JPH0532300Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a printing machine in which an auto cut feeder is selectively attached to an opening formed in the upper part of a housing.

2. Description of the Related Art In general, this type of printing machine is configured to automatically feed cut paper to the internal printing section by attaching an auto cut feeder to an opening formed in the upper part of the housing. be. An example thereof will be explained based on FIG. 4. That is, in the opening 3 formed on the top surface of the housing 2 of the printing machine 1,
An automatic cut feeder 6 is selectively installed to automatically feed cut paper 4 to an internal printing section 5 as required. When this auto cut feeder 6 is installed, a gap 8 exists between the edge 7 of the opening 3 of the housing 2 and the side surface of the auto cut feeder 6, and leakage occurs from this gap 8. A soundproof cover 9 made of plastic or the like is inserted to prevent internal noise.

Problems to be Solved by the Invention In the above-described structure, there are variations in the mounting position of the auto cut feeder 6 with respect to the housing 2, and taking these variations into account, it is necessary to Some clearance must be provided between the casing 2 and the auto cut feeder 6, and the gap between the casing 2 and the auto cut feeder 6 cannot be completely sealed, resulting in an incomplete soundproofing effect.

Means for Solving the Problem In a printing machine in which an auto cut feeder is selectively attached to an opening formed in an upper part of a housing, the edge of the opening of the housing and the auto cut feeder A thin film made of an elastic material is provided in the gap between the two to seal the gap.

Function The thin film made of elastic material can sufficiently seal the gap even if the dimensional error of the gap to be sealed is large. This allows the gap between the housing and the housing to be sealed, resulting in good soundproofing.

Embodiment An embodiment of this invention will be described based on FIGS. 1 to 3. First, opposing frames 11 are provided inside the housing 10, and these frames 11 are provided with a printing section 14 consisting of a print head 12 and a platen 13. Further, an opening 15 is formed on the upper surface of the housing 10, and an auto cut feeder is provided for automatically feeding cut paper 16 to the printing section 14, although a detailed explanation of the mounting mechanism thereof will be omitted. 17 are selectively attached by known means.

Next, a gap 19 is formed around the auto cut feeder 17 between the side surface of the auto cut feeder 17 and the edge 18 of the opening 15, and in order to close this gap 19, the auto cut feeder 17 is closed. A soundproof cover 20 surrounding the cut feeder 17,
21 are provided. These soundproof covers 2
Reference numerals 0 and 21 each have a U-shape. A shaft (not shown) is engaged with a groove 23 formed on the front edge of the auto cut feeder 17 to form a hinge, so that the cut feeder 17 is rotatably mounted so as to surround the front periphery of the auto cut feeder 17. . A thin film 24 made of an elastic material such as rubber is provided on the inner peripheral edge of these soundproof covers 20 and 21 to protrude inward. The protruding length of the thin film 24 is determined so that its inner edge comes into contact with the outer surface of the auto-cut feeder 17 and completely closes the gap 19. That is,
Outer cover 25 of the auto cut feeder 17
Due to design requirements, a step portion 26 is formed below the step portion 26 that shrinks inwardly, and even if the gap between the soundproof covers 20 and 21 is “α” at the maximum outer circumference, the soundproof cover 20 , 21 are located, there is a gap having a dimension "β" larger than the above-mentioned "α". Even in such a state, the thin film 24 is configured to contact its outer peripheral surface and seal the gap 19.

In such a configuration, the auto cut feeder 17 is attached to the housing 10, and the soundproof covers 20, 2
1, the gap 19 formed between the auto cut feeder 17 and the edge 18 of the opening 15 of the housing 10 is
4, it is completely occluded.

In this state, the noise generated in the printing section 14 does not leak directly to the outside, and the noise level is considerably reduced.

Furthermore, the position of the auto-cut feeder 17 with respect to the opening 15 of the housing 10 has a certain degree of tolerance due to the design, and the thin film 24 is elastic even if it moves considerably within this tolerance. The deformation effectively closes the gap 19. As a result, it is possible to seal the gap 19 without increasing the dimensional accuracy of each component, and effective soundproofing can be achieved.

In addition, in the above embodiment, the soundproof cover 2
Although the thin film 24 is attached to the casing 10 or the auto cut feeder 17 in practice, the thin film 24 may be directly and integrally attached to the housing 10 or the auto cut feeder 17 without providing the soundproof covers 20, 21. It is a good thing.

Effects of the invention As described above, this invention provides a printing machine in which an auto cut feeder is selectively attached to an opening formed in the upper part of the housing, and the edge of the opening of the housing and the auto cut feeder Since a thin film made of an elastic material is provided in the gap between the cut feeder and the cut feeder to seal the gap, even if there is a large dimensional error in the gap that should be sealed by the thin film, the thin film is an elastic material and can be used to seal the gap. The gap can be sealed,
As a result, even when the auto cut feeder is attached, the gap between the auto cut feeder and the housing is sealed by the thin film made of the elastic material, and a good soundproofing effect can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view showing one embodiment of this invention, Fig. 2 is an overall perspective view with the front soundproof cover open, Fig. 3 is a perspective view of the soundproof cover, and Fig. 4 is a conventional It is an exploded perspective view showing an example. 10... Housing, 15... Opening, 17... Auto cut feeder, 18... Edge, 19... Gap, 24... Thin film.

Claims (1)

[Scope of utility model claims] In a printing machine in which an auto cut feeder is selectively attached to an opening formed in the upper part of the housing, this is installed in the gap between the edge of the opening of the housing and the auto cut feeder. A printing machine characterized by having a thin film made of an elastic material that seals the gap.