate 3, a substantially circular service hole 16 whose opening shape is shown in FIG. 2 is provided in advance. This service hole 16 is provided with a rectangular notch 16a so that the starting ring gear 13 can be rotated from the outside.

While turning the starting ring gear 13 from the outside, with the bolt hole 14 and boss 15 aligned, the bolt 17 is inserted through the service hole 16 and bolted up using the socket trench 18.

By repeating such operations, the drive plate 9 bolted onto the engine output shaft 8 and the cover plate 10 of the torque converter 7 are removed.
The torque converter 7 and the engine output shaft 8 are now connected.

As mentioned above, since the bolts 17 can be tightened and removed from the service hole 16 at the bottom of the case 2, serviceability is improved and work can be performed easily. Furthermore, since the starting ring gear can be turned from the outside, the bolt tightening position can be easily adjusted.

[Brief explanation of the drawing]

FIG. 1 is an enlarged partial sectional view corresponding to section A in FIG. 3 showing an embodiment of the present invention, and FIG.
3 is a side view showing a connecting structure between an engine and a transmission, and FIG. 4 is a sectional view showing a conventional connecting structure between an engine and a torque converter. 1...Transmission, 2...Case, 4...Engine, 7...Torque converter, 8...Output shaft, 9
...Drive plate (9a...bending part), 15
...Boss, 16...Service hall (16a...
Notch), 17...Bolt.

Claims (1)

[Claim for Utility Model Registration] An automatic transmission with a torque converter is placed next to the engine, and a drive plate fixed to the output shaft of the engine is attached to the cover plate of the torque converter. In the connection structure between the engine and the torque converter, the outer peripheral edge of the drive plate is bent to wrap around the outer periphery of the torque converter, and a starting ring gear is located near the corner of the bent part. A bolt is inserted into the outer periphery of the torque converter case to fasten and secure the drive plate to the cover plate of the torque converter in a direction perpendicular to the output shaft of the engine at a location corresponding to the bent portion of the drive plate. A service hall has been opened for
The engine and torque converter connection structure is characterized in that the service hole is provided with an opening for operating the ring gear from the outside.