JPH0121304Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cassette opener, and more particularly to a cassette opener that does not damage the film even when the spool of the cassette is pushed out and the film is taken out together with the spool.

Conventionally, as a cartridge opener, a device is known which includes means for holding the outside of the cartridge and a piston for pushing the spool of the held cartridge to remove the cap on the opposite side.

However, with this device, if the cartridge cap is tightly caulked, etc.
The cap does not come off evenly and sometimes gets caught in the cartridge as shown in FIG. 1, and there is a problem in that if the film is taken out in this state, the film will be damaged.

The present invention was made in view of the above circumstances, and its purpose is to solve the above-mentioned problems with conventional cartridge openers and to create a cartridge opener that makes it possible to remove the cartridge cap evenly. It is about providing.

The above-mentioned object of the present invention is to provide a cartridge opener equipped with means for holding the outside of the cartridge and a piston for pushing the spool of the cartridge held by the holding means. This is achieved by a cartridge opener characterized in that it is provided with a cap support means for pressing and holding the cap removed by movement in a direction opposite to the direction of movement of the piston.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

Figure 2 shows a cartridge that is an embodiment of the present invention.
FIG. 3 is a side view showing main parts of the opener. In the figure, 1 is a cartridge, 2 is a spool, 3A, 3B
is a cap, 4 is a piston, 5 is a cartridge holder, 6 is a driven shaft, 7 is a cap holding plate, and 8 is a spring.

The cartridge holder 5 is in a fixed position and grips the cartridge on its outside. The piston 4 is configured to be movable in the direction of arrow A by the force of a drive system driven by a sequence control mechanism (not shown). Further, when the driven shaft 6 is pushed by the movement of the piston 4, it is configured to be movable against the bias of a spring (not shown), and a cap is connected to the tip of the driven shaft 6 via a spring 8. A holding plate 7 is attached.

The operation of the apparatus of this embodiment will be explained in detail below with reference to FIGS. 2, 3, and 4.

When the cartridge opener starts operating with the cartridge 1 set in the cartridge holder 5, the piston 4 moves in the direction of arrow A, contacts the spool 2, and then pushes it out, thereby opening the cap. 3A is removed and is now supported by the cap holding plate 7. The piston 4 moves further and is pushed by it, gradually pushing out the spool 2 and the film F wound thereon. FIG. 3 shows this state.

After the piston 4 is further pushed and the spool 2 comes into contact with the driven shaft 6, the spool 2 and this are held between the driven shaft 6 and the piston 4 via the cap 3A. The film F wound on the film F is taken out from the cartridge 1. This state is shown in FIG.

In the above embodiment, the movement of the piston 4 to remove the cap 3A of the cartridge 1 and the operation of removing the cap 3A and taking out the spool 2 and the film F wound thereon are described as independent operations. However, it goes without saying that these steps may be performed successively as appropriate.

Note that as the cap holding means, a method of holding the cap using air pressure may be used instead of the spring 8.

As described above, according to the present invention, in a cartridge opener including means for holding the outside of the cartridge and a piston for pushing the spool of the cartridge held by the holding means, the front side in the direction of movement of the piston is , a cartridge opener that is provided with a cap supporting means that presses and holds the cap that is removed by the movement of the piston in the opposite direction to the movement direction of the piston, so that the cap can be removed from the cartridge evenly and damage to the film can be prevented. This has the remarkable effect of realizing the following.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing a conventional cartridge opener, Fig. 2 is a side view showing the main parts of the cartridge opener which is an embodiment of the present invention, and Figs. 3 and 4 are for explaining its operation. This is a diagram. 1: Patrone, 2: Spool, 3A, 3B:
Cap, 4: Piston, 5: Patrone holder, 6: Driven shaft, 7: Cap holding plate, 8: Spring, F: Film.

Claims (1)

[Scope of utility model registration request] In a cartridge opener comprising means for holding the outside of the cartridge, and a piston for pushing the spool of the cartridge held by the holding means, a cap that is removed by the movement of the piston is placed at the front in the direction of movement of the piston. A cartridge opener characterized in that a cap support means is provided for pressing and holding the cap in a direction opposite to the direction of movement of the piston.