JPS5897448A - Manufacture of wheel member for torque converter - Google Patents

Abstract

PURPOSE:To simplify manufacturing process and heighten efficiency by forming the core member of a wheel for a torque converter and a retainer member in a body by the same material, and cutting with V-shaped edges in separating it by two lines, and thereby eliminating necessity of finishing of cut edges. CONSTITUTION:The core member 1 of a wheel for a torque converter and a retainer member 5 are drawn into a body using the same material. Then, it is cut by press working along two adjoining lines 3, 3 to obtain a core member 1 and a retainer member 2. In this case, cutting is made by V-shaped cutting edges 4, 4 to make inner edges 5, 6 of the two members 1, 2 faces slanting outward to each other. By this way, the trouble to cut vertical faces obliquely in the second stage can be saved, and the core member 1 and retainer member 2 can be manufactured simply and efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for making a core member and a retainer member of a wheel for a torque converter made of sheet metal.

Conventionally, this method involves forming the core member a and the retainer member of the wheel integrally from the same material in advance, as shown in the first diagram, and then pressing them into two adjacent parts in the middle. Cut at the line 0,0 and mark each S line a on the inside and outside of it.

Has a formula been proposed to obtain b? In this case,
Each cut is made perpendicularly to each section a.

In general, the mutually inner side edges d and e of b form a vertical plane that is approximately orthogonal to each plate 1, and if a torque converter is constructed using these, is the second
As shown in the figure, the inner circumferential edge d of the core member a interferes with the stator f side, and the inner circumferential edge θ of the retainer member faces upright into the oil passage of the torque converter and forms the oil passage. They are therefore likely to be cut off diagonally by machining, if necessary, prior to their arranging, with the inconvenience of making manufacturing inefficient.

The purpose of the present invention is to provide a method free of such inconveniences, in which the core member and retainer member of a torque converter wheel are drawn and formed integrally from the same material in advance, and then this is In this method, each member is cut on two lines adjacent to each other in the middle by press working, and each member is obtained on both sides of the line. The inner side edges of each of the two sides are inclined outwardly.

An example of implementing the present invention will be explained with reference to the attached drawings.

Figures 5 and 4 show an example of this. 1. The core member (1) of a torque converter wheel and the tri-retainer member (2) are drawn together in advance from the same material and then press-processed. Due to the mutual rf! 4 tangent 2
Cut at main line +31 +31 and attach each member f on both sides.
11121, which is not particularly different from the previous one.According to the present invention, each cut is made by each V-shaped large shape (41141) as shown in FIG. , thus each mutually inner side edge (5) of both members (llt2)
1 (6) were arranged so that they were tilted outward from each other.

In the illustrated one, the large size 14H41 is arranged side by side on the punch (7) in preparation for the cutting, and a pair of recesses s+81 (8) are prepared inside the double-edged type +41 and +41 in preparation for material escape. It was to so. Both members (1) 1 thus obtained
The wheel (9) obtained using 2) is, for example, as shown in FIG.
There is no interference with the retainer member (2), and the retainer member (2) faces the oil passage in an inclined direction to reduce oil passage resistance. In the drawings, aυ indicates the blade of the wheel (9), and a2) indicates its outer shell member.

In this way, according to the present invention, when cutting the core member and the retainer member, each cut is made in a large V-shape, so that each side edge can be made into an inclined surface in advance, and the core member and the retainer member can be cut vertically. This has the effect of simplifying and highly efficient manufacturing by omitting the trouble of cutting diagonally the surface obtained in the next step.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams of the conventional example, FIG. 3 is a diagram illustrating cutting in one example of the method of the present invention, and FIG. 4 is a cut side view of the resulting Torque Humverter. (1)... 037 member (2)... Retainer member + 3 x 3)... Cutting line + 4 x 4 door/blade shape (5) + 61... Side edge Patent applicant Honda Motor Co., Ltd., 1. − Agent Kin Kitamura −1゛; 2 other people

Claims (1)

[Claims] The core member and retainer member of a torque converter wheel are drawn and formed together from the same material in advance, and then this is cut by press working along two mutually adjacent lines in the middle to form each member on the inner and outer sides. For a torque converter in which each cut is made in each V-shaped rectangle so that each mutually inner side edge of each member is made into an outwardly facing inclined surface. A method for manufacturing a wheel member.