JPS61160284A - Printer - Google Patents

Abstract

PURPOSE:To provide a printer facilitated in the location of a cassette and the handling thereof, by providing a fixing means for fixing the movement in three-directions to a mount member for mounting an ink ribbon receiving member and a means for energizing said member to the direction reverse to a fixing direction. CONSTITUTION:Ribbon frame 4 is provided on a carriage 4 and projections 4a, 4b are provided to said frame 4. The projection 4a acts on the location of a cassette in the up-and-down direction and the projection 4b acts on the positional determination of the cassette in the left-and-right direction along with the lateral surface 4c of the ribbon frame 4. A cassette lever 5 is operated when the cassette 7 on the ribbon frame 4 is detached and a leaf spring 6 raises the cassette 7 mounted on the ribbon frame 4 upwardly. At this time, the projection 4a prevents the leading end of the cassette 7 from rotating downwardly. The cassette 7 has the hole 7a engaging with the projection 4b. By this constitution, the positional determination of the cassette in the up-and-down direction is easily realized.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field] The present invention relates to a printer such as a typewriter having a carriage and an ink ribbon on the carriage.

[Conventional] In typewriters, etc., where a cassette-type ink ribbon is placed on a carriage and printed, the structure of fixing the cassette to the carriage is similar to the printing position, etc. (no change in content) when viewed from the side. , which is very important. There are various ways to make traditional ribbon frames, but basically! ＋”l
+Z directions were fixed respectively. However, conventional ribbon frames have the disadvantage that once the cassette is fixed, it is difficult to remove, making it inconvenient for typists. Furthermore, because conventional ribbon frames received cassettes on their surfaces, it was necessary to significantly improve the precision of the parts.

In view of the above-mentioned points, the present invention provides a printer that facilitates cassette positioning and cassette handling.

[Embodiment] FIG. 1 is a perspective view of an embodiment of the invention, and 1 is a keyboard for inputting information.

2 is a printing mechanism, which has a carriage on which a type wheel and a hammer are placed.

Information input from a keyboard 1 is recorded on recording paper placed on a platen 3.

FIG. 2 is an exploded perspective view of a cassette that is removably placed on the carriage of the printing mechanism 2 shown in FIG. 1 and a ribbon frame provided on the carriage. In the figure, reference numeral 4 denotes a ribbon frame provided on the carriage, on which protrusions 4a and 4b are provided. The protrusion 4a acts on the vertical positioning of the cassette, and the protrusion 4b acts on the horizontal positioning of the cassette with the lateral surface 4C of the ribbon frame.

Reference numeral 5 denotes a cassette lever, which is operated when removing the cassette 7 from the ribbon frame 4.

Reference numeral 6 denotes a leaf spring that pushes up the cassette 7 placed on the ribbon frame 4. At this time, the aforementioned protrusion 4a
This prevents the tip of the cassette from rotating downward.

A cassette 7 has a hole 7a that engages with the protrusion 4b.

- The embodiment constructed as described above will be further explained.

FIG. 2B is a side view, and the X direction is positioned by the lateral surface 4C of the frame and the protrusion 4b.

V direction if Positioned by the cassette lever 5, the rear surface 4d of the ribbon frame 4, and the protrusion 4b.
The cassette lever 5 is fixed in the Z direction by the force of the tension coil/hook 8. When removing the cassette 7, operate the cassette lever 5 with your finger and the cassette will be pushed by the force of the leaf spring 6. Then, the cassette 7 is lifted to a position where it can be easily removed.

When attaching the cassette 7, the claw on the side of the cassette 7 can be brought into contact with the head of the cassette lever 5, and the lever can be removed by pushing the lever from above with a finger.

As described above, according to the present invention, the vertical positioning of the cassette can be easily realized.

[Brief explanation of the drawing]

Figure 1 is a perspective view explaining the details of the wooden invention, Figure 2 A and B
Figure 4 explains the cassette and ribbon frame... Ribbon frame 4a, fist protrusion 6... Leaf spring procedure amendment (buwi) May 24, 1985 Manabu Shiga, Commissioner of the Japan Patent Office Patented in 1988 Application No. 281433 2, Name of the invention Printer 3, Person making the amendment Relationship to this case Patent applicant address 3-30-2 Shimomaruko, Ota-ku, Tokyo Name Hoo)
Canon Co., Ltd. Representative Kaku ^shi 3 Part 4, Agent residence 3-30-25 Shimomaruko, Ota-ku, Tokyo 146, Date of amendment order (shipment date) April 30, 1985 6, Details subject to amendment Documents and drawings 7, contents of amendments

Claims (1)

[Scope of Claims] A mounting member on which a member for accommodating an ink ribbon is mounted; a fixing means provided on the mounting member for fixing movement of the member in three directions; and a mounting member. and a means for biasing the member in a direction opposite to the fixing direction of the fixing means.