JPH0222282Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a printing device in which a plurality of comb-like type plates are mounted and desired characters on the type plates are selected and printed.

As a conventional printing device of this type, there is known a Japanese typewriter or a Japanese word processor in which a large number of type plates are mounted around the circumference of a cylindrical type storage.

However, with this device, the diameter and axial length of the cylindrical type storage must be increased depending on the number of characters, and as a result, the large-diameter rotatable type storage can be moved with a large stroke in the left and right direction. This resulted in a selection operation, which increased the size and weight of the entire device and caused problems such as a decrease in printing speed.

Therefore, in the present invention, instead of using the conventional printing device using a cylindrical type storage as described above, we have adopted a printing device in which a plurality of type plates are stored and mounted so that each type plate can be moved up and down.
By providing a printing device consisting of a box-shaped type container with an opening at the top that can freely move back and forth with respect to the platen, and an exterior carrier that can move left and right integrally with the type container on the outside, the structure can be made smaller and lighter. In addition, in this printing device, the type container is box-shaped with an open top, so the type plate mounted inside the box can be used during printing or when stored. At times, vibrations can cause the type to jump up unnecessarily from the type container, but this invention prevents this jumping movement and ensures smooth movement of the type container for character selection. It is an object of the present invention to provide a highly practical printing device that can perform printing accurately.

Now, the embodiment of the present invention will be explained with reference to the drawings.
Type pieces 3, which are made flexible by the arms 1 and have type 2 at their tips, are arranged in a row on a type plate 4, and projecting pins 5 are provided on the side surfaces of the type plate 4. A large number of locking holes 6 are drilled in the bottom surface, and the type plates 4 are inserted into slits 8 arranged in a row on the side wall of a box-shaped type container 7 with an opening at the top, and the type plates 4 are arranged in a row inside the side wall between the slits 8. They are accommodated in parallel in the multi-character container 7 between the partition walls 7a.

A roller 9 is rotatably attached to the side wall of the type container 7, and the roller 9 is inserted into the guide rail portion 11 of the left and right guide frames 10, 10 to move the type container 7 relative to the guide frames 10, 10. The guide frames 10, 10 are provided with vertical guide grooves 12, into which a clamping piece 13 is inserted so as to be vertically movable. When located at the lowest end, the projecting pins 5 of the type plate 4 freely pass through the recesses 13a of the clamping piece 13, but when the clamping piece 13 rises, the projecting pins of the type plate 4 at that position 5 is held by the recess 13a, and the type plate 4 is raised together with the holding piece 13.

The guide frames 10, 10 are connected and integrated by a support plate 15 having a long hole 14 to constitute an exterior carrier, and a roller 16 is attached to the frame 17.
The roller 16 is supported by the guide rail portion 17a and the support rod 17' attached to the frame 17,
Guide frame bodies 10, 10 are mounted on a frame 17 so as to be movable left and right.

On the other hand, a printing lever 19 is fixed to the shaft 18a to transmit the operation of the printing lever 19 to the printing lever crank 18, and a type lift crank 20 is inserted into the printing lever crank 18 whose shaft 18a is supported by the frame 17. Due to the protrusion 20a, the type lift crank 20 is not interlocked within a certain rotation angle of the print lever crank 18, but when the rotation angle is exceeded, both are interlocked, and a spring 21 is inserted between the print lever crank 18 and the type lift crank 20. At the beginning of the operation of the print lever 19, the type lift crank 20 is moved in conjunction with the force of the spring 21 to raise the type board 4 as will be described later. is stopped, and when the printing lever 19 continues the printing operation, the spring 21 is extended and the projection 20a is moved.
The play between the type lift crank 20 and the print lever 19 is prevented from interlocking with each other.

A lift hang 22 pivotally supported by the frame 17 is inserted into the groove 20b of the type lift crank 20,
This lift hang 22 has guide frame bodies 10, 10
The shaft 24
a is pivotally supported on the frame 17, and the locking protrusion 2 at one end
4b is inserted into the elongated hole 14 of the support plate 15, and is inserted into the F-shaped groove 24c at the other end of the locking member 24, and the rotation of the type lift crank 20 is transmitted to the lift hang 22. also moved,
As the type lift arm 23 moves, the type lift arm 23 also rotates substantially in conjunction with the movement to raise the clamping piece 13.
As shown in the figure, since the groove 24c of the locking member 24 is shaped like an F-shape, the locking protrusion 24b is raised in conjunction with the lift hang 22 in the initial stage, but after passing the F-shaped curved part, the locking member 24 engages. The locking member 24 no longer rotates, and the locking protrusion 24b is held at that position.

In addition, the guide rail portion 11 of the right guide frame 10 is inserted into the type storage body 7, and the type selection arm 25 is inserted.
is installed, and the type is selected using the indication window hole 26 and the dial 27.

Since the present invention has the above-mentioned configuration, by moving the type select arm 25 back and forth and left and right, the type accommodating body 7 is fixed thereto.
The rollers 9 are guided by the guide rail portions 11 of the guide frames 10, 10 in the front and rear direction.
10 to remove the guide rail portion 17 of the frame 17.
The roller 16 is guided by the support rod 17' and can move in the left-right direction, and by aligning the indication window 26 of the type selection arm 25, the type stored in the type storage body 7 can be moved. Since the desired type 2 on the plate 4 can be moved to the printing position, the type can be selected, and then by pressing the print lever 19, the type lift arm 23 is initially moved.
The locking member 24 interlocks with the locking protrusion 24b to fit into the required locking hole 6 of the type container 7 to prevent movement of the type container 7, and at the same time, the clamping piece 13 engages the projecting pin of the type plate 4. 5 and continues to rise to reach the printable position, and the locking protrusion 24b prevents the movement of the type container 7, thereby preventing the type container 7 from moving while the type plate 4 is rising. This prevents breakdowns and malfunctions due to movement.

Also, due to the vibrations during character selection and printing operations on the type container 7 and during storage of the type plate 4, a large number of type plates 4 in the type container 7 jump up and move, causing the selection of the type container 7 to be carried out. In order to prevent this and ensure smooth character selection, the guide frame of the exterior carrier is installed as shown in Figures 2 and 3. Inside each of the guide frames 10, 10, jump stop levers 10a, 10a that engage with the projecting pins 5 of the mounted type plate 4 from above are integrally installed horizontally, and furthermore, these guide frames 10, 1
Grooves 10b, 10b are provided at positions facing the guide grooves 12, 12 drilled in 0, respectively.

Reference numeral 25' in the figure is an eccentric screw 2 for adjusting the horizontal inclination of the type plate 4 raised to the printing position.
9 is a return spring for the type lift arm 23, and 28 is a return spring for the print lever crank 18.

In the above embodiment of the present invention, the type piece 3 is provided with one type on one arm 1, but the type pieces 3 are attached in multiple stages, such as two types arranged in two upper and lower tiers and three types arranged in three tiers. In this way, it is also possible to increase the number of characters that can be accommodated.

Further, in the above embodiment, the printing lever is operated manually to fix the position of the type container and raise the type plate, but these operations may also be performed by electromagnetic drive of a motor, solenoid, etc. .

Furthermore, in the above embodiment, a long hole is provided in the support, and the locking protrusion moves up and down by passing through this long hole, but the support only supports the left and right guide frames, and the structure does not require a long hole. The invention can be freely changed without departing from the gist of the present invention.

According to the present invention, a type storage body in which a large number of type plates are housed and mounted in parallel is configured in a box shape with an opening at the top so that these type plates can move up and down, and can freely move back and forth with respect to the platen. At the same time, this type storage body and the exterior carrier, which is made up of the outer guide frame and support body, can be freely moved left and right as a unit, making it possible to move large diameter cylindrical type type This improves the reduction in printing speed and fatigue caused by performing the selection operation with a large sliding stroke in the axial direction, making it possible to make the entire device more compact and to select characters quickly and efficiently.

Furthermore, in the present invention, the guide of the outer carrier is used to prevent unnecessary jumping of the type board from the type container due to vibrations during character selection and printing operations using the type container and storage of the type board. This can be completely prevented by providing a jump rod that is integrally installed horizontally inside each of the frames and that engages the projecting pins of the mounted type plate from above. This has the practical effect that the character selection movement of the character container can always be smoothly performed, and the printing operation can be performed reliably.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention: Fig. 1 is a partially cutaway top view, Fig. 2 is an exploded perspective view of the main parts, Fig. 3 is a front sectional view, and Fig. 4 is a side view. The sectional view, FIG. 5, is another sectional view. 2...Print type, 4...Type board, 5...Protrusion pin, 7
...Type container, 10,10...Guidance frame, 10
a, 10a...jump stopper, 10b, 10b...
Groove, 12... Guide groove, 13... Holding piece, 15...
Support plate.

Claims (1)

[Scope of utility model registration request] A plurality of type plates each having a plurality of flexible type pieces attached with types arranged side by side in a comb-teeth pattern are mounted, and the desired type is selected from among these type plates and printed. In the printing device, a box-shaped type storage body with an open top in which the plurality of type plates is housed and mounted so that each type plate can move up and down is provided, and is slidable in the front and rear directions with respect to the platen; An exterior carrier consisting of a guide frame and a support for supporting the guide frame is provided on the outside of the type container, and is movable left and right integrally with the type container in the longitudinal direction of the platen.
Furthermore, in order to vertically move the required type plate, a guide groove is bored in each guide frame of the exterior carrier, in which a clamping piece for clamping the projecting pin of the type plate is vertically fitted and guided. In order to prevent unnecessary jumping movement of the type board housed in the type accommodating body, it engages with the protruding pins of these type boards from above and is integrally disposed horizontally inside each of the above-mentioned guide frames. A printing device characterized in that it is provided with a jump stop lever provided with a groove at a position facing the guide groove.