JPH06300009A - Flexible rod driving cylinder - Google Patents

Abstract

PURPOSE:To enable a bendable flexible rod member to be attached into a limited apparatus by composing it of a cylinder, piston and rod operated by oil pressure, air pressure, etc., so that it fits and extend through both side plates of the cylinder. CONSTITUTION:A rod 3 made of a flexible and movable member is attached to a piston 2 incorporated in a cylinder 1 to extend through both side plates 4 of the cylinder. Both ends of the bent rod 3 engaging rod guides 6 to be bent are coupled with a driven member 7 to form a loop. The reciprocation of the piston 2 operated by oil or air forced into a hole 5 in the cylinder can reciprocate the driven member 7 with the flexible rod 3 forming the loop. The reciprocation having a large stroke in an arbitrary position and direction can be obtained in a limited apparatus by providing properly the rod guides 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive cylinder operated by hydraulic pressure or air pressure, and more particularly to a drive device suitable for reciprocating motion within a limited device.

[0002]

2. Description of the Related Art A conventional drive cylinder requires an installation place which is more than twice the effective stroke, and there are many restrictions in mounting it in a limited device.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a drive cylinder capable of obtaining a large stroke operation in an arbitrary direction by providing a lot guide in a limited place in the apparatus. Is to provide.

[0004]

In order to achieve the above object, a rod mounted on a piston of the cylinder is formed of a flexible member which is bendable, and both side plates of the cylinder are fitted through the rod.
Engages the lot guide to form a loop.

[0005]

The operation of the piston according to the hydraulic pressure or pneumatic pressure fed to the drive cylinder of the present invention is such that the flexible rod that engages with the lot guide and forms a loop reciprocates the driven member in any direction. Can operate.

[0006]

EXAMPLES The present invention will be described by way of examples. A piston 2 incorporated in a cylinder 1 shown in FIGS. 1 and 2 is provided with a rod 3 made of a bendable flexible member and both side plates 4 of the cylinder. The lot 3 which is fitted and mounted, and which is engaged with the lot guide 6 to be curved, has its both ends joined to the driven member 7 to form a loop. Reciprocating operation of the piston 2 operated by oil or air pumped from the hole 5 of the cylinder can reciprocate the driven member 7 by a flexible rod forming a loop.

[0007]

Since the present invention is constructed as described above, by appropriately providing a lot guide, reciprocation of a large stroke in an arbitrary position, in an arbitrary direction, in a limited device. You can get the operation.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a flexible rod drive cylinder of the present invention.

FIG. 2 is a diagram of an embodiment of the present invention.

[Explanation of symbols]

 1 Cylinder 2 Piston 3 Rod 4 Cylinder side plate 5 Cylinder hole 6 Lot guide 7 Driven member

Claims (1)

[Claims] 1. A drive cylinder comprising members such as a cylinder, a piston, and a rod which are actuated by hydraulic pressure or air pressure. A drive cylinder for a flexible rod, characterized in that (4) is fitted therethrough.