JPS6122285A - Method for molding and assembling clock hand - Google Patents

Abstract

PURPOSE:To reduce the number of manufacturing processes and to impart flexibility to cope with the alteration of a specification, by continuously forming hand molding parts to a hoop material and applying decoration treatment to the hoop material as it is and, thereafter, punching the decorated hoop material in a hand shape immediately before the assembling to clock movement. CONSTITUTION:A strip member 1 having a plurality of hand molding parts continuously formed thereto is prepared and decoration treatment such as painting or plating is applied to said strip member 1. Immediately before each of hands 1a is assembled in clock movement, said hands 1a are withdrawn from the hand molding parts of the strip member 1 by press or laser procesing and each of them is assembled in clock movement as it is. By this method, because the hands 1a are not divided, decoration treatment can be simply performed and handling becomes easy and the manner of coping with the aleration of a design can be performed rapidly.

Description

[Detailed description of the invention] This invention relates to a method for manufacturing needles.

Conventionally, hands are made from a hoop-shaped member using a press for making a wristwatch, then painted or plated, and then individually assembled into a wristwatch.

When manufacturing needles using conventional manufacturing methods and processes, the needles are processed into the product shape before assembly, which can result in defective products because they cannot respond to sudden changes in design, or require painting or plating, etc. When assembling the watch, the hands are already individual pieces, which requires a lot of man-hours to handle.
The problem is that the price of the needle is high.

The present invention has been made in order to eliminate the above-mentioned conventional drawbacks, and aims to provide a manufacturing method that can reduce the number of man-hours, provide an inexpensive needle, and flexibly respond to changes in design. This is the purpose.

The present invention will be explained in detail below with reference to embodiments shown in the drawings. 1st
The figure shows a needle member 1 made up of a plurality of pieces. Said member 1
Apply treatments such as painting or plating in this condition. During this process, since the parts 1 are continuous (not shown), they can be processed (processed) continuously, which can greatly reduce the number of man-hours. Figure 2 is similar to Figure 1. Where should I do the processing?
When assembling the dial 2fc on the movement 3, the member 1 is assembled into a product shape by pressing, processing with a laser, etc. (not shown). Because the parts 1 are connected in a row during assembly, they are easy to handle and can be assembled while being processed according to the design. This allows us to quickly respond to user requests and improve the needle manufacturing process. We can supply inexpensive watches according to the user's tastes without any delay.

[Brief explanation of the drawing]

FIGS. 1 and 2 show an embodiment of the invention in which a needle is manufactured from a plurality of continuous members. Figures 2 A to 0 are examples of various needle shapes. Figure 3 is an assembly diagram of the exterior parts of a wristwatch. :Movement Applicant Morioka Seiko Industries Co., Ltd. Agent Patent Attorney Tsutomu Mogami Figure 1 Figure 2117. ;l (A) Figure 3

Claims (1)

[Claims] In molding and assembling watch hands, there is a process of mechanically or chemically forming a plurality of needle molding parts in a series in the hoop length direction on the hoop material, and a decorative treatment such as painting or plating is applied to the hand molding parts formed in a series. A method for molding and assembling watch hands, which is characterized in that after applying the molding, each hand molding part is individually extracted into a completed needle shape and assembled into a watch movement at the same time.