Figs. 3 by means of 6 show an illustration of this the reciprocating carriage 2 possessing a hoisting and lowering system. Carriage 2 includes: 4 track rims 3, 4 moving on the monitor 1, one of the a number of keep track of wheels 3, 4 becoming a driving a car wheel 4; a motor 6 using a rate decrease products 5, which engine 6 is attached to the driving a vehicle wheel 4 via some equipment (not proven) in the pace lessening equipment 5; a V-designed help 7 competent at helping coils W of different sizes; plus a hoisting and reducing device 8 for hoisting and decreasing the support 7.

As proven in Fig. 5, the hoisting and reducing gadget 8 includes: a hoisting/decreasing power device including a hydraulic cylinder 9 arranged erect at the core of the structure in the carriage 2, and a hoisting/cutting down handle hydraulic control device remain 11 for governing the hoisting and reducing operations of the hydraulic tube 9; as well as a guide system 13 for guiding the hoisting and lowering of the hydraulic cylinder 9 in an attempt to enable it to perform vertical hoisting and lowering movements inside a stable method. The guideline system 13 includes: a hoisting/reducing platter 15 in which the V-designed support 7 is attached and that is attached to rod 10 in the hydraulic tube 9 via a spherical bushing 14; a cylindrical system 16 integrally fastened for the hoisting/lowering platter 15 and stretching out downwardly in a way with regards to deal with the hydraulic cylinder 9; two manual rails 17 fastened to the outside top of the cylindrical physique 16 in such a way with regards to expand up and down; and lower and upper pairs of hoisting/cutting down information rollers 18 that happen to be rotatably maintained by the carriage 2 and which support the manual rails 17 between the two.

As displayed in Fig. 6, a traveling place control signifies 20 is provided within the decrease portion of the reciprocating carriage 2 using a hoisting and decreasing process. In this embodiment, the vacationing situation control implies 20 includes: a travelling placement detecting gadget 21; a home position looking at photoelectric change 22; a set position examining photoelectric switch 23; a carriage retreat emergency restriction move 24; and a carriage advance crisis reduce switch 25.

The vacationing position detecting product 21 is attached to the underside of carriage 2. The vacationing position discovering product 21 registers the space traveled from your house placement and and thus the position of the carriage 2. To do this, the traveling placement detecting gadget 21 decides the amount of revolutions of a rolling pinion 28 that is in mesh having a traveling placement finding device traveling holder 27, that is attached on the surface through a bracket 26 in a way regarding be parallel using the monitor 1.

Your home place checking out photoelectric move 22 along with the resolved situation checking photoelectric move 23, that are each of the transmission sort, increase downwardly from your bottom (flooring) of the carriage. A property place sensing dish 29 developing a light transmission hole plus a set position sensing plate 30 also possessing a light transmission pit are correspondingly arranged at the predetermined home place along with a predetermined set placement on to the floor in order to correspond using the photoelectric changes 23 and 22, respectively.