JPH018368Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a horizontal feed device for a Japanese typewriter, and in particular, in addition to a predetermined feed pitch, a feed pitch smaller than this predetermined feed pitch can be arbitrarily predetermined. The present invention relates to a lateral feed device that allows easy selection of small feed pitches.

Conventionally, the horizontal feed device of Japanese typewriters has been designed to perform typing by arbitrarily selecting a feed pitch from among predetermined feed pitches that are an integral multiple of the minimum pitch. While working, type in a so-called separation method, for example, by setting the feed pitch to half the previous pitch and printing with a space of half the feed pitch of one character between words. If you want to do this, you have to operate the feed pitch selection knob to switch to a scale that is half the pitch of the previous feed pitch, and then return the knob to its original position after typing. It was complicated to operate.

Also, some conventional Japanese typewriters automatically set a feed pitch that is half the feed pitch at the same time as the feed pitch is set.
For example, when changing the feed pitch to one third of the previous pitch or any other desired feed pitch, the feed pitch operation knob must be changed, which is a cumbersome operation.

In addition to the predetermined feed pitch, there were also machines that allowed you to set an arbitrary feed pitch that was smaller than the predetermined feed pitch, but when changing this small feed pitch, you had to replace parts, etc. As a result, operation during typing was extremely difficult.

This invention was made in order to eliminate the drawbacks of the conventional horizontal feed device of Japanese typewriters as described above. To provide a lateral feed device for a Japanese typewriter which allows the feed pitch to be arbitrarily and easily selected.

This invention will be explained below based on embodiments shown in the drawings.

FIG. 1 is an external view of the cross-feed device for a Japanese typewriter according to this invention, in which 1 is a support plate fixed to a platen support frame (not shown), 2 is a key lever, 3 is a cross-feed lever, 4 is a tab lever, 5 is a free lever, 6 is a small pitch feed lever, 7 is a feed pitch adjustment dial, and 8 is a small feed pitch adjustment dial.

FIG. 2 shows the configuration of the main parts of the traversing device when FIG. The operating frame rod 12 is swingably attached, and the movement shown in FIG. It is designed so that it can be rotated toward the front of the paper. Also, the operating frame rod 1
2 is biased in a direction opposite to the direction in which the key lever 2 rotates by a spring (not shown).

A rotary piece 22 having a feed pawl 21 at one end is pivotally supported in the middle part of the operating frame rod 12 in a coaxial position with the main gear 9, and is supported by an arrow A by a spring (not shown).
biased in the direction. Further, at the end of the operating frame rod 12 opposite to the shaft support side, a stopper 32 is pivotally supported by a shaft 31, as particularly shown in FIG. 3 when FIG. 2 is viewed from the arrow a direction. It is biased in the direction of arrow B in FIG. 3 by a spring 33 in the figure. This stopper 32 is formed with a projecting portion 34 extending perpendicularly to the shaft 31, and an inclined surface 35 is formed at the lower end of the projecting portion 34.

A stopper 3 is attached to the horizontal frame 10 which is pivotally supported on the support plate 1.
The locking piece 3 is positioned near the protrusion 34 of 2.
6 is formed, and when the operating frame rod 12 is rotated in the direction toward you (in the direction of arrow C in FIG. 3) with respect to the paper surface of FIG. The overhanging portion 34 is the inclined surface 3
5 over the locking piece 36, and the upper end surface of the overhanging portion 34 engages with the lower end surface of the locking piece 36, so that the operating frame rod 12 is held in a swinging state. (state shown in Figure 3).

Furthermore, the tip 37 of the stopper 32 is located within the rotation area of the end 23 of the rotation piece 22 opposite to the feed pawl 21, and the rotation piece 22 is rotated in the direction opposite to the arrow A. The side part is the locking part 1 of the operating frame rod 12
3, the end 23 of the rotating piece 22 presses the tip 37 of the stopper 32 in the direction opposite to arrow A in FIG.
The engagement with 6 is released.

The feed pawl 21 of the rotating piece 22 is attached to the operating frame rod 1, as shown in FIG. 4 when FIG. 2 is viewed from the direction of arrow b.
When the main gear 2 is rotated (in the same direction as the arrow c in Fig. 3) by the operation of the key lever 2 (or the lateral feed lever 3), it meshes with the main gear 9 (the state shown in Fig. 4). When the operating frame rod 12 is in the standby position, the teeth of the main gear 9 are positioned in the recess 24 formed at the bottom of the feed pawl 21, and the feed pawl 21 is separated from the main gear 9. ing. In addition, in the standby position of the operating frame rod 12, the end of the rotary piece 22 on the side of the feed pawl 21 is in contact with the side of the feed pitch adjuster 25, and the locking pawl attached to the adjuster 25 is in contact with the side of the feed pitch adjuster 25. 26.

The adjuster 25 is coaxially supported on the support plate 1 with the main gear 9, and its tip is located near the outer periphery of the main gear 9.
The rotary piece 22 is located within the rotation area of the feed pawl 21, is connected to the feed pitch adjustment dial 7 by a gear device (not shown), and can be rotated around the axis by turning the feed pitch adjustment dial 7. It is becoming more and more popular.

A stopper 42 having a stopper claw 41 is pivotally supported on the operating frame rod 12 so as to be located near the outer periphery of the main gear 9, and is supported by an arrow D in FIG. 2 by a spring (not shown).
When the actuating frame rod 12 is in the standby position, the stop pawl 41 meshes with the main gear 9, and when the actuating frame rod 12 is rotated by the operation of the key lever 2 (or the lateral feed lever 3). , the stop pawl 41 is the main gear 9
It is becoming more and more distant from the

In FIGS. 5 to 7, the end opposite to the knob 52 of the small pitch feed lever 6 whose intermediate portion is supported by a shaft 51 on a support plate (not shown) (support plate 1 in FIG. 1) , an overhang 53 is formed, and on the upper surface of the overhang 53, the base end of a small pitch rotating piece 61 is supported by a shaft 60 coaxially with the main gear 9, as shown in FIG. It is biased in the direction of arrow E in FIG. 5 by a spring 62 .

A small pitch feed pawl 63 is formed approximately in the middle of this small pitch rotating piece 61, and as can be seen from FIG. The knob 52 of the small pitch feed lever 6 is spaced apart from the gear 9.
When is pressed in the direction of arrow F in FIG. 6 and rotated about the shaft 51, the small pitch rotating piece 61 is lifted, and the small pitch feed pawl 63 is moved to the main gear as shown by the chain line in FIG. It is designed to mesh with 9.

Further, at the end 64 opposite to the base end of the small pitch rotating piece 61, there is provided a support shaft 71 of the small pitch adjustment dial 8.
An adjustment pin 72 that is attached to via an arm 73 and rotated about a support shaft 71 is in contact with the adjustment pin 72 . The small pitch rotating piece 61 is urged by the spring 62 and pressed against the adjustment pin 72.
When the small pitch adjustment dial 8 is turned, the adjustment pin 72
When the small pitch rotating piece 61 is rotated around the support shaft 71, the small pitch rotating piece 61 is rotated accordingly.

Further, in FIG. 5 or 6, a stopper 81 is screwed onto the horizontal frame 10, and a small pitch feed pawl 6
3 meshes with the main gear 9, and when the small pitch rotating piece 61 rotates together with the main gear 9 in the direction opposite to the direction of arrow E in FIG. 5, it engages with the small pitch rotating piece 61 and rotates. Further rotation of the piece 61 is prevented. Therefore, the small pitch rotating piece 61 is connected to the adjustment pin 72.
Rotation is possible between the and stopper 81.

Further, a release piece 91 of the stopper 42 is supported on the support plate 1 by a shaft 95, and is biased in the direction of arrow G in FIG. 6 by a spring (not shown). As the engagement protrusion 54 formed at the intermediate portion of the small pitch feed lever 6 is engaged with the protrusion 93 formed near the small pitch feed lever 6, the small pitch feed lever 6 is pressed and rotated in the direction of arrow F. , protrusion 9
3 is pressed by the engaging protrusion 54 and rotated in the direction opposite to the arrow G. The arm 92 of the release piece 91 is separated from the stopper 42 when the small pitch feed lever 6 is in the standby position, and the release piece 91 is rotated in the direction opposite to the arrow G by the operation of the small pitch feed lever 6. When moved, the arm 43 of the stopper 42 engages with the arm 43 of the stopper 42 as shown by the chain line in FIG. As a result, the stop pawl 41 of the stopper 42 is separated from the main gear 9.

Next, the operation of the lateral feed device of the Japanese typewriter will be explained.

When lateral feeding is performed using the key lever 2 or the lateral feeding lever 3, the actuating frame rod 12 is moved toward the front side relative to the plane of the paper in FIG. The projecting portion 34 of the stopper 32 is rotated, and as shown in FIG.
0, the operating frame rod 12 is engaged with the third locking piece 36.
It is held in the rotated state shown in the figure.

At this time, as the operating frame rod 12 rotates, the stop pawl 41 of the stopper 42 comes off from the main gear 9, and at the same time, the rotating piece 22 is lifted and the feed pawl 21 meshes with the main gear 9. As the main gear 9 is rotated in the direction opposite to the arrow A by the lateral urging force of the platen connected to the main gear 9 by a gear device (not shown), the rotating piece 22 is rotated. It is rotated against the biasing force of the spring until it comes into contact with the locking portion 13 of the operating frame rod 12. This rotating piece 22 is the locking part 13
When the rotating piece 22 is rotated to the position where it comes into contact with
The end 23 of the stopper 32 presses the tip 37 of the stopper 32 in the direction opposite to the arrow A in FIG. Then, the operating frame rod 12 is moved by arrow C in Figs. 3 and 4 due to the biasing force of the spring.
The stop pawl 41 meshes with the main gear 9 and locks the main gear 9, and the feed pawl 21 comes off from the main gear 9 and the spring is attached. It is rotated by the force in the direction of arrow A in FIG. 2, comes into contact with the adjuster 25, is locked by the locking pawl 26, and is held at the original standby position.

Therefore, the platen is moved laterally by the amount of rotation of the rotating piece 22 between the adjuster 25 and the locking part 13, and the feed pitch adjustment dial 7 moves the platen
By rotating the rotating piece 22 and adjusting the amount of rotation of the rotating piece 22, the feeding pitch of the platen can be adjusted to an arbitrary feeding pitch.

Next, to explain the case of performing small pitch feed, when the small pitch feed lever 6 is rotated in the direction of arrow F in FIG. 6 by pressing the knob 52, the release piece 91
is rotated in the direction opposite to the arrow G, and the arm 92 presses the arm 43 of the stopper 42 to release the stopper 42.
is rotated in the direction opposite to arrow D in FIG. 5 to release the meshing state between the stop pawl 41 and the main gear 9. At the same time, the small pitch rotating piece 61 is lifted, the small pitch feed pawl 63 is meshed with the main gear 9 as shown by the chain line in FIG. 6, and the main gear 9 is rotated by the biasing force of the platen. 5, it is rotated in the direction opposite to the arrow E in FIG. 5 until it collides with the stopper 81.

Therefore, the main gear 9 is rotated by the amount of rotation of the small pitch rotating piece 61 between the adjustment pin 72 and the stopper 81 by the operation of the small pitch feed lever 6, and the amount of rotation of the main gear 9 is The platen will be moved laterally by the corresponding feed pitch.

When adjusting this small feed pitch,
When the small feed pitch adjustment dial 8 is turned to match the desired scale, the adjustment pin 72 rotates around the shaft 71, and the small pitch rotation piece 61 is rotated together with this.
By adjusting the amount of rotation of the small pitch feed pawl 63 to the stopper 81 when it is engaged with the main gear 9, a desired small feed pitch can be set.

Therefore, if the feed pitch is adjusted to 10 using the feed pitch adjustment dial 7 and the small feed pitch is adjusted to 5 using the small feed pitch adjustment dial 8, then
By operating the small pitch feed lever 6, half pitch feed can be easily performed. In addition, if the small feed pitch is adjusted to 3 when the feed pitch is 9, various uses such as being able to easily perform 1/3 pitch feed are possible.

As described above, this invention allows the selection of the small feed pitch to be performed independently of the selection of the cross feed pitch, and the small feed pitch can be adjusted by operating the small feed pitch adjustment dial. This allows you to easily change the small feed pitch during typing.
Change the feed pitch once set as before,
You can type smoothly without the trouble of having to set the feed pitch again after performing a small pitch feed. It has various excellent effects, such as eliminating the need for troublesome work such as replacing parts.

[Brief explanation of drawings]

Fig. 1 is an external view showing an embodiment of this invention, Fig. 2 is a configuration diagram showing the main parts of the pitch feed mechanism of the same embodiment, Figs. 3 and 4 are partial views of Fig. 2,
FIG. 5 is a configuration diagram showing the main parts of the small pitch feeding mechanism of the same embodiment, FIG. 6 is a side view of FIG. 5, and FIG. 7 is a perspective view showing the main parts of FIG. 5. 6...Small pitch feed lever, 8...Small feed pitch adjustment dial, 9...Main gear, 60...Shaft, 6
1...Small pitch rotating piece, 71...Spindle, 73...
arm.

Claims (1)

[Scope of utility model registration request] A rotary piece that has a feed pawl and is supported approximately coaxially with the center axis of the main gear, an adjustment member that adjusts the feed pitch, a stopper for the rotary piece, and a gear that is removably engaged with the main gear. A stopper for the main gear that meshes with the main gear when activated, and a transverse feed lever that engages the feed pawl with the main gear and disengages the stopper for the main gear from the main gear. The rotating piece rotates between the adjustment member and the main gear stopper as the main gear rotates, so that the main gear rotates by the feed pitch set by the adjustment member. It is designed to have a small pitch feed pawl, a small pitch rotating piece that is supported approximately coaxially with the central axis of the main gear, a small feed pitch adjustment member that adjusts the small feed pitch, A stopper for the pitch rotating piece, and a small pitch feed lever that meshes the small pitch feed pawl with the main gear and separates the main gear stopper from the main gear when activated,
The small pitch feed pawl meshes with the main gear by the operation of the small pitch feed lever, and the small pitch rotating piece engages the small pitch adjusting member and the small pitch rotating piece stopper as the main gear rotates. In a horizontal feed device for a Japanese typewriter, in which the main gear rotates by a small feed pitch set by the small feed pitch adjusting member, the small feed pitch adjusting member , a small feed pitch adjustment dial 8 is pivotally supported on the support plate 1 by a support shaft 71, one end is fixed to the support shaft 71, and the other end is connected to the main gear by a shaft 60. At the other end of the small pitch rotating piece 61, which is pivotally supported at a substantially coaxial position with 9,
It has a connected arm 73, and as the small feed pitch adjustment dial 8 rotates, the small pitch rotating piece 6
1 is adapted to rotate around a shaft 60.