JPS62928Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a type plate support mechanism for automatic type typewriters, etc., and has a relatively simple structure that allows for easy attachment and detachment of the type plate, and improves accuracy and reproducibility of the support position. The present invention provides a new type plate support mechanism that has good mechanical properties, high mechanical rigidity, and low cost.

For example, in an automatic type typewriter, a type plate on which multiple types can be inserted and removed in rows and columns is moved in the orthogonal rows and columns in response to a print command signal from the outside, and a predetermined type is extracted by the printing mechanism and printed. is configured to do so.

FIG. 1 is a structural explanatory diagram showing an example of a type plate support mechanism in a conventional automatic type typewriter, in which a indicates a type plate and b indicates a support frame.

The typeface 10 has a frame member 11 having an L-shaped cross section.
14 is formed into a rectangular shape, and a type net 15 for arranging a plurality of type characters in the row and column direction in a removable manner is attached within this rectangular frame. That is, the typeface 10 is formed into a rectangular flat plate having a stepped outer peripheral side surface. The support frame 20 is formed into a rectangular shape so as to surround the stepped outer circumferential side of the typeface 10 from the frame members 21 to 24 having a rectangular cross-sectional shape,
The bottom of each corner joint is an L-shaped reinforcing plate 25 to 28.
It is bonded and fixed. Frame members 23 and 24 constituting this support frame 20 are provided with screws S for tightening and fixing the type plate 10 fitted within the rectangular frame.
is screwed in.

However, according to such a configuration, the typeface 10
Since the support frame 20 is fixed by the screw S, there is a risk that the fixing position may be misaligned due to loosening of the screw S, or the support frame 20 may be deformed due to over-tightening of the screw S. Furthermore, when attaching and detaching the typeface 10, the screws S must be loosened and tightened, which is troublesome. In addition, members having an L-shaped cross section must be used as the frame members 11 to 14 of the typeface 10.
This is a cause of high costs.

In order to solve these drawbacks, the present invention consists of a type plate formed into a rectangular flat plate in which a plurality of types are arranged in rows and columns so that they can be inserted and removed, and a frame member with a rectangular cross section that covers the outer peripheral side of the type plate. A support frame formed in a rectangular shape surrounding it, and a support frame that is fixed to the bottom surface of the joints at each corner of the support frame, with a part protruding into the support frame and facing the bottom surface of the typeface to support the typeface. It is characterized in that it is composed of a reinforcing plate that also serves as a plate, and a positioning mechanism that is provided so as to fit into the bottom surface of the typeface and the reinforcing plate of the support frame facing the bottom surface.

FIG. 2 is a structural explanatory diagram showing one embodiment of the present invention, in which a indicates a typeface and b indicates a support frame.

The typeface 30 has frame members 31 to 31 each having a rectangular cross-sectional shape.
34 is formed into a rectangular shape, and a type net 35 similar to the type net 15 in FIG. 1 is attached within this rectangular frame. As a result, the type plate 30
will be formed into a rectangular flat plate shape. In addition,
A handle 3 is provided on the outer surface of the frame members 31 and 33, respectively.
6,37 are attached. Furthermore, mounting holes h ₁ to _{h 4} are provided near both ends of the bottom surfaces of these frame members 31 and 32, respectively.

The support frame 40 includes frame members 41 to 41 each having a rectangular cross-sectional shape.
44 is formed into a rectangular shape so as to surround the outer circumferential side of the typeface 30, and the bottom surface of the joint at each corner is formed into an L-shape so that a part protrudes into the rectangular frame, and supports the support plate of the typeface 30. They are connected and fixed by reinforcing plates 45 to 48 which also serve as reinforcement plates. In addition, these reinforcing plates 45 to 4
8 are provided with pins p ₁ to _{p 4} , respectively, so as to fit into mounting holes h ₁ to _{h 4} provided on the bottom surface of the typeface 30 that is fitted into the rectangular frame. The support frame 40 constructed in this manner is movably connected to guide rails 61 and 62 arranged in parallel via linear bearings 51 to 54.

In such a configuration, when the type plate 30 is attached to and removed from the support frame 40, the pins _p1 to _p4 of the support frame 40 are fitted into the mounting holes _h1 to _h4 of the type plate 30. That is, pins p ₁ to _{p 4} and mounting holes h ₁ to
h ₄ serve as positioning mechanisms that fit together. Here, by giving directionality to the combination of fitting between these pins p ₁ to _{p 4} and attachment holes h ₁ to _{h 4} , incorrect insertion of the typeface 30 in the front-rear direction can be prevented. Note that the combination of the positioning mechanism is not limited to a pin and a mounting hole, but may be a combination of a concave body and a convex body. The typeface 30 fitted into the support frame 40 in this manner is supported by reinforcing plates 45 to 48 which also serve as support plates.

As is clear from these, according to the present invention,
Since screws are not used as in the conventional type, the typeface can be easily attached and detached. In addition, since the bottom surface of the joints at each corner of the support frame is bonded and fixed by a reinforcing plate that also serves as a support plate, the rigidity of the support frame can be increased. In addition, since the type plate is supported by a reinforcing plate that also serves as a support frame and is fixed to the bottom of the joints at each corner of the support frame, the type plate can be constructed from a rectangular cross-section material, making it possible to create complex shapes. There is no need to use a frame member, and costs can be reduced.

In the above embodiment, an example of an automatic type typewriter has been described, but it goes without saying that the present invention can also be applied to a manual type typewriter.

[Brief explanation of the drawing]

FIG. 1 is a structural explanatory diagram showing an example of a type plate support mechanism in a conventional automatic type typewriter, and FIG. 2 is a structural explanatory diagram showing an embodiment of the present invention. 30...Type board, 31-34...Frame member, 35
...Type net, 36, 37...Handle, 40...Support frame, 41-44...Frame member, 45-48...Reinforcement plate, _h1 - _h4 ...Mounting hole, _p1 - _p4 ... …pin.

Claims (1)

[Scope of utility model registration request] A type plate formed into a rectangular flat plate in which a plurality of type characters are arranged in rows and columns so as to be insertable and removable, a support frame formed in a rectangular shape so as to surround the outer peripheral side of the type plate with a frame member having a rectangular cross section, and a support. A reinforcing plate that is fixed to the bottom of the joints at each corner of the frame and has a portion protruding into the support frame to face the bottom of the typeface, and also serves as a support plate for the typeface; A typeface support mechanism comprising a positioning mechanism provided so as to fit into the reinforcing plate of the support frame facing the bottom surface.