| 摘要 |
1,018,593. Hedge shears. WALLACE M.F.G. CORPORATION. Jan. 22, 1964 [Jan. 29, 1963], No. 2719/64. Heading B4B. Hedge shears comprise blades 2, 4 pivotally interconnected by means of a pivot 12, 14, 16, handle-receiving portions 22, 24 pivotally interconnected by means of a bolt 40 and pivot pins 60, 62 each interconnecting a blade with its associated handle-receiving portion. In a modification, instead of the pivot 12, 14, 16 the blades 102, 104, Fig. 11 (not shown), have annular embossments 103, 105 with aligned openings through which extends a rivet 106. In another modification, the pivot pins 60, 62 are replaced by pins 160, 162, Fig. 12 (not shown), each having a shank portion 164 which is a tight fit in the respective blade and a body portion 166 of increased diameter so as to form a shoulder 168 which seats upon the respective blade, the end of the portion 166 having a bevelled edge 170 received in a chamfered portion of the handle-receiving member 122 or 124. In a further modification, the pivot pins 60, 62 are replaced by pins 260, 262, Fig. 13 (not shown), fixed in the handle-receiving members 222, 224 with cup washers 206 urging the blades 202, 204 towards each other. |
