Method of manufacturing lead block for rotary connector
A technology for rotary connectors and manufacturing methods, which is applied in the direction of flexible/rotatable wire connectors, contact piece manufacturing, and connection. Less, high manufacturing dimensional accuracy, and the effect of reducing manufacturing costs
Inactive Publication Date: 2009-07-01
ALPS ALPINE CO LTD
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Problems solved by technology
Therefore, the number of steps required to manufacture the lead block increases, and there is a problem that costs such as mold costs increase.
[0010] In addition, as described in Patent Document 2, when the body part and the extension part of the lead block are connected by a U-shaped strip-shaped metal sheet, although the insert molding process of the body part and the extension part can be performed at the same time, in the case of insert molding After molding, it is not easy to bend the strip-shaped metal sheet into a U-shape and correctly arrange the extension part at the designated position on the main body part. Therefore, not only the bending process is complicated, but also it is difficult to determine the connection of the lead block with high precision. The problem of the position of the terminal group
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[0030] Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. figure 1 It is a plan view of a rotary connector provided with a lead block for a rotary connector according to the first embodiment of the present invention; figure 2 for figure 1 A perspective view of the lead block shown; image 3 to constitute figure 2 A perspective view of the connection terminals of the lead block shown; Figure 4 to Figure 7 for figure 2 Explanatory drawing of the manufacturing process of the lead block shown.
[0031] Such as figure 1 As shown, the rotary connector provided with the lead block for the rotary connector according to this embodiment mainly includes: a fixed-side housing 1 having an outer cylinder portion 2 and a bottom wall 3; a movable-side housing 4 having an inner The cylinder part 5, the top plate 6, etc.; the flexible cable 8 can be tightly wound and unwound and accommodated in the annular space 7 ...
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The invention provides a method of manufacturing a lead block for a rotary connector, which can realize densification and can easily and cheaply manufacture a lead block with high dimensional precision with few working procedure. Firstly, punching process is carried out for a metal plate so as to form an approximately tabulate lead block blank, and then bending work is carried out for an appointed number of connecting connectors having the second needle-shaped connector part near the connecting part so that the lead block blank is formed into a cubic shape. The lead block blank is inserted in a mold so as that a basal body formed by insulated resin is molded, and then embedding mold processing is carried out so that the lead block blank except each connector of the connector group and the connecting part is embedded in the basal body. Finally, multiple connectors are mutually electrically independent by taking out the appointed part of the connecting part so that wire leading is finished.
Description
technical field [0001] The present invention relates to a method of manufacturing a lead block for a rotary connector that is mounted on a rotary connector that is mounted on an automobile steering device and that includes an electrical device disposed on the rotor side and an electrical device disposed on the stator side Make electrical connections. Background technique [0002] This rotary connector mainly includes: a fixed-side housing and a movable-side housing arranged concentrically and connected to each other freely in relative rotation; a flexible cable accommodated in a space formed between the pair of housings; and The lead block is mounted on a designated position of each case. If the movable side housing is turned clockwise or counterclockwise, the flexible cable is wound or unwound in the above-mentioned space. [0003] Here, the conventional lead block is a block that holds a plurality of strip-shaped metal pieces (terminal groups) processed in a predetermine...
Claims
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IPC IPC(8): H01R43/00H01R35/04B60R16/02
CPCH01R43/24H01R43/16H01R35/025Y10T29/49204Y10T29/49222
Inventor 矢岛功一
Owner ALPS ALPINE CO LTD