JPH057509Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Field of industrial application) This invention relates to cylinders used as motive power for various machines and devices. More specifically, this invention relates to cylinders that are used as motive power for various machines and devices. This invention relates to an output doubling cylinder that can obtain higher output than a normal cylinder that obtains output.

(Prior Art) Cylinders are generally used as power for controlling various machines, etc., and are also used in various devices to obtain high output.

Furthermore, in recent years, there has been a demand for downsizing of machines and devices, and there has also been a demand for downsizing of cylinders used as a part of these machines.

Conventionally, cylinders have been constructed either by fixing the cylinder tube and moving the rod body having a piston part, or vice versa, by fixing the rod body and moving the cylinder tube. The movable part is made to slide by pressure such as hydraulic pressure or air pressure applied to the motor to obtain output.

(Problem that the invention aims to solve) However, in the conventional cylinder described above, an output proportional to the pressure receiving area can be obtained for the applied pressure, but in order to obtain high output, the cylinder tube must be enlarged. There was a problem that needed to be solved in that the pressure receiving area had to be increased in diameter and the size had to be increased.

The object of the present invention is to provide a power doubling cylinder that provides twice the power of conventional cylinders with constant fluid pressure applied within the cylinder tube.

(Means for Solving the Problems) The present invention has been made to achieve the above-mentioned object, and includes a rod body 1 integrally having a piston portion 2, and a rod body 1 that is elastically moved toward an output side A. A first projectile body 5 that emits a gun, a cylinder tube 3 that is slidably fitted into the piston portion 2 and the rod portion 4 of the rod body 1 to form a pressurizing chamber C, and a cylinder tube 3 that is moved by an elastic force. The second bullet projectile 6 is pressed down, and the direction changing device 7 is formed so that the rod body 1 slides toward the output side A when the cylinder tube 3 is pressed down.
Inside the frame body consisting of a rod 4 and a lid 10
A constant pressure applied to the pressurizing chamber C causes the rod body 1 to move against the cylinder tube and the cylinder tube 3 against the sleeve case 9, respectively. The structure is such that it slides against the piston part 6, and the acting force applied to the piston part 2 by a constant pressure is accumulated in the first projectile part 5, and the same acting force is applied to one cylinder tube 3. It also acts on the inner surface and is accumulated in the second projectile body 6, and when the pressure is released, both of the acting forces accumulated in the respective projectile bodies 5 are applied to the rod body 1, and the cylinder tube 3 is The gist of the cylinder is a structure of an output doubling cylinder characterized by outputting a force twice the normal acting force obtained when the cylinder is fixed.

(Function) Both the rod body 1 and the cylinder tube 3 are made slidable relative to the sleeve case 9, and the same force proportional to the pressure-receiving area generated by a constant pressure applied to the pressurizing chamber C is applied in different directions. The first projectile is compressed by the piston part 2 out of the force accumulated in each projectile and when the pressure is released (when output is required). The force accumulated in the second projectile 6 that is compressed by the cylinder tube 3 acts on the rod body 1 through the direction changing device 7. , acts to output twice the force that would be obtained if the cylinder tube were fixed.

(Example) An example of the present invention will be described below with reference to the drawings.

The figure shows a rod body having a piston part 2 integrally.

Reference numeral 3 designates a cylinder tube which is slidably inserted into the piston portion 2 and rod portion 4 of the rod body 1 in an airtight manner by attaching a rod seal packing 12 and a piston seal packing 13. A pressurized chamber C is formed between the inside and the piston part 2.

Reference numeral 9 denotes a cylindrical sleeve case for enclosing the cylinder tube 3. A base 8 is attached to one end of the sleeve case, and the rod part 4 of the rod body 1 is arranged so as to protrude from the output side A of the other end. A lid 10 is attached.

Reference numeral 5 denotes a first projectile projecting body for projecting the rod body 1 toward the output side A, and is supported between a support piece 16 formed integrally with the base 8 and the piston portion 2.

6 is a second projectile that pushes down the cylinder tube 3, and is disposed between the cylinder tube 3 and the lid 10.

7 is a direction changing device for sliding the rod body 1 toward the output side A when the cylinder tube 3 is pushed down, and includes a support pin 11 disposed on a support piece 16 formed on the base 8; Support pin 1
One end of the arm lever 17 is brought into contact with the lower end of the cylinder tube 3, and the other end is brought into contact with the lower end of the rod body 1. The rotary body 1 is slid to the output side A by means of the rotor body 1.

Reference numeral 14 denotes a flexible tube, which connects a plug 15 that communicates with the pressurizing chamber C inside the cylinder tube 3 and a plug 15 disposed in the sleeve case 9; A hydraulic system (not shown) connected to the pressurizing chamber C is communicated with the pressurizing chamber C while ensuring that the cylinder tube 3 can freely slide.

The present invention is not limited to the above-mentioned embodiments, and the elastic body may be a disc spring or the like, and the number thereof may be arbitrary, and the pressure applied to the pressurized chamber may be water pressure, gas pressure, etc. If the stroke is short and higher output is required, a multi-stage piston or the like may be optionally used.

Further, the direction changing device 7 is not limited to an arm lever, but can also be formed by a rack and pinion gear.

(Effects of the invention) As explained above, according to the invention, it is possible to obtain twice the output compared to a piston of the same diameter, so it is possible to provide an output doubling cylinder that easily generates high output. Furthermore, in cases where high output is not required, a smaller piston may be used for the same output, achieving effects such as the ability to downsize the cylinder.

[Brief explanation of the drawing]

The drawing is a longitudinal sectional view showing an embodiment of the output doubling cylinder according to the present invention. 1...Rot body, 2...Piston part, 3...
Cylinder tube, 4...Rot part, 5...1st
Bullet projectile, 6... Second projectile, 7... Direction changing device, A... Output side, C... Pressurizing chamber.

Claims (1)

[Scope of utility model registration request] A rod main body 1 integrally having a piston portion 2, a first projecting body 5 for ejecting the rod main body 1 toward the output side A, and a rotary rod body 1 that is slidably inserted into the piston portion 2 and the rod portion 4 of the rod main body 1. A cylinder tube 3 that presses down to form a pressurizing chamber C, a second projectile body 6 that pushes down the cylinder tube 3 with elastic force, and a push-down of the cylinder tube 3 moves the rod body 1 to the output side A.
A direction changing device 7 formed to slide on the pressurizing chamber C is housed in a frame body consisting of a base 8, a sleeve case 9, and a lid 10, with the rod portion 4 protruding from the lid 10. A configuration in which the rod body 1 is slid against the cylinder tube and the cylinder tube 3 is slid against the sleeve case 9 against the first projectile body 5 and the second projectile body 6, respectively, by a constant pressure applied to the rod body 1. Then, the acting force applied to the piston part 2 by a constant pressure is accumulated in the first projectile body 5, and the same acting force acts on the inner surface of one cylinder tube 3, and the second projectile body 6 When the force is released, each projectile 5,
This output doubling cylinder is characterized in that both of the acting forces accumulated in the cylinder tube 6 are applied to the rod body 1 to output twice the normal acting force obtained when the cylinder tube 3 is fixed.