Cylinder
A cylinder and cylinder barrel technology, applied in the direction of fluid pressure actuators, mechanical equipment, servo meter circuits, etc., can solve the problems of longer production takt time and loss of production equipment
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no. 1 approach
[0029]
[0030] as Figure 1 As shown, the cylinder 10a of the first embodiment has a cylinder 12 of the cylinder, a head cover 14 that seals (blocks) one end of the cylinder 12, and a rod cover 16 that seals (blocks) the other end of the cylinder 12. The cylinder barrel 12, the head cover 14 and the rod cover 16 are connected in the axial direction of the cylinder 10A through a plurality of connecting rods 18 and connecting bolts 20. A head side port 22 is formed on the upper surface (one side) of the head cover 14. A rod side port 24 is formed on the upper surface (the other side) of the rod cover 16. Piston rod 26 protrudes from rod cover 16. In addition, the axial direction of cylinder 10A refers to the direction in which piston rod 26 extends.
[0031] as Figure 2 As shown, a cylinder chamber 28 is formed inside the cylinder barrel 12. The cylinder chamber 28 is provided with a piston 30, which slides axially between the travel start end (travel end) on the side of the head c...
no. 2 approach
[0081] Next, reference Fig. 8 ~ Fig. 10 Next, the cylinder 10b of the second embodiment will be described. In addition, for cylinder 10A according to the first embodiment (refer to Fig. 1 ~ Fig. 7 ）The same constituent elements are marked with the same reference numerals and the detailed description is omitted, which is the same below.
[0082] The cylinder 10b of the second embodiment is different from the cylinder 10a of the first embodiment in the following aspects: the orifices 66 and 80 are roughly coaxially connected with the second flow path 82B, and the fourth flow path 82d is connected with the first port (head side port 22 or rod side port 24). Therefore, in the cylinder 10b of the second embodiment, the orifices 66, 80, the second flow path 82B and the third flow path 82C are roughly coaxial, and the first flow path 82a and the second flow path 82B are used as the flow paths of the orifice parts 58 and 72. Thus, compared with cylinder 10a, the number of flow paths in th...
no. 3 approach
[0086] Next, reference Figure 11A and Figure 11B , the cylinder 10C of the third embodiment will be described.
[0087] The cylinder 10C of the third embodiment is similar in appearance to the cylinder 10b of the second embodiment (refer to Fig. 8 ~ Fig. 10 ）Roughly the same. However, in the cylinder 10C of the third embodiment, a flow path 102 communicated with the outside is formed in the head part 90. The flow path is formed as a fourth flow path 82d that connects the third flow path 82C with the outside. That is, in the third embodiment, a flow path for discharging gas is not formed between the third flow path 82C and the first port (head side port 22 or rod side port 24). In addition, in Figure 11A and Figure 11B In Fig. 2, a case where two fourth flow paths 82d are formed in the cover portion 90 is illustrated.
[0088] The action of cylinder 10C in the third embodiment is basically the same as that of cylinder 10B in the second embodiment, but when the pressure in the first...
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