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1、JIS B*7104 92 E 4733608 0513344 218 JAPANESE INDUSTRIAL STANDARD Shutter cable release tips and sockets for cameras Translated and Published by Japanese Standards Association UDC 771.368 Printed in Japan 4s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS E
2、mployees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:18:06 MSTNo reproduction or networking permitted without license from IHS -,-,- J I S B*7304 92 H 4933608 0533345 354 In the event of any doubt arising, the original Standard in Japanese is to be final authority. Copyright Japanese
3、 Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:18:06 MSTNo reproduction or networking permitted without license from IHS -,-,- JIS BS7L04 92 W 4933608 0513346 090 = UDC 771.368 JAPANESE INDUSTRIAL STANDA
4、RD J I S Shutter cable release tips and sockets for cameras B 7104-1992 1. Scope This Japanese Industrial Standard specifies shutter cable releases (hereafter referred to as “releases“) and their connecting parts used for cameras. Remarks: The following standard is cited in this Standard. JIS B 0205
5、 Metric coarse screw threads 2. Classification Releases shall be classified into two kinds - a combination of a taper external screw thread and a taper internal screw thread and a combi- nation of a taper external screw thread and a parallel internal screw thread. 3. Performance The performance of r
6、eleases shall meet the following requirements: (i) No abnormality shall be found in any part of the cable when a load of 20 N is applied to the plunger to make it operate with the cable being straight- ened. The force of the spring of the release button shall be within 4 N when the button is pushed
7、to the full, and the spring shall return without hindrance when the cable is bent to an angle of 180“ with a radius of curvature of 15 mm. However, this pushing operation shall be performed on the cable straightened for release cables of 90 mm or shorter in length. (2) 4. Shape and dimensions 4.1 pa
8、rts shall be as specified below. The releases and their connecting parts The releases and their connecting (i) The shapes and dimensions of taper external threads and taper internal threads shall be as shown in Fig. 1. Copyright Japanese Standards Association Provided by IHS under license with JSALi
9、censee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:18:06 MSTNo reproduction or networking permitted without license from IHS -,-,- J I S 8*7204 92 U W 4933608 0513347 T27 M - 2 B 7104-1992 Fig. 1. The shapes and dimensions of taper external threads and taper internal th
10、reads Unit: mm External thread side Internal thread side II EI (2) The shapes and dimensions of taper external threads and parallel internal threads shall be as shown in Fig. 2 and Table 1. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/11111110
11、01, User=Wing, Bernie Not for Resale, 03/10/2007 19:18:06 MSTNo reproduction or networking permitted without license from IHS -,-,- JIS B*7104 92 U 4933608 05133YB-7b3 - Thread Pitch designation P M3,4 x 0.5 0.5 Basic size Maximum limit of size Minimum limit of size Tolerance 3 B 7104-1992 Parallel
12、internal thread Major diameter Pitch diameter Minor diameter D D z Di 3.400 3.075 2.859 Not spcified 3.175 2.999 3.400 . 3.075 2.859 - 0.100 0.140 Fig, 2. The shapes and dimensions of taper external threads and parallel internal threads Unit: mm External thread side Internal thread side With plunger
13、 guide Without plunger guide Same as the external thread side in Fig. 1 M 3.4 x 0 . 5 7 Internal thread Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:18:06 MSTNo reproduction or networ
14、king permitted without license from IHS -,-,- -_ - - - J I S B*7L04 72 4733608 0513347 8TT 4. B 7104-1992 4.2 Plunger part The plunger part shall meet the following requirements. (i) The plunger shall not protrude from the end of the guiding part when the release button is released. In addition, the
15、 rear end of the plunger shall not extend to the flexible portion of the release. In the condition in which the release button is pushed to the full, the plunger shall protrude from the end of the guiding part by 12 mm or more. or more in the guiding part. However, the load to push the release butto
16、n shall be 15 N. (2) In this case, the rear end of the plunger shall remain by a length of 3 mm + Plunger Guiding part 5. Inspection the inspection for the performance, shapes, and dimensions and shall meet the requirements of 3. and 4. The releases and their connecting parts shall be subjected to 6
17、. Marking its abbreviation at a suitable place. Each release shall be marked with the manufacturers name or Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:18:06 MSTNo reproduction or ne
18、tworking permitted without license from IHS -,-,- B 7104-1992 Edition 1 Japanese Text Established by Minister of International Trade and Industry Date of Establishment: 1952-03-08 Date of Revision: 1992-12-01 Date of Public Notice in Official Gazette: 1992-12-14 Investigated by: Japanese Industrial
19、Standards Committee Divisional Council on Precision Machinery This English translation is published by: Japanese Standards Association 1-24, Akasaka 4, Minato-ku, Tokyo 107 Japan O JSA, 1993 Printed in Tokyo by Hohbuncha Co., Ltd. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:18:06 MSTNo reproduction or networking permitted without license from IHS -,-,-