JP2528253Y2 - Ribbon cassette - Google Patents

Description

[Detailed description of the invention] (Industrial application field) In the invention, the ribbon is exposed from the supply part to the outside of the case and used, and then the used ribbon is wound into the case instead of being wound up. The present invention relates to a ribbon cassette which is stored in an irregular state in a storage section.

(Prior Art) Conventionally, this kind of ribbon cassette has a structure in which a used ribbon is disposed between a ribbon supply portion provided at one end of the case and a ribbon feeding portion provided at the other end of the case. It is common to arrange a storage unit. In addition, a partition wall is formed integrally with the case body to partition the ribbon storage section.

By the way, since the volume is constant when the ribbon storage portion is surrounded by the partition wall, the storage length of the used ribbon is limited, and it is difficult to extend the life of the ribbon by increasing the entire length of the ribbon. There was a problem. Further, if a long partition wall surrounding the ribbon storage portion is provided in the case, there is another problem that the cost is increased.

(Problem to be Solved by the Invention) In the invention, a ribbon supply portion is provided at one side end in a case, and the ribbon used once exposed outside the case is used at the other side end. In order to solve the above-mentioned problems, in the ribbon cassette having a structure in which a used ribbon storage portion is provided between the two, a volume of the used ribbon storage portion can be increased, and a ribbon storage portion can be provided. It is an object of the present invention to make a part of the partition wall unnecessary.

(Means for Solving the Problems) In order to solve the above problems, the ribbon cassette of the present invention is provided with a ribbon supply section (4) at one side end in the case and a ribbon supply section (4) at the other side end. In a ribbon cassette having a structure in which a ribbon transfer portion (8) used once exposed to the outside of the case is provided and a used ribbon storage portion (17) is provided between the two, a leading end of the ribbon (2) is provided. The part and the part slightly behind it are fixed to the case so that the part between them surrounds the unused ribbon loop of the ribbon supply part (4) substantially half way and forms a part of the partition wall of the ribbon storage part (17). It is characterized by wearing.

(Example) Hereinafter, an example is described with reference to drawings. The case comprises a case body (1) and a lid (not shown),
An unused cloth ribbon (2) impregnated with ink for application to the surface (A) to be applied such as paper is wound around a rotatable shaft (3) at one end of the case body (1). And a feeding roller (5) that is rotated at a fixed angle by a drive shaft (20) at the other end of the case body (1). 5) A ribbon feeding portion (8) comprising a clamping roller (7) for pressing the ribbon (2) against the force of the leaf spring (6). An opening (9) for once exposing the ribbon (2) to the outside of the case is provided at the front end of the case body (1), and the ribbon (2) is pressed into the opening (9) to apply the ribbon (2) to the surface to be coated (A). An application member (10) to be brought into contact with the opening (9) is provided so as to be able to protrude and retract in and out of the opening (9). The coating member (10) is axially attached to the front end of a support shaft (13) protruding from a support wall (12) provided substantially at the center of the case body (1) and equilibrium with the rear wall (11). It is slidably fitted and urged by a coil spring (14) interposed between the support wall (12) and the direction protruding outside from the opening (9). The leading end of the ribbon (2) that has passed between the feeding roller (5) and the clamping roller (7) is a ribbon supply unit (4).
Between the side wall (15) and the rear wall (11), and a portion slightly behind the leading end of the ribbon (2) is fastened to the side end of the support wall (12) to stop at the leading end of the ribbon. The portion between the two attached portions (hereinafter referred to as a “ribbon tip fastening portion portion (16)”) is arranged so as to substantially half-circle the unused ribbon (2) loop wound around the shaft (3). Have been. A space surrounded on three sides by the support wall (12), the ribbon leading end fixing portion (16), and the rear wall (11) is used as a used ribbon storage portion (17). That is, the part (16) between the ribbon leading end and the fixing part replaces a part of the partition wall in the ribbon accommodating portion of the conventional ribbon cassette. Since the ribbon (2) is made of cloth and flexible, the use of the ribbon (2) wound around the shaft (3) progresses and the outer diameter of the ribbon is reduced. 16) can be moved outward as indicated by a two-dot chain line in the figure, and the volume of the used ribbon storage portion (17) increases.

A projection (18) is provided on the inner surface of the opening (9) at the front end of the case body (1), and the projection (18) is formed on the side surface of the coating member (10) facing the inner surface of the opening (9). 1
8) A projection (19) is also provided at a position slightly forward. This is because, during the coating operation, a coating pressure is applied to the coating member (10) from the coating surface (A) via the ribbon (2), and the coating member (10) retreats while compressing the coil spring (14). The ink ribbon (2) passing between the inner surface of the opening (9) and the side surface of the coating member (10) is sandwiched between the projections (18) and (19) to prevent the movement of the ink ribbon (2). Therefore, even if there is a relative movement between the surface (A) to be coated and the ribbon (2), the ribbon (2) is prevented from being displaced, so that the coating operation can be reliably performed. is there.

(Effects) The configuration of the present invention is as described above, and a part of the partition wall of the used ribbon storage portion is formed by the ribbon, and the partition wall by the ribbon is moved in with the progress of the use of the ribbon. Since the used ribbon is moved outward by being pressed by the used ribbon, the used ribbon storage portion is enlarged, so that the length of the ribbon that can be stored is increased and the life of the ribbon cassette can be prolonged. In addition, since a part of the partition wall of the used ribbon storage portion is substituted by the ribbon, the inside of the case has a simple structure, and there is an effect of reducing costs.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention. (1) ... case body, (2) ... ribbon, (3) ...
Shaft, (4) Ribbon supply unit, (5) Feed-in roller, (6) Leaf spring, (7) Nipping roller,
(8) Ribbon feeding section, (9) Opening, (10)
Coating member, (11) ... rear wall, (12) ... support wall, (13)
… Support shaft, (14)… Coil spring, (15)… Side wall,
(16) ... Ribbon tip fastening area, (17) ... Used ribbon storage section, (18) (19) ... Protrusion, (20) ...
Drive shaft, (A)...

Claims (1)

(57) [Scope of request for utility model registration] 1. A ribbon supply section (4) is provided at one side end in a case, and a ribbon rewinding section (8) once exposed and used outside the case is provided at the other side end. In a ribbon cassette having a structure in which a used ribbon storage portion (17) is disposed between the two, a leading end portion of the ribbon (2) and a slightly rearward portion thereof are positioned between the ribbon supply portion (4) and the ribbon supply portion (4).
A ribbon cassette characterized in that it surrounds an unused ribbon loop substantially half way around and is fixed to a case so as to be part of a partition wall of a ribbon storage section (17).