JPS6313737B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a cutter section of a document shredding machine, and is aimed at improving shredding performance.

In the case of a conventional document shredding machine, the rotary blades a, b, and c of the cutter mesh with each other as shown in Fig. 3.
The same rotating blades a, b,
The structure was such that there was nothing in between.

Therefore, there is nothing to hold down the shredded paper between the rotary blades a, b, and c, and as the paper is shredded, the shredded paper shifts between the rotary blades a, b, and c, causing wrinkles. Ta.

Therefore, it is not possible to maintain a constant shredding width at the edge of the shredded paper, resulting in a drawback that reliable shredding cannot be achieved.

Furthermore, there was also a problem in that the wrinkles formed between the rotary blades a, b, and c increased the resistance during shredding and reduced the shredding ability.

The present invention eliminates these conventional drawbacks, and embodiments thereof will be described below with reference to the accompanying drawings.

In FIG. 1, 1 is the main body of the document shredding machine;
Inside is cutter 2 and cutter 2 reducer 3.
It has a motor 4 that is driven via a motor 4, a frame plate 5 that supports both ends of the cutter 2, a column 6 that supports the two frame plates 5, and a screw 7 that supports the motor 4 between the frame plates 5.

The cutter 2 has a plurality of rotary blades 9, 9' arranged side by side at intervals on cutter shafts 8, 8', and a portion of the corresponding rotary blades 9, 9' are rubbed together. It is something that is in contact with the state. 10, 10' are bearings, 11, 11' are cutter shafts 8, corresponding to the rotary blades 9, 9' that are slid together;
8' is a tension roller made of an elastic material such as rubber.

In the above configuration, the tension roller 11,
11' presses the shredded paper onto the circumferential surface of the rotary blades 9, 9', so unlike the conventional method, the shredded paper is drawn into the gap between the rotary blades 9, 9' and wrinkles occur. Therefore, a predetermined shredding width can be ensured in any part of the cutter 2, and confidentiality can be maintained.

Furthermore, since the paper to be shredded is less wrinkled, the resistance during shredding is reduced, resulting in the effect that the shredding ability is not reduced.

As described above, the document shredding machine of the present invention exhibits the effect that by providing the tension roller, any part of the shredded paper can be reliably shredded, and the shredding ability can also be improved.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a document shredding machine according to an embodiment of the present invention, and FIG. 2 is a side view of the cutter section of the shredding machine.
FIG. 3 is a side view of a conventional cutter section. 2...Cutter, 9,9'...Rotary blade, 11,
11'...Tension roller.

Claims (1)

[Claims] 1 A number of rotary blades are attached to the cutter shaft at intervals, and a pair of cutters with tension rollers made of an elastic material interposed between the rotary blades are provided. A document shredding machine in which the side surfaces of the outer circumferential parts are meshed so that they slide into each other, and the outer circumferential surface of the mating tension roller is brought into elastic contact with the outer circumferential surface of the rotary blade.