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Pipe Calking method and calking die used for the method

A technology of mold components and pipe fittings, which is applied in the direction of vehicle parts, connecting components, vehicle cleaning, etc., and can solve the problems of insufficient, loose strength of two parts of fitting, etc.

Inactive Publication Date: 2005-09-07
MITSUBA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, for Figure 9 and Figure 10 In terms of the above-mentioned common pipe filling method shown above, if the one end opening side of the pipe 4 and the pivot are changed due to the change in the outer diameter of the cylindrical portion 5a of the pivot holder 5 and the change in the inner diameter of the cylindrical pipe 4, If there is a gap t in the overlapped portion between the cylindrical portions 5a of the pivot holder 5, the pipe member 4 and the cylindrical portions 5a of the pivot holder 5 cannot contact each other without a gap over their entire peripheries, so that The phenomenon that the above-mentioned two parts of the fitting are loose or the strength of the fitting part is insufficient

Method used

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  • Pipe Calking method and calking die used for the method
  • Pipe Calking method and calking die used for the method
  • Pipe Calking method and calking die used for the method

Examples

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Embodiment Construction

[0025] An embodiment of the present invention will be described below with reference to the accompanying drawings.

[0026] figure 1 Shown is a partial cutaway front elevational view showing a caulking die assembly for use in the pipe caulking method of one embodiment of the present invention. figure 2 Shown is a partial cutaway side elevation view showing a caulk form assembly. Figure 3 shows a plan view of the caulking mold assembly. Figure 4 Shown is a partial cutaway front elevation view showing the caulk form assembly in one configuration. Figure 5 Shown is a partial cutaway front elevation view showing the caulk form assembly closed. Figure 6 Shown is a partial cutaway front elevation view showing the caulk mold assembly compressed.

[0027] Such as Figure 1-6 As shown, the caulking mold assembly 10 used in the pipe caulking method includes an upper mold 11 and a lower mold 12, and the mutually facing surfaces of the upper mold 11 and the lower mold 12 are for...

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PUM

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Abstract

The patent relates to a pipe calking method wherein a calking die comprising a cope and a drag is used to calk and connect a cylindrical pipe to the circular pillar part of a pivot holde of a wiper driving device. The cylindrical pipe is inserted into the circular pillar part of the pivot holder to be overlapped with each other. Then, the overlapped part is set between urethan rubber protruded from the pressing surface of the cope and the urethan rubber protruded from the pressing surface of the drag. Furthermore, the cope and drag are calked together and the overlapped part is pressurized between each pressing part through the urethan rubbers protruded from each pressing surfaces of the cope and drag to calk and connect the cylindrical pipe to the pillar part of the pivot holder.

Description

technical field [0001] The present invention relates to a method of pipe caulking for pipe fittings, for example, caulk-jointing a cylindrical portion of a pivot holder of a wiper drive unit with a cylindrical pipe to form Support, the invention also relates to the caulking form assembly used in the method. Background technique [0002] A wiper drive unit of this type disclosed in JP-7-51953Y2 shown in FIGS. 7 and 8 is known. As shown in Figures 7 and 8, the wiper drive unit 1 includes: an aluminum gear box 2 containing a reduction gear; a wiper motor 3 mounted on the gear box 2; a pair of metal a cylindrical pipe member 4 forming a bracket by fitting a metal cylindrical pipe member 4 to both ends of a cylindrical portion 2a integrally formed with the gear case 2; a pair of aluminum pivot holders 5 each pivoted The holders 5 each have a cylindrical portion 5a to fit with one end side of each pipe member 4; a pivot shaft 6 which is swingably supported by each pivot holder 5...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60S1/34B21D39/04B21D53/88B60S1/04
CPCB60S1/0425B60S1/0427B21D39/04
Inventor 深栖健男
Owner MITSUBA CORP