1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards TEST PROCEDURE OF RIGHT AND LEFT STRENGTH FOR SEAT BACK Do Not Use on New Programs. Being Replaced by GMW14610 EDS-T-4517 ISSUED DATE: 1998. 02. 26 REVISED DATE: 2008. 04. 04 VERSION: 3 (Superceded) EDS-T-4517TEST PRO
2、CEDURE OF RIGHT AND LEFT STRENGTH FOR SEAT BACK PAGE: 1/2 ISSUED DATE: 1998. 02. 26 REVISED DATE: 2008. 04. 04 VERSION: 3 GM DAEWOO Auto & Technology Note: This standard may be applied only for current project (incl. T255 Program). It is Superceded for all future projects and replaced by GMW14610. 1
3、. PURPOSE This procedure verifies the right and the left strength of the seat back upon light loads. 2. SCOPE Front seats of passenger cars 3. TEST SAMPLES Minimum three new seat frames 4. TEST EQUIPMENT AND JIG 4.1. Jig for fitting seats in actual field conditions 4.2. Leveling surface table 4.3. M
4、easuring instruments for loads and length The measuring instruments shall be capable of measuring the load and the length displacement with maximum resolution of 0.1 kgf and 0.1 mm respectively. 4.4. Weight loading equipment Equipment capable of loading the weight greater than 15 kgf 4.5. Recorder A
5、 recorder capable of recording the load and the displacement in load vs. displacement graphs 4.6. Weight loading jig A jig for concentration of loading the weight to a single point 5. METHODS AND SPECIFICATIONS OF TEST 5.1. Preparation 5.1.1. Fit the seat-fixing jig on the leveling surface table, an
6、d then mount a seat on the jig. 5.1.2. Set the adjuster systems of the seat as follows: (1) Seat back: Position specified in the design standard (if the design standard unknown, at an angle of 25 28). (2) Guide rail: Position specified in the design standard (if the design standard unknown, at the c
7、enter position) (3) Height adjuster system: Uppermost position EDS-T-4517TEST PROCEDURE OF RIGHT AND LEFT STRENGTH FOR SEAT BACK PAGE: 2/2 ISSUED DATE: 1998. 02. 26 REVISED DATE: 2008. 04. 04 VERSION: 3 GM DAEWOO Auto & Technology 5.2. Test Method 5.2.1. Load the weight of 15 kgf horizontally on the
8、 left and the right of the seat back upper crossbar both as shown in fig. 1. Measure the displacement and the load in the displacement vs. load graphs. 5.2.2. Measure the load on the upper crossbar in the direction of weight loading. 5.3. Evaluation The sum of maximum transformation in the right and the left direction upon loading the weight of 15 kgf shall be smaller than 12 mm.
