the central portion and the trigger 56 is pivotally supported by a support 51 of the rear part of the base body 50 on the inside of the base body 50 a leg operating unit 6 including a leg connecting unit 60 and leg mounting units 61 and 61 are formed the shaft 65 is inserted through the shaft hole 61 a of the tip and the shaft hole 60 b of the leg connecting unit 60 and the leg mounting unit 61 is pivotally mounted to the leg connecting unit 60 on the other hand the leg mounting unit 61 is pivotally mounted to the base body 50 by inserting the shaft 66 into the bearing 61 b of the tip reference numeral 54 denotes a pin which fixes the base body 50 and the cover member 90 a nose operating unit 7 is provided in the front part of the base body 50 the nose operating unit 7 represents a nose of an elephant and includes a case 71 which is bent downward and has a hollow inside a spring support rod 73 accommodated inside the case 71 and a spring 72 wound around the spring support rod 73 as illustrated in the drawings in the block state the case 71 of the nose operating unit 7 is placed on the slope 50 a at the front end of the base body 50 and the engagement portion 73 a of the upper end of the spring support rod 73 is fixed to the upper end of the cover member 90 at the same time an upper end protrusion.